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This commit is contained in:
Nicholas Orlowsky 2024-01-31 21:04:52 -06:00
parent e679a3ce68
commit f715709942
9 changed files with 550 additions and 469 deletions
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198
yayacemu.cpp
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@ -1,14 +1,14 @@
#include "svdpi.h"
#include "Vchip8__Dpi.h"
#include <iostream>
#include <memory.h>
#include "Vchip8.h"
#include "Vchip8__Dpi.h"
#include "svdpi.h"
#include "verilated.h"
#include <SDL2/SDL.h>
#include <SDL2/SDL_image.h>
#include <SDL2/SDL_quit.h>
#include <SDL2/SDL_timer.h>
#include <inttypes.h>
#include <iostream>
#include <memory.h>
#define SCREEN_WIDTH 64
#define SCREEN_HEIGHT 32
@ -18,34 +18,33 @@ FILE *rom_file;
SDL_Window *window;
SDL_Renderer *renderer;
SDL_Texture *texture;
char* rom_name;
char *rom_name;
void init_screen() {
SDL_Init(SDL_INIT_EVERYTHING);
window =
SDL_CreateWindow("Yet Another Yet Another Chip-8 Emulator", // creates a window
SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
SCREEN_WIDTH * 10, SCREEN_HEIGHT * 10, 0);
renderer =
SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
window = SDL_CreateWindow(
"Yet Another Yet Another Chip-8 Emulator", // creates a window
SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, SCREEN_WIDTH * 10,
SCREEN_HEIGHT * 10, 0);
renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
texture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_RGBA8888,
SDL_TEXTUREACCESS_STREAMING,
SCREEN_WIDTH, SCREEN_HEIGHT);
SDL_TEXTUREACCESS_STREAMING, SCREEN_WIDTH,
SCREEN_HEIGHT);
std::cout << "INF_EMU: Screen initialized" << '\n';
}
void set_beep(const svBit beep) {
if (beep == 1)
SDL_SetTextureColorMod(texture, 255, 0, 0);
SDL_SetTextureColorMod(texture, 255, 0, 0);
else
SDL_SetTextureColorMod(texture, 255, 255, 255);
SDL_SetTextureColorMod(texture, 255, 255, 255);
}
void draw_screen(const svLogicVecVal* vram) {
uint32_t *screen = (uint32_t*) malloc(SCREEN_WIDTH*SCREEN_HEIGHT*32);
for(int i = 0; i < SCREEN_WIDTH * SCREEN_HEIGHT; i++) {
screen[i] = vram[i].aval;
void draw_screen(const svLogicVecVal *vram) {
uint32_t *screen = (uint32_t *)malloc(SCREEN_WIDTH * SCREEN_HEIGHT * 32);
for (int i = 0; i < SCREEN_WIDTH * SCREEN_HEIGHT; i++) {
screen[i] = vram[i].aval;
}
SDL_UpdateTexture(texture, NULL, screen, sizeof(screen[0]) * SCREEN_WIDTH);
SDL_RenderClear(renderer);
@ -56,12 +55,12 @@ void draw_screen(const svLogicVecVal* vram) {
}
int load_rom() {
std::cout << "INF_EMU: Loading ROM " << rom_name << '\n';
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);
std::cout << "INF_EMU: Error reading ROM file. Panicing." << '\n';
exit(1);
}
fseek(rom_file, 0L, SEEK_END);
@ -72,93 +71,88 @@ int load_rom() {
return rom_size;
}
svBitVecVal get_next_instr() {
return (uint8_t) fgetc(rom_file);
}
svBitVecVal get_next_instr() { return (uint8_t)fgetc(rom_file); }
void close_rom() {
fclose(rom_file);
}
void close_rom() { fclose(rom_file); }
svBitVecVal get_key() {
SDL_Event event;
uint8_t down = 0;
SDL_Event event;
uint8_t down = 0;
while(SDL_PollEvent(&event)) {
switch(event.type) {
case SDL_KEYDOWN:
down = 128;
case SDL_KEYUP:
switch(event.key.keysym.sym) {
case SDLK_0:
return down | (uint8_t) 0;
case SDLK_1:
return down | (uint8_t) 1;
case SDLK_2:
return down | (uint8_t) 2;
case SDLK_3:
return down | (uint8_t) 3;
case SDLK_4:
return down | (uint8_t) 4;
case SDLK_5:
return down | (uint8_t) 5;
case SDLK_6:
return down | (uint8_t) 6;
case SDLK_7:
return down | (uint8_t) 7;
case SDLK_8:
return down | (uint8_t) 8;
case SDLK_9:
return down | (uint8_t) 9;
case SDLK_a:
return down | (uint8_t) 10;
case SDLK_b:
return down | (uint8_t) 11;
case SDLK_c:
return down | (uint8_t) 12;
case SDLK_d:
return down | (uint8_t) 13;
case SDLK_e:
return down | (uint8_t) 14;
case SDLK_f:
return down | (uint8_t) 15;
default:
return 255;
}
default:
return 255;
}
while (SDL_PollEvent(&event)) {
switch (event.type) {
case SDL_KEYDOWN:
down = 128;
case SDL_KEYUP:
switch (event.key.keysym.sym) {
case SDLK_0:
return down | (uint8_t)0;
case SDLK_1:
return down | (uint8_t)1;
case SDLK_2:
return down | (uint8_t)2;
case SDLK_3:
return down | (uint8_t)3;
case SDLK_4:
return down | (uint8_t)4;
case SDLK_5:
return down | (uint8_t)5;
case SDLK_6:
return down | (uint8_t)6;
case SDLK_7:
return down | (uint8_t)7;
case SDLK_8:
return down | (uint8_t)8;
case SDLK_9:
return down | (uint8_t)9;
case SDLK_a:
return down | (uint8_t)10;
case SDLK_b:
return down | (uint8_t)11;
case SDLK_c:
return down | (uint8_t)12;
case SDLK_d:
return down | (uint8_t)13;
case SDLK_e:
return down | (uint8_t)14;
case SDLK_f:
return down | (uint8_t)15;
default:
return 255;
}
default:
return 255;
}
return 255;
}
return 255;
}
int main(int argc, char** argv) {
if (argc < 2) {
std::cout << "Use: yayacemu [ROM_NAME]" << '\n';
exit(1);
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};
while (true) {
dut->clk_in ^= 1;
dut->eval();
usleep(1000000 / EMULATION_HZ);
if (SDL_QuitRequested()) {
std::cout << "INF_EMU: Received Quit from SDL. Goodbye!" << '\n';
break;
}
}
rom_name = argv[1];
VerilatedContext* contextp = new VerilatedContext;
contextp->commandArgs(argc, argv);
Vchip8* dut = new Vchip8{contextp};
while (true) {
dut->clk_in ^= 1;
dut->eval();
usleep(1000000/EMULATION_HZ);
if (SDL_QuitRequested()) {
std::cout << "INF_EMU: Received Quit from SDL. Goodbye!" << '\n';
break;
}
}
fflush(stdout);
delete dut;
delete contextp;
return 0;
fflush(stdout);
delete dut;
delete contextp;
return 0;
}