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fix missing y source bits

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This commit is contained in:
David Haywood 2013-03-01 17:26:12 +00:00
parent f279b45ce4
commit fd899822a8
1 changed files with 10 additions and 17 deletions
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27
src/mame/drivers/gunpey.c
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@ -240,7 +240,7 @@ UINT8 gunpey_state::draw_gfx(running_machine &machine, bitmap_ind16 &bitmap,cons
UINT8 *vram = memregion("vram")->base();
// +0 +1 +2 +3 +4 +5 +6 +7
// cccc cccc e--b b--- | xxxx ---- u--- ---- | yyyy ---- --XX XXXX | nnnn nnnn ---Y YYYY | mmmm mmmm -MMM -NNN | hhhh hhhh wwww wwww | ---- ---- ---- ---- | ---- ---- ---- ---- |
// cccc cccc e--b b--- | xxxx ---- u--- ---- | yyyy yy-- --XX XXXX | nnnn nnnn ---Y YYYY | mmmm mmmm -MMM -NNN | hhhh hhhh wwww wwww | ---- ---- ---- ---- | ---- ---- ---- ---- |
// c = color palette
// e = END marker
@ -273,13 +273,13 @@ UINT8 gunpey_state::draw_gfx(running_machine &machine, bitmap_ind16 &bitmap,cons
//UINT32 col = 0xffffff;
// UINT32 val = (m_wram[count+1] << 16) | ((m_wram[count+2]));
int xsource = ((m_wram[count+2] & 0x003f) << 4) | ((m_wram[count+1] & 0xf000) >> 12);
int ysource = ((m_wram[count+3] & 0x001f) << 4) | ((m_wram[count+2] & 0xf000) >> 12);
int ysource = ((m_wram[count+3] & 0x001f) << 6) | ((m_wram[count+2] & 0xfc00) >> 10);
//printf("%08x %04x %04x\n", val, m_wram[count+1],m_wram[count+2] );
// UINT16 xsource = (m_wram[count+2] & 0x00ff << 4) | (m_wram[count+1] & 0xf000 >> 12);
//xsource<<=1;
xsource<<=1;
ysource <<=2;
// ysource <<=2;
UINT8 testhack = vram[((((ysource+0)&0x7ff)*0x800) + ((xsource+0)&0x7ff))];
UINT8 testhack2 = vram[((((ysource+0)&0x7ff)*0x800) + ((xsource+1)&0x7ff))];
@ -289,7 +289,10 @@ UINT8 gunpey_state::draw_gfx(running_machine &machine, bitmap_ind16 &bitmap,cons
printf("sprite %04x %04x %04x %04x %04x %04x %04x %04x\n", m_wram[count+0], m_wram[count+1], m_wram[count+2], m_wram[count+3], m_wram[count+4], m_wram[count+5], m_wram[count+6], m_wram[count+7]);
printf("unused %04x %04x %04x %04x %04x %04x %04x %04x\n\n", m_wram[count+0]&~0xff98, m_wram[count+1]&~0xf080, m_wram[count+2]&~0xfc3f, m_wram[count+3]&~0xf01f, m_wram[count+4]&~0xff77, m_wram[count+5]&~0xffff, m_wram[count+6]&~0x0000, m_wram[count+7]&~0x0000);
if ((testhack2 & 0x0f) == 0x08)
return m_wram[count+0] & 0x80;
@ -687,33 +690,23 @@ TIMER_DEVICE_CALLBACK_MEMBER(gunpey_state::gunpey_scanline)
int scanline = param;
if(scanline == 224)
{
printf("frame\n");
gunpey_irq_check(0x50);
}
}
static const gfx_layout fake_layout =
{
8,8,
RGN_FRAC(1,4),
4,
{ 0,1,2,3 },
{ 0*4,1*4,2*4,3*4,4*4,5*4,6*4,7*4 },
{ 0*32,1*32,2*32,3*32,4*32,5*32,6*32,7*32},
8*32
};
// this isn't a real decode as such, but the graphic data is all stored in pages 2048 bytes wide at varying BPP levelsl, some (BG data) compressed with what is likely a lossy scheme
// palette data is in here too, the blocks at the bottom right of all this?
static GFXLAYOUT_RAW( gunpey, 2048, 1, 2048*8, 2048*8 )
//static GFXLAYOUT_RAW( gunpey1024, 1024, 1, 1024*8, 1024*8 )
static GFXDECODE_START( gunpey )
GFXDECODE_ENTRY( "blit_data", 0, gunpey, 0x0000, 0x1 )
//GFXDECODE_ENTRY( "vram", 0, gunpey1024, 0x0000, 0x1 )
GFXDECODE_ENTRY( "vram", 0, gunpey, 0x0000, 0x1 )
GFXDECODE_END
@ -729,7 +722,7 @@ static MACHINE_CONFIG_START( gunpey, gunpey_state )
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_RAW_PARAMS(57242400/8, 442, 0, 320, 264, 0, 224) /* just to get ~60 Hz */
MCFG_SCREEN_RAW_PARAMS(57242400/8, 442, 0, 320, 264, 0, 240) /* just to get ~60 Hz */
MCFG_SCREEN_UPDATE_DRIVER(gunpey_state, screen_update_gunpey)
MCFG_PALETTE_LENGTH(0x10000)