2021-07-08 02:24:24 -07:00
|
|
|
#include <stdio.h>
|
|
|
|
|
|
|
|
#include "debug.h"
|
|
|
|
#include "value.h"
|
|
|
|
|
2021-07-29 23:38:20 -07:00
|
|
|
void disassembleChunk(Chunk *chunk, const char *name) {
|
2021-07-08 02:24:24 -07:00
|
|
|
printf("== %s ==\n", name);
|
|
|
|
|
|
|
|
for (int offset = 0; offset < chunk->count;) {
|
|
|
|
offset = disassembleInstruction(chunk, offset);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2021-07-29 23:38:20 -07:00
|
|
|
static int constantInstruction(const char *name, Chunk *chunk, int offset) {
|
2021-07-08 02:24:24 -07:00
|
|
|
uint8_t constant = chunk->code[offset + 1];
|
|
|
|
printf("%-16s %4d '", name, constant);
|
|
|
|
printValue(chunk->constants.values[constant]);
|
|
|
|
printf("'\n");
|
|
|
|
return offset + 2;
|
|
|
|
}
|
|
|
|
|
2021-07-29 23:38:20 -07:00
|
|
|
static int simpleInstruction(const char *name, int offset) {
|
2021-07-08 02:24:24 -07:00
|
|
|
printf("%s\n", name);
|
|
|
|
return offset + 1;
|
|
|
|
}
|
|
|
|
|
2021-07-29 23:38:20 -07:00
|
|
|
int disassembleInstruction(Chunk *chunk, int offset) {
|
2021-07-08 02:24:24 -07:00
|
|
|
printf("%04d ", offset);
|
2021-07-29 23:38:20 -07:00
|
|
|
if (offset > 0 && chunk->lines[offset] == chunk->lines[offset - 1]) {
|
2021-07-08 02:24:24 -07:00
|
|
|
printf(" | ");
|
|
|
|
} else {
|
|
|
|
printf("%4d ", chunk->lines[offset]);
|
|
|
|
}
|
|
|
|
|
|
|
|
uint8_t instruction = chunk->code[offset];
|
|
|
|
switch (instruction) {
|
|
|
|
case OP_CONSTANT:
|
|
|
|
return constantInstruction("OP_CONSTANT", chunk, offset);
|
2021-07-29 23:38:20 -07:00
|
|
|
case OP_NEGATE:
|
|
|
|
return simpleInstruction("OP_NEGATE", offset);
|
2021-07-08 02:24:24 -07:00
|
|
|
case OP_RETURN:
|
|
|
|
return simpleInstruction("OP_RETURN", offset);
|
|
|
|
default:
|
|
|
|
printf("Unknown opcode %d\n", instruction);
|
|
|
|
return offset + 1;
|
|
|
|
}
|
|
|
|
}
|