115 lines
1.4 KiB
C
115 lines
1.4 KiB
C
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#include "defs.h"
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#include "regs.h"
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#include "hw.h"
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#include "cpu.h"
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#include "mem.h"
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#include "lcd.h"
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#include "rc.h"
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#include "rtc.h"
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#include "sys.h"
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#include "sound.h"
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#include "cpu.h"
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static int framelen = 16743;
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static int framecount;
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rcvar_t emu_exports[] =
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{
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RCV_INT("framelen", &framelen),
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RCV_INT("framecount", &framecount),
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RCV_END
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};
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void emu_init()
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{
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}
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/*
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* emu_reset is called to initialize the state of the emulated
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* system. It should set cpu registers, hardware registers, etc. to
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* their appropriate values at powerup time.
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*/
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void emu_reset()
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{
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hw_reset();
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lcd_reset();
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cpu_reset();
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mbc_reset();
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sound_reset();
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}
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void emu_step()
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{
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cpu_emulate(cpu.lcdc);
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}
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/* This mess needs to be moved to another module; it's just here to
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* make things work in the mean time. */
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void *sys_timer();
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void emu_run()
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{
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void *timer = sys_timer();
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int delay;
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vid_begin();
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lcd_begin();
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for (;;)
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{
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cpu_emulate(2280);
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while (R_LY > 0 && R_LY < 144)
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emu_step();
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vid_end();
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rtc_tick();
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sound_mix();
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if (!pcm_submit())
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{
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delay = framelen - sys_elapsed(timer);
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sys_sleep(delay);
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sys_elapsed(timer);
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}
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doevents();
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vid_begin();
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if (framecount) { if (!--framecount) die("finished\n"); }
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if (!(R_LCDC & 0x80))
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cpu_emulate(32832);
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while (R_LY > 0) /* wait for next frame */
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emu_step();
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}
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}
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