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#include "rockmacros.h"
#include "defs.h"
#include "regs.h"
#include "hw.h"
#include "cpu-gb.h"
#include "mem.h"
#include "lcd-gb.h"
#include "rc.h"
#include "sound.h"
#include "rtc-gb.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(void)
{
}
/*
* 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(void)
{
hw_reset();
lcd_reset();
cpu_reset();
mbc_reset();
sound_reset();
}
void emu_step(void)
{
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 emu_run(void)
{
void *timer = sys_timer();
int delay;
vid_begin();
lcd_begin();
#if !defined(SIMULATOR) && defined(HAVE_ADJUSTABLE_CPU_FREQ)
rb->cpu_boost(true);
#endif
while(!shut)
{
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();
rb->yield();
}
#if !defined(SIMULATOR) && defined(HAVE_ADJUSTABLE_CPU_FREQ)
rb->cpu_boost(false);
#endif
}
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