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various bits.. f4 vram viewer ;-)

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This commit is contained in:
David Haywood 2013-03-01 01:53:11 +00:00
parent b5c2387e61
commit 8dfc02dabf
1 changed files with 31 additions and 24 deletions
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55
src/mame/drivers/gunpey.c
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@ -220,6 +220,8 @@ public:
TIMER_DEVICE_CALLBACK_MEMBER(gunpey_scanline);
void gunpey_irq_check(UINT8 irq_type);
UINT16 m_vram_bank;
UINT16 main_vram[0x800][0x800];
};
@ -398,8 +400,10 @@ WRITE8_MEMBER(gunpey_state::gunpey_blitter_w)
{
// UINT16 *blit_buffer = m_blit_buffer;
UINT16 *blit_ram = m_blit_ram;
// UINT8 *blit_rom = memregion("blit_data")->base();
// int x,y;
UINT8 *blit_rom = memregion("blit_data")->base();
UINT8 *vram = memregion("vram")->base();
// int x,y;
//printf("gunpey_blitter_w offset %01x data %02x\n", offset,data);
@ -415,35 +419,36 @@ WRITE8_MEMBER(gunpey_state::gunpey_blitter_w)
int ysize = blit_ram[0x0e]+1;
// int color,color_offs;
printf("%04x %04x %04x %04x %02x %02x\n",srcx,srcy,dstx,dsty,xsize,ysize);
/*
printf("%02x %02x %02x %02x| (X SRC 4: %02x 5: %02x (val %04x)) (Y SRC 6: %02x 7: %02x (val %04x)) | (X DEST 8: %02x 9: %02x (val %04x)) (Y DEST a: %02x b: %02x (val %04x)) | %02x %02x %02x %02x\n"
,blit_ram[0],blit_ram[1],blit_ram[2],blit_ram[3]
,blit_ram[4],blit_ram[5], srcx
,blit_ram[6],blit_ram[7], srcy
,blit_ram[8],blit_ram[9], dstx
,blit_ram[0xa],blit_ram[0xb], dsty
,blit_ram[0xc],
blit_ram[0xd],blit_ram[0xe],blit_ram[0xf]);
*/
//if (srcx & 0xf800) printf("(error srcx &0xf800)");
//if (srcy & 0xf800) printf("(error srcy &0xf800)");
gunpey_irq_check(4);
#if 0
if(blit_ram[0x01] == 8) //1bpp?
for (int y=0;y<ysize;y++)
{
// ...
}
else //4bpp
{
for(y=0;y<ysize;y++)
for (int x=0;x<xsize;x++)
{
for(x=0;x<xsize;x+=2)
{
UINT32 src_index = ((srcy+y)*2048+(srcx+x)) & 0x3fffff;
UINT32 dst_index = ((dsty+y)*512+(dstx+x)) & 0x3ffff;
color_offs = ((blit_rom[src_index] & 0xf0)>>4) + 0x10;
color = (blit_rom[color_offs*2+0x3B1DFD]) | (blit_rom[color_offs*2+0x3B1DFD+1]<<8);
blit_buffer[dst_index+1] = color;
color_offs = ((blit_rom[src_index] & 0xf)>>0) + 0x10;
color = (blit_rom[color_offs*2+0x3B1DFD]) | (blit_rom[color_offs*2+0x3B1DFD+1]<<8);
blit_buffer[dst_index] = color;
}
vram[(((dsty+y)&0x7ff)*0x800)+((dstx+x)&0x7ff)] = blit_rom[(((srcy+y)&0x7ff)*0x800)+((srcx+x)&0x7ff)];
}
}
#endif
/*
printf("%02x %02x %02x %02x|%02x %02x %02x %02x|%02x %02x %02x %02x|%02x %02x %02x %02x\n"
,blit_ram[0],blit_ram[1],blit_ram[2],blit_ram[3]
@ -652,6 +657,7 @@ static GFXLAYOUT_RAW( gunpey, 2048, 1, 2048*8, 2048*8 )
static GFXDECODE_START( gunpey )
GFXDECODE_ENTRY( "blit_data", 0, gunpey, 0x0000, 0x1 )
GFXDECODE_ENTRY( "fakerom", 0x18000, fake_layout, 0x0, 2 )
GFXDECODE_ENTRY( "vram", 0, gunpey, 0x0000, 0x1 )
GFXDECODE_END
@ -700,6 +706,7 @@ ROM_START( gunpey )
ROM_REGION( 0x400000, "blit_data", 0 )
ROM_LOAD( "gp_rom3.025", 0x00000, 0x400000, CRC(f2d1f9f0) SHA1(0d20301fd33892074508b9d127456eae80cc3a1c) )
ROM_REGION( 0x400000, "vram", ROMREGION_ERASEFF )
ROM_REGION( 0x400000, "ymz", 0 )
ROM_LOAD( "gp_rom4.525", 0x000000, 0x400000, CRC(78dd1521) SHA1(91d2046c60e3db348f29f776def02e3ef889f2c1) ) // 11xxxxxxxxxxxxxxxxxxxx = 0xFF