jake/SplitBit-Emulator
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Various bug fixes to assembler, added more data pointers.

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This commit is contained in:
Anachronaut
2026-08-13 23:41:22 -04:00
parent b50210d127
commit c2440ae5fa
38 changed files with 1028 additions and 236 deletions
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Source/Emulator/utility.c
+36 -14
View File
@@ -5,6 +5,7 @@
#include "utility.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include "../Assembler/assembly.h"
@@ -14,43 +15,64 @@ void printHelp(const char *programName) {
printf("\n");
printf("Options:\n");
printf(" -d, --debug Enable debug mode.\n");
printf(" -c, --cycles N Stop after N cycles instead of running until the program halts.\n");
printf(" -f, --fast Run as fast as possible, ignoring the emulated cycle rate.\n");
printf(" -h, --help Display this help message.\n");
}
uint8_t parseOptions(int argc, char *argv[]) {
uint8_t parseOptions(int argc, char *argv[], EmulatorOptions *options) {
static struct option long_options[] = {
{"debug", no_argument, 0, 'd'},
{"help", no_argument, 0, 'h'},
{0, 0, 0, 0 }
{"debug", no_argument, 0, 'd'},
{"cycles", required_argument, 0, 'c'},
{"fast", no_argument, 0, 'f'},
{"help", no_argument, 0, 'h'},
{0, 0, 0, 0 }
};
int opt;
int option_index = 0;
options->debug = 0;
options->fast = 0;
options->cycles = 0;
// Parse options
while ((opt = getopt_long(argc, argv, "dh", long_options, &option_index)) != -1) {
while ((opt = getopt_long(argc, argv, "dc:fh", long_options, &option_index)) != -1) {
switch (opt) {
case 'd':
return 1;
break;
options->debug = 1;
break;
case 'c': {
// The count has to be a plain positive number. Anything else is
// almost certainly a mistyped command line rather than a request
// to run zero cycles.
char *end;
long value = strtol(optarg, &end, 10);
if (*end != '\0' || value <= 0) {
fprintf(stderr, "Error: --cycles needs a positive number, not \"%s\".\n", optarg);
return OPTIONS_ERROR;
}
options->cycles = (unsigned long)value;
}
break;
case 'f':
options->fast = 1;
break;
case 'h':
printHelp(argv[0]);
return 2;
case '?':
printHelp(argv[0]);
return 2;
return OPTIONS_HELP;
default:
printHelp(argv[0]);
return 2;
return OPTIONS_ERROR;
}
}
return 0;
return OPTIONS_OK;
}
void printRegisters(CPURegisters *cpu, uint8_t *Program, uint8_t *Data) {
printf("***** CPU Registers *****\n");
printf("A: 0x%02X\tB: 0x%02X\tQ: 0x%02X\tStatus: 0b%08b\n", cpu->A, cpu->B, cpu->Q, cpu->Status);
printf("Program Counter: 0x%04X Current Instruction: 0x%02X (%s)\n", cpu->ProgramCounter, Program[cpu->ProgramCounter],getMnemonic(Program[cpu->ProgramCounter]));
printf(" Data Pointer: 0x%04X Current Data Value: 0x%02X\n", cpu->DataPointer, Data[cpu->DataPointer]);
printf(" Data Pointer: 0x%04X Current Data Value: 0x%02X\n", cpu->DataPointer[0], Data[cpu->DataPointer[0]]);
printf(" Stack Pointer: 0x%04X Current Value: (0x%02X) (0x%02X)\n", cpu->StackPointer, Data[cpu->StackPointer+1], Data[cpu->StackPointer+2]);
}