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added logging

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Lauchmelder 2021-10-22 17:49:20 +02:00
parent 0f62079193
commit f872e19707
6 changed files with 341 additions and 268 deletions
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44
NES Emulator/log.c Normal file
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#include "log.h"
#include <stdio.h>
#include "bus.h"
#include "cpu.h"
void logBusState(struct Bus* bus)
{
const char buffer[32];
Word oldPC = bus->cpu->pc - bus->cpu->currentOpcode->length;
printf("%04X ", oldPC);
Word instructionBytes[3];
for (int i = 0; i < bus->cpu->currentOpcode->length; i++)
{
instructionBytes[i] = readBus(bus, oldPC + i);
sprintf(buffer + 3 * i, "%02X ", instructionBytes[i]);
}
printf("%-10s%s ", buffer, bus->cpu->currentOpcode->str);
switch (bus->cpu->currentOpcode->addr)
{
case ACC: sprintf(buffer, "A"); break;
case ABS: sprintf(buffer, "$%04X", bus->cpu->fetchedAddress); break;
case ABX: sprintf(buffer, "$%04X, X -> $%04X", (instructionBytes[2] << 8) | instructionBytes[1], bus->cpu->fetchedAddress); break;
case ABY: sprintf(buffer, "$%04X, Y -> $%04X", (instructionBytes[2] << 8) | instructionBytes[1], bus->cpu->fetchedAddress); break;
case IMM: sprintf(buffer, "#$%04X", bus->cpu->fetchedVal); break;
case IMP: sprintf(buffer, ""); break;
case IND: sprintf(buffer, "($%04X) -> $%04x", (instructionBytes[2] << 8) | instructionBytes[1], bus->cpu->fetchedAddress); break;
case INDX: sprintf(buffer, "($%04X, X) -> $%04x", (instructionBytes[2] << 8) | instructionBytes[1], bus->cpu->fetchedAddress); break;
case INDY: sprintf(buffer, "($%04X), Y -> $%04x", (instructionBytes[2] << 8) | instructionBytes[1], bus->cpu->fetchedAddress); break;
case REL: sprintf(buffer, "$%02X", bus->cpu->fetchedRelAddress); break;
case ZPG: sprintf(buffer, "$%02X", bus->cpu->fetchedAddress); break;
case ZPX: sprintf(buffer, "$%02X, X -> $%02X", instructionBytes[1], bus->cpu->fetchedAddress); break;
case ZPY: sprintf(buffer, "$%02X, Y -> $%02X", instructionBytes[1], bus->cpu->fetchedAddress); break;
}
printf("%-28s", buffer);
printf("A:%02X X:%02X Y:%02X SP:%02X P:%02X CYC:%zu\n", bus->cpu->acc, bus->cpu->x, bus->cpu->y, bus->cpu->sp, bus->cpu->status.raw, bus->cpu->totalCycles);
}