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added forgott1 B-board PALs

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This commit is contained in:
Nicola Salmoria 2008-11-18 09:04:14 +00:00
parent 7df8f23199
commit e6e7a3804d
2 changed files with 40 additions and 1 deletions
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4
src/mame/drivers/cps1.c
View File

@ -3072,6 +3072,10 @@ ROM_START( forgott1 )
ROM_LOAD( "prg1", 0x0000, 0x0117, CRC(f1129744) SHA1(a5300f301c1a08a7da768f0773fa0fe3f683b237) )
ROM_LOAD( "rom1", 0x0000, 0x0117, CRC(41dc73b9) SHA1(7d4c9f1693c821fbf84e32dd6ef62ddf14967845) )
ROM_LOAD( "sou1", 0x0000, 0x0117, CRC(84f4b2fe) SHA1(dcc9e86cc36316fe42eace02d6df75d08bc8bb6d) )
ROM_REGION( 0x0200, "bboardplds", ROMREGION_DISPOSE )
ROM_LOAD( "lw621.1a", 0x0000, 0x0117, CRC(5eec6ce9) SHA1(5ec8b60f1f1bdba865b1fa2387987ce99ff4093a) )
ROM_LOAD( "lwio.12b", 0x0000, 0x0117, CRC(ad52b90c) SHA1(f0fd6aeea515ee449320fe15684e6b3ab7f97bf4) )
ROM_END
/* B-Board 88618B */

37
src/mame/video/cps1.c
View File

@ -433,6 +433,9 @@ CPS_B_21_QSx are various battery configurations in Q-Sound games
*/
// LWCHR and LW621 are equivalent as far as the game is concerned, though the
// equations are different
#define mapper_LWCHR { 0x8000, 0x8000, 0, 0 }, mapper_LWCHR_table
static const struct gfx_range mapper_LWCHR_table[] =
{
@ -452,6 +455,38 @@ static const struct gfx_range mapper_LWCHR_table[] =
{ 0 }
};
#define mapper_LW621 { 0x8000, 0x8000, 0, 0 }, mapper_LW621_table
static const struct gfx_range mapper_LW621_table[] =
{
// verified from PAL dump (PAL @ 1A):
// bank 0 = pin 18
// bank 1 = pin 14
// pins 19, 16, 17, and 12 give an alternate half-size mapping which would
// allow to use smaller ROMs:
// pin 19
// 0 00000-03fff
// pin 16
// 0 04000-07fff
// 1 00000-1ffff
// pin 17
// 2 00000-1ffff
// 3 00000-1ffff
// 4 00000-1ffff
// pin 12
// 3 00000-1ffff
//
// note that allowed codes go up to 0x1ffff but physical ROM is half that size
/* type start end bank */
{ GFXTYPE_SPRITES, 0x00000, 0x07fff, 0 },
{ GFXTYPE_SCROLL1, 0x00000, 0x1ffff, 0 },
{ GFXTYPE_STARS, 0x00000, 0x1ffff, 1 },
{ GFXTYPE_SCROLL2, 0x00000, 0x1ffff, 1 },
{ GFXTYPE_SCROLL3, 0x00000, 0x1ffff, 1 },
{ 0 }
};
// DM620, DM22A and DAM63B are equivalent as far as the game is concerned, though
// the equations are quite different
@ -1199,7 +1234,7 @@ static const struct CPS1config cps1_config_table[]=
{
/* name CPSB gfx mapper in2 in3 out2 kludge */
{"forgottn", CPS_B_01, mapper_LWCHR },
{"forgott1", CPS_B_01, mapper_LWCHR },
{"forgott1", CPS_B_01, mapper_LW621 },
{"lostwrld", CPS_B_01, mapper_LWCHR },
{"ghouls", CPS_B_01, mapper_DM620 },
{"ghoulsu", CPS_B_01, mapper_DM620 },