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emulator shell

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jborza 2019-04-13 22:00:37 +02:00
parent f248625163
commit c23477e32c
4 changed files with 200 additions and 0 deletions
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17
cpu.c Normal file
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#include "state.h"
#include "cpu.h"
void* unimplemented_instruction(State6502* state) {
printf("Error: unimplemented instruction\n");
exit(1);
}
int emulate_6502_op(State6502* state) {
byte* opcode = &state->memory[state->pc];
switch (*opcode) {
//...
default:unimplemented_instruction(state); break;
}
state->pc += 1;
return 0;
}

5
cpu.h Normal file
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#pragma once
#include "types.h"
void* unimplemented_instruction(State6502* state);
int emulate_6502_op(State6502* state);

13
emu6502.c Normal file
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// emu6502.cpp : This file contains the 'main' function. Program execution begins and ends there.
//
#include <stdio.h>
#include "state.h"
#include "cpu.h"
int main()
{
printf("Hello World!\n");
State6502 state;
emulate_6502_op(&state);
}

165
emu6502.vcxproj Normal file
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<ProjectGuid>{DA763E7C-CD88-4DE0-824E-39C7290F69E3}</ProjectGuid>
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