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- Removed color PROM -- uses TRANSPARENCY_PENS instead of TRANSPARENCY_COLOR as per Aaron's instruction

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- Hooked up palette bank selector from schematics, though I am not sure if it is actually used by the code
- Changed set names to match title screen, which is why baseball is spelt as "Base Ball"
This commit is contained in:
Zsolt Vasvari 2008-01-30 00:47:51 +00:00
parent bc0696ade1
commit f56ae95d27
2 changed files with 61 additions and 58 deletions
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47
src/mame/drivers/champbas.c
View File

@ -60,14 +60,15 @@ e000-e3ff RAM
#include "sound/dac.h"
extern WRITE8_HANDLER( champbas_videoram_w );
extern WRITE8_HANDLER( champbas_colorram_w );
extern WRITE8_HANDLER( champbas_gfxbank_w );
extern WRITE8_HANDLER( champbas_flipscreen_w );
WRITE8_HANDLER( champbas_videoram_w );
WRITE8_HANDLER( champbas_colorram_w );
WRITE8_HANDLER( champbas_gfxbank_w );
WRITE8_HANDLER( champbas_palette_bank_w );
WRITE8_HANDLER( champbas_flipscreen_w );
extern PALETTE_INIT( champbas );
extern VIDEO_START( champbas );
extern VIDEO_UPDATE( champbas );
PALETTE_INIT( champbas );
VIDEO_START( champbas );
VIDEO_UPDATE( champbas );
static WRITE8_HANDLER( champbas_dac_w )
{
@ -123,10 +124,11 @@ static ADDRESS_MAP_START( main_map, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x8000, 0x83ff) AM_WRITE(champbas_videoram_w) AM_READ(MRA8_RAM) AM_BASE(&videoram)
AM_RANGE(0x8400, 0x87ff) AM_WRITE(champbas_colorram_w) AM_READ(MRA8_RAM) AM_BASE(&colorram)
AM_RANGE(0x8800, 0x8fef) AM_RAM
AM_RANGE(0x8ff0, 0x8fff) AM_WRITE(MWA8_RAM) AM_READ(MRA8_RAM) AM_BASE(&spriteram) AM_SIZE(&spriteram_size)
AM_RANGE(0x8ff0, 0x8fff) AM_RAM AM_BASE(&spriteram) AM_SIZE(&spriteram_size)
AM_RANGE(0xa000, 0xa000) AM_WRITE(interrupt_enable_w) AM_READ(input_port_0_r)
AM_RANGE(0xa002, 0xa002) AM_WRITE(champbas_gfxbank_w)
AM_RANGE(0xa003, 0xa003) AM_WRITE(champbas_flipscreen_w)
AM_RANGE(0xa004, 0xa004) AM_WRITE(champbas_palette_bank_w)
AM_RANGE(0xa005, 0xa005) AM_NOP
AM_RANGE(0xa040, 0xa040) AM_READ(input_port_1_r)
@ -244,10 +246,10 @@ static const gfx_layout spritelayout =
};
static GFXDECODE_START( champbas )
GFXDECODE_ENTRY( REGION_GFX1, 0x0000, charlayout, 0, 64 )
GFXDECODE_ENTRY( REGION_GFX2, 0x0000, charlayout, 0, 64 )
GFXDECODE_ENTRY( REGION_GFX1, 0x1000, spritelayout, 0, 64 )
GFXDECODE_ENTRY( REGION_GFX2, 0x1000, spritelayout, 0, 64 )
GFXDECODE_ENTRY( REGION_GFX1, 0x0000, charlayout, 0, 128 )
GFXDECODE_ENTRY( REGION_GFX2, 0x0000, charlayout, 0, 128 )
GFXDECODE_ENTRY( REGION_GFX1, 0x1000, spritelayout, 0, 128 )
GFXDECODE_ENTRY( REGION_GFX2, 0x1000, spritelayout, 0, 128 )
GFXDECODE_END
@ -281,8 +283,7 @@ static MACHINE_DRIVER_START( champbas )
MDRV_SCREEN_SIZE(32*8, 32*8)
MDRV_SCREEN_VISIBLE_AREA(0*8, 32*8-1, 2*8, 30*8-1)
MDRV_GFXDECODE(champbas)
MDRV_PALETTE_LENGTH(32)
MDRV_COLORTABLE_LENGTH(64*4)
MDRV_PALETTE_LENGTH(128*4)
MDRV_PALETTE_INIT(champbas)
MDRV_VIDEO_START(champbas)
@ -330,7 +331,7 @@ ROM_START( champbas )
ROM_LOAD( "champbb.2", 0x2000, 0x2000, CRC(5ddd872e) SHA1(68e21572e27707c991180b1bd0a6b31f7b64abf6) )
ROM_LOAD( "champbb.3", 0x4000, 0x2000, CRC(f39a7046) SHA1(3097bffe84ac74ce9e6481028a0ebbe8b1d6eaf9) )
ROM_REGION( 0x10000, REGION_CPU2, 0 ) /* 64k for the speech CPU */
ROM_REGION( 0x10000, REGION_CPU2, 0 )
ROM_LOAD( "champbb.6", 0x0000, 0x2000, CRC(26ab3e16) SHA1(019b9d34233a6b7a53e204154b782ceb42915d2b) )
ROM_LOAD( "champbb.7", 0x2000, 0x2000, CRC(7c01715f) SHA1(b15b2001b8c110f2599eee3aeed79f67686ebd7e) )
ROM_LOAD( "champbb.8", 0x4000, 0x2000, CRC(3c911786) SHA1(eea0c467e213d237b5bb9d04b19a418d6090c2dc) )
@ -352,7 +353,7 @@ ROM_START( champbbj )
ROM_LOAD( "12.2g", 0x2000, 0x2000, CRC(7b4e5faa) SHA1(b7201816a819ef313ddc81f312d26982b83ef1c7) )
ROM_LOAD( "13.2h", 0x4000, 0x2000, CRC(b201e31f) SHA1(bba3b611ff60ad8d5dd8484df4cfc2026f4fd344) )
ROM_REGION( 0x10000, REGION_CPU2, 0 ) /* 64k for the speech CPU */
ROM_REGION( 0x10000, REGION_CPU2, 0 )
ROM_LOAD( "16.2k", 0x0000, 0x2000, CRC(24c482ee) SHA1(c25bdf77014e095fc11a9a6b17f16858f19db451) )
ROM_LOAD( "17.2l", 0x2000, 0x2000, CRC(f10b148b) SHA1(d66516d509f6f16e51ee59d27c4867e276064c3f) )
ROM_LOAD( "18.2n", 0x4000, 0x2000, CRC(2dc484dd) SHA1(28bd68c787d7e6989849ca52009948dbd5cdcc79) )
@ -374,7 +375,7 @@ ROM_START( champbja )
ROM_LOAD( "09", 0x2000, 0x2000, CRC(9d39e5b3) SHA1(11c1a1d2296c0bf16d7610eaa79b034bfd813740) )
ROM_LOAD( "08", 0x4000, 0x2000, CRC(53468a0f) SHA1(d4b5ea48b27754eebe593c8b4fcf5bf117f27ae4) )
ROM_REGION( 0x10000, REGION_CPU2, 0 ) /* 64k for the speech CPU */
ROM_REGION( 0x10000, REGION_CPU2, 0 )
ROM_LOAD( "16.2k", 0x0000, 0x2000, CRC(24c482ee) SHA1(c25bdf77014e095fc11a9a6b17f16858f19db451) )
ROM_LOAD( "17.2l", 0x2000, 0x2000, CRC(f10b148b) SHA1(d66516d509f6f16e51ee59d27c4867e276064c3f) )
ROM_LOAD( "18.2n", 0x4000, 0x2000, CRC(2dc484dd) SHA1(28bd68c787d7e6989849ca52009948dbd5cdcc79) )
@ -397,7 +398,7 @@ ROM_START( champbb2 )
ROM_LOAD( "epr5930", 0x4000, 0x2000, CRC(b6570a90) SHA1(5a2651aeac986000913b5854792b2d81df6b2fc6) )
ROM_LOAD( "epr5931", 0x7800, 0x0800, CRC(0592434d) SHA1(a7f61546c39ffdbff46c4db485c9b3f6eefcf1ac) )
ROM_REGION( 0x10000, REGION_CPU2, 0 ) /* 64k for the speech CPU */
ROM_REGION( 0x10000, REGION_CPU2, 0 )
ROM_LOAD( "epr5933", 0x0000, 0x2000, CRC(26ab3e16) SHA1(019b9d34233a6b7a53e204154b782ceb42915d2b) )
ROM_LOAD( "epr5934", 0x2000, 0x2000, CRC(7c01715f) SHA1(b15b2001b8c110f2599eee3aeed79f67686ebd7e) )
ROM_LOAD( "epr5935", 0x4000, 0x2000, CRC(3c911786) SHA1(eea0c467e213d237b5bb9d04b19a418d6090c2dc) )
@ -421,7 +422,7 @@ ROM_START( champb2a )
ROM_LOAD( "4.bin", 0x7800, 0x0800, NO_DUMP )
/* not in this set, but probably the same */
ROM_REGION( 0x10000, REGION_CPU2, 0 ) /* 64k for the speech CPU */
ROM_REGION( 0x10000, REGION_CPU2, 0 )
ROM_LOAD( "epr5933", 0x0000, 0x2000, CRC(26ab3e16) SHA1(019b9d34233a6b7a53e204154b782ceb42915d2b) )
ROM_LOAD( "epr5934", 0x2000, 0x2000, CRC(7c01715f) SHA1(b15b2001b8c110f2599eee3aeed79f67686ebd7e) )
ROM_LOAD( "epr5935", 0x4000, 0x2000, CRC(3c911786) SHA1(eea0c467e213d237b5bb9d04b19a418d6090c2dc) )
@ -437,10 +438,10 @@ ROM_START( champb2a )
ROM_LOAD( "pr5956", 0x0020, 0x100, CRC(872dd450) SHA1(6c1e2c4a2fc072f4bf4996c731adb0b01b347506) ) /* look-up table */
ROM_END
GAME( 1983, champbas, 0, champbas, champbas, 0, ROT0, "Sega", "Champion Baseball", 0 )
GAME( 1983, champbbj, champbas, champbb2, champbas, champbb2, ROT0, "Alpha Denshi Co.", "Champion Baseball (Japan set 1)", 0 )
GAME( 1983, champbja, champbas, champbb2, champbas, champbb2, ROT0, "Alpha Denshi Co.", "Champion Baseball (Japan set 2)", 0 )
GAME( 1983, champbb2, 0, champbb2, champbas, champbb2, ROT0, "Sega", "Champion Baseball II (set 1)", 0 )
GAME( 1983, champbas, 0, champbas, champbas, 0, ROT0, "Sega", "Champion Base Ball", 0 )
GAME( 1983, champbbj, champbas, champbb2, champbas, champbb2, ROT0, "Alpha Denshi Co.", "Champion Base Ball (Japan set 1)", 0 )
GAME( 1983, champbja, champbas, champbb2, champbas, champbb2, ROT0, "Alpha Denshi Co.", "Champion Base Ball (Japan set 2)", 0 )
GAME( 1983, champbb2, 0, champbb2, champbas, champbb2, ROT0, "Sega", "Champion Base Ball Part-2: Pair Play (set 1)", 0 )
/* NO DUMP */
GAME( 1983, champb2a, champbb2, champbb2, champbas, champbb2, ROT0, "Alpha Denshi Co.", "Champion Baseball II (set 2)", GAME_NOT_WORKING)

72
src/mame/video/champbas.c
View File

@ -8,19 +8,17 @@
#include "driver.h"
static int gfxbank;
static UINT8 gfxbank;
static UINT8 palette_bank;
static tilemap *bg_tilemap;
static UINT8 *pen_mask;
/***************************************************************************
Convert the color PROMs into a more useable format.
Pac Man has a 16 bytes palette PROM and a 128 bytes color lookup table PROM.
Pengo has a 32 bytes palette PROM and a 256 bytes color lookup table PROM
(actually that's 512 bytes, but the high address bit is grounded).
The palette PROM is connected to the RGB output this way:
bit 7 -- 220 ohm resistor -- BLUE
@ -36,44 +34,40 @@ static tilemap *bg_tilemap;
PALETTE_INIT( champbas )
{
int i;
#define TOTAL_COLORS(gfxn) (machine->gfx[gfxn]->total_colors * machine->gfx[gfxn]->color_granularity)
#define COLOR(gfxn,offs) (colortable[machine->drv->gfxdecodeinfo[gfxn].color_codes_start + offs])
pen_mask = auto_malloc(128 * sizeof(UINT8));
memset(pen_mask, 0, 128 * sizeof(UINT8));
for (i = 0;i < machine->drv->total_colors;i++)
for (i = 0; i < machine->drv->total_colors; i++)
{
int bit0,bit1,bit2,r,g,b;
int bit0, bit1, bit2, r, g, b;
UINT8 pen = ((i & 0x100) >> 4) | (color_prom[0x20 + (i & 0xff)] & 0x0f);
/* red component */
bit0 = (*color_prom >> 0) & 0x01;
bit1 = (*color_prom >> 1) & 0x01;
bit2 = (*color_prom >> 2) & 0x01;
bit0 = (color_prom[pen] >> 0) & 0x01;
bit1 = (color_prom[pen] >> 1) & 0x01;
bit2 = (color_prom[pen] >> 2) & 0x01;
r = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
/* green component */
bit0 = (*color_prom >> 3) & 0x01;
bit1 = (*color_prom >> 4) & 0x01;
bit2 = (*color_prom >> 5) & 0x01;
bit0 = (color_prom[pen] >> 3) & 0x01;
bit1 = (color_prom[pen] >> 4) & 0x01;
bit2 = (color_prom[pen] >> 5) & 0x01;
g = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
/* blue component */
bit0 = 0;
bit1 = (*color_prom >> 6) & 0x01;
bit2 = (*color_prom >> 7) & 0x01;
bit1 = (color_prom[pen] >> 6) & 0x01;
bit2 = (color_prom[pen] >> 7) & 0x01;
b = 0x21 * bit0 + 0x47 * bit1 + 0x97 * bit2;
palette_set_color(machine,i,MAKE_RGB(r,g,b));
color_prom++;
palette_set_color(machine, i, MAKE_RGB(r, g, b));
/* set the mask, color 0 is transparent */
if (color_prom[pen] == 0)
pen_mask[i >> 2] |= (1 << (i & 0x03));
}
/* color_prom now points to the beginning of the lookup table */
/* TODO: there are 32 colors in the palette, but we are suing only 16 */
/* the only difference between the two banks is color #14, grey instead of green */
/* character lookup table */
/* sprites use the same color lookup table as characters */
for (i = 0;i < TOTAL_COLORS(0);i++)
COLOR(0,i) = (*(color_prom++) & 0x0f);
}
WRITE8_HANDLER( champbas_videoram_w )
@ -97,6 +91,15 @@ WRITE8_HANDLER( champbas_gfxbank_w )
}
}
WRITE8_HANDLER( champbas_palette_bank_w )
{
if (palette_bank != (data & 0x01))
{
palette_bank = data & 0x01;
tilemap_mark_all_tiles_dirty(ALL_TILEMAPS);
}
}
WRITE8_HANDLER( champbas_flipscreen_w )
{
if (flip_screen != data)
@ -109,15 +112,14 @@ WRITE8_HANDLER( champbas_flipscreen_w )
static TILE_GET_INFO( get_bg_tile_info )
{
int code = videoram[tile_index];
int color = (colorram[tile_index] & 0x1f) + 32;
int color = (palette_bank << 6) | 0x20 | (colorram[tile_index] & 0x1f);
SET_TILE_INFO(gfxbank, code, color, 0);
}
VIDEO_START( champbas )
{
bg_tilemap = tilemap_create(get_bg_tile_info, tilemap_scan_rows,
TILEMAP_TYPE_PEN, 8, 8, 32, 32);
bg_tilemap = tilemap_create(get_bg_tile_info, tilemap_scan_rows, TILEMAP_TYPE_PEN, 8, 8, 32, 32);
}
static void draw_sprites(running_machine *machine, mame_bitmap *bitmap, const rectangle *cliprect)
@ -127,7 +129,7 @@ static void draw_sprites(running_machine *machine, mame_bitmap *bitmap, const re
for (offs = spriteram_size - 2; offs >= 0; offs -= 2)
{
int code = spriteram[offs] >> 2;
int color = spriteram[offs + 1];
int color = (palette_bank << 6) | (spriteram[offs + 1] & 0x3f);
int flipx = spriteram[offs] & 0x01;
int flipy = spriteram[offs] & 0x02;
int sx = ((256 + 16 - spriteram_2[offs + 1]) & 0xff) - 16;
@ -139,7 +141,7 @@ static void draw_sprites(running_machine *machine, mame_bitmap *bitmap, const re
flipx, flipy,
sx, sy,
cliprect,
TRANSPARENCY_COLOR, 0);
TRANSPARENCY_PENS, pen_mask[color]);
}
}