MESS SVN History

15994 Revisions

r2170 Sunday 30th March, 2008 at 17:44:20 UTC by Dirk Best
[COUPE] LPEN and HPEN register emulation, fixes ESIStarDemo (and probably others)

src/mess/includes/coupe.h
r2169	r2170
43	43	extern UINT8 SOUND_ADDR; /* Current Address in sound registers */
44	44	extern UINT8 SOUND_REG[32]; /* 32 sound registers */
45	45	extern UINT8 LINE_INT; /* Line interrupt register */
46		extern UINT8 LPEN,HPEN; /* ??? */
47	46	extern UINT8 STAT; /* returned when port 249 read */
48	47
49	48	void coupe_update_memory(void);

src/mess/video/coupe.c
r2169	r2170
162	162	{
163	163	int scanline = video_screen_get_vpos(screen);
164	164
165		HPEN = scanline;
166
167	165	/* line interrupt? */
168	166	if (LINE_INT == scanline) coupe_irq(screen->machine, 0x01);
169	167

src/mess/drivers/coupe.c
r2169	r2170
80	80	return SOUND_ADDR;
81	81
82	82	if (offset==HPEN_PORT)
83		return HPEN;
	83	{
	84	/* return either the current line or 192 for the vblank area */
	85	int line = video_screen_get_vpos(machine->primary_screen);
	86	return video_screen_get_vblank(machine->primary_screen) ? 192 : line;
	87	}
84	88
85	89	switch (offset & 0xFF)
86	90	{
r2169	r2170
101	105	wd17xx_set_side((offset >> 2) & 1);
102	106	return wd17xx_data_r(machine, 0);
103	107	case LPEN_PORT:
104		return ~~LPEN~~;
	108	return video_screen_get_hpos(machine->primary_screen) & 0xfc;
105	109	case STAT_PORT:
106	110	return ((getSamKey2((offset >> 8)&0xFF))&0xE0) \| STAT;
107	111	case LMPR_PORT:

15994 Revisions