zodttd / gameboy4iphone
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Description: A Nintendo Gameboy and Gameboy Color emulator for the Apple iPhone and iPod Touch.
Homepage: http://www.zodttd.com
Clone URL: git://github.com/zodttd/gameboy4iphone.git
Click here to lend your support to: gameboy4iphone and make a donation at www.pledgie.com !
gameboy4iphone / fastmem.c
100644 55 lines (42 sloc) 1.52 kb
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#include "fastmem.h"
 
 
#define D 0 /* direct */
#define C 1 /* direct cgb-only */
#define R 2 /* io register */
#define S 3 /* sound register */
#define W 4 /* wave pattern */
 
#define F 0xFF /* fail */
 
const byte himask[256];
 
const byte hi_rmap[256] =
{
	0, 0, R, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	S, S, S, S, S, S, S, S, S, S, S, S, S, S, S, S,
	S, S, S, S, S, S, S, S, S, S, S, S, S, S, S, S,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, C, 0, C,
	0, C, C, C, C, C, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, C, C, C, C, 0, 0, 0, 0,
	C, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
 
const byte hi_wmap[256] =
{
	R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R,
	S, S, S, S, S, S, S, S, S, S, S, S, S, S, S, S,
	S, S, S, S, S, S, S, S, S, S, S, S, S, S, S, S,
	S, S, S, S, S, S, S, S, S, S, S, S, S, S, S, S,
	R, R, R, R, R, R, R, R, R, R, R, R, 0, R, 0, R,
	0, C, C, C, C, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, R, R, R, R, 0, 0, 0, 0,
	R, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, R
};
 
 
void sound_write();
static void no_write()
{
}