Max Regan
6e2f4096a2
Add a mostly non-functional Gameboy CPU and the skeleton of a Gameboy assembler intended for unit tests.
40 lines
845 B
C
40 lines
845 B
C
#include <stdlib.h>
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#include "gbasm/assemble.h"
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#include "gbasm/parser.h"
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#include "gbasm/types.h"
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#include "gbasm/errors.h"
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#include "gbasm/opcodes.h"
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#include "common.h"
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#define GBASM_MAX_INSTS 1024
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struct gb_asm_prog *prog;
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int gbasm_assemble(char *program, struct emitter *emitter)
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{
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struct gbasm_parsed_inst insts[GBASM_MAX_INSTS];
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int num_insts;
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num_insts = gbasm_parse_buffer(program, insts, ARRAY_SIZE(insts));
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if (num_insts < 0) {
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return num_insts;
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}
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DEBUG_LOG("parsed %d instructions\n", num_insts);
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for (int i = 0; i < num_insts; i++) {
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DEBUG_LOG("emitting %s\n", insts[i].opcode);
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const struct gbasm_op_info *info = gbasm_get_opcode_info(insts[i].opcode);
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if (info == NULL) {
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gbasm_unknown_opcode_error(&insts[i]);
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}
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info->check(&insts[i], info);
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info->emit(emitter, &insts[i]);
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}
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return 0;
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}
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