MAME SVN History

199869 Revisions

r20045 Thursday 3rd January, 2013 at 20:37:18 UTC by David Haywood
Use the upper tile attribute bits from the next row on Grasspin? (nw) (yes, this seems like utter lunacy but it's the ONLY way I can see this working. The CPU comms problem in transferring the dipswitches remains)

[src/mame/drivers]	blueprnt.c
[src/mame/video]	blueprnt.c

trunk/src/mame/drivers/blueprnt.c
r20044	r20045
96	96	AM_RANGE(0xc003, 0xc003) AM_READ(blueprnt_sh_dipsw_r)
97	97	AM_RANGE(0xd000, 0xd000) AM_WRITE(blueprnt_sound_command_w)
98	98	AM_RANGE(0xe000, 0xe000) AM_READ(watchdog_reset_r) AM_WRITE(blueprnt_flipscreen_w)
99		AM_RANGE(0xf000, 0xf3ff) AM_RAM_WRITE(blueprnt_colorram_w) AM_SHARE("colorram")
100		AM_RANGE(0xf400, 0xf7ff) AM_RAM // mirror?
	99	AM_RANGE(0xf000, 0xf3ff) AM_RAM_WRITE(blueprnt_colorram_w) AM_MIRROR(0x400) AM_SHARE("colorram")
101	100	ADDRESS_MAP_END
102	101
103	102	static ADDRESS_MAP_START( sound_map, AS_PROGRAM, 8, blueprnt_state )

trunk/src/mame/video/blueprnt.c
r20044	r20045
58	58
59	59	m_colorram[offset] = data;
60	60	m_bg_tilemap->mark_tile_dirty(offset);
	61
	62	offset+=32;
	63	offset &=0x3ff;
	64	m_bg_tilemap->mark_tile_dirty(offset);
61	65	}
62	66
63	67	WRITE8_MEMBER(blueprnt_state::blueprnt_flipscreen_w)
r20044	r20045
87	91	// or flipscreen after startup... this certainly doesn't work for 'Saturn'
88	92	TILE_GET_INFO_MEMBER(blueprnt_state::get_bg_tile_info_grasspin)
89	93	{
90		int attr = m_colorram[tile_index];
	94	int attr = m_colorram[tile_index] & 0x3f;
	95	attr \|= m_colorram[(tile_index+32)&0x3ff] & 0xc0; // from the next row?
	96
	97
91	98	int code = m_videoram[tile_index];
	99
	100
92	101	int color = attr & 0x7f;
93	102
94	103	tileinfo.category = (attr & 0x80) ? 1 : 0;
95	104
96		if (!(attr & 0x10)) code += m_gfx_bank * 0x100;
	105	if ((attr & 0x40)) code += m_gfx_bank * 0x100;
97	106	else code &=0xff;
98	107
99	108	SET_TILE_INFO_MEMBER(0, code, color, 0);

199869 Revisions