emu.c

#include "defs.h"
#include "regs.h"
#include "hw.h"
#include "cpu.h"
#include "mem.h"
#include "lcd.h"
#include "rc.h"




static int framelen = 16743;
static int framecount;

rcvar_t emu_exports[] =
{
	RCV_INT("framelen", &framelen),
	RCV_INT("framecount", &framecount),
	RCV_END
};







void emu_init()
{

}


/*
 * emu_reset is called to initialize the state of the emulated
 * system. It should set cpu registers, hardware registers, etc. to
 * their appropriate values at powerup time.
 */

void emu_reset()
{
	hw_reset();
	lcd_reset();
	cpu_reset();
	mbc_reset();
	sound_reset();
}





void emu_step()
{
	cpu_emulate(cpu.lcdc);
}



/* This mess needs to be moved to another module; it's just here to
 * make things work in the mean time. */

void *sys_timer();

extern int emu_running; //gp32

void emu_doframe(void)
{
#if 0
	cpu_emulate(2280);

		while (R_LY > 0 && R_LY < 144)
			emu_step();


		vid_end();

		rtc_tick();

/*
              sound_mix();
              if (!pcm_submit())
		{
                     delay = framelen - sys_elapsed(timer);
			sys_sleep(delay);
			sys_elapsed(timer);
		}
*/

              doevents();

		vid_begin();
//              if (framecount) { if (!--framecount) die("finished\n"); }

		if (!(R_LCDC & 0x80))
;//			cpu_emulate(32832);

//		while (R_LY > 0) /* wait for next frame */
//			emu_step();
#else
		cpu_emulate(2280);
		while (R_LY > 0 && R_LY < 144)
			emu_step();

		//vid_end();
		rtc_tick();
		/*sound_mix();
		if (!pcm_submit())
		{
			delay = framelen - sys_elapsed(timer);
			sys_sleep(delay);
			sys_elapsed(timer);
		}*/
		//doevents();
		//vid_begin();
		//if (framecount) { if (!--framecount) die("finished\n"); }

		if (!(R_LCDC & 0x80))
			cpu_emulate(32832);

		while (R_LY > 0) /* wait for next frame */
			emu_step();
#endif
}

void emu_run()
{
	//void *timer = sys_timer();
	int delay;

	//vid_begin();
	lcd_begin();

/*       while(emu_running)
	{
		emu_doframe();
	}*/
}