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02843: schaser, schasrcv, polaris: Only half the color RAM is emulated

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Hooked this up, verified from schematics. Does not apply to rollingc
as demonstrated by the lack of initialization of that RAM by the program
code.
This commit is contained in:
Aaron Giles 2009-01-29 09:21:16 +00:00
parent 6c7315b616
commit ac354ae99a
2 changed files with 7 additions and 7 deletions
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4
src/mame/drivers/8080bw.c
View File

@ -815,7 +815,7 @@ static ADDRESS_MAP_START( schaser_map, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x1fff) AM_ROM
AM_RANGE(0x2000, 0x3fff) AM_RAM AM_BASE(&mw8080bw_ram) AM_SIZE(&mw8080bw_ram_size)
AM_RANGE(0x4000, 0x5fff) AM_ROM
AM_RANGE(0xc000, 0xdfff) AM_MIRROR(0x00e0) AM_RAM AM_BASE(&c8080bw_colorram)
AM_RANGE(0xc000, 0xdfff) AM_MIRROR(0x0060) AM_RAM AM_BASE(&c8080bw_colorram)
ADDRESS_MAP_END
@ -1009,7 +1009,7 @@ static ADDRESS_MAP_START( sflush_map, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x801a, 0x801a) AM_WRITE(SMH_NOP)
AM_RANGE(0x801c, 0x801c) AM_WRITE(SMH_NOP)
AM_RANGE(0x801d, 0x801d) AM_WRITE(SMH_NOP)
AM_RANGE(0xa000, 0xbfff) AM_MIRROR(0x00e0) AM_RAM AM_BASE(&c8080bw_colorram)
AM_RANGE(0xa000, 0xbfff) AM_MIRROR(0x0060) AM_RAM AM_BASE(&c8080bw_colorram)
AM_RANGE(0xd800, 0xffff) AM_ROM
ADDRESS_MAP_END

10
src/mame/video/8080bw.c
View File

@ -217,7 +217,7 @@ VIDEO_UPDATE( schaser )
UINT8 x = offs << 3;
UINT8 data = mw8080bw_ram[offs];
UINT8 fore_color = c8080bw_colorram[offs & 0x1f1f] & 0x07;
UINT8 fore_color = c8080bw_colorram[offs & 0x1f9f] & 0x07;
if (!schaser_background_disable)
{
@ -252,7 +252,7 @@ VIDEO_UPDATE( schasrcv )
UINT8 x = offs << 3;
UINT8 data = mw8080bw_ram[offs];
UINT8 fore_color = c8080bw_colorram[offs & 0x1f1f] & 0x07;
UINT8 fore_color = c8080bw_colorram[offs & 0x1f9f] & 0x07;
/* blue background */
set_8_pixels(bitmap, y, x, data, pens, fore_color, 2);
@ -316,7 +316,7 @@ VIDEO_UPDATE( polaris )
bits 1 and 2 are marked 'not use' (sic) */
UINT8 back_color = (color_map_base[color_address] & 0x01) ? 6 : 2;
UINT8 fore_color = ~c8080bw_colorram[offs & 0x1f1f] & 0x07;
UINT8 fore_color = ~c8080bw_colorram[offs & 0x1f9f] & 0x07;
UINT8 cloud_y = y - polaris_get_cloud_pos();
@ -372,7 +372,7 @@ VIDEO_UPDATE( lupin3 )
UINT8 x = offs << 3;
UINT8 data = mw8080bw_ram[offs];
UINT8 fore_color = ~c8080bw_colorram[offs & 0x1f1f] & 0x07;
UINT8 fore_color = ~c8080bw_colorram[offs & 0x1f9f] & 0x07;
set_8_pixels(bitmap, y, x, data, pens, fore_color, 0);
}
@ -483,7 +483,7 @@ VIDEO_UPDATE( sflush )
UINT8 x = offs << 3;
UINT8 data = mw8080bw_ram[offs];
UINT8 fore_color = c8080bw_colorram[offs & 0x1f1f] & 0x07;
UINT8 fore_color = c8080bw_colorram[offs & 0x1f9f] & 0x07;
set_8_pixels(bitmap, y, x, data, pens, fore_color, 0);
}