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Interrupt system implemented, some new programs.

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This commit is contained in:
Anachronaut
2026-08-15 00:44:13 -04:00
parent 638b68b25c
commit 6d1966d500
79 changed files with 2778 additions and 88 deletions
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Source/Emulator/utility.c
+23 -3
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@@ -68,11 +68,31 @@ uint8_t parseOptions(int argc, char *argv[], EmulatorOptions *options) {
return OPTIONS_OK;
}
// Writes a byte out as eight binary digits, most significant first. printf's %b is
// a recent addition to C and not available everywhere, so this does it by hand.
// The buffer must have room for nine characters.
static void formatBinary(uint8_t value, char *out) {
for (int i = 0; i < 8; i++) {
out[i] = (value & (0x80 >> i)) ? '1' : '0';
}
out[8] = '\0';
}
void printRegisters(CPURegisters *cpu, uint8_t *Program, uint8_t *Data) {
char status[9];
formatBinary(cpu->Status, status);
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("A: 0x%02X\tB: 0x%02X\tQ: 0x%02X\tStatus: 0b%s\n", cpu->A, cpu->B, cpu->Q, 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[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]);
for (int i = 0; i < DATA_POINTERS; i++) {
printf(" Data Pointer %d: 0x%04X Current Data Value: 0x%02X%s\n",
i, cpu->DataPointer[i], Data[cpu->DataPointer[i]],
i >= PRESERVED_DATA_POINTERS ? " (volatile)" : "");
}
// The two casts keep these inside Data Memory. The Stack Pointer starts at the
// very top, so without them the display would read off the end of the array
// before a single byte has been pushed.
printf(" Stack Pointer: 0x%04X Current Value: (0x%02X) (0x%02X)\n", cpu->StackPointer,
Data[(uint16_t)(cpu->StackPointer + 1)], Data[(uint16_t)(cpu->StackPointer + 2)]);
}