z80/main.cpp

#include <stdint.h>
#include <stdio.h>
#include "z80.h"
#include "z80dis.h"
#include "z80debug.h"
#include "zxscreen.h"
#include <SDL2/SDL.h>
#include <string.h>

uint8_t memory[65536];
uint32_t t = 0;

int ula_in()
{
    return 0;
}

void ula_out(int val)
{

}

int main(int argc, char *argv[])
{
    FILE* f = fopen("48.rom", "rb");
    fread(memory, 1024, 16, f);
    fclose(f);
    
    z80::reset(memory);
    z80::connect_port(0xfe, ula_in, ula_out);

    SDL_Init(SDL_INIT_EVERYTHING);
    z80debug::show();
    zxscreen::show();

    bool should_exit = false;
    SDL_Event e;

    while (!should_exit)
    {
        while (SDL_PollEvent(&e))
        {
            if (e.type == SDL_QUIT) { should_exit=true; break; }
            if (z80debug::debugging()) {
                if (e.type == SDL_KEYDOWN) {
                    if (e.key.keysym.scancode==SDL_SCANCODE_ESCAPE) {
                        should_exit=true; break;
                    } else if (e.key.keysym.scancode==SDL_SCANCODE_F10) {
                        t += z80::step();
                        if (t>=69888) { t=0; z80::interrupt(); }
                        z80debug::refresh();
                        zxscreen::refresh();
                    } else if (e.key.keysym.scancode==SDL_SCANCODE_F5) {
                        z80::step();
                        z80debug::cont();
                        zxscreen::refresh();
                    } else if (e.key.keysym.scancode==SDL_SCANCODE_RETURN) {
                        z80debug::executeConsole();
                    } else if (e.key.keysym.scancode==SDL_SCANCODE_BACKSPACE) {
                        z80debug::DeleteCharConsole();
                    }
                }
                if (e.type == SDL_TEXTINPUT) {
                    z80debug::sendToConsole(e.text.text);
                }
            } else {
                if (e.type == SDL_KEYDOWN) {
                    if (e.key.keysym.scancode==SDL_SCANCODE_F8) {
                        z80debug::stop();
                        zxscreen::refresh();
                    }
                }
            }
        }
        if (!z80debug::debugging()) {
            if (z80debug::isbreak(z80::getPC())) {
                z80debug::stop();
                zxscreen::refresh();
            } else {
                t += z80::step();
                if (t>=69888) {
                    t=0;
                    zxscreen::refresh();
                    z80::interrupt();
                }
            }
        }
    }

    return 0;
}