#include <stdio.h>

#include "../../../vm/vm.h"
#undef true
#undef false

#include <stdio.h>
#include <string.h>
#include <SDL2/SDL.h>
#include <emscripten.h>
#include <emscripten/html5.h>

#define CODE_SIZE 8192
#define MEMORY_SIZE 65536
u8 lmem[MEMORY_SIZE] = {0};
u32 lcode[CODE_SIZE] = {0};

bool init_vm() {
  mem = lmem;
  memset(mem, 0, MEMORY_SIZE*sizeof(u8));
  code = lcode;
  mp = 0;
  cp = 0;
  pc = 0;
  interrupt = 0;  
  return true;
}

u32 syscall(u32 id, u32 args, u32 mem_ptr) {
  return 0; // success
}

void mainloop() {
  if (!step_vm()) {
    emscripten_cancel_main_loop();
    return;
  }
}

i32 main() {
  if (SDL_Init(SDL_INIT_VIDEO) < 0) {
    printf("SDL initialization failed: %s\n", SDL_GetError());
    return 1;
  }
  SDL_SetHint(SDL_HINT_TOUCH_MOUSE_EVENTS, "0");

  emscripten_set_canvas_element_size("#canvas", 640, 480);

  printf("VM loaded successfully\n");

  emscripten_set_main_loop(mainloop, 0, 1);
  return 0;
}