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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);
}
struct options options;
/* This mess needs to be moved to another module; it's just here to
* make things work in the mean time. */
//extern struct plugin_api* rb;
void emu_run(void)
{
// void *timer = sys_timer();
int framesin=0,frames=0,timeten=*rb->current_tick, timehun=*rb->current_tick;
// int delay;
vid_begin();
lcd_begin();
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
rb->cpu_boost(true);
#endif
while(!shut)
{
cpu_emulate(2280);
while (R_LY > 0 && R_LY < 144)
emu_step();
rtc_tick();
sound_mix();
if (!pcm_submit())
{
/* delay = framelen - sys_elapsed(timer);
sys_sleep(delay);
sys_elapsed(timer);*/
}
doevents();
vid_begin();
if (!(R_LCDC & 0x80))
cpu_emulate(32832);
while (R_LY > 0) /* wait for next frame */
emu_step();
rb->yield();
frames++;
framesin++;
if(*rb->current_tick-timeten>=20)
{
timeten=*rb->current_tick;
if(framesin<12) options.frameskip++;
if(framesin>12) options.frameskip--;
if(options.frameskip>options.maxskip) options.frameskip=options.maxskip;
if(options.frameskip<0) options.frameskip=0;
framesin=0;
}
if(options.showstats)
{
if(*rb->current_tick-timehun>=100) {
options.fps=frames;
frames=0;
timehun=*rb->current_tick;
}
}
}
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
rb->cpu_boost(false);
#endif
}
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