Turingon/QBoy
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dismuntistilo preta

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Turingon 2024-09-05 19:25:22 +02:00
parent ae867cde3a
commit 524be84d8c
3 changed files with 95 additions and 15 deletions
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110
disassembler.c
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@ -85,19 +85,19 @@ int disassemble8080(buffer* b, int pc, cJSON* json) {
char opcode_str[5];
sprintf(opcode_str, "0x%02X", *code);
printf("%s\n", opcode_str);
//printf("%s\n", opcode_str);
if (strcmp(opcode_str, "0xCB") == 0) {
printf("We have a prefixed command!\n");
unsigned char *code = &(b->buffer[pc+1]);
pc++;
unsigned char *code = &(b->buffer[pc]);
sprintf(opcode_str, "0x%02X", *code);
printf("%s\n", opcode_str);
//printf("%s\n", opcode_str);
cJSON *prefixed = cJSON_GetObjectItem(json, "cbprefixed");
if (unprefixed == NULL) {
printf("Error: 'unprefixed' not found in JSON.\n");
if (prefixed == NULL) {
printf("Error: 'prefixed' not found in JSON.\n");
return 0;
}
cJSON *command = cJSON_GetObjectItem(prefixed, opcode_str);
@ -108,10 +108,68 @@ int disassemble8080(buffer* b, int pc, cJSON* json) {
cJSON *mnemonic_item = cJSON_GetObjectItem(command, "mnemonic");
cJSON *bytes_item = cJSON_GetObjectItem(command, "bytes");
printf("Mnemnoic: %s\t", mnemonic);
if (mnemonic_item != NULL && cJSON_IsString(mnemonic_item)) {
strcpy(mnemonic, mnemonic_item->valuestring);
}
if (bytes_item != NULL && cJSON_IsNumber(bytes_item)) {
opbytes = bytes_item->valueint;
}
printf("%s \t", mnemonic);
// Extract and print operands
int operand_count = 0;
cJSON *operands = cJSON_GetObjectItem(command, "operands");
if (operands != NULL && cJSON_IsArray(operands)) {
operand_count = cJSON_GetArraySize(operands);
//printf("Number of operands: %d\n", operand_count);
for (int i = 0; i < operand_count; i++) {
if (i == 1) {
printf(", ");
}
cJSON *operand = cJSON_GetArrayItem(operands, i);
cJSON *name = cJSON_GetObjectItem(operand, "name");
cJSON *immediate = cJSON_GetObjectItem(operand, "immediate");
cJSON *bytes = cJSON_GetObjectItem(operand, "bytes");
if (immediate != NULL && cJSON_IsBool(immediate)) {
printf("%s", cJSON_IsTrue(immediate) ? "" : "(");
}
if (bytes != NULL && cJSON_IsNumber(bytes)) {
if (bytes->valueint == 1) {
unsigned char *code = &(b->buffer[pc+1]);
sprintf(opcode_str, "0x%02X", *code);
printf("%s", opcode_str);
}
if (bytes->valueint == 2) {
unsigned char *code = &(b->buffer[pc+2]);
sprintf(opcode_str, "0x%02X", *code);
printf("%s", opcode_str);
sprintf(opcode_str, "%02X", *(code-1));
printf("%s", opcode_str);
}
}
if (name != NULL && cJSON_IsString(name) && (bytes == NULL)) {
//printf("Operand %d: %s", i + 1, name->valuestring);
printf("%s", name->valuestring);
}
if (bytes != NULL && cJSON_IsNumber(bytes)) {
//printf(", Bytes: %d", bytes->valueint);
}
if (immediate != NULL && cJSON_IsBool(immediate)) {
printf("%s", cJSON_IsTrue(immediate) ? "" : ")");
//printf(", Immediate: %s", cJSON_IsTrue(immediate) ? "true" : "false");
}
}
}
printf("\n");
printf(" ^ We have a prefixed command!\n");
return opbytes+1;
}
@ -138,7 +196,7 @@ int disassemble8080(buffer* b, int pc, cJSON* json) {
opbytes = bytes_item->valueint;
}
printf("Mnemnoic: %s\t", mnemonic);
printf("%s \t", mnemonic);
// Extract and print operands
int operand_count = 0;
@ -147,22 +205,44 @@ int disassemble8080(buffer* b, int pc, cJSON* json) {
if (operands != NULL && cJSON_IsArray(operands)) {
operand_count = cJSON_GetArraySize(operands);
printf("Number of operands: %d\n", operand_count);
//printf("Number of operands: %d\n", operand_count);
for (int i = 0; i < operand_count; i++) {
if (i == 1) {
printf(", ");
}
cJSON *operand = cJSON_GetArrayItem(operands, i);
cJSON *name = cJSON_GetObjectItem(operand, "name");
cJSON *immediate = cJSON_GetObjectItem(operand, "immediate");
cJSON *bytes = cJSON_GetObjectItem(operand, "bytes");
if (name != NULL && cJSON_IsString(name)) {
printf("Operand %d: %s", i + 1, name->valuestring);
cJSON *bytes = cJSON_GetObjectItem(operand, "bytes");
if (immediate != NULL && cJSON_IsBool(immediate)) {
printf("%s", cJSON_IsTrue(immediate) ? "" : "(");
}
if (bytes != NULL && cJSON_IsNumber(bytes)) {
if (bytes->valueint == 1) {
unsigned char *code = &(b->buffer[pc+1]);
sprintf(opcode_str, "0x%02X", *code);
printf("%s", opcode_str);
}
if (bytes->valueint == 2) {
unsigned char *code = &(b->buffer[pc+2]);
sprintf(opcode_str, "0x%02X", *code);
printf("%s", opcode_str);
sprintf(opcode_str, "%02X", *(code-1));
printf("%s", opcode_str);
}
}
if (name != NULL && cJSON_IsString(name) && (bytes == NULL)) {
//printf("Operand %d: %s", i + 1, name->valuestring);
printf("%s", name->valuestring);
}
if (bytes != NULL && cJSON_IsNumber(bytes)) {
printf(", Bytes: %d", bytes->valueint);
//printf(", Bytes: %d", bytes->valueint);
}
if (immediate != NULL && cJSON_IsBool(immediate)) {
printf(", Immediate: %s", cJSON_IsTrue(immediate) ? "true" : "false");
printf("%s", cJSON_IsTrue(immediate) ? "" : ")");
//printf(", Immediate: %s", cJSON_IsTrue(immediate) ? "true" : "false");
}
printf("\n");
}
}

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