nickorlow/yayacemu
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This commit is contained in:
Nicholas Orlowsky 2024-04-07 23:39:15 -05:00
parent fdd6553f11
commit f2c0935b60
Signed by: nickorlow
GPG key ID: 838827D8C4611687
128 changed files with 39530 additions and 530 deletions
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40
yayacemu.cpp
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@ -12,13 +12,11 @@
#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
#define EMULATION_HZ 2000
#define EMULATION_HZ 10000
FILE *rom_file;
SDL_Window *window;
SDL_Renderer *renderer;
SDL_Texture *texture;
char *rom_name;
void init_screen() {
SDL_Init(SDL_INIT_EVERYTHING);
@ -58,27 +56,6 @@ void draw_screen(const svLogicVecVal *vram) {
std::cout << "INF_EMU: Drawing Frame" << '\n';
}
int load_rom() {
std::cout << "INF_EMU: Loading ROM " << rom_name << '\n';
rom_file = fopen(rom_name, "r");
if (rom_file == NULL) {
std::cout << "INF_EMU: Error reading ROM file. Panicing." << '\n';
exit(1);
}
fseek(rom_file, 0L, SEEK_END);
int rom_size = ftell(rom_file);
fseek(rom_file, 0L, SEEK_SET);
std::cout << "INF_EMU: ROM size is %d bytes " << rom_size << '\n';
return rom_size;
}
svBitVecVal get_next_instr() { return (uint8_t)fgetc(rom_file); }
void close_rom() { fclose(rom_file); }
svBitVecVal get_key() {
SDL_Event event;
uint8_t down = 0;
@ -133,24 +110,19 @@ svBitVecVal get_key() {
}
int main(int argc, char **argv) {
if (argc < 2) {
std::cout << "Use: yayacemu [ROM_NAME]" << '\n';
exit(1);
}
rom_name = argv[1];
VerilatedContext *contextp = new VerilatedContext;
contextp->commandArgs(argc, argv);
Vchip8 *dut = new Vchip8{contextp};
dut->rst_in = 1;
dut->rst_in = 0;
dut->fpga_clk = 1;
while (true) {
dut->clk_in ^= 1;
dut->fpga_clk ^= 1;
dut->eval();
dut->rst_in = 0;
usleep(1000000 / EMULATION_HZ);
if (SDL_QuitRequested()) {
std::cout << "INF_EMU: Received Quit from SDL. Goodbye!" << '\n';
break;