107 lines
2.2 KiB
C
107 lines
2.2 KiB
C
#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#define IMMEDIATE(x) ((x) & 0x00FFFFFF)
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#define HALT 0
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#define PUSHC 1
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#define ADD 2
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#define SUB 3
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#define MUL 4
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#define DIV 5
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#define MOD 6
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#define RDINT 7
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#define WRINT 8
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#define RDCHR 9
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#define WRCHR 10
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unsigned int programmSpeicher[1000];
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// Stack
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unsigned int stack[1000];
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unsigned int current = 0;
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void stackPush(unsigned int value) {
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if (current > 100) {
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fprintf(stderr, "stack overflow\n");
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exit(EXIT_FAILURE);
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}
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stack[current] = value;
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current++;
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}
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unsigned int stackPop(void) {
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if (current < 1) {
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fprintf(stderr, "stack underflow\n");
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exit(EXIT_FAILURE);
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}
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return --current;
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}
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void version(void) {
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printf("Ninja Virtual Machine version %i (compiled %s, %s)\n", 0, __DATE__, __TIME__);
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}
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void help(void) {
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printf("usage: ./njvm [option] [option] ...\n\t--version\tshow version and exit\n\t--help\t\tshow this help and exit\n");
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}
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void useption(int argc, char *argv[]) {
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if (argc > 1) {
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if (strcmp(argv[1], "--version") == 0) {
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version();
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} else if (strcmp(argv[1], "--help") == 0) {
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help();
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} else if (argc != 0) {
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printf("unknown command line argument '%s', try './njvm --help'", argv[1]);
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}
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}
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}
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void execute(void) {
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int i = 0;
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while (programmSpeicher[i] != 0) {
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switch (programmSpeicher[i] >> 24) {
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case HALT:
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break;
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case PUSHC:
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break;
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case ADD:
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break;
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case SUB:
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break;
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case MUL:
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break;
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case DIV:
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break;
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case MOD:
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break;
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case RDINT:
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break;
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case WRINT:
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break;
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case RDCHR:
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break;
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case WRCHR:
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break;
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}
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i++;
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}
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}
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int main(int argc, char *argv[]) {
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if (argc > 1) useption(argc, argv);
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else {
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// Started
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printf("Ninja Virtual Machine started\n");
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// Stopped
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printf("Ninja Virtual Machine stopped\n");
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return 0;
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}
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}
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