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Replaced opcode defines with enum

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This commit is contained in:
Veit Heller
2014-12-21 12:31:10 +01:00
parent e676d40e62
commit e16553d93b
2 changed files with 43 additions and 30 deletions
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17
src/vm.c
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@@ -33,7 +33,9 @@ void vm_execute(int code[], int ip, int datasize, unsigned long length){
register int sp = -1;
register int fp = -1;
int nargs, addr, a, b;
instruction* ins = setup_instructions();
while(ip < length){
int opcode = code[ip];
ip++;
@@ -168,6 +170,7 @@ program vm_compile(char *filename){
char** command = NULL;
unsigned long size = 100;
int* code = malloc(size * sizeof(int));
int* code_realloc = NULL;
unsigned long codep = 0;
register int i;
instruction* ins = setup_instructions();
@@ -187,9 +190,13 @@ program vm_compile(char *filename){
if(codep == size){
size += 100;
code = (int *) realloc(code, size * sizeof(int));
if(code == NULL)
code_realloc = (int *) realloc(code, size * sizeof(int));
if(code_realloc == NULL){
free(code);
die(127, "Program too big, could not allocate enough storage.");
}
code = code_realloc;
code_realloc = NULL;
}
if(strcmp(command[0], "ENTRY") == 0){
@@ -231,7 +238,11 @@ program vm_compile(char *filename){
if(line)
free(line);
code = (int *) realloc(code, codep * sizeof(int));
code_realloc = (int *) realloc(code, codep * sizeof(int));
if(code_realloc != NULL){
code = code_realloc;
code_realloc = NULL;
}
prog.length = codep;
prog.entrypoint = entry;