Added the correct version to --version funktion

add drop (idk if it is working right)
add prog5 and prog6

.gitignore

@@ -3,3 +3,4 @@ cmake-build-debug
 njvm
 njvm.dSYM
 njvm.exe
+njvm2

CMakeLists.txt

@@ -5,22 +5,5 @@ set(CMAKE_C_STANDARD 99)
 
 add_compile_options(-g -Wall -pedantic)
 
-add_executable(njvm njvm.c
-        njvm.h)
-
-# Include directories for njvm executable
-target_include_directories(njvm PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/bigint/build/include)
-
-# Add the library
-add_library(bigint STATIC ${CMAKE_SOURCE_DIR}/bigint/src/bigint.c
-        support.c
-        GC.c
-        heap.c
-        heap.h)
-
-# Include directories for the bigint library
-target_include_directories(bigint PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/bigint/build/include)
-
-# Link the executable with the library
-target_link_libraries(njvm PRIVATE bigint)
-
+add_executable(ninja njvm.c
+        SDA.c)

GC.c

@@ -1,99 +0,0 @@
-#ifndef GC
-#define GC
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include "stackslot.c"
-#include "stack.c"
-#include "bigint.h"
-#include "instruktion.c"
-#include "record.c"
-#include "SDA.c"
-
-typedef struct {
-    unsigned int freiZeiger;
-    unsigned int size;
-    unsigned char *data;
-} *heapPartRef;
-
-// SDA
-struct sda sda;
-
-// Stack
-struct stack stack;
-#define SIZE 1000;
-
-//Register
-struct stack reg;
-
-
-//heapPartRef primary;
-//heapPartRef secondary;
-//unsigned int heapSize;
-//void initHeap(int size){
-//    heapSize = 2 * sizeof (unsigned int) + size;
-//    if ((primary = malloc(heapSize)) == NULL)  perror("malloc");
-//    if ((secondary = malloc(heapSize)) == NULL)  perror("malloc");
-//}
-//
-//
-//// nimmt obj und copier es in den secondary Speicher
-//void copy(ObjRef obj){
-//    if(obj->brokenHeart == true) return;
-//    obj->brokenHeart = true;
-//    if (IS_PRIMITIVE(obj)){
-//        if(obj->size > secondary->size-secondary->freiZeiger) perror("Heap is to Small");
-//        obj->forward_pointer = memcpy((void *) secondary->data[secondary->freiZeiger], obj, obj->size);
-//        secondary->freiZeiger += obj->size;
-//    } else {
-//        if(sizeof(*obj) + (GET_ELEMENT_COUNT(obj) * sizeof(void *)) > secondary->size-secondary->freiZeiger) perror("Heap is to Small");
-//        GET_ELEMENT_COUNT(obj);
-//        obj->forward_pointer = memcpy((void *) secondary->data[secondary->freiZeiger], obj, sizeof(*obj) + (GET_ELEMENT_COUNT(obj) * sizeof(void *)));
-//        secondary->freiZeiger += sizeof(*obj) + (GET_ELEMENT_COUNT(obj) * sizeof(void *));
-//        for (int i = 0; i < GET_ELEMENT_COUNT(obj); ++i) {
-//            copy(getField(obj,i));
-//        }
-//    }
-//}
-//
-//void runGC(){
-//    int rootSize = *sda.size + *reg.size + *stack.size + 4;
-//    ObjRef* rootObjs = malloc(sizeof(ObjRef) * rootSize);
-//    if(rootObjs == NULL) perror("malloc");
-//    int counter = 0;
-//    //Bip
-//    rootObjs[0] = bip.op1;
-//    rootObjs[counter++] = bip.op2;
-//    rootObjs[counter++] = bip.res;
-//    rootObjs[counter++] = bip.rem;
-//    //SDA
-//    for (int i = 0; i < *sda.size; ++i) {
-//        rootObjs[counter++] = sda.sda[i];
-//    }
-//    //REG
-//    for (int i = 0; i < *reg.size; ++i) {
-//        rootObjs[counter++] = reg.stack[i].u.objRef;
-//    }
-//    //STACK
-//    for (int i = 0; i < *stack.size; ++i) {
-//        rootObjs[counter++] = stack.stack[i].u.objRef;
-//    }
-//
-//    for (int i = 0; i < rootSize; ++i) {
-//        if(rootObjs[i] == NULL) continue;
-//        copy(rootObjs[i]);
-//    }
-//    heapPartRef temp = primary;
-//    primary = secondary;
-//    secondary = temp;
-//
-//}
-//
-//void *alloc(size_t size){
-//    if(primary->size-primary->freiZeiger < size){
-//        runGC();
-//    }
-//    primary->freiZeiger += size;
-//    return (void *) primary->data[primary->freiZeiger - size];
-//}
-#endif

Makefile

@@ -1,12 +1,29 @@
 # Makefile for a simple C program
-build:
-	cd ./bigint; make; cd ..
-	gcc -g -Wall -Ibigint/build/include -o support.o -c support.c
-	gcc -g -Wall -Ibigint/build/include -o njvm.o -c njvm.c
-	gcc -g -Wall -Lbigint/build/lib -o njvm njvm.o support.o -lbigint
 
-run: build
-	./njvm prog.bin
+# Compiler
+CC = gcc
 
-debug: build
-	./njvm --debug prog.bin
+# Compiler flags
+CFLAGS = -g -Wall -std=c99 -pedantic
+
+# Source file
+SRC = njvm.c
+
+# Executable name
+TARGET = njvm
+
+# Default target
+all: 
+	$(CC) $(CFLAGS) -o $(TARGET) $(SRC)
+# Clean up
+clean:
+	rm -f $(OBJ) $(TARGET)
+
+run: all
+	./$(TARGET)
+
+nja:	./nja/nja$(V)
+	./nja/nja$(V) $(IN) $(OUT)
+
+njc: ./njc/njc$(V)
+	./njc/njc$(V) $(IN) $(OUT)

Makefile3

@@ -1,43 +0,0 @@
-# Makefile for a simple C program
-
-# Compiler
-CC = gcc
-
-# program to Run
-F = prog.bin
-
-# Compiler flags
-CFLAGS = -g -Wall -Ibigint/build/include
-
-LDFLAGS = -g -Wall -Lbigint/build/lib
-
-# Source file
-SRC = njvm.c 
-
-# Executable name
-TARGET = njvm
-
-njvm.o: 
-	$(CC) $(CFLAGS) -o njvm.o -c njvm.c
-
-support.o:
-	$(CC) $(CFLAGS) -o support.o -c support.c
-
-# Default target
-all: njvm.o support.o
-	$(CC) $(LDFLAGS) -o $(TARGET) njvm.o support.o -lbigint
-# Clean up
-clean:
-	rm -f $(OBJ) $(TARGET)
-
-debug: all
-	./$(TARGET) --debug $(F) 
-
-run: all
-	./$(TARGET) $(F)
-
-nja:	./nja/nja$(V)
-	./nja/nja$(V) $(IN) $(OUT)
-
-njc: ./njc/njc$(V)
-	./njc/njc$(V) $(IN) $(OUT)

SDA.c

@@ -4,24 +4,24 @@
 #ifndef SDA
 #define SDA
 #include <stdio.h>
-#include "stackslot.c"
+
 struct sda {
-    int *size;
-    ObjRef *sda;
+    unsigned int *sda;
+    int size;
 };
 
-ObjRef getSDA(int i, struct sda s) {
-    return s.sda[i];
+int getSDA(unsigned int offset, struct sda *sda) {
+    return sda->sda[offset];
 }
 
-void setSDA(int point, ObjRef val, struct sda s) {
-    if (val == NULL) perror("Value is null");
-    s.sda[point] = val;
+void setSDA(unsigned int offset, int value, struct sda *sda) {
+    sda->sda[offset] = value;
 }
 
-void printSDA(struct sda s) {
-    for (int i = 0; i < *s.size; i++) {
-        printf("%i\n", *(int *)getSDA(i, s)->data);
+void printSDA(struct sda *sda) {
+    printf("SDA:\n");
+    for (int i = 0; i < sda->size; ++i) {
+        printf("[%d] = %d\n", i, sda->sda[i]);
     }
 }
 

bigint/Makefile

@@ -1,22 +0,0 @@
-#
-# Makefile for big integer library and test
-#
-
-DIRS = src tst
-
-all: clean
-		for i in $(DIRS) ; do \
-		  $(MAKE) -C $$i install ; \
-		done
-
-clean:
-		for i in $(DIRS) ; do \
-		  $(MAKE) -C $$i clean ; \
-		done
-		rm -rf ./build
-		rm -f *~
-
-dist:		clean
-		(cd .. ; \
-		 tar -cvf bigint.tar bigint ; \
-		 gzip -f bigint.tar)

bigint/README

@@ -1,92 +0,0 @@
-The "bigint" Package
-====================
-
-1. What is it?
---------------
-
-This package implements a multiple-precision integer arithmetic package,
-i.e., a collection of functions which can calculate with integers having
-arbitrarily many digits. The algorithms are taken from [D. Knuth: The
-Art of Computer Programming, Vol. 2, Seminumerical Algorithms], the
-implementation language is C.
-
-
-2. "Multiple Precision" - how does it work?
--------------------------------------------
-
-Each integer number is represented as an array of digits. The array
-is large enough to hold the number of digits necessary to represent
-the number. Each digit occupies a single byte, so the number base of
-this representation is 256. Addition, subtraction, and multiplication
-work as we all have learned it: perform the desired operation digit
-by digit, starting from the least significant digit, and observing
-any "carries" from one place to the next higher one. Division is a
-little bit more complicated because there is a certain amount of
-guesswork involved. Knuth gives a formal treatment of this guesswork.
-
-
-3. How do I use it?
--------------------
-
-Because every big integer may have a differently sized array to hold
-its digits, these structures are dynamically allocated on the heap of
-the C runtime system, and accessed by pointers. If you want to perform
-an arithmetic operation on one or two big integers, you have to load
-the corresponding pointers into a structure called BIP ("Big Integer
-Processor"), and call the arithmetic function. When the function has
-returned, the pointer to the result of the operation can be found in
-another component of the BIP. The following functions are available:
-
-    int bigSgn(void);                        /* sign */
-    int bigCmp(void);                        /* comparison */
-    void bigNeg(void);                       /* negation */
-    void bigAdd(void);                       /* addition */
-    void bigSub(void);                       /* subtraction */
-    void bigMul(void);                       /* multiplication */
-    void bigDiv(void);                       /* division */
-    void bigFromInt(int n);                  /* conversion int --> big */
-    int bigToInt(void);                      /* conversion big --> int */
-    void bigRead(FILE *in);                  /* read a big integer */
-    void bigPrint(FILE *out);                /* print a big integer */
-    void bigDump(FILE *out, BigObjRef bigObjRef);  /* dump a big integer */
-
-Some of these functions accept or return ordinary integers. For the
-exact definition of each function's interface, please see the comments
-in the function's source.
-
-
-4. What else is needed?
------------------------
-
-The library tries to detect fatal errors in using its functions (e.g.,
-null pointers to operands) as well as internal errors (which "cannot
-happen"). In either case a user-supplied error routine is called, which
-is supposed to print an error message and then to terminate the program.
-
-The library does not attempt to manage memory. For this purpose, it
-relies on a user-supplied function "void* newPrimObject(int dataSize)",
-which should allocate sufficiently many bytes and return a pointer to
-a created object. In addition, the library needs to access a data field
-- that implements the size-as-needed cocept - within the created object, 
-to actualy manage the data structures that represent the values of the 
-integer number. For this, the following function can be used:
-
-void * getPrimObjectDataPointer(void * obj){
-  ObjRef oo = ((ObjRef)  (obj));
-  return oo->data;
-}
-
-This function must also be a user-supplied function that must be 
-implemented by the program that wants to use this library.
-
-For details about these three user-supplied functions take a look in 
-the file "support.c" in the directory "tst".
-
-
-5. What is in the directory "tst"?
-----------------------------------
-
-Well, you may have guessed it already: these are test cases for the
-library. You can learn how to link against the library by inspecting
-the "Makefile" for the tests, and you can find a simple implementation
-of the support library.

bigint/build/include/bigint.h

@@ -1,60 +0,0 @@
-/*
- * bigint.h -- big integer library
- */
-
-
-#ifndef _BIGINT_H_
-#define _BIGINT_H_
-
-
-/* object representation */
-typedef void* BigObjRef;
-
-
-#include <stdio.h>
-
-
-typedef struct {
-  int nd;			/* number of digits; array may be bigger */
-				/* nd = 0 exactly when number = 0 */
-  unsigned char sign;		/* one of BIG_NEGATIVE or BIG_POSITIVE */
-				/* zero always has BIG_POSITIVE here */
-  unsigned char digits[1];	/* the digits proper; number base is 256 */
-				/* LS digit first; MS digit is not zero */
-} Big;
-
-#include "support.h"
-
-
-/* big integer processor registers */
-
-typedef struct {
-  BigObjRef op1;			/* first (or single) operand */
-  BigObjRef op2;			/* second operand (if present) */
-  BigObjRef res;			/* result of operation */
-  BigObjRef rem;			/* remainder in case of division */
-} BIP;
-
-extern BIP bip;			/* registers of the processor */
-
-
-/* big integer processor functions */
-
-int bigSgn(void);			/* sign */
-int bigCmp(void);			/* comparison */
-void bigNeg(void);			/* negation */
-void bigAdd(void);			/* addition */
-void bigSub(void);			/* subtraction */
-void bigMul(void);			/* multiplication */
-void bigDiv(void);			/* division */
-
-void bigFromInt(int n);			/* conversion int --> big */
-int bigToInt(void);			/* conversion big --> int */
-
-void bigRead(FILE *in);			/* read a big integer */
-void bigPrint(FILE *out);		/* print a big integer */
-
-void bigDump(FILE *out, BigObjRef bigObjRef);	/* dump a big integer object */
-
-
-#endif /* _BIGINT_H_ */

bigint/build/include/support.h

@@ -1,15 +0,0 @@
-/*
- * support.h -- object representation and support functions
- */
-
-
-#ifndef _SUPPORT_H_
-#define _SUPPORT_H_
-
-/* support functions */
-
-void fatalError(char *msg);		/* print a message and exit */
-void * newPrimObject(int dataSize);	/* create a new primitive object */
-void * getPrimObjectDataPointer(void * primObject);
-
-#endif /* _SUPPORT_H_ */

bigint/src/Makefile

@@ -1,26 +0,0 @@
-#
-# Makefile for big integer library
-#
-
-BUILD = ../build
-
-CC = gcc
-CFLAGS = -g -Wall
-
-all:		support.h bigint.h libbigint.a
-
-install:	all
-		mkdir -p $(BUILD)/include
-		cp support.h $(BUILD)/include
-		cp bigint.h $(BUILD)/include
-		mkdir -p $(BUILD)/lib
-		cp libbigint.a $(BUILD)/lib
-
-libbigint.a:	bigint.o
-		ar -crs libbigint.a bigint.o
-
-bigint.o:	bigint.c bigint.h support.h
-		$(CC) $(CFLAGS) -o bigint.o -c bigint.c
-
-clean:
-		rm -f *~ bigint.o libbigint.a

bigint/src/bigint.c

@@ -1,987 +0,0 @@
-/*
- * bigint.c -- big integer library
- */
-
-
-#include <stdio.h>
-#include <ctype.h>
-
-#include "bigint.h"
-
-/**************************************************************/
-
-/* debugging */
-
-
-#define DIV_CHK_01	0
-#define DIV_CHK_02	0
-#define DIV_CHK_03	0
-#define DIV_CHK_04	0
-#define DIV_CHK_05	0
-#define DIV_CHK_06	0
-#define DIV_CHK_07	0
-#define DIV_CHK_08	0
-#define DIV_CHK_09	0
-#define DIV_CHK_10	0
-#define DIV_CHK_11	0
-
-
-/**************************************************************/
-
-/* big integer representation */
-
-
-#define BIG_NEGATIVE		((unsigned char) 0)
-#define BIG_POSITIVE		((unsigned char) 1)
-
-
-#define BIG_PTR(bigObjRef)			((Big *) (getPrimObjectDataPointer(bigObjRef)))
-#define GET_ND(bigObjRef)			(BIG_PTR(bigObjRef)->nd)
-#define SET_ND(bigObjRef, val)		(BIG_PTR(bigObjRef)->nd = (val))
-#define GET_SIGN(bigObjRef)		(BIG_PTR(bigObjRef)->sign)
-#define SET_SIGN(bigObjRef, val)		(BIG_PTR(bigObjRef)->sign = (val))
-#define GET_DIGIT(bigObjRef, i)		(BIG_PTR(bigObjRef)->digits[i])
-#define SET_DIGIT(bigObjRef, i, val)	(BIG_PTR(bigObjRef)->digits[i] = (val))
-
-
-/**************************************************************/
-
-/* global data */
-
-
-/*
- * registers of the big integer processor
- */
-BIP bip = {
-  NULL,		/* op1 */
-  NULL,		/* op2 */
-  NULL,		/* res */
-  NULL,		/* rem */
-};
-
-
-/**************************************************************/
-
-
-/*
- * construct a new big integer object
- *
- * number of digits is given by parameter
- * a reference to a proper object is returned
- * but no component of the big integer is set
- *
- * ATTENTION: All object references stored in
- * places other than the bip registers may become
- * invalid as soon as this function is called!
- */
-static BigObjRef newBig(int nd) {
-  int dataSize;
-  BigObjRef bigObjRef;
-
-  dataSize = sizeof(int) + 1 + nd;
-  bigObjRef = newPrimObject(dataSize);
-  return bigObjRef;
-}
-
-
-/**************************************************************/
-
-/* big integer unsigned arithmetic */
-
-
-/*
- * exchange bip.op1 and bip.op2
- */
-static void bigXchg(void) {
-  BigObjRef tmp;
-
-  tmp = bip.op1;
-  bip.op1 = bip.op2;
-  bip.op2 = tmp;
-}
-
-
-/*
- * big integer unsigned comparison
- *
- * operands in bip.op1 and bip.op2
- * result is < 0, = 0, or > 0 if and only if the
- * same relation holds for bip.op1 and bip.op2
- */
-static int bigUcmp(void) {
-  int nd1;
-  int nd2;
-  int diff;
-
-  /* compare sizes */
-  nd1 = GET_ND(bip.op1);
-  nd2 = GET_ND(bip.op2);
-  if (nd1 != nd2) {
-    /* sizes are different: we know the bigger number */
-    return nd1 - nd2;
-  }
-  /* sizes are equal: we must look at the digits */
-  while (nd1--) {
-    diff = (int) GET_DIGIT(bip.op1, nd1) -
-           (int) GET_DIGIT(bip.op2, nd1);
-    if (diff != 0) {
-      return diff;
-    }
-  }
-  /* the numbers are equal */
-  return 0;
-}
-
-
-/*
- * big integer unsigned addition
- *
- * operands in bip.op1 and bip.op2
- * result in bip.res
- */
-static void bigUadd(void) {
-  int nd1;
-  int nd2;
-  int i;
-  unsigned short carry;
-  unsigned short aux;
-  int xchgFlag;
-
-  /* make sure op1 has at least as many digits as op2 */
-  nd1 = GET_ND(bip.op1);
-  nd2 = GET_ND(bip.op2);
-  if (nd1 < nd2) {
-    /* exchange operands */
-    bigXchg();
-    i = nd1;
-    nd1 = nd2;
-    nd2 = i;
-    xchgFlag = 1;
-  } else {
-    /* don't exchange operands */
-    xchgFlag = 0;
-  }
-  /* allocate result */
-  bip.res = newBig(nd1 + 1);
-  /* copy op2 to result */
-  for (i = 0; i < nd2; i++) {
-    SET_DIGIT(bip.res, i, GET_DIGIT(bip.op2, i));
-  }
-  /* fill result with 0 up to size of op1 */
-  for (; i < nd1; i++) {
-    SET_DIGIT(bip.res, i, 0);
-  }
-  /* res = op1 + res */
-  carry = 0x00;
-  for (i = 0; i < nd1; i++) {
-    aux = (unsigned short) GET_DIGIT(bip.op1, i) +
-          (unsigned short) GET_DIGIT(bip.res, i) +
-          carry;
-    SET_DIGIT(bip.res, i, aux & 0xFF);
-    carry = aux >> 8;
-  }
-  SET_DIGIT(bip.res, i, carry);
-  /* determine actual size of result */
-  i = nd1 + 1;
-  while (--i >= 0 && GET_DIGIT(bip.res, i) == 0) ;
-  SET_ND(bip.res, i + 1);
-  /* restore operands */
-  if (xchgFlag) {
-    bigXchg();
-  }
-}
-
-
-/*
- * big integer unsigned subtraction
- *
- * operands in bip.op1 and bip.op2
- * result in bip.res, must not be negative
- */
-static void bigUsub(void) {
-  int nd1;
-  int nd2;
-  int i;
-  unsigned short carry;
-  unsigned short aux;
-
-  /* op1 must have at least as many digits as op2 */
-  nd1 = GET_ND(bip.op1);
-  nd2 = GET_ND(bip.op2);
-  if (nd1 < nd2) {
-    /* unsigned subtraction would yield negative result */
-    fatalError("internal library error #1 - THIS SHOULD NEVER HAPPEN!");
-  }
-  /* allocate result */
-  bip.res = newBig(nd1);
-  /* copy op2 to result */
-  for (i = 0; i < nd2; i++) {
-    SET_DIGIT(bip.res, i, GET_DIGIT(bip.op2, i));
-  }
-  /* fill result with 0 up to size of op1 */
-  for (; i < nd1; i++) {
-    SET_DIGIT(bip.res, i, 0);
-  }
-  /* res = op1 - res */
-  carry = 0x01;
-  for (i = 0; i < nd1; i++) {
-    aux = (unsigned short) GET_DIGIT(bip.op1, i) -
-          (unsigned short) GET_DIGIT(bip.res, i) +
-          carry + 0xFF;
-    SET_DIGIT(bip.res, i, aux & 0xFF);
-    carry = aux >> 8;
-  }
-  if (carry != 0x01) {
-    /* unsigned subtraction would yield negative result */
-    fatalError("internal library error #2 - THIS SHOULD NEVER HAPPEN!");
-  }
-  /* determine actual size of result */
-  i = nd1;
-  while (--i >= 0 && GET_DIGIT(bip.res, i) == 0) ;
-  SET_ND(bip.res, i + 1);
-}
-
-
-/*
- * big integer unsigned multiplication
- *
- * operands in bip.op1 and bip.op2
- * result in bip.res
- */
-static void bigUmul(void) {
-  int nd1;
-  int nd2;
-  int i, j, k;
-  unsigned short carry;
-  unsigned short aux;
-
-  /* get sizes of operands */
-  nd1 = GET_ND(bip.op1);
-  nd2 = GET_ND(bip.op2);
-  /* allocate result */
-  bip.res = newBig(nd1 + nd2);
-  /* reset lower nd1 digits of result */
-  for (i = 0; i < nd1; i++) {
-    SET_DIGIT(bip.res, i, 0);
-  }
-  /* res = op1 * op2 */
-  for (j = 0; j < nd2; j++) {
-    carry = 0x00;
-    for (k = j, i = 0; i < nd1; k++, i++) {
-      aux = (unsigned short) GET_DIGIT(bip.op1, i) *
-            (unsigned short) GET_DIGIT(bip.op2, j) +
-            (unsigned short) GET_DIGIT(bip.res, k) +
-            carry;
-      SET_DIGIT(bip.res, k, aux & 0xFF);
-      carry = aux >> 8;
-    }
-    SET_DIGIT(bip.res, k, carry);
-  }
-  /* determine actual size of result */
-  i = nd1 + nd2;
-  while (--i >= 0 && GET_DIGIT(bip.res, i) == 0) ;
-  SET_ND(bip.res, i + 1);
-}
-
-
-/*
- * big integer unsigned division by single digit divisor
- *
- * dividend in bip.rem, divisor in parameter
- * quotient in bip.rem, remainder is returned
- */
-static unsigned char bigUdiv1(unsigned char divisor) {
-  BigObjRef tmp;
-  int nd;
-  int i;
-  unsigned short d, r;
-  unsigned short aux;
-
-  /* get size of dividend */
-  nd = GET_ND(bip.rem);
-  /* check for division by zero */
-  d = (unsigned short) divisor;
-  if (d == 0) {
-    fatalError("internal library error #3 - THIS SHOULD NEVER HAPPEN!");
-  }
-  /* allocate result */
-  tmp = newBig(nd);
-  /* tmp = dividend / divisor, r = dividend % divisor */
-  r = 0;
-  for (i = nd - 1; i >= 0; i--) {
-    aux = (r << 8) | (unsigned short) GET_DIGIT(bip.rem, i);
-    SET_DIGIT(tmp, i, aux / d);
-    r = aux % d;
-  }
-  /* determine actual size of quotient */
-  i = nd;
-  while (--i >= 0 && GET_DIGIT(tmp, i) == 0) ;
-  SET_ND(tmp, i + 1);
-  /* store quotient */
-  bip.rem = tmp;
-  /* return remainder */
-  return (unsigned char) r;
-}
-
-
-/*
- * big integer unsigned division
- *
- * dividend in bip.op1, divisor in bip.op2
- * quotient in bip.res, remainder in bip.rem
- */
-static void bigUdiv(void) {
-  BigObjRef tmp;
-  int nd1;
-  int nd2;
-  int nd3;
-  int i, j, k, l;
-  unsigned char r;
-  unsigned short scale;
-  unsigned short carry;
-  unsigned short aux;
-  unsigned short qhat;
-  unsigned short v1, v2;
-  unsigned short uj0, uj1, uj2, two;
-
-  /* get sizes of operands */
-  nd1 = GET_ND(bip.op1);
-  nd2 = GET_ND(bip.op2);
-  /* check for division by zero */
-  if (nd2 == 0) {
-    fatalError("division by zero");
-  }
-  /* check for small dividend */
-  if (bigUcmp() < 0) {
-    /* res = 0 */
-    bip.res = newBig(0);
-    SET_ND(bip.res, 0);
-    /* rem = op1; BUT THIS HAS TO BE A COPY! */
-    bip.rem = newBig(nd1);
-    for (i = 0; i < nd1; i++) {
-      SET_DIGIT(bip.rem, i, GET_DIGIT(bip.op1, i));
-    }
-    SET_ND(bip.rem, nd1);
-    return;
-  }
-  /* check for single digit divisor */
-  if (nd2 == 1) {
-    /* yes - use simple division by single digit divisor */
-    bip.rem = bip.op1;
-    r = bigUdiv1(GET_DIGIT(bip.op2, 0));
-    bip.res = bip.rem;
-    if (r == 0) {
-      bip.rem = newBig(0);
-      SET_ND(bip.rem, 0);
-    } else {
-      bip.rem = newBig(1);
-      SET_ND(bip.rem, 1);
-      SET_DIGIT(bip.rem, 0, r);
-    }
-    return;
-  }
-  /*
-   * now for the general case
-   */
-#if DIV_CHK_01
-  printf("div_chk #01: division, general case\n");
-  printf("             dividend = ");
-  bigDump(stdout, bip.op1);
-  printf("\n");
-  printf("             divisor  = ");
-  bigDump(stdout, bip.op2);
-  printf("\n");
-#endif
-  /* determine scale factor for normalization */
-  scale = (unsigned short) 256 /
-          ((unsigned short) GET_DIGIT(bip.op2, nd2 - 1) + 1);
-#if DIV_CHK_02
-  printf("div_chk #02: scale factor = %02X\n", scale);
-#endif
-  /* normalize dividend, result is in bip.rem */
-  bip.rem = newBig(nd1 + 1);
-  carry = 0x00;
-  for (i = 0; i < nd1; i++) {
-    aux = (unsigned short) GET_DIGIT(bip.op1, i) * scale +
-          carry;
-    SET_DIGIT(bip.rem, i, aux & 0xFF);
-    carry = aux >> 8;
-  }
-  SET_DIGIT(bip.rem, i, carry);
-  SET_ND(bip.rem, nd1 + 1);
-#if DIV_CHK_03
-  printf("div_chk #03: normalized dividend = ");
-  bigDump(stdout, bip.rem);
-  printf("\n");
-#endif
-  /* normalize divisor, result is in bip.res */
-  bip.res = newBig(nd2);
-  carry = 0x00;
-  for (i = 0; i < nd2; i++) {
-    aux = (unsigned short) GET_DIGIT(bip.op2, i) * scale +
-          carry;
-    SET_DIGIT(bip.res, i, aux & 0xFF);
-    carry = aux >> 8;
-  }
-  if (carry != 0x00) {
-    /* overflow in divisor normalization */
-    fatalError("internal library error #4 - THIS SHOULD NEVER HAPPEN!");
-  }
-  SET_ND(bip.res, nd2);
-#if DIV_CHK_04
-  printf("div_chk #04: normalized divisor  = ");
-  bigDump(stdout, bip.res);
-  printf("\n");
-#endif
-  /* allocate quotient */
-  nd3 = nd1 - nd2 + 1;
-  tmp = newBig(nd3);
-  /* extract the two most significand digits of divisor */
-  v1 = (unsigned short) GET_DIGIT(bip.res, nd2 - 1);
-  v2 = (unsigned short) GET_DIGIT(bip.res, nd2 - 2);
-  /* loop on digits of dividend and compute digits of quotient */
-  /* j is index into dividend, k is index into quotient */
-  for (j = nd1, k = nd3 - 1; k >= 0; j--, k--) {
-#if DIV_CHK_05
-    printf("div_chk #05: j = %d, k = %d\n", j, k);
-#endif
-    /* calculate qhat */
-    uj0 = (unsigned short) GET_DIGIT(bip.rem, j);
-    uj1 = (unsigned short) GET_DIGIT(bip.rem, j - 1);
-    uj2 = (unsigned short) GET_DIGIT(bip.rem, j - 2);
-    two = (uj0 << 8) | uj1;
-    if (uj0 == v1) {
-      qhat = (unsigned short) 255;
-#if DIV_CHK_06
-      printf("div_chk #06a: qhat = %02X\n", qhat);
-#endif
-    } else {
-      qhat = two / v1;
-#if DIV_CHK_06
-      printf("div_chk #06b: qhat = %02X\n", qhat);
-#endif
-    }
-    while (qhat * v2 > (((two - qhat * v1) << 8) | uj2)) {
-      qhat--;
-#if DIV_CHK_07
-      printf("div_chk #07: qhat decremented, is now %02X\n", qhat);
-#endif
-    }
-    /* multiply and subtract */
-    /* l is index into dividend, i is index into divisor */
-    carry = 0xFF;
-    for (l = j - nd2, i = 0; i < nd2; l++, i++) {
-      aux = (unsigned short) GET_DIGIT(bip.rem, l) -
-            (unsigned short) GET_DIGIT(bip.res, i) * qhat +
-            carry + 0xFE01;
-      SET_DIGIT(bip.rem, l, aux & 0xFF);
-      carry = aux >> 8;
-    }
-    aux = (unsigned short) GET_DIGIT(bip.rem, l) +
-          carry + 0xFE01;
-    SET_DIGIT(bip.rem, l, aux & 0xFF);
-    carry = aux >> 8;
-#if DIV_CHK_08
-    printf("div_chk #08: remainder = ");
-    bigDump(stdout, bip.rem);
-    printf("\n");
-#endif
-    /* test remainder and possibly add back */
-    if (carry != 0xFF) {
-      /* qhat is one too large */
-      qhat--;
-#if DIV_CHK_09
-      printf("div_chk #09: qhat final correction, is now %02X\n", qhat);
-#endif
-      /* add back */
-      /* l is index into dividend, i is index into divisor */
-      carry = 0x00;
-      for (l = j - nd2, i = 0; i < nd2; l++, i++) {
-        aux = (unsigned short) GET_DIGIT(bip.rem, l) +
-              (unsigned short) GET_DIGIT(bip.res, i) +
-              carry;
-        SET_DIGIT(bip.rem, l, aux & 0xFF);
-        carry = aux >> 8;
-      }
-      aux = (unsigned short) GET_DIGIT(bip.rem, l) +
-            carry;
-      SET_DIGIT(bip.rem, l, aux & 0xFF);
-      carry = aux >> 8;
-      if (carry != 0x01) {
-        /* missing carry in add-back sum */
-        fatalError("internal library error #5 - THIS SHOULD NEVER HAPPEN!");
-      }
-#if DIV_CHK_10
-      printf("div_chk #10: remainder = ");
-      bigDump(stdout, bip.rem);
-      printf("\n");
-#endif
-    }
-    /* store quotient digit */
-    SET_DIGIT(tmp, k, qhat);
-#if DIV_CHK_11
-    printf("div_chk #11: quotient digit = %02X\n", qhat);
-#endif
-  }
-  /* finish quotient */
-  i = nd3;
-  while (--i >= 0 && GET_DIGIT(tmp, i) == 0) ;
-  SET_ND(tmp, i + 1);
-  bip.res = tmp;
-  /* finish and unnormalize remainder */
-  i = nd1 + 1;
-  while (--i >= 0 && GET_DIGIT(bip.rem, i) == 0) ;
-  SET_ND(bip.rem, i + 1);
-  r = bigUdiv1(scale);
-  if (r != 0) {
-    /* non-zero remainder in unnormalization */
-    fatalError("internal library error #6 - THIS SHOULD NEVER HAPPEN!");
-  }
-}
-
-
-/**************************************************************/
-
-/* nil reference exception */
-
-
-static void nilRefException(void) {
-  fatalError("big integer library detected illegal nil reference");
-}
-
-
-/**************************************************************/
-
-/* big integer arithmetic */
-
-
-/*
- * big integer sign
- *
- * operand in bip.op1
- * result is < 0, = 0, or > 0 if and only if
- * the same relation holds for bip.op1
- */
-int bigSgn(void) {
-  if (bip.op1 == NULL) {
-    nilRefException();
-  }
-  if (GET_ND(bip.op1) == 0) {
-    return 0;
-  }
-  if (GET_SIGN(bip.op1) == BIG_POSITIVE) {
-    return 1;
-  } else {
-    return -1;
-  }
-}
-
-
-/*
- * big integer comparison
- *
- * operands in bip.op1 and bip.op2
- * result is < 0, = 0, or > 0 if and only if the
- * same relation holds for bip.op1 and bip.op2
- */
-int bigCmp(void) {
-  if (bip.op1 == NULL ||
-      bip.op2 == NULL) {
-    nilRefException();
-  }
-  if (GET_SIGN(bip.op1) == BIG_POSITIVE) {
-    if (GET_SIGN(bip.op2) == BIG_POSITIVE) {
-      /* op1 >= 0 and op2 >= 0 */
-      return bigUcmp();
-    } else {
-      /* op1 >= 0 and op2 < 0 */
-      return 1;
-    }
-  } else {
-    if (GET_SIGN(bip.op2) == BIG_POSITIVE) {
-      /* op1 < 0 and op2 >= 0 */
-      return -1;
-    } else {
-      /* op1 < 0 and op2 < 0 */
-      return -bigUcmp();
-    }
-  }
-}
-
-
-/*
- * big integer negation
- *
- * operand in bip.op1
- * result in bip.res
- */
-void bigNeg(void) {
-  int nd;
-  int i;
-
-  if (bip.op1 == NULL) {
-    nilRefException();
-  }
-  /* make copy of operand */
-  nd = GET_ND(bip.op1);
-  bip.res = newBig(nd);
-  for (i = 0; i < nd; i++) {
-    SET_DIGIT(bip.res, i, GET_DIGIT(bip.op1, i));
-  }
-  SET_ND(bip.res, nd);
-  /* store inverted sign */
-  if (GET_SIGN(bip.op1) == BIG_NEGATIVE || nd == 0) {
-    SET_SIGN(bip.res, BIG_POSITIVE);
-  } else {
-    SET_SIGN(bip.res, BIG_NEGATIVE);
-  }
-}
-
-
-/*
- * big integer addition
- *
- * operands in bip.op1 and bip.op2
- * result in bip.res
- */
-void bigAdd(void) {
-  if (bip.op1 == NULL ||
-      bip.op2 == NULL) {
-    nilRefException();
-  }
-  if (GET_SIGN(bip.op1) == BIG_POSITIVE) {
-    if (GET_SIGN(bip.op2) == BIG_POSITIVE) {
-      /* op1 >= 0 and op2 >= 0 */
-      bigUadd();
-      SET_SIGN(bip.res, BIG_POSITIVE);
-    } else {
-      /* op1 >= 0 and op2 < 0 */
-      if (bigUcmp() >= 0) {
-        /* |op1| >= |op2| */
-        bigUsub();
-        SET_SIGN(bip.res, BIG_POSITIVE);
-      } else {
-        /* |op1| < |op2| */
-        bigXchg();
-        bigUsub();
-        SET_SIGN(bip.res, BIG_NEGATIVE);
-        bigXchg();
-      }
-    }
-  } else {
-    if (GET_SIGN(bip.op2) == BIG_POSITIVE) {
-      /* op1 < 0 and op2 >= 0 */
-      if (bigUcmp() <= 0) {
-        /* |op1| <= |op2| */
-        bigXchg();
-        bigUsub();
-        SET_SIGN(bip.res, BIG_POSITIVE);
-        bigXchg();
-      } else {
-        /* |op1| > |op2| */
-        bigUsub();
-        SET_SIGN(bip.res, BIG_NEGATIVE);
-      }
-    } else {
-      /* op1 < 0 and op2 < 0 */
-      bigUadd();
-      SET_SIGN(bip.res, BIG_NEGATIVE);
-    }
-  }
-}
-
-
-/*
- * big integer subtraction
- *
- * operands in bip.op1 and bip.op2
- * result in bip.res
- */
-void bigSub(void) {
-  if (bip.op1 == NULL ||
-      bip.op2 == NULL) {
-    nilRefException();
-  }
-  if (GET_SIGN(bip.op1) == BIG_POSITIVE) {
-    if (GET_SIGN(bip.op2) == BIG_POSITIVE) {
-      /* op1 >= 0 and op2 >= 0 */
-      if (bigUcmp() >= 0) {
-        /* |op1| >= |op2| */
-        bigUsub();
-        SET_SIGN(bip.res, BIG_POSITIVE);
-      } else {
-        /* |op1| < |op2| */
-        bigXchg();
-        bigUsub();
-        SET_SIGN(bip.res, BIG_NEGATIVE);
-        bigXchg();
-      }
-    } else {
-      /* op1 >= 0 and op2 < 0 */
-      bigUadd();
-      SET_SIGN(bip.res, BIG_POSITIVE);
-    }
-  } else {
-    if (GET_SIGN(bip.op2) == BIG_POSITIVE) {
-      /* op1 < 0 and op2 >= 0 */
-      bigUadd();
-      SET_SIGN(bip.res, BIG_NEGATIVE);
-    } else {
-      /* op1 < 0 and op2 < 0 */
-      if (bigUcmp() <= 0) {
-        /* |op1| <= |op2| */
-        bigXchg();
-        bigUsub();
-        SET_SIGN(bip.res, BIG_POSITIVE);
-        bigXchg();
-      } else {
-        /* |op1| > |op2| */
-        bigUsub();
-        SET_SIGN(bip.res, BIG_NEGATIVE);
-      }
-    }
-  }
-}
-
-
-/*
- * big integer multiplication
- *
- * operands in bip.op1 and bip.op2
- * result in bip.res
- */
-void bigMul(void) {
-  if (bip.op1 == NULL ||
-      bip.op2 == NULL) {
-    nilRefException();
-  }
-  bigUmul();
-  if (GET_SIGN(bip.op1) == GET_SIGN(bip.op2) || GET_ND(bip.res) == 0) {
-    SET_SIGN(bip.res, BIG_POSITIVE);
-  } else {
-    SET_SIGN(bip.res, BIG_NEGATIVE);
-  }
-}
-
-
-/*
- * big integer division, truncating towards zero
- *
- * dividend in bip.op1, divisor in bip.op2
- * quotient in bip.res, remainder in bip.rem
- */
-void bigDiv(void) {
-  if (bip.op1 == NULL ||
-      bip.op2 == NULL) {
-    nilRefException();
-  }
-  bigUdiv();
-  if (GET_SIGN(bip.op1) == GET_SIGN(bip.op2) || GET_ND(bip.res) == 0) {
-    SET_SIGN(bip.res, BIG_POSITIVE);
-  } else {
-    SET_SIGN(bip.res, BIG_NEGATIVE);
-  }
-  if (GET_SIGN(bip.op1) == BIG_POSITIVE || GET_ND(bip.rem) == 0) {
-    SET_SIGN(bip.rem, BIG_POSITIVE);
-  } else {
-    SET_SIGN(bip.rem, BIG_NEGATIVE);
-  }
-}
-
-
-/**************************************************************/
-
-/* big integer conversions */
-
-
-/*
- * conversion int --> big
- *
- * operand in parameter
- * result in bip.res
- */
-void bigFromInt(int n) {
-  int i;
-
-  bip.res = newBig(sizeof(int));
-  if (n < 0) {
-    n = -n;
-    SET_SIGN(bip.res, BIG_NEGATIVE);
-  } else {
-    SET_SIGN(bip.res, BIG_POSITIVE);
-  }
-  for (i = 0; i < sizeof(int); i++) {
-    SET_DIGIT(bip.res, i, n & 0xFF);
-    n >>= 8;
-  }
-  while (--i >= 0 && GET_DIGIT(bip.res, i) == 0) ;
-  SET_ND(bip.res, i + 1);
-}
-
-
-/*
- * conversion big --> int
- *
- * operand in bip.op1
- * result is returned
- */
-int bigToInt(void) {
-  int nd;
-  int i;
-  int res;
-
-  if (bip.op1 == NULL) {
-    nilRefException();
-  }
-  nd = GET_ND(bip.op1);
-  if (nd > 4 ||
-      (nd == 4 && GET_DIGIT(bip.op1, 3) >= 0x80)) {
-    fatalError("big integer too big for conversion to int");
-  }
-  res = 0;
-  for (i = nd - 1; i >= 0; i--) {
-    res <<= 8;
-    res |= (unsigned int) GET_DIGIT(bip.op1, i);
-  }
-  if (GET_SIGN(bip.op1) == BIG_NEGATIVE) {
-    res = -res;
-  }
-  return res;
-}
-
-
-/**************************************************************/
-
-/* big integer I/O */
-
-
-/*
- * read a big integer
- *
- * stream to read from in parameter
- * result in bip.res
- */
-void bigRead(FILE *in) {
-  int c;
-  int positive;
-
-  c = fgetc(in);
-  while (isspace(c)) {
-    c = fgetc(in);
-  }
-  if (c == '-') {
-    positive = 0;
-    c = fgetc(in);
-  } else {
-    positive = 1;
-    if (c == '+') {
-      c = fgetc(in);
-    }
-  }
-  if (!isdigit(c)) {
-    fatalError("no digits in input");
-  }
-  bigFromInt(10);
-  bip.rem = bip.res;
-  bigFromInt(0);
-  while (isdigit(c)) {
-    bip.op1 = bip.res;
-    bip.op2 = bip.rem;
-    bigUmul();
-    bip.op1 = bip.res;
-    bigFromInt(c - '0');
-    bip.op2 = bip.res;
-    bigUadd();
-    c = fgetc(in);
-  }
-  ungetc(c, in);
-  if (positive || GET_ND(bip.res) == 0) {
-    SET_SIGN(bip.res, BIG_POSITIVE);
-  } else {
-    SET_SIGN(bip.res, BIG_NEGATIVE);
-  }
-}
-
-
-/*
- * print a big integer
- *
- * stream to write to in parameter
- * number to print in bip.op1
- */
-void bigPrint(FILE *out) {
-  int nd;
-  unsigned char r;
-  int skipZero;
-
-  if (bip.op1 == NULL) {
-    nilRefException();
-  }
-  nd = GET_ND(bip.op1);
-  if (nd == 0) {
-    fprintf(out, "0");
-    return;
-  }
-  if (GET_SIGN(bip.op1) == BIG_NEGATIVE) {
-    fprintf(out, "-");
-  }
-  /* number of digits in base 10 = number of digits
-     in base 256 * log10(256), and log10(256) < 2.5  */
-  nd = 2 * nd + nd / 2;
-  bip.rem = bip.op1;
-  bigFromInt(10);
-  bip.op2 = bip.res;
-  bigFromInt(1);
-  while (nd != 0) {
-    bip.op1 = bip.res;
-    bigUmul();
-    nd--;
-  }
-  bip.op1 = bip.rem;
-  bip.op2 = bip.res;
-  skipZero = 1;
-  do {
-    bigUdiv();
-    if (GET_ND(bip.res) == 0) {
-      if (!skipZero) {
-        fprintf(out, "0");
-      }
-    } else {
-      if (GET_ND(bip.res) != 1) {
-        fatalError("internal library error #7 - THIS SHOULD NEVER HAPPEN!");
-      }
-      fprintf(out, "%c", GET_DIGIT(bip.res, 0) + '0');
-      skipZero = 0;
-    }
-    bip.op1 = bip.rem;
-    bip.rem = bip.op2;
-    r = bigUdiv1(10);
-    bip.op2 = bip.rem;
-  } while (r == 0);
-}
-
-
-/**************************************************************/
-
-/* debugging */
-
-
-/*
- * dump a big integer object
- */
-void bigDump(FILE *out, BigObjRef bigObjRef) {
-  int nd;
-  unsigned char sign;
-  int i;
-
-  if (bigObjRef == NULL) {
-    nilRefException();
-  }
-  nd = GET_ND(bigObjRef);
-  sign = GET_SIGN(bigObjRef);
-  fprintf(out, "[%d %c", nd, sign == BIG_POSITIVE ? '+' : '-');
-  for (i = 0; i < nd; i++) {
-    fprintf(out, " %02X", GET_DIGIT(bigObjRef, i));
-  }
-  fprintf(out, "]");
-}

bigint/src/bigint.h

@@ -1,60 +0,0 @@
-/*
- * bigint.h -- big integer library
- */
-
-
-#ifndef _BIGINT_H_
-#define _BIGINT_H_
-
-
-/* object representation */
-typedef void* BigObjRef;
-
-
-#include <stdio.h>
-
-
-typedef struct {
-  int nd;			/* number of digits; array may be bigger */
-				/* nd = 0 exactly when number = 0 */
-  unsigned char sign;		/* one of BIG_NEGATIVE or BIG_POSITIVE */
-				/* zero always has BIG_POSITIVE here */
-  unsigned char digits[1];	/* the digits proper; number base is 256 */
-				/* LS digit first; MS digit is not zero */
-} Big;
-
-#include "support.h"
-
-
-/* big integer processor registers */
-
-typedef struct {
-  BigObjRef op1;			/* first (or single) operand */
-  BigObjRef op2;			/* second operand (if present) */
-  BigObjRef res;			/* result of operation */
-  BigObjRef rem;			/* remainder in case of division */
-} BIP;
-
-extern BIP bip;			/* registers of the processor */
-
-
-/* big integer processor functions */
-
-int bigSgn(void);			/* sign */
-int bigCmp(void);			/* comparison */
-void bigNeg(void);			/* negation */
-void bigAdd(void);			/* addition */
-void bigSub(void);			/* subtraction */
-void bigMul(void);			/* multiplication */
-void bigDiv(void);			/* division */
-
-void bigFromInt(int n);			/* conversion int --> big */
-int bigToInt(void);			/* conversion big --> int */
-
-void bigRead(FILE *in);			/* read a big integer */
-void bigPrint(FILE *out);		/* print a big integer */
-
-void bigDump(FILE *out, BigObjRef bigObjRef);	/* dump a big integer object */
-
-
-#endif /* _BIGINT_H_ */

bigint/src/support.h

@@ -1,15 +0,0 @@
-/*
- * support.h -- object representation and support functions
- */
-
-
-#ifndef _SUPPORT_H_
-#define _SUPPORT_H_
-
-/* support functions */
-
-void fatalError(char *msg);		/* print a message and exit */
-void * newPrimObject(int dataSize);	/* create a new primitive object */
-void * getPrimObjectDataPointer(void * primObject);
-
-#endif /* _SUPPORT_H_ */

bigint/tst/Makefile

@@ -1,28 +0,0 @@
-#
-# Makefile for big integer test
-#
-
-BUILD = ../build
-
-CC = gcc
-CFLAGS = -g -Wall -I$(BUILD)/include
-LDFLAGS = -g -Wall -L$(BUILD)/lib
-LDLIBS = -lbigint
-
-all:		testbip
-
-install:	all
-		mkdir -p $(BUILD)/bin
-		cp testbip $(BUILD)/bin
-
-testbip:	testbip.o support.o
-		$(CC) $(LDFLAGS) -o testbip testbip.o support.o $(LDLIBS)
-
-testbip.o:	testbip.c
-		$(CC) $(CFLAGS) -o testbip.o -c testbip.c
-
-support.o:	support.c
-		$(CC) $(CFLAGS) -o support.o -c support.c
-
-clean:
-		rm -f *~ testbip.o support.o testbip

bigint/tst/support.c

@@ -1,55 +0,0 @@
-/*
- * support.c -- support functions for big integer library
- */
-
-
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "support.h"
-
-typedef struct {
-      unsigned int size;                /* byte count of payload data */
-        unsigned char data[1];  /* payload data, size as needed */
-} *ObjRef;
-
-
-/*
- * This routine is called in case a fatal error has occurred.
- * It should print the error message and terminate the program.
- */
-void fatalError(char *msg) {
-  printf("Fatal error: %s\n", msg);
-  exit(1);
-}
-
-
-/*
- * This function is called whenever a new primitive object with
- * a certain amount of internal memory is needed. It should return
- * an object reference to a regular object, which contains a freely
- * usable memory area of at least the requested size (measured in
- * bytes). The memory area need not be initialized in any way.
- *
- * Note that this function may move all objects in memory at will
- * (due to, e.g., garbage collection), as long as the pointers in
- * the global "bip" structure point to the correct objects when
- * the function returns.
- */
-void * newPrimObject(int dataSize) {
-  ObjRef bigObjRef;
-  int size = sizeof(unsigned int) + dataSize * sizeof(unsigned char);
-  bigObjRef = malloc(size);
-  bigObjRef->size = size;
-  if (bigObjRef == NULL) {
-    fatalError("newPrimObject() got no memory");
-  }
-  bigObjRef->size = size;
-  return bigObjRef;
-}
-
-void * getPrimObjectDataPointer(void * obj){
-    ObjRef oo = ((ObjRef)  (obj));
-    return oo->data;
-}
-

codeReader.c

@@ -6,13 +6,13 @@
 #include <stdlib.h>
 #include "program.c"
 
-unsigned int fromFile(char *path, struct program program) {
+unsigned int fromFile(char *path, struct program *program) {
     unsigned int countInstructions;
     unsigned int staticVars;
     FILE *fptr;
     fptr = fopen(path, "r");
     if (fptr == NULL) {
-        printf("Error: cannot open code file %s", path);
+        printf("Error: cannot open code file %s\n", path);
         exit(EXIT_FAILURE);
     }
     unsigned int buffer[4];

compile_flags.txt

@@ -1,3 +0,0 @@
--Ibigint/build/include
--Lbigint/build/lib
--lbigint

consts.c

@@ -1,7 +1,5 @@
 #ifndef CONSTS
 #define CONSTS
-#define VERSION 8
+#define VERSION 4
 
-#endif /* ifndef CONSTS
-#define CONSTS
-#define VERSION 2; */
+#endif 

debugMenu.c

@@ -1,55 +0,0 @@
-#ifndef DEBUGMENU
-#define DEBUGMENU
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "stack.c"
-#include "stack.c"
-
-void inspect(struct stack s, int fp){
-  //todo Does not work dont know why
-  char input[20];
-  char ref[20];
-  char refStr[20];
-  printf("DEBUG [inspect]: stack, datam object?");
-  fgets(input,20,stdin);
-  if (input[0] == 's') printStack(s, fp);
-  if (input[0] == 'd'){/* todo */ }
-  if (input[0] == 'o'){
-    scanf("%19s",ref);
-    ObjRefContainer container;
-    for (int i = 0; i<= container.size; i++) {
-      sprintf(refStr, "%p", (void *)&container.refs[i]);
-      if(strcmp(ref, refStr) == 0) printf("Adress exists\n");
-      else printf("Adress doeas not exist\n");
-      printf("%s",refStr);
-    }
-  }
-}
-void list(void){
-  //todo
-}
-void breakpoint(int *bp){
-    printf("BREAKPOINT: ");
-    char input[20];
-    fgets(input,20,stdin);
-    *bp = atoi(input);
-}
-
-void debugMenu(int fp, struct stack stack, int* debug, int point, int* bp){
-  char input[20];
-  while (true) {
-    printf("DEBUG(%i): inspect, list, breakpoint, run, step, quit?",point);
-    fgets(input, 20, stdin);
-    printf("%s",input);
-    if(input[0] == 'i') {inspect(stack,fp);}
-    if(input[0] == 'l') list();
-    if(input[0] == 'b') breakpoint(bp);
-    if(input[0] == 's') break;
-    if(input[0] == 'r') {*debug = 0; break;};
-    if(input[0] == 'q') exit(0);
-    strcpy(input, "");
-  }
-}
-
-#endif /* ifndef DEBUGMENU */

factor.nj

@@ -1,794 +0,0 @@
-//
-// factor.nj -- factorize the numbers 10^n+1, n = 1..30
-//
-
-//--------------------------------------------------------------
-
-// handle list of factors
-
-type List = record {
-  Integer value;
-  List next;
-};
-
-List addToList(Integer value, List next) {
-  local List newList;
-  newList = new(List);
-  newList.value = value;
-  newList.next = next;
-  return newList;
-}
-
-List sortList(List list) {
-  local List result;
-  local List element;
-  local List p;
-  result = nil;
-  while (list != nil) {
-    element = list;
-    list = list.next;
-    if (result == nil || element.value < result.value) {
-      element.next = result;
-      result = element;
-    } else {
-      p = result;
-      while (p.next != nil && element.value >= p.next.value) {
-        p = p.next;
-      }
-      element.next = p.next;
-      p.next = element;
-    }
-  }
-  return result;
-}
-
-void showList(List list) {
-  if (list == nil) {
-    writeString("1");
-  } else {
-    while (true) {
-      writeInteger(list.value);
-      list = list.next;
-      if (list == nil) {
-        break;
-      }
-      writeString(" * ");
-    }
-  }
-  writeString("\n");
-}
-
-Integer evalList(List list) {
-  local Integer result;
-  result = 1;
-  while (list != nil) {
-    result = result * list.value;
-    list = list.next;
-  }
-  return result;
-}
-
-List fuseLists(List list1, List list2) {
-  local List element;
-  while (list1 != nil) {
-    element = list1;
-    list1 = list1.next;
-    element.next = list2;
-    list2 = element;
-  }
-  return list2;
-}
-
-//--------------------------------------------------------------
-
-// compute 10^n+1
-
-Integer computeTarget(Integer n) {
-  local Integer x;
-  local Integer i;
-  x = 1;
-  i = 0;
-  while (i < n) {
-    x = x * 10;
-    i = i + 1;
-  }
-  x = x + 1;
-  return x;
-}
-
-void testComputeTarget() {
-  writeString("computeTarget()\n");
-  writeString("---------------\n");
-  writeString("target(1) = ");
-  writeInteger(computeTarget(1));
-  writeString("\n");
-  writeString("target(2) = ");
-  writeInteger(computeTarget(2));
-  writeString("\n");
-  writeString("target(3) = ");
-  writeInteger(computeTarget(3));
-  writeString("\n");
-  writeString("target(4) = ");
-  writeInteger(computeTarget(4));
-  writeString("\n");
-  writeString("\n");
-}
-
-//--------------------------------------------------------------
-
-// build a table of small primes
-
-global Integer smallPrimesLimit;
-
-global Integer[] primes;
-global Integer numPrimes;
-
-void showSmallPrimes() {
-  local Integer i;
-  local Integer k;
-  i = 0;
-  k = 0;
-  while (i < numPrimes) {
-    writeInteger(primes[i]);
-    writeString("  ");
-    k = k + 1;
-    if (k == 8) {
-      k = 0;
-      writeString("\n");
-    }
-    i = i + 1;
-  }
-  if (k != 0) {
-    writeString("\n");
-  }
-}
-
-void enterSmallPrime(Integer p) {
-  local Integer n;
-  local Integer[] a;
-  local Integer i;
-  if (sizeof(primes) == numPrimes) {
-    n = 2 * numPrimes;
-    a = new(Integer[n]);
-    i = 0;
-    while (i < numPrimes) {
-      a[i] = primes[i];
-      i = i + 1;
-    }
-    primes = a;
-  }
-  primes[numPrimes] = p;
-  numPrimes = numPrimes + 1;
-}
-
-Boolean isPrime(Integer n) {
-  local Integer t;
-  t = 3;
-  while (t * t <= n) {
-    if (n % t == 0) {
-      return false;
-    }
-    t = t + 2;
-  }
-  return true;
-}
-
-void calcSmallPrimes(Integer limit) {
-  local Integer i;
-  smallPrimesLimit = limit;
-  primes = new(Integer[256]);
-  numPrimes = 0;
-  enterSmallPrime(2);
-  enterSmallPrime(3);
-  i = 5;
-  while (true) {
-    if (i > smallPrimesLimit) {
-      break;
-    }
-    if (isPrime(i)) {
-      enterSmallPrime(i);
-    }
-    i = i + 2;
-    if (i > smallPrimesLimit) {
-      break;
-    }
-    if (isPrime(i)) {
-      enterSmallPrime(i);
-    }
-    i = i + 4;
-  }
-}
-
-void testCalcSmallPrimes() {
-  writeString("calcSmallPrimes()\n");
-  writeString("-----------------\n");
-  writeString("primes less than or equal to 100:\n");
-  calcSmallPrimes(100);
-  showSmallPrimes();
-  writeString("number of primes less than or equal to 100: ");
-  writeInteger(numPrimes);
-  writeString("\n");
-  calcSmallPrimes(1000);
-  writeString("number of primes less than or equal to 1000: ");
-  writeInteger(numPrimes);
-  writeString("\n");
-  calcSmallPrimes(10000);
-  writeString("number of primes less than or equal to 10000: ");
-  writeInteger(numPrimes);
-  writeString("\n");
-  calcSmallPrimes(100000);
-  writeString("number of primes less than or equal to 100000: ");
-  writeInteger(numPrimes);
-  writeString("\n");
-  writeString("\n");
-}
-
-//--------------------------------------------------------------
-
-// try to find a small prime factor of a given number
-
-Integer smallPrimeFactor(Integer n) {
-  local Integer i;
-  i = 0;
-  while (i < numPrimes) {
-    if (n % primes[i] == 0) {
-      // prime factor found
-      return primes[i];
-    }
-    i = i + 1;
-  }
-  // no prime factor less than or equal to smallPrimesLimit found
-  return 0;
-}
-
-void testSmallPrimeFactor() {
-  calcSmallPrimes(10000);
-  writeString("smallPrimeFactor()\n");
-  writeString("------------------\n");
-  writeString("small prime factor of 2: ");
-  writeInteger(smallPrimeFactor(2));
-  writeString("\n");
-  writeString("small prime factor of 222: ");
-  writeInteger(smallPrimeFactor(222));
-  writeString("\n");
-  writeString("small prime factor of 17*19*23: ");
-  writeInteger(smallPrimeFactor(17*19*23));
-  writeString("\n");
-  writeString("small prime factor of 7919: ");
-  writeInteger(smallPrimeFactor(7919));
-  writeString("\n");
-  writeString("small prime factor of 987654323: ");
-  writeInteger(smallPrimeFactor(987654323));
-  writeString("\n");
-  writeString("\n");
-}
-
-//--------------------------------------------------------------
-
-// compute b^n mod m
-
-Integer powerMod(Integer b, Integer n, Integer m) {
-  local Integer a;
-  a = 1;
-  while (n != 0) {
-    if (n % 2 == 0) {
-      b = (b * b) % m;
-      n = n / 2;
-    } else {
-      a = (a * b) % m;
-      n = n - 1;
-    }
-  }
-  return a;
-}
-
-void testPowerMod() {
-  writeString("powerMod()\n");
-  writeString("----------\n");
-  writeString("2^16 mod 7: ");
-  writeInteger(powerMod(2, 16, 7));
-  writeString("\n");
-  writeString("3^10 mod 19: ");
-  writeInteger(powerMod(3, 10, 19));
-  writeString("\n");
-  writeString("123^987654323 mod 987654323: ");
-  writeInteger(powerMod(123, 987654323, 987654323));
-  writeString("\n");
-  writeString("\n");
-}
-
-//--------------------------------------------------------------
-
-// compute greatest common divisor
-
-Integer GCD(Integer a, Integer b) {
-  local Integer r;
-  if (a < 0) {
-    a = -a;
-  }
-  if (b < 0) {
-    b = -b;
-  }
-  while (b != 0) {
-    r = a % b;
-    a = b;
-    b = r;
-  }
-  return a;
-}
-
-void testGCD() {
-  writeString("GCD()\n");
-  writeString("-----\n");
-  writeString("GCD(3*5*5*11*37, 2*2*5*37*53) = ");
-  writeInteger(GCD(3*5*5*11*37, 2*2*5*37*53));
-  writeString("\n");
-  writeString("\n");
-}
-
-//--------------------------------------------------------------
-
-// Rabin-Miller test
-
-Boolean isComposite(Integer n) {
-  local Integer q;
-  local Integer t;
-  local Integer i;
-  local Integer a;
-  local Integer e;
-  local Integer b;
-  q = n - 1;
-  t = 0;
-  while (q % 2 == 0) {
-    q = q / 2;
-    t = t + 1;
-  }
-  i = 0;
-  while (i < 20) {
-    a = primes[i];
-    if (a >= n) {
-      break;
-    }
-    e = 0;
-    b = powerMod(a, q, n);
-    if (b != 1) {
-      while (b != 1 && b != n - 1 && e <= t - 2) {
-        b = (b * b) % n;
-        e = e + 1;
-      }
-      if (b != n - 1) {
-        return true;
-      }
-    }
-    i = i + 1;
-  }
-  return false;
-}
-
-void testIsComposite() {
-  local Integer n;
-  local Integer k;
-  writeString("isComposite()\n");
-  writeString("-------------\n");
-  writeString("odd numbers in [3..99] which are probably prime:\n");
-  n = 3;
-  k = 0;
-  while (n < 100) {
-    if (!isComposite(n)) {
-      writeInteger(n);
-      writeString("  ");
-      k = k + 1;
-      if (k == 8) {
-        k = 0;
-        writeString("\n");
-      }
-    }
-    n = n + 2;
-  }
-  if (k != 0) {
-    writeString("\n");
-  }
-  n = 1234567;
-  while (n < 1234607) {
-    writeInteger(n);
-    writeString(" is ");
-    if (isComposite(n)) {
-      writeString("definitely composite\n");
-    } else {
-      writeString("probably prime\n");
-    }
-    n = n + 2;
-  }
-  writeString("\n");
-}
-
-//--------------------------------------------------------------
-
-Boolean provePrime(Integer n) {
-  // not implemented yet
-  return false;
-}
-
-void testProvePrime() {
-  writeString("provePrime()\n");
-  writeString("------------\n");
-  writeString("<not implemented yet>\n");
-  writeString("\n");
-}
-
-//--------------------------------------------------------------
-
-// Pollard's rho method
-
-Integer findFactor1(Integer n) {
-  local Integer y;
-  local Integer x;
-  local Integer x1;
-  local Integer k;
-  local Integer l;
-  local Integer p;
-  local Integer c;
-  local Integer g;
-  local Integer r;
-  y = 2;
-  x = 2;
-  x1 = 2;
-  k = 1;
-  l = 1;
-  p = 1;
-  c = 0;
-  while (true) {
-    x = (x * x + 1) % n;
-    p = (p * (x1 - x)) % n;
-    c = c + 1;
-    if (c == 20) {
-      g = GCD(p, n);
-      if (g > 1) {
-        break;
-      }
-      y = x;
-      c = 0;
-    }
-    k = k - 1;
-    if (k == 0) {
-      g = GCD(p, n);
-      if (g > 1) {
-        break;
-      }
-      x1 = x;
-      k = l;
-      l = 2 * l;
-      r = 0;
-      while (r < k) {
-        x = (x * x + 1) % n;
-        r = r + 1;
-      }
-      y = x;
-      c = 0;
-    }
-  }
-  do {
-    y = (y * y + 1) % n;
-    g = GCD(x1 - y, n);
-  } while (g == 1);
-  if (g < n) {
-    return g;
-  } else {
-    return 0;
-  }
-}
-
-Integer findFactor2(Integer n) {
-  local Integer y;
-  local Integer x;
-  local Integer x1;
-  local Integer k;
-  local Integer l;
-  local Integer p;
-  local Integer c;
-  local Integer g;
-  local Integer r;
-  y = 2;
-  x = 2;
-  x1 = 2;
-  k = 1;
-  l = 1;
-  p = 1;
-  c = 0;
-  while (true) {
-    x = (x * x - 1) % n;
-    p = (p * (x1 - x)) % n;
-    c = c + 1;
-    if (c == 20) {
-      g = GCD(p, n);
-      if (g > 1) {
-        break;
-      }
-      y = x;
-      c = 0;
-    }
-    k = k - 1;
-    if (k == 0) {
-      g = GCD(p, n);
-      if (g > 1) {
-        break;
-      }
-      x1 = x;
-      k = l;
-      l = 2 * l;
-      r = 0;
-      while (r < k) {
-        x = (x * x - 1) % n;
-        r = r + 1;
-      }
-      y = x;
-      c = 0;
-    }
-  }
-  do {
-    y = (y * y - 1) % n;
-    g = GCD(x1 - y, n);
-  } while (g == 1);
-  if (g < n) {
-    return g;
-  } else {
-    return 0;
-  }
-}
-
-Integer findFactor3(Integer n) {
-  local Integer y;
-  local Integer x;
-  local Integer x1;
-  local Integer k;
-  local Integer l;
-  local Integer p;
-  local Integer c;
-  local Integer g;
-  local Integer r;
-  y = 2;
-  x = 2;
-  x1 = 2;
-  k = 1;
-  l = 1;
-  p = 1;
-  c = 0;
-  while (true) {
-    x = (x * x + 3) % n;
-    p = (p * (x1 - x)) % n;
-    c = c + 1;
-    if (c == 20) {
-      g = GCD(p, n);
-      if (g > 1) {
-        break;
-      }
-      y = x;
-      c = 0;
-    }
-    k = k - 1;
-    if (k == 0) {
-      g = GCD(p, n);
-      if (g > 1) {
-        break;
-      }
-      x1 = x;
-      k = l;
-      l = 2 * l;
-      r = 0;
-      while (r < k) {
-        x = (x * x + 3) % n;
-        r = r + 1;
-      }
-      y = x;
-      c = 0;
-    }
-  }
-  do {
-    y = (y * y + 3) % n;
-    g = GCD(x1 - y, n);
-  } while (g == 1);
-  if (g < n) {
-    return g;
-  } else {
-    return 0;
-  }
-}
-
-Integer findFactor(Integer n) {
-  local Integer r;
-  r = findFactor1(n);
-  if (r != 0) {
-    return r;
-  }
-  r = findFactor2(n);
-  if (r != 0) {
-    return r;
-  }
-  r = findFactor3(n);
-  return r;
-}
-
-void testFindFactor() {
-  writeString("findFactor()\n");
-  writeString("------------\n");
-  writeString("5*5*5 = ");
-  writeInteger(5*5*5);
-  writeString(" is a multiple of ");
-  writeInteger(findFactor(5*5*5));
-  writeString("\n");
-  writeString("4421*5743*7699 = ");
-  writeInteger(4421*5743*7699);
-  writeString(" is a multiple of ");
-  writeInteger(findFactor(4421*5743*7699));
-  writeString("\n");
-  writeInteger(9999000099990001);
-  writeString(" is a multiple of ");
-  writeInteger(findFactor(9999000099990001));
-  writeString("\n");
-  writeString("\n");
-}
-
-//--------------------------------------------------------------
-
-List factorize(Integer x, Boolean verbose) {
-  local List factors;
-  local Integer f;
-  local Integer f1;
-  local Integer f2;
-  local List moreFactors;
-  if (verbose) {
-    writeString("factorize(");
-    writeInteger(x);
-    writeString(")\n");
-  }
-  factors = nil;
-  while (x > 1) {
-    f = smallPrimeFactor(x);
-    if (f == 0) {
-      // no small prime factor found
-      if (x < smallPrimesLimit * smallPrimesLimit) {
-        // we know that x is prime
-        f = x;
-      } else {
-        // we don't know anything
-        break;
-      }
-    }
-    if (verbose) {
-      writeString("detected small prime factor ");
-      writeInteger(f);
-      writeString("\n");
-    }
-    factors = addToList(f, factors);
-    x = x / f;
-  }
-  if (x == 1) {
-    // x has been completely factorized
-    if (verbose) {
-      writeString("the number has been completely factorized\n");
-    }
-    return factors;
-  }
-  if (verbose) {
-    writeString("interim result:\n    the remaining factor ");
-    writeInteger(x);
-    writeString("\n    doesn't have any prime factors < ");
-    writeInteger(smallPrimesLimit);
-    writeString("\n    ");
-  }
-  if (isComposite(x)) {
-    // x is definitely composite
-    if (verbose) {
-      writeString("but is definitely composite\n");
-    }
-    f1 = findFactor(x);
-    if (f1 == 0) {
-      // cannot factorize x, give up
-      writeString("cannot factorize ");
-      writeInteger(x);
-      writeString(", giving up\n");
-      factors = addToList(x, factors);
-    } else {
-      // x = f1 * f2
-      f2 = x / f1;
-      if (verbose) {
-        writeString("this number can be split into ");
-        writeInteger(f1);
-        writeString(" and ");
-        writeInteger(f2);
-        writeString("\n");
-      }
-      moreFactors = factorize(f1, verbose);
-      factors = fuseLists(moreFactors, factors);
-      moreFactors = factorize(f2, verbose);
-      factors = fuseLists(moreFactors, factors);
-    }
-  } else {
-    // x is very probably prime
-    if (verbose) {
-      writeString("and is very probably prime\n");
-    }
-    if (provePrime(x)) {
-      if (verbose) {
-        writeString("the primality of ");
-        writeInteger(x);
-        writeString(" has been proven\n");
-      }
-    } else {
-      writeString("cannot prove the primality of ");
-      writeInteger(x);
-      writeString(", giving up\n");
-    }
-    factors = addToList(x, factors);
-  }
-  return factors;
-}
-
-void testFactorize(Boolean verbose) {
-  local List factors;
-  writeString("factorize()\n");
-  writeString("-----------\n");
-  calcSmallPrimes(7);
-  showSmallPrimes();
-  writeString("3*5*7*7*141*49 = \n");
-  factors = factorize(3*5*7*7*141*49, verbose);
-  showList(sortList(factors));
-  writeString("\n");
-}
-
-//--------------------------------------------------------------
-
-void showBar() {
-  writeString("---------------------------------");
-  writeString("-------------------------------\n");
-}
-
-void run(Boolean verbose) {
-  local Integer i;
-  local Integer x;
-  local List factors;
-  local Integer y;
-  calcSmallPrimes(10000);
-  showBar();
-  i = 1;
-  while (i <= 30) {
-    writeString("10^");
-    writeInteger(i);
-    writeString("+1 = ");
-    x = computeTarget(i);
-    writeInteger(x);
-    writeString(" = \n");
-    factors = factorize(x, verbose);
-    factors = sortList(factors);
-    showList(factors);
-    writeString("check: product = ");
-    y = evalList(factors);
-    writeInteger(y);
-    writeString("\n");
-    showBar();
-    i = i+ 1;
-  }
-}
-
-//--------------------------------------------------------------
-
-void tests(Boolean verbose) {
-  writeString("\nTests\n");
-  writeString("=====\n\n");
-  testComputeTarget();
-  testCalcSmallPrimes();
-  testSmallPrimeFactor();
-  testPowerMod();
-  testGCD();
-  testIsComposite();
-  testProvePrime();
-  testFindFactor();
-  testFactorize(verbose);
-}
-
-//--------------------------------------------------------------
-
-void main() {
-  //tests(true);
-  run(true);
-}

heap.c

@@ -1,33 +0,0 @@
-//
-// Created by Elias Bennour on 28.01.24.
-//
-
-#ifndef HEAP
-#define HEAP
-
-#include <stdlib.h>
-#include <stdio.h>
-
-int maxHeapSize = 8192 * 1024;
-
-void* my_malloc(size_t size) {
-    static size_t total_allocated = 0;
-
-    if (total_allocated + size > maxHeapSize) {
-        perror("Memory limit exceeded\n");
-        exit(1);
-    }
-
-    void* ptr = malloc(size);
-    if (ptr != NULL) {
-        total_allocated += size;
-    }
-
-    return ptr;
-}
-
-void initHeap(int size) {
-    maxHeapSize = size;
-}
-
-#endif //NINJA_NJVM_H

heap.h

@@ -1,12 +0,0 @@
-//
-// Created by Elias Bennour on 28.01.24.
-//
-
-#ifndef NINJA_HEAP_H
-#define NINJA_HEAP_H
-
-#include <stdlib.h>
-
-void* my_malloc(size_t size);
-
-#endif //NINJA_HEAP_H

instruktion.c

@@ -2,11 +2,8 @@
 #define INSREUKTION
 
 #define IMMEDIATE(x) ((x) & 0x00FFFFFF)
-#define MSB (1 << (8 * sizeof(unsigned int) - 1))
-#define IS_PRIMITIVE(objRef) (((objRef)->size & MSB) == 0)
+
 #define SIGN_EXTEND(i) ((i) & 0x00800000 ? (i) | 0xFF000000 : (i))
-#define GET_ELEMENT_COUNT(objRef) ((objRef)->size & ~MSB)
-#define GET_REFS_PTR(objRef) ((ObjRef *) (objRef)-> data)
 
 #define HALT 0
 #define PUSHC 1
@@ -37,18 +34,5 @@
 #define CALL 26
 #define RET 27
 #define DROP 28
-#define PUSHR 29
-#define POPR 30
-#define DUP 31
-#define NEW 32
-#define GETF 33
-#define PUTF 34
-#define NEWA 35
-#define GETFA 36
-#define PUTFA 37
-#define GETSZ 38
-#define PUSHN 39
-#define REFEQ 40
-#define REFNE 41
 
 #endif /* ifndef INSREUKTION */

matinv.asm

@@ -1,778 +0,0 @@
-//
-// version
-//
-	.vers	8
-
-//
-// execution framework
-//
-__start:
-	call	_main
-	call	_exit
-__stop:
-	jmp	__stop
-
-//
-// Integer readInteger()
-//
-_readInteger:
-	asf	0
-	rdint
-	popr
-	rsf
-	ret
-
-//
-// void writeInteger(Integer)
-//
-_writeInteger:
-	asf	0
-	pushl	-3
-	wrint
-	rsf
-	ret
-
-//
-// Character readCharacter()
-//
-_readCharacter:
-	asf	0
-	rdchr
-	popr
-	rsf
-	ret
-
-//
-// void writeCharacter(Character)
-//
-_writeCharacter:
-	asf	0
-	pushl	-3
-	wrchr
-	rsf
-	ret
-
-//
-// Integer char2int(Character)
-//
-_char2int:
-	asf	0
-	pushl	-3
-	popr
-	rsf
-	ret
-
-//
-// Character int2char(Integer)
-//
-_int2char:
-	asf	0
-	pushl	-3
-	popr
-	rsf
-	ret
-
-//
-// void exit()
-//
-_exit:
-	asf	0
-	halt
-	rsf
-	ret
-
-//
-// void writeString(String)
-//
-_writeString:
-	asf	1
-	pushc	0
-	popl	0
-	jmp	_writeString_L2
-_writeString_L1:
-	pushl	-3
-	pushl	0
-	getfa
-	call	_writeCharacter
-	drop	1
-	pushl	0
-	pushc	1
-	add
-	popl	0
-_writeString_L2:
-	pushl	0
-	pushl	-3
-	getsz
-	lt
-	brt	_writeString_L1
-	rsf
-	ret
-
-//
-// Integer gcd(Integer, Integer)
-//
-_gcd:
-	asf	1
-	jmp	__2
-__1:
-	pushl	-4
-	pushl	-3
-	mod
-	popl	0
-	pushl	-3
-	popl	-4
-	pushl	0
-	popl	-3
-__2:
-	pushl	-3
-	pushc	0
-	ne
-	brt	__1
-__3:
-	pushl	-4
-	popr
-	jmp	__0
-__0:
-	rsf
-	ret
-
-//
-// record { Integer num; Integer den; } newFraction(Integer, Integer)
-//
-_newFraction:
-	asf	4
-	pushl	-4
-	pushc	0
-	lt
-	brf	__5
-	pushc	0
-	pushl	-4
-	sub
-	popl	0
-	jmp	__6
-__5:
-	pushl	-4
-	popl	0
-__6:
-	pushl	-3
-	pushc	0
-	lt
-	brf	__7
-	pushc	0
-	pushl	-3
-	sub
-	popl	1
-	jmp	__8
-__7:
-	pushl	-3
-	popl	1
-__8:
-	pushl	0
-	pushl	1
-	call	_gcd
-	drop	2
-	pushr
-	popl	2
-	new	2
-	popl	3
-	pushl	-4
-	pushc	0
-	lt
-	pushl	-3
-	pushc	0
-	lt
-	ne
-	brf	__9
-	pushl	3
-	pushc	0
-	pushl	0
-	sub
-	pushl	2
-	div
-	putf	0
-	jmp	__10
-__9:
-	pushl	3
-	pushl	0
-	pushl	2
-	div
-	putf	0
-__10:
-	pushl	3
-	pushl	1
-	pushl	2
-	div
-	putf	1
-	pushl	3
-	popr
-	jmp	__4
-__4:
-	rsf
-	ret
-
-//
-// void writeFraction(record { Integer num; Integer den; })
-//
-_writeFraction:
-	asf	0
-	pushl	-3
-	getf	0
-	call	_writeInteger
-	drop	1
-	pushc	1
-	newa
-	dup
-	pushc	0
-	pushc	47
-	putfa
-	call	_writeString
-	drop	1
-	pushl	-3
-	getf	1
-	call	_writeInteger
-	drop	1
-__11:
-	rsf
-	ret
-
-//
-// record { Integer num; Integer den; } negFraction(record { Integer num; Integer den; })
-//
-_negFraction:
-	asf	0
-	pushc	0
-	pushl	-3
-	getf	0
-	sub
-	pushl	-3
-	getf	1
-	call	_newFraction
-	drop	2
-	pushr
-	popr
-	jmp	__12
-__12:
-	rsf
-	ret
-
-//
-// record { Integer num; Integer den; } addFraction(record { Integer num; Integer den; }, record { Integer num; Integer den; })
-//
-_addFraction:
-	asf	0
-	pushl	-4
-	getf	0
-	pushl	-3
-	getf	1
-	mul
-	pushl	-3
-	getf	0
-	pushl	-4
-	getf	1
-	mul
-	add
-	pushl	-4
-	getf	1
-	pushl	-3
-	getf	1
-	mul
-	call	_newFraction
-	drop	2
-	pushr
-	popr
-	jmp	__13
-__13:
-	rsf
-	ret
-
-//
-// record { Integer num; Integer den; } subFraction(record { Integer num; Integer den; }, record { Integer num; Integer den; })
-//
-_subFraction:
-	asf	0
-	pushl	-4
-	getf	0
-	pushl	-3
-	getf	1
-	mul
-	pushl	-3
-	getf	0
-	pushl	-4
-	getf	1
-	mul
-	sub
-	pushl	-4
-	getf	1
-	pushl	-3
-	getf	1
-	mul
-	call	_newFraction
-	drop	2
-	pushr
-	popr
-	jmp	__14
-__14:
-	rsf
-	ret
-
-//
-// record { Integer num; Integer den; } mulFraction(record { Integer num; Integer den; }, record { Integer num; Integer den; })
-//
-_mulFraction:
-	asf	0
-	pushl	-4
-	getf	0
-	pushl	-3
-	getf	0
-	mul
-	pushl	-4
-	getf	1
-	pushl	-3
-	getf	1
-	mul
-	call	_newFraction
-	drop	2
-	pushr
-	popr
-	jmp	__15
-__15:
-	rsf
-	ret
-
-//
-// record { Integer num; Integer den; } divFraction(record { Integer num; Integer den; }, record { Integer num; Integer den; })
-//
-_divFraction:
-	asf	0
-	pushl	-4
-	getf	0
-	pushl	-3
-	getf	1
-	mul
-	pushl	-4
-	getf	1
-	pushl	-3
-	getf	0
-	mul
-	call	_newFraction
-	drop	2
-	pushr
-	popr
-	jmp	__16
-__16:
-	rsf
-	ret
-
-//
-// Fraction[][] newMatrix(record { Integer num; Integer den; }, record { Integer num; Integer den; }, record { Integer num; Integer den; }, record { Integer num; Integer den; })
-//
-_newMatrix:
-	asf	1
-	pushc	2
-	newa
-	popl	0
-	pushl	0
-	pushc	0
-	pushc	2
-	newa
-	putfa
-	pushl	0
-	pushc	1
-	pushc	2
-	newa
-	putfa
-	pushl	0
-	pushc	0
-	getfa
-	pushc	0
-	pushl	-6
-	putfa
-	pushl	0
-	pushc	0
-	getfa
-	pushc	1
-	pushl	-5
-	putfa
-	pushl	0
-	pushc	1
-	getfa
-	pushc	0
-	pushl	-4
-	putfa
-	pushl	0
-	pushc	1
-	getfa
-	pushc	1
-	pushl	-3
-	putfa
-	pushl	0
-	popr
-	jmp	__17
-__17:
-	rsf
-	ret
-
-//
-// void writeMatrix(Fraction[][])
-//
-_writeMatrix:
-	asf	2
-	pushc	0
-	popl	0
-	jmp	__20
-__19:
-	pushc	0
-	popl	1
-	jmp	__23
-__22:
-	pushl	-3
-	pushl	0
-	getfa
-	pushl	1
-	getfa
-	call	_writeFraction
-	drop	1
-	pushc	2
-	newa
-	dup
-	pushc	0
-	pushc	32
-	putfa
-	dup
-	pushc	1
-	pushc	32
-	putfa
-	call	_writeString
-	drop	1
-	pushl	1
-	pushc	1
-	add
-	popl	1
-__23:
-	pushl	1
-	pushl	-3
-	pushl	0
-	getfa
-	getsz
-	lt
-	brt	__22
-__24:
-	pushc	1
-	newa
-	dup
-	pushc	0
-	pushc	10
-	putfa
-	call	_writeString
-	drop	1
-	pushl	0
-	pushc	1
-	add
-	popl	0
-__20:
-	pushl	0
-	pushl	-3
-	getsz
-	lt
-	brt	__19
-__21:
-	pushc	1
-	newa
-	dup
-	pushc	0
-	pushc	10
-	putfa
-	call	_writeString
-	drop	1
-__18:
-	rsf
-	ret
-
-//
-// Fraction[][] invertMatrix(Fraction[][])
-//
-_invertMatrix:
-	asf	1
-	pushl	-3
-	pushc	0
-	getfa
-	pushc	0
-	getfa
-	pushl	-3
-	pushc	1
-	getfa
-	pushc	1
-	getfa
-	call	_mulFraction
-	drop	2
-	pushr
-	pushl	-3
-	pushc	0
-	getfa
-	pushc	1
-	getfa
-	pushl	-3
-	pushc	1
-	getfa
-	pushc	0
-	getfa
-	call	_mulFraction
-	drop	2
-	pushr
-	call	_subFraction
-	drop	2
-	pushr
-	popl	0
-	pushl	0
-	getf	0
-	pushc	0
-	eq
-	brf	__26
-	pushc	33
-	newa
-	dup
-	pushc	0
-	pushc	101
-	putfa
-	dup
-	pushc	1
-	pushc	114
-	putfa
-	dup
-	pushc	2
-	pushc	114
-	putfa
-	dup
-	pushc	3
-	pushc	111
-	putfa
-	dup
-	pushc	4
-	pushc	114
-	putfa
-	dup
-	pushc	5
-	pushc	58
-	putfa
-	dup
-	pushc	6
-	pushc	32
-	putfa
-	dup
-	pushc	7
-	pushc	109
-	putfa
-	dup
-	pushc	8
-	pushc	97
-	putfa
-	dup
-	pushc	9
-	pushc	116
-	putfa
-	dup
-	pushc	10
-	pushc	114
-	putfa
-	dup
-	pushc	11
-	pushc	105
-	putfa
-	dup
-	pushc	12
-	pushc	120
-	putfa
-	dup
-	pushc	13
-	pushc	32
-	putfa
-	dup
-	pushc	14
-	pushc	99
-	putfa
-	dup
-	pushc	15
-	pushc	97
-	putfa
-	dup
-	pushc	16
-	pushc	110
-	putfa
-	dup
-	pushc	17
-	pushc	110
-	putfa
-	dup
-	pushc	18
-	pushc	111
-	putfa
-	dup
-	pushc	19
-	pushc	116
-	putfa
-	dup
-	pushc	20
-	pushc	32
-	putfa
-	dup
-	pushc	21
-	pushc	98
-	putfa
-	dup
-	pushc	22
-	pushc	101
-	putfa
-	dup
-	pushc	23
-	pushc	32
-	putfa
-	dup
-	pushc	24
-	pushc	105
-	putfa
-	dup
-	pushc	25
-	pushc	110
-	putfa
-	dup
-	pushc	26
-	pushc	118
-	putfa
-	dup
-	pushc	27
-	pushc	101
-	putfa
-	dup
-	pushc	28
-	pushc	114
-	putfa
-	dup
-	pushc	29
-	pushc	116
-	putfa
-	dup
-	pushc	30
-	pushc	101
-	putfa
-	dup
-	pushc	31
-	pushc	100
-	putfa
-	dup
-	pushc	32
-	pushc	10
-	putfa
-	call	_writeString
-	drop	1
-	call	_exit
-__26:
-	pushl	-3
-	pushc	1
-	getfa
-	pushc	1
-	getfa
-	pushl	0
-	call	_divFraction
-	drop	2
-	pushr
-	pushl	-3
-	pushc	0
-	getfa
-	pushc	1
-	getfa
-	call	_negFraction
-	drop	1
-	pushr
-	pushl	0
-	call	_divFraction
-	drop	2
-	pushr
-	pushl	-3
-	pushc	1
-	getfa
-	pushc	0
-	getfa
-	call	_negFraction
-	drop	1
-	pushr
-	pushl	0
-	call	_divFraction
-	drop	2
-	pushr
-	pushl	-3
-	pushc	0
-	getfa
-	pushc	0
-	getfa
-	pushl	0
-	call	_divFraction
-	drop	2
-	pushr
-	call	_newMatrix
-	drop	4
-	pushr
-	popr
-	jmp	__25
-__25:
-	rsf
-	ret
-
-//
-// void main()
-//
-_main:
-	asf	3
-	pushc	1
-	newa
-	dup
-	pushc	0
-	pushc	10
-	putfa
-	call	_writeString
-	drop	1
-	pushc	7
-	pushc	1
-	call	_newFraction
-	drop	2
-	pushr
-	pushc	4
-	pushc	1
-	call	_newFraction
-	drop	2
-	pushr
-	pushc	6
-	pushc	1
-	call	_newFraction
-	drop	2
-	pushr
-	pushc	5
-	pushc	1
-	call	_newFraction
-	drop	2
-	pushr
-	call	_newMatrix
-	drop	4
-	pushr
-	popl	0
-	pushl	0
-	call	_writeMatrix
-	drop	1
-	pushl	0
-	call	_invertMatrix
-	drop	1
-	pushr
-	popl	1
-	pushl	1
-	call	_writeMatrix
-	drop	1
-	pushl	1
-	call	_invertMatrix
-	drop	1
-	pushr
-	popl	2
-	pushl	2
-	call	_writeMatrix
-	drop	1
-__27:
-	rsf
-	ret

matinv.nj

@@ -1,146 +0,0 @@
-//
-// matinv.nj -- invert 2x2 matrices of fractions
-//
-
-//--------------------------------------------------------------
-
-// greatest common divisor
-
-Integer gcd(Integer a, Integer b) {
-  local Integer h;
-  while (b != 0) {
-    h = a % b;
-    a = b;
-    b = h;
-  }
-  return a;
-}
-
-//--------------------------------------------------------------
-
-// fractions
-
-type Fraction = record {
-  Integer num;
-  Integer den;
-};
-
-Fraction newFraction(Integer num, Integer den) {
-  local Integer n;
-  local Integer d;
-  local Integer g;
-  local Fraction r;
-  if (num < 0) {
-    n = -num;
-  } else {
-    n = num;
-  }
-  if (den < 0) {
-    d = -den;
-  } else {
-    d = den;
-  }
-  g = gcd(n, d);
-  r = new(Fraction);
-  if ((num < 0) != (den < 0)) {
-    r.num = -n / g;
-  } else {
-    r.num = n / g;
-  }
-  r.den = d / g;
-  return r;
-}
-
-void writeFraction(Fraction f) {
-  writeInteger(f.num);
-  writeString("/");
-  writeInteger(f.den);
-}
-
-Fraction negFraction(Fraction f) {
-  return newFraction(-f.num, f.den);
-}
-
-Fraction addFraction(Fraction f1, Fraction f2) {
-  return newFraction(f1.num * f2.den + f2.num * f1.den, f1.den * f2.den);
-}
-
-Fraction subFraction(Fraction f1, Fraction f2) {
-  return newFraction(f1.num * f2.den - f2.num * f1.den, f1.den * f2.den);
-}
-
-Fraction mulFraction(Fraction f1, Fraction f2) {
-  return newFraction(f1.num * f2.num, f1.den * f2.den);
-}
-
-Fraction divFraction(Fraction f1, Fraction f2) {
-  return newFraction(f1.num * f2.den, f1.den * f2.num);
-}
-
-//--------------------------------------------------------------
-
-// 2x2 matrices of fractions
-
-type Matrix = Fraction[][];
-
-Matrix newMatrix(Fraction a00, Fraction a01,
-                 Fraction a10, Fraction a11) {
-  local Matrix m;
-  m = new(Fraction[2][]);
-  m[0] = new(Fraction[2]);
-  m[1] = new(Fraction[2]);
-  m[0][0] = a00;
-  m[0][1] = a01;
-  m[1][0] = a10;
-  m[1][1] = a11;
-  return m;
-}
-
-void writeMatrix(Matrix m) {
-  local Integer i;
-  local Integer j;
-  i = 0;
-  while (i < sizeof(m)) {
-    j = 0;
-    while (j < sizeof(m[i])) {
-      writeFraction(m[i][j]);
-      writeString("  ");
-      j = j + 1;
-    }
-    writeString("\n");
-    i = i + 1;
-  }
-  writeString("\n");
-}
-
-Matrix invertMatrix(Matrix m) {
-  local Fraction det;
-  det = subFraction(mulFraction(m[0][0], m[1][1]),
-                    mulFraction(m[0][1], m[1][0]));
-  if (det.num == 0) {
-    writeString("error: matrix cannot be inverted\n");
-    exit();
-  }
-  return newMatrix(
-    divFraction(m[1][1], det), divFraction(negFraction(m[0][1]), det),
-    divFraction(negFraction(m[1][0]), det), divFraction(m[0][0], det)
-  );
-}
-
-//--------------------------------------------------------------
-
-void main() {
-  local Matrix matrix;
-  local Matrix result1;
-  local Matrix result2;
-  writeString("\n");
-  matrix = newMatrix(
-    newFraction(7, 1), newFraction(4, 1),
-    newFraction(6, 1), newFraction(5, 1)
-  );
-  writeMatrix(matrix);
-  result1 = invertMatrix(matrix);
-  writeMatrix(result1);
-  result2 = invertMatrix(result1);
-  writeMatrix(result2);
-}

njvm.c

@@ -1,340 +1,303 @@
-#ifndef NJVM
-#define NJVM
-
 #include <stdio.h>
-#include <stdlib.h>
 #include <string.h>
+#include "consts.c"
 #include "instruktion.c"
+#include "code.c"
 #include "stack.c"
 #include "program.c"
 #include "codeReader.c"
-#include "debugMenu.c"
-#include "bigint.h"
-#include "record.c"
-#include "GC.c"
-#include "heap.c"
-
-// Debug
-int debug = 0;
+#include "SDA.c"
 
 // Program
-struct program program;
+struct program *program;
 
-unsigned fp;
+// SDA
+int fp;
+int debug = 0;
 
 void version(void) {
-    printf("Ninja Virtual Machine version %i (compiled %s, %s)\n", 0, __DATE__, __TIME__);
+    printf("Ninja Virtual Machine version %i (compiled %s, %s)\n", VERSION, __DATE__, __TIME__);
 }
 
 void help(void) {
     printf("Usage: ./njvm [options] <code file>\n\t--debug\tstart virtual machine in debug mode\n\t--version\tshow version and exit\n\t--help\t\tshow this help and exit\n");
 }
 
-void execute(struct program program) {
-    int bp = -1;
-    int i;
+void execute(struct program *program, struct sda *sda) {
+    struct stack stack;
+    stack.size = 1000;
+    stack.currentFrame = 0;
+    struct stack callStack;
+    callStack.size = 1000;
+    callStack.currentFrame = 0;
+
+    for (int i = 0; i < stack.size; ++i) {
+        struct stackFrame *frame = malloc(sizeof(struct stackFrame));
+        frame->fp = malloc(sizeof(int) * stack.size);
+        frame->sp = malloc(sizeof(int) * stack.size);
+        frame->bp = NULL;
+        stack.frames[i] = frame;
+    }
+
+    for (int i = 0; i < callStack.size; ++i) {
+        struct stackFrame *frame = malloc(sizeof(struct stackFrame));
+        frame->fp = malloc(sizeof(int) * stack.size);
+        frame->sp = malloc(sizeof(int) * stack.size);
+        frame->bp = NULL;
+        callStack.frames[i] = frame;
+    }
+
+    struct stackFrame *currentFrame = NULL;
+    //struct stackFrame *currentCallFrame = NULL;
+    unsigned int tmp;
+    int intInput;
     char charInput;
-    StackSlot tempSlot;
-    ObjRef tempObj;
-    ObjRef tempObj2;
-    int tempInt;
-    for (i = 0; i < *program.size; ++i) {
-        if (debug == 1 || bp == i) debugMenu(fp, stack, &debug, i, &bp);
-        if(debug == 1) printf("(%i)",i);
-        switch (program.program[i] >> 24) {
+
+    for (int i = 0; i < program->size; ++i) {
+        unsigned int instruction = program->program[i];
+        if (i >= program->size) {
+            printf("Error: Jump out of program memory\n");
+            goto end;
+        }
+
+        switch (instruction >> 24) {
             case HALT:
-                if (debug == 1) printf("halt\n");
                 goto end;
             case PUSHC:
-                if (debug == 1) printf("pushc: %i\n", IMMEDIATE(program.program[i]));
-                bigFromInt(SIGN_EXTEND(IMMEDIATE(program.program[i])));
-                push(stack, stackSlotWithObjRef(bip.res));
+                if (debug == 1) printf("PUSHC %d\n", SIGN_EXTEND(IMMEDIATE(instruction)));
+                push(&stack, SIGN_EXTEND(IMMEDIATE(instruction)));
                 break;
             case ADD:
-                if (debug == 1) printf("add: %i + %i\n", peek(stack, 2), peek(stack, 1));
-                bip.op2 = pop(stack).u.objRef;
-                bip.op1 = pop(stack).u.objRef;
-                bigAdd();
-                push(stack, stackSlotWithObjRef(bip.res));
+                if (debug == 1) printf("ADD\n");
+                push(&stack, pop(&stack) + pop(&stack));
                 break;
             case SUB:
-                if (debug == 1) printf("sub: %i - %i\n", peek(stack, 2), peek(stack, 1));
-                bip.op2 = pop(stack).u.objRef;
-                bip.op1 = pop(stack).u.objRef;
-                bigSub();
-                push(stack, stackSlotWithObjRef(bip.res));
+                tmp = pop(&stack);
+                if (debug == 1) printf("SUB\n");
+                if (debug == 1) printf("tmp: %d\n", tmp);
+                push(&stack, pop(&stack) - tmp);
                 break;
             case MUL:
-                if (debug == 1) printf("mul: %i * %i\n", peek(stack, 2), peek(stack, 1));
-                bip.op2 = pop(stack).u.objRef;
-                bip.op1 = pop(stack).u.objRef;
-                bigMul();
-                push(stack, stackSlotWithObjRef(bip.res));
+                if (debug == 1) printf("MUL\n");
+                push(&stack, pop(&stack) * pop(&stack));
                 break;
             case DIV:
-                if (debug == 1) printf("div: %i / %i\n", peek(stack, 2), peek(stack, 1));
-                bip.op2 = pop(stack).u.objRef;
-                bip.op1 = pop(stack).u.objRef;
-                bigDiv();
-                push(stack, stackSlotWithObjRef(bip.res));
+                tmp = pop(&stack);
+                if (debug == 1) printf("DIV\n");
+                if (debug == 1) printf("tmp: %d\n", tmp);
+                push(&stack, pop(&stack) / tmp);
                 break;
             case MOD:
-                if (debug == 1) printf("mod: %i %% %i\n", peek(stack, 2), peek(stack, 1));
-                bip.op2 = pop(stack).u.objRef;
-                bip.op1 = pop(stack).u.objRef;
-                bigDiv();
-                push(stack, stackSlotWithObjRef(bip.rem));
+                tmp = pop(&stack);
+                if (debug == 1) printf("MOD\n");
+                if (debug == 1) printf("tmp: %d\n", tmp);
+                push(&stack, pop(&stack) % tmp);
                 break;
             case RDINT:
-                if (debug == 1) printf("rdint\n");
-                bigRead(stdin);
-                push(stack, stackSlotWithObjRef(bip.res));
-                if (debug == 1) printf("pushed %i\n", peek(stack, 1));
+                scanf("%i", &intInput);
+                if (debug == 1) printf("RDINT %d\n", intInput);
+                push(&stack, intInput);
                 break;
             case WRINT:
-                if (debug == 1) printf("wrint: %i\n", peek(stack, 1));
-                bip.op1 = pop(stack).u.objRef;
-                bigPrint(stdout);
+                if (debug == 1) printf("WRINT\n");
+                printf("%i", pop(&stack));
                 break;
             case RDCHR:
-                if (debug == 1) printf("rdchr\n");
                 scanf("%c", &charInput);
-                bigFromInt(charInput);
-                push(stack, stackSlotWithObjRef(bip.res));
-                if (debug == 1) printf("pushed %c\n", charInput);
+                if (debug == 1) printf("RDCHR %c\n", charInput);
+                push(&stack, charInput);
                 break;
             case WRCHR:
-                if (debug == 1) printf("wrchr: %c\n", peek(stack, 1));
-                bip.op1 = pop(stack).u.objRef;
-                printf("%c", bigToInt());
+                if (debug == 1) printf("WRCHR\n");
+                printf("%c", pop(&stack));
                 break;
             case PUSHG:
-                if (debug == 1) printf("pushg: %i\n", SIGN_EXTEND(IMMEDIATE(program.program[i])));
-                push(stack, stackSlotWithObjRef(getSDA(SIGN_EXTEND(IMMEDIATE(program.program[i])), sda)));
+                if (debug == 1) printf("PUSHG %d\n", SIGN_EXTEND(IMMEDIATE(instruction)));
+                currentFrame = stack.frames[stack.currentFrame];
+                currentFrame->bp = currentFrame->sp;
+
+                *currentFrame->sp++ = getSDA(SIGN_EXTEND(IMMEDIATE(instruction)), sda);
                 break;
             case POPG:
-                if (debug == 1) printf("popg: %i\n", SIGN_EXTEND(IMMEDIATE(program.program[i])));
-                setSDA(SIGN_EXTEND(IMMEDIATE(program.program[i])), pop(stack).u.objRef, sda);
+                if (debug == 1) printf("POPG %d\n", SIGN_EXTEND(IMMEDIATE(instruction)));
+                currentFrame = stack.frames[stack.currentFrame];
+                currentFrame->bp = currentFrame->sp;
+
+                setSDA(SIGN_EXTEND(IMMEDIATE(instruction)), pop(&stack), sda);
                 break;
             case ASF:
-                if (debug == 1) printf("asf: %i\n", SIGN_EXTEND(IMMEDIATE(program.program[i])));
-                push(stack, stackSlotWitchNumber(fp));
-                fp = *stack.current;
-                *stack.current = *stack.current + SIGN_EXTEND(IMMEDIATE(program.program[i]));
+                if (debug == 1) printf("ASF %d\n", SIGN_EXTEND(IMMEDIATE(instruction)));
+                currentFrame = stack.frames[stack.currentFrame];
+                push(&stack, *currentFrame->sp);
+                *currentFrame->sp = stack.currentFrame;
+                currentFrame->bp = currentFrame->sp;
+
+                stack.currentFrame += SIGN_EXTEND(IMMEDIATE(instruction));
                 break;
             case RSF:
-                if (debug == 1) printf("rsf: %i\n", SIGN_EXTEND(IMMEDIATE(program.program[i])));
-                *stack.current = fp;
-                if (debug == 1) printf("pop: %i\n", peek(stack, 1));
-                tempSlot = pop(stack);
-                fp = tempSlot.u.number;
-                break;
-            case POPL:
-                if (debug == 1) printf("popl: %i\n", SIGN_EXTEND(IMMEDIATE(program.program[i])));
-                stack.stack[fp + SIGN_EXTEND(IMMEDIATE(program.program[i]))] = pop(stack);
+                if (debug == 1) printf("RSF\n");
+                stack.currentFrame = pop(&stack);
+                currentFrame = stack.frames[stack.currentFrame];
+                currentFrame->bp = NULL;
                 break;
             case PUSHL:
-                if (debug == 1) printf("pushl: %i\n", SIGN_EXTEND(IMMEDIATE(program.program[i])));
-                push(stack, stack.stack[fp + SIGN_EXTEND(IMMEDIATE(program.program[i]))]);
+                printf("PUSHL %d\n", SIGN_EXTEND(IMMEDIATE(instruction)));
+                currentFrame = stack.frames[stack.currentFrame];
+                currentFrame->bp = currentFrame->sp;
+                int x = SIGN_EXTEND(IMMEDIATE(instruction));
+                push(&stack, currentFrame->fp[x]);
                 break;
-            case NE:
-                if (debug == 1) printf("ne: %i != %i\n", peek(stack, 2), peek(stack, 1));
-                bip.op2 = pop(stack).u.objRef;
-                bip.op1 = pop(stack).u.objRef;
-                bigFromInt(bigCmp() != 0);
-                push(stack, stackSlotWithObjRef(bip.res));
+            case POPL:
+                if (debug == 1) printf("POPL %d\n", SIGN_EXTEND(IMMEDIATE(instruction)));
+                currentFrame = stack.frames[stack.currentFrame];
+                currentFrame->fp[SIGN_EXTEND(IMMEDIATE(instruction))] = pop(&stack);
                 break;
             case EQ:
-                if (debug == 1) printf("eq: %i == %i\n", peek(stack, 2), peek(stack, 1));
-                bip.op2 = pop(stack).u.objRef;
-                bip.op1 = pop(stack).u.objRef;
-                bigFromInt(bigCmp() == 0);
-                push(stack, stackSlotWithObjRef(bip.res));
-                break;
-            case LT:
-                if (debug == 1) printf("lt: %i < %i\n", peek(stack, 2), peek(stack, 1));
-                bip.op2 = pop(stack).u.objRef;
-                bip.op1 = pop(stack).u.objRef;
-                bigFromInt(bigCmp() < 0);
-                push(stack, stackSlotWithObjRef(bip.res));
-                break;
-            case LE:
-                if (debug == 1) printf("le: %i <= %i\n", peek(stack, 2), peek(stack, 1));
-                bip.op2 = pop(stack).u.objRef;
-                bip.op1 = pop(stack).u.objRef;
-                bigFromInt(bigCmp() <= 0);
-                push(stack, stackSlotWithObjRef(bip.res));
-                break;
-            case GT:
-                if (debug == 1) printf("gt: %i > %i\n", peek(stack, 2), peek(stack, 1));
-                bip.op2 = pop(stack).u.objRef;
-                bip.op1 = pop(stack).u.objRef;
-                bigFromInt(bigCmp() > 0);
-                push(stack, stackSlotWithObjRef(bip.res));
-                break;
-            case GE:
-                if (debug == 1) printf("ge: %i >= %i\n", peek(stack, 2), peek(stack, 1));
-                bip.op2 = pop(stack).u.objRef;
-                bip.op1 = pop(stack).u.objRef;
-                bigFromInt(bigCmp() >= 0);
-                push(stack, stackSlotWithObjRef(bip.res));
-                break;
-            case BRF:
-                if (debug == 1) printf("brf: %i\n", SIGN_EXTEND(IMMEDIATE(program.program[i])));
-                if (debug == 1) printf("pop: %i\n", peek(stack, 1));
-                bip.op1 = pop(stack).u.objRef;
-                int b = bigToInt();
-                if (b == false) {
-                    i = SIGN_EXTEND(IMMEDIATE(program.program[i])) - 1;
-                    if (debug == 1) printf("new i: %i\n", i);
-                } else if (b != true) {
-                    printf("Error: brf: %i\n", b);
-                    exit(EXIT_FAILURE);
+                if (debug == 1) printf("EQ\n");
+                if (pop(&stack) == pop(&stack)) {
+                    push(&stack, 1);
+                } else {
+                    push(&stack, 0);
                 }
                 break;
-            case BRT:
-                if (debug == 1) printf("brt: %i\n", SIGN_EXTEND(IMMEDIATE(program.program[i])));
-                if (debug == 1) printf("pop: %i\n", peek(stack, 1));
-                bip.op1 = pop(stack).u.objRef;
-                b = bigToInt();
-                if (b == true) {
-                    i = SIGN_EXTEND(IMMEDIATE(program.program[i])) - 1;
-                    if (debug == 1) printf("new i: %i\n", i);
-                } else if (b != false) {
-                    printf("Error: brt: %i\n", b);
-                    exit(EXIT_FAILURE);
+            case NE:
+                if (debug == 1) printf("NE\n");
+                if (pop(&stack) != pop(&stack)) {
+                    push(&stack, 1);
+                } else {
+                    push(&stack, 0);
+                }
+                break;
+            case LT:
+                if (debug == 1) printf("LT\n");
+                tmp = pop(&stack);
+                if (pop(&stack) < tmp) {
+                    push(&stack, 1);
+                } else {
+                    push(&stack, 0);
+                }
+                break;
+            case LE:
+                if (debug == 1) printf("LE\n");
+                tmp = pop(&stack);
+                if (pop(&stack) <= tmp) {
+                    push(&stack, 1);
+                } else {
+                    push(&stack, 0);
+                }
+                break;
+            case GT:
+                if (debug == 1) printf("GT\n");
+                if (debug == 1) printf("peek(1): %d\n", peek(&stack, 1));
+                if (debug == 1) printf("peek(2): %d\n", peek(&stack, 2));
+                if (debug == 1) printf("peek(1) > peek(2): %d\n", peek(&stack, 2) > peek(&stack, 1));
+                tmp = pop(&stack);
+                if (pop(&stack) > tmp) {
+                    push(&stack, 1);
+                } else {
+                    push(&stack, 0);
+                }
+                break;
+            case GE:
+                if (debug == 1) printf("GE\n");
+                tmp = pop(&stack);
+                if (pop(&stack) >= tmp) {
+                    push(&stack, 1);
+                } else {
+                    push(&stack, 0);
                 }
                 break;
             case JMP:
-                if (debug == 1) printf("jmp: %i\n", SIGN_EXTEND(IMMEDIATE(program.program[i])));
-                i = SIGN_EXTEND(IMMEDIATE(program.program[i])) - 1;
-                if (debug == 1) printf("new i: %i\n", i);
+                if (debug == 1) printf("JMP %d\n", SIGN_EXTEND(IMMEDIATE(instruction)));
+                int j = SIGN_EXTEND(IMMEDIATE(program->program[i]));
+                if (debug == 1) printf("JMP %d\n", j);
+                if (j-- >= program->size) {
+                    printf("Error: Jump out of program memory\n");
+                    goto end;
+                }
+                i = j;
+                break;
+            case BRF: // branch on false
+                if (debug == 1) printf("BRF %d\nStack: %d\n", SIGN_EXTEND(IMMEDIATE(instruction)), pop(&stack));
+                if (pop(&stack) == 0) {
+                    int j = SIGN_EXTEND(IMMEDIATE(program->program[i]));
+                    if (j-- >= program->size) {
+                        printf("Error: BRF out of program memory\n");
+                        goto end;
+                    }
+                    i = j;
+                }
+                break;
+            case BRT:
+                if (debug == 1) printf("BRT %d\n", SIGN_EXTEND(IMMEDIATE(instruction)));
+                if (pop(&stack) == 1) {
+                    int j = SIGN_EXTEND(IMMEDIATE(program->program[i]));
+                    if (j-- >= program->size) {
+                        printf("Error: BRT out of program memory\n");
+                        goto end;
+                    }
+                    i = j;
+                }
                 break;
             case CALL:
-                if (debug == 1) printf("call: %i\n", SIGN_EXTEND(IMMEDIATE(program.program[i])));
-                push(stack, stackSlotWitchNumber(i));
-                if (debug == 1) printf("push: %i\n", i + 1);
-                i = SIGN_EXTEND(IMMEDIATE(program.program[i])) - 1;
-                if (debug == 1) printf("new i: %i\n", i);
+                tmp = SIGN_EXTEND(IMMEDIATE(program->program[i]));
+                if (j-- >= program->size) {
+                    printf("Error: Call out of program memory\n");
+                    goto end;
+                }
+                push(&callStack, i + 1);
+                i = tmp;
                 break;
             case RET:
-                if (debug == 1) printf("ret\n");
-                if (debug == 1) printf("pop: %i\n", peek(stack, 1));
-                i = getIntValfromStackSlot(pop(stack));
-                if (debug == 1) printf("new i: %i\n", i);
+                if (debug == 1) printf("RET\n");
+                tmp = pop(&callStack);
+                if (tmp-- >= program->size) {
+                    printf("Error: Return out of program memory\n");
+                    goto end;
+                }
+                i = tmp;
                 break;
             case DROP:
-                if (debug == 1) printf("drop\n");
-                *stack.current = *stack.current - SIGN_EXTEND(IMMEDIATE(program.program[i]));
-                break;
-            case DUP:
-                if (debug == 1) printf("dup\n");
-                tempObj = pop(stack).u.objRef;
-                push(stack, stackSlotWithObjRef(tempObj));
-                push(stack, stackSlotWithObjRef(tempObj));
-                break;
-            case POPR:
-                if (debug == 1) printf("popr\n");
-                push(reg, pop(stack));
-                break;
-            case PUSHR:
-                if (debug == 1) printf("pushr\n");
-                push(stack, pop(reg));
-                break;
-            case NEW:
-                if (debug == 1) printf("new\t%i\n", SIGN_EXTEND(IMMEDIATE(program.program[i])));
-                push(stack, stackSlotWithObjRef(newRecord(SIGN_EXTEND(IMMEDIATE(program.program[i])))));
-                break;
-            case GETF:
-                if (debug == 1) printf("getf\n");
-                tempObj = pop(stack).u.objRef;
-                push(stack, stackSlotWithObjRef(getField(tempObj,SIGN_EXTEND(IMMEDIATE(program.program[i])))));
-                break;
-            case PUTF:
-                if (debug == 1) printf("putf\t%i\n", SIGN_EXTEND(IMMEDIATE(program.program[i])));
-                tempObj = pop(stack).u.objRef;
-                tempObj2 = pop(stack).u.objRef;
-                setField(tempObj2, SIGN_EXTEND(IMMEDIATE(program.program[i])),tempObj);
-                break;
-            case NEWA:
-                if(debug == 1) printf("newa\n");
-                bip.op1 = pop(stack).u.objRef;
-                push(stack, stackSlotWithObjRef(newRecord(bigToInt())));
-                break;
-            case GETFA:
-                if(debug == 1) printf("getfa\n");
-                bip.op1 = pop(stack).u.objRef;
-                tempInt = bigToInt();
-                tempObj = pop(stack).u.objRef;
-                push(stack, stackSlotWithObjRef(getField(tempObj,bigToInt())));
-                break;
-            case PUTFA:
-                if (debug == 1) printf("putfa\n");
-                tempObj = pop(stack).u.objRef; // Value
-                tempObj2 = pop(stack).u.objRef; // Index
-                bip.op1 = tempObj2;
-                tempInt = bigToInt();
-                setField(pop(stack).u.objRef, tempInt,tempObj);
-                break;
-            case GETSZ:
-                if (debug == 1) printf("getsz\n");
-                tempObj = pop(stack).u.objRef;
-                if(IS_PRIMITIVE(tempObj))  bigFromInt(-1);
-                else bigFromInt(GET_ELEMENT_COUNT(tempObj));
-                push(stack, stackSlotWithObjRef(bip.res));
-                break;
-            case PUSHN:
-                if (debug == 1) printf("pushn\n");
-                push(stack, stackSlotWithObjRef(NULL));
-                break;
-            case REFEQ:
-                if (debug == 1) printf("refeq\n");
-                if(pop(stack).u.objRef == pop(stack).u.objRef) bigFromInt(true);
-                else bigFromInt(false);
-                push(stack, stackSlotWithObjRef(bip.res));
-                break;
-            case REFNE:
-                if (debug == 1) printf("refeq\n");
-                if(pop(stack).u.objRef != pop(stack).u.objRef) bigFromInt(true);
-                else bigFromInt(false);
-                push(stack, stackSlotWithObjRef(bip.res));
+                tmp = SIGN_EXTEND(IMMEDIATE(instruction));
+                if (debug == 1) printf("DROP %d\n", tmp);
+                for (int b = 0; b < tmp; ++b) {
+                    pop(&stack);
+                }
                 break;
         }
     }
+
     end:
     return;
 }
 
+// run prog2.bin
 void tests(void) {
+    printf("Test started\n");
+    /*struct sda *sda = malloc(sizeof(struct sda));
+    unsigned int s[1000];
+    sda->size = 1000;
+    sda->sda = s;
+    fromFile("prog2.bin", program);
+    execute(program, (struct sda *) &sda);*/
+    printf("Test finished\n");
 }
 
 int main(int argc, char *argv[]) {
     // Initialize the Stack
+    struct stack stack;
     int size = SIZE;
-    int current = 0;
-    stack.size = &size;
-    stack.current = &current;
-    stack.stack = malloc(size * 1024);
-    if (stack.stack == NULL) {
-        perror("malloc");
-    }
-
-    // Initialize the registery
-    int rSize = 100000;
-    int rCurrent = 0;
-    StackSlot r[100000];
-    reg.size = &rSize;
-    reg.current = &rCurrent;
-    reg.stack = r;
+    stack.size = size;
+    stack.currentFrame = 0;
 
     // Initialize ProgrammSpeicher
-    int psize = 100000;
-    int saveProgram = 0;
-    unsigned int p[100000];
-    program.size = &psize;
-    program.program = p;
-    program.saveProgram = &saveProgram;
+    int psize = SIZE;
+    unsigned int p[1000];
+    program = malloc(sizeof(struct program));
+    program->size = psize;
+    program->program = p;
 
+    // Initialize runtime variables
     int run = 0;
     int sizeSDA;
 
@@ -348,14 +311,6 @@ int main(int argc, char *argv[]) {
             } else if (strcmp(argv[i], "--help") == 0) {
                 help();
                 return 0;
-            } else if (strcmp(argv[i], "--stack") == 0) {
-                i++;
-                // TODO: implement stack size
-            } else if (strcmp(argv[i], "--heap") == 0) {
-                i++;
-                initHeap(atoi(argv[i]) * 1024);
-            } else if (strcmp(argv[i], "--gcpurge") == 0) {
-                // TODO: implement gcpurge
             } else {
                 sizeSDA = fromFile(argv[i], program);
                 run = 1;
@@ -363,22 +318,28 @@ int main(int argc, char *argv[]) {
         }
     }
 
+    /*
+     * Debug mode
+     */
     if (debug) {
         tests();
     }
 
+    /*
+     * Run program
+     */
     if (run) {
         printf("Ninja Virtual Machine started\n");
-        ObjRef s[sizeSDA];
-        sda.size = &sizeSDA;
-        sda.sda = s;
+        struct sda *sda = malloc(sizeof(struct sda));
+        unsigned int s[sizeSDA];
+        sda->size = sizeSDA;
+        sda->sda = s;
         if (debug == 1) printProgram(program);
-        execute(program);
+        execute(program, (struct sda *) &sda);
         printf("Ninja Virtual Machine stopped\n");
     } else {
         printf("Error: no code file specified\n");
         return 1;
     }
+    return 0;
 }
-
-#endif /* ifndef NJVM */

objref.c

@@ -1,12 +0,0 @@
-#ifndef OBJREF
-#define OBJREF
-
-#include <stdbool.h>
-
-typedef struct ObjRef{
-    unsigned int size;
-    unsigned char data[1];
-} *ObjRef;
-
-#endif /* ifndef OBJREF
-#define OBJREF */

program.c

@@ -9,23 +9,21 @@
 #include <stdio.h>
 
 struct program {
-    int *size;
     unsigned int *program;
-    int *saveProgram;
+    int size;
 };
 
-void copyToProgram(const unsigned int codeToCopy[], int size, struct program program) {
+void copyToProgram(const unsigned int codeToCopy[], int size, struct program *program) {
     for (int i = 0; i < size; ++i) {
-        program.program[i] = codeToCopy[i];
+        program->program[i] = codeToCopy[i];
     }
-    *program.size = size;
-    *program.saveProgram = 1;
+    program->size = size;
 }
 
-void printProgram(struct program program) {
+void printProgram(struct program *program) {
     char c[10];
-    for (int i = 0; i < *program.size; i++) {
-        switch (program.program[i] >> 24) {
+    for (int i = 0; i < program->size; i++) {
+        switch (program->program[i] >> 24) {
             case PUSHC:
                 strcpy(c, "pushc");
                 break;
@@ -78,55 +76,43 @@ void printProgram(struct program program) {
                 strcpy(c, "popl");
                 break;
             case EQ:
-                strcpy(c, "eq");
+                strcpy(c,"eq");
                 break;
             case NE:
-                strcpy(c, "ne");
+                strcpy(c,"ne");
                 break;
             case LT:
-                strcpy(c, "lt");
-                break;
-            case LE:
-                strcpy(c, "le");
+                strcpy(c,"lt");
                 break;
             case GT:
-                strcpy(c, "gt");
+                strcpy(c,"gt");
                 break;
             case GE:
-                strcpy(c, "ge");
+                strcpy(c,"ge");
                 break;
             case JMP:
-                strcpy(c, "jmp");
+                strcpy(c,"jmp");
                 break;
             case BRF:
                 strcpy(c, "brf");
                 break;
             case BRT:
-                strcpy(c, "brt");
+                strcpy(c,"brt");
                 break;
             case CALL:
-                strcpy(c, "call");
+                strcpy(c,"call");
                 break;
             case RET:
-                strcpy(c, "ret");
+                strcpy(c,"ret");
                 break;
             case DROP:
-                strcpy(c, "drop");
-                break;
-            case PUSHR:
-                strcpy(c, "pushr");
-                break;
-            case POPR:
-                strcpy(c, "popr");
-                break;
-            case DUP:
-                strcpy(c, "dup");
+                strcpy(c,"drop");
                 break;
             default:
                 strcpy(c, "ERROR");
                 break;
         }
-        IMMEDIATE(program.program[i]) ? printf("%03i:\t%s\t%i\n", i, c, SIGN_EXTEND(IMMEDIATE(program.program[i]))) : printf(
+        IMMEDIATE(program->program[i]) ? printf("%03i:\t%s\t%i\n", i, c, SIGN_EXTEND(IMMEDIATE(program->program[i]))) : printf(
                 "%03i:\t%s\n", i, c);
     }
 }

programs/matrix.asm

@@ -1,778 +0,0 @@
-//
-// version
-//
-	.vers	7
-
-//
-// execution framework
-//
-__start:
-	call	_main
-	call	_exit
-__stop:
-	jmp	__stop
-
-//
-// Integer readInteger()
-//
-_readInteger:
-	asf	0
-	rdint
-	popr
-	rsf
-	ret
-
-//
-// void writeInteger(Integer)
-//
-_writeInteger:
-	asf	0
-	pushl	-3
-	wrint
-	rsf
-	ret
-
-//
-// Character readCharacter()
-//
-_readCharacter:
-	asf	0
-	rdchr
-	popr
-	rsf
-	ret
-
-//
-// void writeCharacter(Character)
-//
-_writeCharacter:
-	asf	0
-	pushl	-3
-	wrchr
-	rsf
-	ret
-
-//
-// Integer char2int(Character)
-//
-_char2int:
-	asf	0
-	pushl	-3
-	popr
-	rsf
-	ret
-
-//
-// Character int2char(Integer)
-//
-_int2char:
-	asf	0
-	pushl	-3
-	popr
-	rsf
-	ret
-
-//
-// void exit()
-//
-_exit:
-	asf	0
-	halt
-	rsf
-	ret
-
-//
-// void writeString(String)
-//
-_writeString:
-	asf	1
-	pushc	0
-	popl	0
-	jmp	_writeString_L2
-_writeString_L1:
-	pushl	-3
-	pushl	0
-	getfa
-	call	_writeCharacter
-	drop	1
-	pushl	0
-	pushc	1
-	add
-	popl	0
-_writeString_L2:
-	pushl	0
-	pushl	-3
-	getsz
-	lt
-	brt	_writeString_L1
-	rsf
-	ret
-
-//
-// Integer gcd(Integer, Integer)
-//
-_gcd:
-	asf	1
-	jmp	__2
-__1:
-	pushl	-4
-	pushl	-3
-	mod
-	popl	0
-	pushl	-3
-	popl	-4
-	pushl	0
-	popl	-3
-__2:
-	pushl	-3
-	pushc	0
-	ne
-	brt	__1
-__3:
-	pushl	-4
-	popr
-	jmp	__0
-__0:
-	rsf
-	ret
-
-//
-// record { Integer num; Integer den; } newFraction(Integer, Integer)
-//
-_newFraction:
-	asf	4
-	pushl	-4
-	pushc	0
-	lt
-	brf	__5
-	pushc	0
-	pushl	-4
-	sub
-	popl	0
-	jmp	__6
-__5:
-	pushl	-4
-	popl	0
-__6:
-	pushl	-3
-	pushc	0
-	lt
-	brf	__7
-	pushc	0
-	pushl	-3
-	sub
-	popl	1
-	jmp	__8
-__7:
-	pushl	-3
-	popl	1
-__8:
-	pushl	0
-	pushl	1
-	call	_gcd
-	drop	2
-	pushr
-	popl	2
-	new	2
-	popl	3
-	pushl	-4
-	pushc	0
-	lt
-	pushl	-3
-	pushc	0
-	lt
-	ne
-	brf	__9
-	pushl	3
-	pushc	0
-	pushl	0
-	sub
-	pushl	2
-	div
-	putf	0
-	jmp	__10
-__9:
-	pushl	3
-	pushl	0
-	pushl	2
-	div
-	putf	0
-__10:
-	pushl	3
-	pushl	1
-	pushl	2
-	div
-	putf	1
-	pushl	3
-	popr
-	jmp	__4
-__4:
-	rsf
-	ret
-
-//
-// void writeFraction(record { Integer num; Integer den; })
-//
-_writeFraction:
-	asf	0
-	pushl	-3
-	getf	0
-	call	_writeInteger
-	drop	1
-	pushc	1
-	newa
-	dup
-	pushc	0
-	pushc	47
-	putfa
-	call	_writeString
-	drop	1
-	pushl	-3
-	getf	1
-	call	_writeInteger
-	drop	1
-__11:
-	rsf
-	ret
-
-//
-// record { Integer num; Integer den; } negFraction(record { Integer num; Integer den; })
-//
-_negFraction:
-	asf	0
-	pushc	0
-	pushl	-3
-	getf	0
-	sub
-	pushl	-3
-	getf	1
-	call	_newFraction
-	drop	2
-	pushr
-	popr
-	jmp	__12
-__12:
-	rsf
-	ret
-
-//
-// record { Integer num; Integer den; } addFraction(record { Integer num; Integer den; }, record { Integer num; Integer den; })
-//
-_addFraction:
-	asf	0
-	pushl	-4
-	getf	0
-	pushl	-3
-	getf	1
-	mul
-	pushl	-3
-	getf	0
-	pushl	-4
-	getf	1
-	mul
-	add
-	pushl	-4
-	getf	1
-	pushl	-3
-	getf	1
-	mul
-	call	_newFraction
-	drop	2
-	pushr
-	popr
-	jmp	__13
-__13:
-	rsf
-	ret
-
-//
-// record { Integer num; Integer den; } subFraction(record { Integer num; Integer den; }, record { Integer num; Integer den; })
-//
-_subFraction:
-	asf	0
-	pushl	-4
-	getf	0
-	pushl	-3
-	getf	1
-	mul
-	pushl	-3
-	getf	0
-	pushl	-4
-	getf	1
-	mul
-	sub
-	pushl	-4
-	getf	1
-	pushl	-3
-	getf	1
-	mul
-	call	_newFraction
-	drop	2
-	pushr
-	popr
-	jmp	__14
-__14:
-	rsf
-	ret
-
-//
-// record { Integer num; Integer den; } mulFraction(record { Integer num; Integer den; }, record { Integer num; Integer den; })
-//
-_mulFraction:
-	asf	0
-	pushl	-4
-	getf	0
-	pushl	-3
-	getf	0
-	mul
-	pushl	-4
-	getf	1
-	pushl	-3
-	getf	1
-	mul
-	call	_newFraction
-	drop	2
-	pushr
-	popr
-	jmp	__15
-__15:
-	rsf
-	ret
-
-//
-// record { Integer num; Integer den; } divFraction(record { Integer num; Integer den; }, record { Integer num; Integer den; })
-//
-_divFraction:
-	asf	0
-	pushl	-4
-	getf	0
-	pushl	-3
-	getf	1
-	mul
-	pushl	-4
-	getf	1
-	pushl	-3
-	getf	0
-	mul
-	call	_newFraction
-	drop	2
-	pushr
-	popr
-	jmp	__16
-__16:
-	rsf
-	ret
-
-//
-// Fraction[][] newMatrix(record { Integer num; Integer den; }, record { Integer num; Integer den; }, record { Integer num; Integer den; }, record { Integer num; Integer den; })
-//
-_newMatrix:
-	asf	1
-	pushc	2
-	newa
-	popl	0
-	pushl	0
-	pushc	0
-	pushc	2
-	newa
-	putfa
-	pushl	0
-	pushc	1
-	pushc	2
-	newa
-	putfa
-	pushl	0
-	pushc	0
-	getfa
-	pushc	0
-	pushl	-6
-	putfa
-	pushl	0
-	pushc	0
-	getfa
-	pushc	1
-	pushl	-5
-	putfa
-	pushl	0
-	pushc	1
-	getfa
-	pushc	0
-	pushl	-4
-	putfa
-	pushl	0
-	pushc	1
-	getfa
-	pushc	1
-	pushl	-3
-	putfa
-	pushl	0
-	popr
-	jmp	__17
-__17:
-	rsf
-	ret
-
-//
-// void writeMatrix(Fraction[][])
-//
-_writeMatrix:
-	asf	2
-	pushc	0
-	popl	0
-	jmp	__20
-__19:
-	pushc	0
-	popl	1
-	jmp	__23
-__22:
-	pushl	-3
-	pushl	0
-	getfa
-	pushl	1
-	getfa
-	call	_writeFraction
-	drop	1
-	pushc	2
-	newa
-	dup
-	pushc	0
-	pushc	32
-	putfa
-	dup
-	pushc	1
-	pushc	32
-	putfa
-	call	_writeString
-	drop	1
-	pushl	1
-	pushc	1
-	add
-	popl	1
-__23:
-	pushl	1
-	pushl	-3
-	pushl	0
-	getfa
-	getsz
-	lt
-	brt	__22
-__24:
-	pushc	1
-	newa
-	dup
-	pushc	0
-	pushc	10
-	putfa
-	call	_writeString
-	drop	1
-	pushl	0
-	pushc	1
-	add
-	popl	0
-__20:
-	pushl	0
-	pushl	-3
-	getsz
-	lt
-	brt	__19
-__21:
-	pushc	1
-	newa
-	dup
-	pushc	0
-	pushc	10
-	putfa
-	call	_writeString
-	drop	1
-__18:
-	rsf
-	ret
-
-//
-// Fraction[][] invertMatrix(Fraction[][])
-//
-_invertMatrix:
-	asf	1
-	pushl	-3
-	pushc	0
-	getfa
-	pushc	0
-	getfa
-	pushl	-3
-	pushc	1
-	getfa
-	pushc	1
-	getfa
-	call	_mulFraction
-	drop	2
-	pushr
-	pushl	-3
-	pushc	0
-	getfa
-	pushc	1
-	getfa
-	pushl	-3
-	pushc	1
-	getfa
-	pushc	0
-	getfa
-	call	_mulFraction
-	drop	2
-	pushr
-	call	_subFraction
-	drop	2
-	pushr
-	popl	0
-	pushl	0
-	getf	0
-	pushc	0
-	eq
-	brf	__26
-	pushc	33
-	newa
-	dup
-	pushc	0
-	pushc	101
-	putfa
-	dup
-	pushc	1
-	pushc	114
-	putfa
-	dup
-	pushc	2
-	pushc	114
-	putfa
-	dup
-	pushc	3
-	pushc	111
-	putfa
-	dup
-	pushc	4
-	pushc	114
-	putfa
-	dup
-	pushc	5
-	pushc	58
-	putfa
-	dup
-	pushc	6
-	pushc	32
-	putfa
-	dup
-	pushc	7
-	pushc	109
-	putfa
-	dup
-	pushc	8
-	pushc	97
-	putfa
-	dup
-	pushc	9
-	pushc	116
-	putfa
-	dup
-	pushc	10
-	pushc	114
-	putfa
-	dup
-	pushc	11
-	pushc	105
-	putfa
-	dup
-	pushc	12
-	pushc	120
-	putfa
-	dup
-	pushc	13
-	pushc	32
-	putfa
-	dup
-	pushc	14
-	pushc	99
-	putfa
-	dup
-	pushc	15
-	pushc	97
-	putfa
-	dup
-	pushc	16
-	pushc	110
-	putfa
-	dup
-	pushc	17
-	pushc	110
-	putfa
-	dup
-	pushc	18
-	pushc	111
-	putfa
-	dup
-	pushc	19
-	pushc	116
-	putfa
-	dup
-	pushc	20
-	pushc	32
-	putfa
-	dup
-	pushc	21
-	pushc	98
-	putfa
-	dup
-	pushc	22
-	pushc	101
-	putfa
-	dup
-	pushc	23
-	pushc	32
-	putfa
-	dup
-	pushc	24
-	pushc	105
-	putfa
-	dup
-	pushc	25
-	pushc	110
-	putfa
-	dup
-	pushc	26
-	pushc	118
-	putfa
-	dup
-	pushc	27
-	pushc	101
-	putfa
-	dup
-	pushc	28
-	pushc	114
-	putfa
-	dup
-	pushc	29
-	pushc	116
-	putfa
-	dup
-	pushc	30
-	pushc	101
-	putfa
-	dup
-	pushc	31
-	pushc	100
-	putfa
-	dup
-	pushc	32
-	pushc	10
-	putfa
-	call	_writeString
-	drop	1
-	call	_exit
-__26:
-	pushl	-3
-	pushc	1
-	getfa
-	pushc	1
-	getfa
-	pushl	0
-	call	_divFraction
-	drop	2
-	pushr
-	pushl	-3
-	pushc	0
-	getfa
-	pushc	1
-	getfa
-	call	_negFraction
-	drop	1
-	pushr
-	pushl	0
-	call	_divFraction
-	drop	2
-	pushr
-	pushl	-3
-	pushc	1
-	getfa
-	pushc	0
-	getfa
-	call	_negFraction
-	drop	1
-	pushr
-	pushl	0
-	call	_divFraction
-	drop	2
-	pushr
-	pushl	-3
-	pushc	0
-	getfa
-	pushc	0
-	getfa
-	pushl	0
-	call	_divFraction
-	drop	2
-	pushr
-	call	_newMatrix
-	drop	4
-	pushr
-	popr
-	jmp	__25
-__25:
-	rsf
-	ret
-
-//
-// void main()
-//
-_main:
-	asf	3
-	pushc	1
-	newa
-	dup
-	pushc	0
-	pushc	10
-	putfa
-	call	_writeString
-	drop	1
-	pushc	7
-	pushc	1
-	call	_newFraction
-	drop	2
-	pushr
-	pushc	4
-	pushc	1
-	call	_newFraction
-	drop	2
-	pushr
-	pushc	6
-	pushc	1
-	call	_newFraction
-	drop	2
-	pushr
-	pushc	5
-	pushc	1
-	call	_newFraction
-	drop	2
-	pushr
-	call	_newMatrix
-	drop	4
-	pushr
-	popl	0
-	pushl	0
-	call	_writeMatrix
-	drop	1
-	pushl	0
-	call	_invertMatrix
-	drop	1
-	pushr
-	popl	1
-	pushl	1
-	call	_writeMatrix
-	drop	1
-	pushl	1
-	call	_invertMatrix
-	drop	1
-	pushr
-	popl	2
-	pushl	2
-	call	_writeMatrix
-	drop	1
-__27:
-	rsf
-	ret

programs/matrix.nj

@@ -1,146 +0,0 @@
-//
-// matinv.nj -- invert 2x2 matrices of fractions
-//
-
-//--------------------------------------------------------------
-
-// greatest common divisor
-
-Integer gcd(Integer a, Integer b) {
-  local Integer h;
-  while (b != 0) {
-    h = a % b;
-    a = b;
-    b = h;
-  }
-  return a;
-}
-
-//--------------------------------------------------------------
-
-// fractions
-
-type Fraction = record {
-  Integer num;
-  Integer den;
-};
-
-Fraction newFraction(Integer num, Integer den) {
-  local Integer n;
-  local Integer d;
-  local Integer g;
-  local Fraction r;
-  if (num < 0) {
-    n = -num;
-  } else {
-    n = num;
-  }
-  if (den < 0) {
-    d = -den;
-  } else {
-    d = den;
-  }
-  g = gcd(n, d);
-  r = new(Fraction);
-  if ((num < 0) != (den < 0)) {
-    r.num = -n / g;
-  } else {
-    r.num = n / g;
-  }
-  r.den = d / g;
-  return r;
-}
-
-void writeFraction(Fraction f) {
-  writeInteger(f.num);
-  writeString("/");
-  writeInteger(f.den);
-}
-
-Fraction negFraction(Fraction f) {
-  return newFraction(-f.num, f.den);
-}
-
-Fraction addFraction(Fraction f1, Fraction f2) {
-  return newFraction(f1.num * f2.den + f2.num * f1.den, f1.den * f2.den);
-}
-
-Fraction subFraction(Fraction f1, Fraction f2) {
-  return newFraction(f1.num * f2.den - f2.num * f1.den, f1.den * f2.den);
-}
-
-Fraction mulFraction(Fraction f1, Fraction f2) {
-  return newFraction(f1.num * f2.num, f1.den * f2.den);
-}
-
-Fraction divFraction(Fraction f1, Fraction f2) {
-  return newFraction(f1.num * f2.den, f1.den * f2.num);
-}
-
-//--------------------------------------------------------------
-
-// 2x2 matrices of fractions
-
-type Matrix = Fraction[][];
-
-Matrix newMatrix(Fraction a00, Fraction a01,
-                 Fraction a10, Fraction a11) {
-  local Matrix m;
-  m = new(Fraction[2][]);
-  m[0] = new(Fraction[2]);
-  m[1] = new(Fraction[2]);
-  m[0][0] = a00;
-  m[0][1] = a01;
-  m[1][0] = a10;
-  m[1][1] = a11;
-  return m;
-}
-
-void writeMatrix(Matrix m) {
-  local Integer i;
-  local Integer j;
-  i = 0;
-  while (i < sizeof(m)) {
-    j = 0;
-    while (j < sizeof(m[i])) {
-      writeFraction(m[i][j]);
-      writeString("  ");
-      j = j + 1;
-    }
-    writeString("\n");
-    i = i + 1;
-  }
-  writeString("\n");
-}
-
-Matrix invertMatrix(Matrix m) {
-  local Fraction det;
-  det = subFraction(mulFraction(m[0][0], m[1][1]),
-                    mulFraction(m[0][1], m[1][0]));
-  if (det.num == 0) {
-    writeString("error: matrix cannot be inverted\n");
-    exit();
-  }
-  return newMatrix(
-    divFraction(m[1][1], det), divFraction(negFraction(m[0][1]), det),
-    divFraction(negFraction(m[1][0]), det), divFraction(m[0][0], det)
-  );
-}
-
-//--------------------------------------------------------------
-
-void main() {
-  local Matrix matrix;
-  local Matrix result1;
-  local Matrix result2;
-  writeString("\n");
-  matrix = newMatrix(
-    newFraction(7, 1), newFraction(4, 1),
-    newFraction(6, 1), newFraction(5, 1)
-  );
-  writeMatrix(matrix);
-  result1 = invertMatrix(matrix);
-  writeMatrix(result1);
-  result2 = invertMatrix(result1);
-  writeMatrix(result2);
-}

programs/newFraction.asm

@@ -1,26 +0,0 @@
-_subFraction:
-	asf	0
-	pushl	-4
-	getf	0
-	pushl	-3
-	getf	1
-	mul
-	pushl	-3
-	getf	0
-	pushl	-4
-	getf	1
-	mul
-	sub
-	pushl	-4
-	getf	1
-	pushl	-3
-	getf	1
-	mul
-	call	_newFraction
-	drop	2
-	pushr
-	popr
-	jmp	__14
-__14:
-	rsf
-	ret

programs/prog-test-1.asm

@@ -1,15 +1,11 @@
 pushc	3
 pushc	4
-eq
-wrint
+add
 pushc	10
-wrchr
-
 pushc	6
-pushc 6
-eq
+sub
+mul
 wrint
 pushc	10
 wrchr
 halt
-

programs/prog-test-2.asm

@@ -0,0 +1,9 @@
+	pushc	-2
+	rdint
+	mul
+	pushc	3
+	add
+	wrint
+	pushc	'\n'
+	wrchr
+	halt

programs/prog-test-3.asm

@@ -0,0 +1,5 @@
+	rdchr
+	wrint
+	pushc	'\n'
+	wrchr
+	halt

programs/prog02.asm

@@ -1,28 +0,0 @@
-//
-// prog02.asm -- call/ret with args, but without ret value
-//
-
-	asf	3
-	pushc	11
-	pushc	33
-	call	proc
-	drop	2
-	rsf
-	halt
-
-proc:
-	asf	2
-	pushl	-4
-	wrint
-	pushc	'\n'
-	wrchr
-	pushc	22
-	wrint
-	pushc	'\n'
-	wrchr
-	pushl	-3
-	wrint
-	pushc	'\n'
-	wrchr
-	rsf
-	ret

programs/prog04.asm

@@ -1,32 +0,0 @@
-//
-// prog04.asm -- call/ret with args, and with ret value
-//
-
-	asf	3
-	pushc	11
-	wrint
-	pushc	'\n'
-	wrchr
-	pushc	11
-	pushc	33
-	call	proc
-	drop	2
-	pushr
-	wrint
-	pushc	'\n'
-	wrchr
-	pushc	33
-	wrint
-	pushc	'\n'
-	wrchr
-	rsf
-	halt
-
-proc:
-	asf	2
-	pushl	-3
-	pushl	-4
-	sub
-	popr
-	rsf
-	ret

programs/prog1.asm?inline=false

@@ -1,31 +0,0 @@
-//
-// prog1.asm -- an assembler example with global variables
-//
-
-// global Integer x;
-// global Integer y;
-// x = 2;
-// y = x + 3;
-// x = 7 * y + x;
-// writeInteger(x + -33);
-// writeCharacter('\n');
-
-	pushc	2
-	popg	0
-	pushg	0
-	pushc	3
-	add
-	popg	1
-	pushc	7
-	pushg	1
-	mul
-	pushg	0
-	add
-	popg	0
-	pushg	0
-	pushc	-33
-	add
-	wrint
-	pushc	'\n'
-	wrchr
-	halt

programs/prog3.asm

@@ -1,9 +1,61 @@
-	pushc 1
-  asf	2
-  asf 4
-  pushc 23
-  asf 3
-  rsf
-  rsf
-  rsf
+//
+// prog1.asm -- an assembler example with global variables
+//
+
+//
+// compute the gcd of two positive numbers
+//
+// global Integer x;
+// global Integer y;
+// x = readInteger();
+// y = readInteger();
+// while (x != y) {
+//   if (x > y) {
+//     x = x - y;
+//   } else {
+//     y = y - x;
+//   }
+// }
+// writeInteger(x);
+// writeCharacter('\n');
+
+	// x = readInteger();
+	rdint
+	popg	0
+	// y = readInteger();
+	rdint
+	popg	1
+	// while ...
+L1:
+	// x != y
+	pushg	0 // 4
+	pushg	1
+	ne
+	brf	L2
+	// if ...
+	pushg	0
+	pushg	1
+	gt
+	brf	L3
+	// x = x - y
+	pushg	0
+	pushg	1
+	sub
+	popg	0
+	jmp	L4
+L3:
+	// y = y - x
+	pushg	1 // 17
+	pushg	0
+	sub
+	popg	1
+L4:
+	jmp	L1 // 21
+L2:
+	// writeInteger(x);
+	pushg	0 // 22
+	wrint
+	// writeCharacter('\n');
+	pushc	'\n'
+	wrchr
 	halt

programs/prog4.asm

@@ -1,12 +1,12 @@
 //
-// prog1.asm -- an assembler example with global variables
+// prog2.asm -- an assembler example with local variables
 //
 
 //
 // compute the gcd of two positive numbers
 //
-// global Integer x;
-// global Integer y;
+// local Integer x;
+// local Integer y;
 // x = readInteger();
 // y = readInteger();
 // while (x != y) {
@@ -19,43 +19,45 @@
 // writeInteger(x);
 // writeCharacter('\n');
 
+	asf	2
 	// x = readInteger();
 	rdint
-	popg	0
+	popl	0
 	// y = readInteger();
 	rdint
-	popg	1
+	popl	1
 	// while ...
 L1:
 	// x != y
-	pushg	0
-	pushg	1
+	pushl	0
+	pushl	1
 	ne
 	brf	L2
 	// if ...
-	pushg	0
-	pushg	1
+	pushl	0
+	pushl	1
 	gt
 	brf	L3
 	// x = x - y
-	pushg	0
-	pushg	1
+	pushl	0
+	pushl	1
 	sub
-	popg	0
+	popl	0
 	jmp	L4
 L3:
 	// y = y - x
-	pushg	1
-	pushg	0
+	pushl	1
+	pushl	0
 	sub
-	popg	1
+	popl	1
 L4:
 	jmp	L1
 L2:
 	// writeInteger(x);
-	pushg	0
+	pushl	0
 	wrint
 	// writeCharacter('\n');
 	pushc	'\n'
 	wrchr
+	rsf
 	halt

programs/prog5.asm

@@ -1,63 +1,35 @@
 //
-// prog2.asm -- an assembler example with local variables
+// prog01.asm -- call/ret without args, and without ret value
 //
 
-//
-// compute the gcd of two positive numbers
-//
-// local Integer x;
-// local Integer y;
-// x = readInteger();
-// y = readInteger();
-// while (x != y) {
-//   if (x > y) {
-//     x = x - y;
-//   } else {
-//     y = y - x;
-//   }
-// }
-// writeInteger(x);
-// writeCharacter('\n');
-
-	asf	2
-	// x = readInteger();
-	rdint
-	popl	0
-	// y = readInteger();
-	rdint
-	popl	1
-	// while ...
-L1:
-	// x != y
-	pushl	0
-	pushl	1
-	ne
-	brf	L2
-	// if ...
-	pushl	0
-	pushl	1
-	gt
-	brf	L3
-	// x = x - y
-	pushl	0
-	pushl	1
-	sub
-	popl	0
-	jmp	L4
-L3:
-	// y = y - x
-	pushl	1
-	pushl	0
-	sub
-	popl	1
-L4:
-	jmp	L1
-L2:
-	// writeInteger(x);
-	pushl	0
+	asf	3
+	pushc	11
+	wrint
+	pushc	'\n'
+	wrchr
+	call	proc
+	pushc	44
 	wrint
-	// writeCharacter('\n');
 	pushc	'\n'
 	wrchr
 	rsf
 	halt
+
+proc:
+	asf	2
+	pushc	22
+	wrint
+	pushc	'\n'
+	wrchr
+	call	proctwo
+	rsf
+	ret
+
+proctwo:
+	asf	2
+	pushc	33
+	wrint
+	pushc	'\n'
+	wrchr
+	rsf
+	ret

programs/prog6.asm

@@ -1,61 +1,28 @@
 //
-// prog1.asm -- an assembler example with global variables
+// prog02.asm -- call/ret with args, but without ret value
 //
 
-//
-// compute the gcd of two positive numbers
-//
-// global Integer x;
-// global Integer y;
-// x = readInteger();
-// y = readInteger();
-// while (x != y) {
-//   if (x > y) {
-//     x = x - y;
-//   } else {
-//     y = y - x;
-//   }
-// }
-// writeInteger(x);
-// writeCharacter('\n');
+	asf	3
+	pushc	11
+	pushc	33
+	call	proc
+	drop	2
+	rsf
+	halt
 
-	// x = readInteger();
-	rdint
-	popg	0
-	// y = readInteger();
-	rdint
-	popg	1
-	// while ...
-L1:
-	// x != y
-	pushg	0
-	pushg	1
-	ne
-	brf	L2
-	// if ...
-	pushg	0
-	pushg	1
-	gt
-	brf	L3
-	// x = x - y
-	pushg	0
-	pushg	1
-	sub
-	popg	0
-	jmp	L4
-L3:
-	// y = y - x
-	pushg	1
-	pushg	0
-	sub
-	popg	1
-L4:
-	jmp	L1
-L2:
-	// writeInteger(x);
-	pushg	0
+proc:
+	asf	2
+	pushl	-4
 	wrint
-	// writeCharacter('\n');
 	pushc	'\n'
 	wrchr
-	halt
+	pushc	22
+	wrint
+	pushc	'\n'
+	wrchr
+	pushl	-3
+	wrint
+	pushc	'\n'
+	wrchr
+	rsf
+	ret

programs/prog7.asm

@@ -1,16 +1,27 @@
 //
-// prog04.asm -- call/ret with args, and with ret value
+// prog02.asm -- call/ret with args, but without ret value
 //
 
-	pushc 12
-  rdint
-  mul
-  wrint
+	asf	3
+	pushc	11
+	pushc	33
 	call	proc
+	drop	2
+	rsf
 	halt
 
 proc:
-	asf 1
+	asf	2
+	pushl	4
+	wrint
+	pushc	'\n'
+	wrchr
+	pushc	22
+	wrint
+	pushc	'\n'
+	wrchr
+	pushl	3
+	wrint
 	pushc	'\n'
 	wrchr
 	rsf

record.c

@@ -1,55 +0,0 @@
-//
-// Created by Nils Polek on 23.01.24.
-//
-#ifndef RECORD
-#define RECORD
-#include "stackslot.c"
-#include "instruktion.c"
-ObjRef newRecord(int size){
-    ObjRef record;
-    unsigned int objSize;
-    objSize = sizeof(*record) + (size * sizeof(void *));
-    if((record = my_malloc(objSize)) == NULL){
-        perror("malloc");
-    }
-    record->size = MSB;
-    record->size = record->size + size;
-    for(int i = 0; i < size; i++) {
-        GET_REFS_PTR(record)[i] = NULL;
-    }
-    return record;
-}
-int getSize(ObjRef arr){
-    if(arr == NULL) return 0;
-    return GET_ELEMENT_COUNT(arr);
-}
-ObjRef getField(ObjRef arr, int point){
-    if(arr == NULL) perror("Record is null");
-    if(0 > point || point > getSize(arr)){
-        printf("Index %i out of bounds for length %i\n",point, getSize(arr));
-    }
-    return *(ObjRef *)GET_REFS_PTR(arr)[point]->data;
-}
-void setField(ObjRef arr, int point, ObjRef value){
-    bool isNull = false;
-    if(value == NULL) isNull = true;
-    if(0 > point || point >= getSize(arr)){
-        printf("Index %i out of bounds for length %i\n",point, getSize(arr));
-        exit(EXIT_FAILURE);
-    }
-    if(arr == NULL) perror("Record is null");
-    if(IS_PRIMITIVE(arr))  perror("Record is a primitive");
-    int size;
-    if (isNull) size = sizeof(void *);
-    else {
-        if (IS_PRIMITIVE(value))
-            size = value->size;
-        else
-            size = sizeof(*value) + (GET_ELEMENT_COUNT(value) * sizeof(void *));
-    }
-    if((GET_REFS_PTR(arr)[point] = my_malloc(size)) == NULL) perror("malloc");
-    GET_REFS_PTR(arr)[point] ->size = size;
-    * (ObjRef *)GET_REFS_PTR(arr)[point]->data = value;
-}
-
-#endif

stack.c

@@ -3,79 +3,46 @@
 //
 #ifndef STACK
 #define STACK
+#define SIZE 1000
+
 
 #include <stdio.h>
 #include <stdlib.h>
-#include "stackslot.c"
 
-struct stack {
-    int* size;
-    int* current;
-    StackSlot *stack;
+struct stackFrame {
+    int *fp; // Frame pointer
+    int *sp; // Stack pointer
+    int *bp; // Base pointer
 };
 
-typedef struct {
-    unsigned int size;
-    ObjRef *refs;
-}ObjRefContainer;
+struct stack {
+    int size;
+    int currentFrame;
+    struct stackFrame *frames[SIZE];
+};
 
-void printStack(struct stack stack, int fp) {
-    printf("Stack\nSize:\t\t%i\nCurrent:\t%i\n", *stack.size, *stack.current);
-    for (int i = *stack.current -1; i >= 0; --i) {
-        printf("%i\t",i);
-        if(stack.stack[i].u.objRef == NULL) printf("|NULL|");
-        else
-        if(stack.stack[i].isObjRef){
-          printf("|%p|", (void *)stack.stack[i].u.objRef);
-          if(stack.stack[i].u.objRef->size == sizeof(int))
-            printf("(%i)",*(int *)stack.stack[i].u.objRef->data);
-        }else {
-        printf("|%i|", getIntValfromStackSlot(stack.stack[i]));
-      }
-      if(fp == i) printf("<-\tFP\n");
-      else if(*stack.current == i) printf("<-\tSP\n");
-      else printf("\n");
+void printStack(struct stack *stack) {
+    printf("Stack:\n");
+    for (int i = 0; i < stack->size; ++i) {
+        printf("[%d] = %d\n", i, stack->frames[stack->currentFrame]->sp[i]);
     }
 }
 
-//ObjRefContainer getRefs(struct stack stack){
-//  ObjRefContainer continer;
-//  int counter = 0;
-//  for (int i = 0; i <= *stack.current; i++) {
-//    if(stack.stack[i].isObjRef == true) counter++;
-//  }
-//  continer.size = counter;
-//  ObjRef *list = (ObjRef *)malloc(counter * sizeof(ObjRef));
-//  for (int i = 0; i<= *stack.current; i++)
-//    if(stack.stack[i].isObjRef == true)
-//      list[counter--] = stack.stack[i].u.objRef;
-//  continer.refs = list;
-//  return continer;
-//}
-
-void push(struct stack s, StackSlot value) {
-    if (*s.current >= *s.size) {
-        printf("Stack Overflow\n");
-        exit(EXIT_FAILURE);
-    }
-    s.stack[*s.current] = value;
-    *s.current=*s.current + 1;
+void push(struct stack *stack, unsigned int value) {
+    struct stackFrame *currentFrame = stack->frames[stack->currentFrame];
+    *(currentFrame->sp) = value;
+    currentFrame->sp++;
 }
 
-StackSlot pop(struct stack s) {
-    if (*s.current == 0) {
-        printf("Stack Underflow\n");
-        exit(EXIT_FAILURE);
-    }
-    *s.current = *s.current -1;
-    return s.stack[*s.current];
+int pop(struct stack *stack) {
+    struct stackFrame *currentFrame = stack->frames[stack->currentFrame];
+    currentFrame->sp--;
+    return *(currentFrame->sp);
 }
 
-int peek(struct stack s, int steps) {
-    if (*s.current - steps < 0) {
-        printf("Stack Underflow\n");
-        exit(EXIT_FAILURE);
-    }
-    return getIntValfromStackSlot(s.stack[*s.current - steps]);
+int peek(struct stack *stack, int steps) { // peek is pop without removing the value
+    struct stackFrame *currentFrame = stack->frames[stack->currentFrame];
+    return *(currentFrame->sp - steps);
 }
+
 #endif

stackslot.c

@@ -1,67 +0,0 @@
-#ifndef STACKSLOT
-#define STACKSLOT
-#include <stdbool.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include "objref.c"
-#include "heap.h"
-
-typedef int Object;
-
-
-typedef struct {
-    bool isObjRef;
-    union {
-        ObjRef objRef;
-        int number;
-    } u;
-} StackSlot;
-
-ObjRef getIntObj(int val) {
-    ObjRef intObject;
-    unsigned int objSize = sizeof(ObjRef) + sizeof(int);
-    if ((intObject = my_malloc(objSize)) == NULL) {
-        perror("malloc");
-    }
-    *(int *) intObject->data = val;
-    intObject->size = objSize;
-    return intObject;
-}
-
-int getValFromIntObj(ObjRef iref) {
-    if (iref == NULL) perror("ObjRef is null");
-    return *(int *) iref->data;
-}
-
-int getIntValfromStackSlot(StackSlot s) {
-    if (s.isObjRef) {
-        return *(int *) s.u.objRef->data;
-    }
-    return s.u.number;
-}
-
-void setValIntObj(ObjRef iref, int val) {
-    if (iref == NULL) perror("ObjRef is null");
-    iref->size = sizeof(int)+sizeof(ObjRef);
-    *(int *) iref->data = val;
-}
-
-StackSlot stackSlotWithObjRef(ObjRef val) {
-    StackSlot *stackSlot;
-    stackSlot = my_malloc(sizeof(StackSlot));
-    if(stackSlot == NULL) perror("malloc");
-    stackSlot->isObjRef = true;
-    stackSlot->u.objRef = val;
-    return *stackSlot;
-}
-
-StackSlot stackSlotWitchNumber(int val) {
-    StackSlot *stackSlot;
-    stackSlot = my_malloc(sizeof(StackSlot));
-    if(stackSlot == NULL) perror("malloc");
-    stackSlot->isObjRef = false;
-    stackSlot->u.number = val;
-    return *stackSlot;
-}
-
-#endif

support.c

@@ -1,28 +0,0 @@
-#include "support.h"
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "objref.c"
-#include "heap.h"
-
-void fatalError(char *msg){
-  printf("Fatal error: %s\n", msg);
-  exit(1);
-}
-
-void * newPrimObject(int dataSize) {
-  ObjRef bigObjRef;
-
-  bigObjRef = my_malloc(sizeof(unsigned int) +
-                  dataSize * sizeof(unsigned char));
-  if (bigObjRef == NULL) {
-    fatalError("newPrimObject() got no memory");
-  }
-  bigObjRef->size = sizeof(unsigned int) + dataSize * sizeof(unsigned char);
-  return bigObjRef;
-}
-
-void * getPrimObjectDataPointer(void * obj){
-    ObjRef oo = ((ObjRef)  (obj));
-    return oo->data;
-}

test.asm

@@ -1,155 +0,0 @@
-//
-// version
-//
-	.vers	7
-
-//
-// execution framework
-//
-__start:
-	call	_main
-	call	_exit
-__stop:
-	jmp	__stop
-
-//
-// Integer readInteger()
-//
-_readInteger:
-	asf	0
-	rdint
-	popr
-	rsf
-	ret
-
-//
-// void writeInteger(Integer)
-//
-_writeInteger:
-	asf	0
-	pushl	-3
-	wrint
-	rsf
-	ret
-
-//
-// Character readCharacter()
-//
-_readCharacter:
-	asf	0
-	rdchr
-	popr
-	rsf
-	ret
-
-//
-// void writeCharacter(Character)
-//
-_writeCharacter:
-	asf	0
-	pushl	-3
-	wrchr
-	rsf
-	ret
-
-//
-// Integer char2int(Character)
-//
-_char2int:
-	asf	0
-	pushl	-3
-	popr
-	rsf
-	ret
-
-//
-// Character int2char(Integer)
-//
-_int2char:
-	asf	0
-	pushl	-3
-	popr
-	rsf
-	ret
-
-//
-// void exit()
-//
-_exit:
-	asf	0
-	halt
-	rsf
-	ret
-
-//
-// void writeString(String)
-//
-_writeString:
-	asf	1
-	pushc	0
-	popl	0
-	jmp	_writeString_L2
-_writeString_L1:
-	pushl	-3
-	pushl	0
-	getfa
-	call	_writeCharacter
-	drop	1
-	pushl	0
-	pushc	1
-	add
-	popl	0
-_writeString_L2:
-	pushl	0
-	pushl	-3
-	getsz
-	lt
-	brt	_writeString_L1
-	rsf
-	ret
-
-//
-// void main()
-//
-_main:
-	asf	2
-	new	2
-	popl	1
-	pushl	1
-	pushc	5
-	putf	0
-	pushl	1
-	getf	0
-	popl	0
-	pushl	1
-	pushc	2
-	pushl	0
-	mul
-	putf	1
-	pushl	1
-	getf	0
-	call	_writeInteger
-	drop	1
-	pushc	1
-	newa
-	dup
-	pushc	0
-	pushc	10
-	putfa
-	call	_writeString
-	drop	1
-	pushl	1
-	getf	1
-	call	_writeInteger
-	drop	1
-	pushc	1
-	newa
-	dup
-	pushc	0
-	pushc	10
-	putfa
-	call	_writeString
-	drop	1
-__0:
-	rsf
-	ret

test.nj

@@ -1,3 +0,0 @@
-void main(){
-
-}