729ff6f503
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22215 a1c6a512-1295-4272-9138-f99709370657
99 lines
2 KiB
C
99 lines
2 KiB
C
#include "rockmacros.h"
|
|
#include "defs.h"
|
|
#include "regs.h"
|
|
#include "hw.h"
|
|
#include "cpu-gb.h"
|
|
#include "mem.h"
|
|
#include "lcd-gb.h"
|
|
#include "sound.h"
|
|
#include "rtc-gb.h"
|
|
#include "pcm.h"
|
|
|
|
/*
|
|
* 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();
|
|
}
|
|
|
|
static 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)
|
|
{
|
|
int framesin=0,frames=0,timeten=*rb->current_tick, timehun=*rb->current_tick;
|
|
|
|
setvidmode();
|
|
vid_begin();
|
|
lcd_begin();
|
|
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
|
|
rb->cpu_boost(true);
|
|
#endif
|
|
#ifdef HAVE_LCD_COLOR
|
|
set_pal();
|
|
#endif
|
|
|
|
while(!shut)
|
|
{
|
|
cpu_emulate(2280);
|
|
while (R_LY > 0 && R_LY < 144)
|
|
emu_step();
|
|
|
|
rtc_tick();
|
|
|
|
if (options.sound || !plugbuf)
|
|
{
|
|
sound_mix();
|
|
pcm_submit();
|
|
}
|
|
|
|
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>=10)
|
|
{
|
|
timeten=*rb->current_tick;
|
|
if(framesin<6) options.frameskip++;
|
|
if(framesin>6) 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
|
|
}
|