KSP/njvm
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Added the Stack

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This commit is contained in:
nplk84 2023-10-12 12:57:51 +02:00
parent a64471ed41
commit 1b742e0007
1 changed files with 21 additions and 3 deletions
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24
njvm.c
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@ -1,13 +1,33 @@
#include <stdio.h> #include <stdio.h>
#include <string.h> #include <string.h>
#include <stdlib.h>
#include "config.h" #include "config.h"
unsigned int stack[100];
unsigned int current = 0;
void stackPush(unsigned int value){
if(current > 100) {
fprintf(stderr, "stack overflow\n");
exit(EXIT_FAILURE);
}
stack[current] = value;
current++;
}
unsigned int stackPop(){
if(current < 1) {
fprintf(stderr, "stack underflow\n");
exit(EXIT_FAILURE);
}
return --current;
}
void version() { void version() {
printf("Ninja Virtual Machine version %i (compiled %s, %s)\n", PROJECT_VERSION, __DATE__, __TIME__); printf("Ninja Virtual Machine version %i (compiled %s, %s)\n", PROJECT_VERSION, __DATE__, __TIME__);
} }
void help() { void help() {
printf("usage: ./njvm [option] [option] ...\n\t--version\tshow version and exit\n\t--help\t\tshow this help and exit"); printf("usage: ./njvm [option] [option] ...\n\t--version\tshow version and exit\n\t--help\t\tshow this help and exit\n");
} }
void printArgs(int argc, char *argv[]){ void printArgs(int argc, char *argv[]){
for (int i = 0; i < argc; ++i) { for (int i = 0; i < argc; ++i) {
@ -34,8 +54,6 @@ int main(int argc, char *argv[]) {
// Started // Started
printf("Ninja Virtual Machine started\n"); printf("Ninja Virtual Machine started\n");
// Stopped // Stopped
printf("Ninja Virtual Machine stopped\n"); printf("Ninja Virtual Machine stopped\n");
return 0; return 0;