164 lines
3.1 KiB
C
164 lines
3.1 KiB
C
#include <emu.h>
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#include <stdio.h>
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#include <cart.h>
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#include <cpu.h>
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#include <ui.h>
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#include <timer.h>
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#include <dma.h>
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#include <ppu.h>
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#include <audio.h>
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#include <cart.h>
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#include <debug.h>
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#include <serial.h>
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#ifdef _WIN32
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#include <windows.h>
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#else
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#include <pthread.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#endif
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static emu_context ctx;
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#ifdef __windows__
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static HANDLE thread;
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#else
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static pthread_t thread;
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#endif
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emu_context *emu_get_context() {
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return &ctx;
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}
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#ifdef _WIN32
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DWORD WINAPI cpu_run(void *p) {
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#else
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void *cpu_run(void *p) {
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#endif
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ctx.running = true;
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ctx.paused = false;
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ctx.ticks = 0;
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while (ctx.running) {
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//if (ctx.paused) {
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// delay(10);
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// continue;
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//}
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if (!cpu_step()) {
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printf("CPU stopped\n");
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return 0;
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}
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}
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return 0;
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}
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void sleep_ms(int milis) {
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#ifdef _WIN32
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Sleep(milis);
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#else
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usleep(milis * 1000);
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#endif
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}
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void emu_stop() {
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ctx.running = false;
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#ifdef __windows__
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WaitForSingleObject(thread, INFINITE);
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#else
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pthread_join(thread, NULL);
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#endif
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}
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void emu_reset() {
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ppu_init();
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timer_init();
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cpu_init();
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audio_init();
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cart_init();
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serial_init();
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}
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void emu_start() {
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#ifdef __windows__
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thread = CreateThread(NULL, 0, cpu_run, NULL, 0, NULL);
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#else
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pthread_create(&thread, NULL, cpu_run, NULL);
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#endif
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if(!thread) {
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fprintf(stderr, "Unable to create main CPU thread!\n");
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}
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}
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int emu_run(int argc, char **argv) {
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if (argc < 2) {
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printf("Usage: gbemu <rom_file>\n");
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return -1;
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}
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if(!cart_load(argv[1])) {
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printf("Failed to load ROM file: %s\n", argv[1]);
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return -2;
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}
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char fn[1048];
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#ifdef __windows__
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char *profile = getenv("USERPROFILE");
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sprintf(fn, "%s\\Documents\\gbemu", profile);
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CreateDirectory(fn, NULL);
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sprintf(fn, "%s\\Documents\\gbemu\\saves", profile);
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CreateDirectory(fn, NULL);
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sprintf(fn, "%s\\Documents\\gbemu\\states", profile);
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CreateDirectory(fn, NULL);
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#else
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char *profile = getenv("HOME");
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sprintf(fn, "%s/.config/gbemu", profile);
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mkdir(fn, 0755);
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sprintf(fn, "%s/.config/gbemu/saves", profile);
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mkdir(fn, 0755);
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sprintf(fn, "%s/.config/gbemu/states", profile);
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mkdir(fn, 0755);
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#endif
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printf("Cart loaded..\n");
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ctx.app_path = argv[0];
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ui_init();
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emu_reset();
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emu_start();
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u32 prev_frame = 0;
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debug_init();
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while(!ctx.die) {
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sleep_ms(1);
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ui_handle_events();
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//if (prev_frame != ppu_get_context()->current_frame) {
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ui_update();
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//}
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//prev_frame = ppu_get_context()->current_frame;
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if(ctx.debug) {
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debug_update();
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}
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}
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return 0;
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}
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void emu_cycles(int cpu_cycles) {
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if(emu_get_context()->paused && !emu_get_context()->step)
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return;
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for (int i = 0; i < cpu_cycles; i++){
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for(int n = 0; n < 4; n++){
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ctx.ticks++;
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timer_tick();
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ppu_tick();
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}
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dma_tick();
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}
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}
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