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Vugfix in brainf*ck interpreter

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This commit is contained in:
Veit Heller
2014-08-03 21:34:02 +02:00
parent 5bd5aa809b
commit dd5f565cf3
2 changed files with 8 additions and 8 deletions
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16
nbfi/src/nbfi.c
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@@ -26,16 +26,16 @@ static inline void die(int code, const char* message){
}
struct instruction_t{
unsigned short operator;
unsigned short operand;
unsigned int operator;
unsigned int operand;
};
static struct instruction_t program[PROGRAM_SIZE];
static unsigned short stack[MAX_SIZE];
static unsigned int sp = 0;
static unsigned int stack[MAX_SIZE];
static unsigned long sp = 0;
void compile(FILE* fp){
unsigned short pc = 0, jmp_pc;
unsigned int pc = 0, jmp_pc;
int ip;
while ((ip = getc(fp)) != EOF && pc < MAX_SIZE){
switch (ip) {
@@ -73,7 +73,7 @@ void compile(FILE* fp){
}
void execute(){
unsigned short data[DATA_SIZE], pc = 0;
unsigned int data[DATA_SIZE], pc = 0;
unsigned int ptr = DATA_SIZE;
while (--ptr) data[ptr] = 0;
while (program[pc].operator != OP_END && ptr < DATA_SIZE){
@@ -82,8 +82,8 @@ void execute(){
case OP_DEC_DP: ptr--; break;
case OP_INC_VAL: data[ptr]++; break;
case OP_DEC_VAL: data[ptr]--; break;
case OP_OUT: putchar(data[ptr]); break;
case OP_IN: data[ptr] = (short unsigned int)getchar(); break;
case OP_OUT: putchar((signed int)data[ptr]); break;
case OP_IN: data[ptr] = (unsigned int)getchar(); break;
case OP_JMP_FWD: if(!data[ptr]) { pc = program[pc].operand; } break;
case OP_JMP_BCK: if(data[ptr]) { pc = program[pc].operand; } break;
default: die(2, "Unknown instruction.");

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vvm/bin/vvm
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