Turingon/QBoy
Turingon/QBoy
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Aldonis prefiksitajn komandojn

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Turingon 2024-09-02 13:52:53 +02:00
parent 454519105a
commit ba5b67cd47
3 changed files with 36 additions and 12 deletions
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2
.vscode/settings.json vendored
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@ -4,7 +4,7 @@
"C_Cpp_Runner.debuggerPath": "gdb",
"C_Cpp_Runner.cStandard": "",
"C_Cpp_Runner.cppStandard": "",
"C_Cpp_Runner.msvcBatchPath": "C:/Program Files/Microsoft Visual Studio/VR_NR/Community/VC/Auxiliary/Build/vcvarsall.bat",
"C_Cpp_Runner.msvcBatchPath": "",
"C_Cpp_Runner.useMsvc": false,
"C_Cpp_Runner.warnings": [
"-Wall",

BIN
disassembler
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46
disassembler.c
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@ -87,12 +87,39 @@ int disassemble8080(buffer* b, int pc, cJSON* json) {
sprintf(opcode_str, "0x%02X", *code);
printf("%s\n", opcode_str);
// Here begins the cJSON part
if (strcmp(opcode_str, "0xCB") == 0) {
printf("We have a prefixed command!\n");
unsigned char *code = &(b->buffer[pc+1]);
sprintf(opcode_str, "0x%02X", *code);
printf("%s\n", opcode_str);
cJSON *prefixed = cJSON_GetObjectItem(json, "cbprefixed");
if (unprefixed == NULL) {
printf("Error: 'unprefixed' not found in JSON.\n");
return 0;
}
cJSON *command = cJSON_GetObjectItem(prefixed, opcode_str);
if (command == NULL) {
printf("Error: Command with opcode %s not found.\n", opcode_str);
return 0;
}
cJSON *mnemonic_item = cJSON_GetObjectItem(command, "mnemonic");
cJSON *bytes_item = cJSON_GetObjectItem(command, "bytes");
printf("Mnemnoic: %s\t", mnemonic);
printf("\n");
return opbytes;
}
cJSON *unprefixed = cJSON_GetObjectItem(json, "unprefixed");
if (unprefixed == NULL) {
printf("Error: 'unprefixed' not found in JSON.\n");
return 0; // We don't want to continue
return 0;
}
cJSON *command = cJSON_GetObjectItem(unprefixed, opcode_str);
if (command == NULL) {
@ -110,13 +137,10 @@ int disassemble8080(buffer* b, int pc, cJSON* json) {
if (bytes_item != NULL && cJSON_IsNumber(bytes_item)) {
opbytes = bytes_item->valueint;
}
// Here ends the cJSON part
printf("Number of Opbytes: %d ", opbytes);
printf("Mnemnoic: %s", mnemonic);
if (opbytes > 5 || opbytes < 1) {
opbytes = 1;
}
printf("Mnemnoic: %s\t", mnemonic);
printf("\n");
return opbytes;
}
@ -138,14 +162,14 @@ void print_keys(cJSON *json) {
int main (int argc, char** argv) {
int pc = 0; //Program Counter
int pc = 0x150; //Program Counter
buffer* buff = read_file(argv);
if (buff == NULL) {
printf("Fatal error.\n");
return 1;
}
print_buffer(buff);
//print_buffer(buff);
cJSON *json = read_cjson();
if (json == NULL) {
@ -156,7 +180,7 @@ int main (int argc, char** argv) {
//print_keys(json);
while (pc < 400) {//buff->length) {
while (pc < 0x400) {//buff->length) {
pc += disassemble8080(buff, pc, json);
}
free(buff);