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workaround for airco22b sprites

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This commit is contained in:
Michaël Banaan Ananas 2013-03-02 22:34:21 +00:00
parent 18c3038d92
commit b0c3577b18
2 changed files with 23 additions and 12 deletions
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7
src/mame/drivers/namcos22.c
View File

@ -5257,7 +5257,7 @@ WRITE16_MEMBER(namcos22_state::mcu_speedup_w)
COMBINE_DATA(&m_su_82);
}
// for MCU BIOS v1.30
// for MCU BIOS v1.20/v1.30
READ16_MEMBER(namcos22_state::mcu130_speedup_r)
{
if ((space.device().safe_pc() == 0xc12a) && (!(m_su_82 & 0xff00)))
@ -5289,7 +5289,7 @@ static void install_c74_speedup(running_machine &machine)
static void install_130_speedup(running_machine &machine)
{
namcos22_state *state = machine.driver_data<namcos22_state>();
// install speedup cheat for 1.30 MCU BIOS
// install speedup cheat for 1.20/1.30 MCU BIOS
if (MCU_SPEEDUP)
state->m_mcu->space(AS_PROGRAM).install_readwrite_handler(0x82, 0x83, read16_delegate(FUNC(namcos22_state::mcu130_speedup_r),state), write16_delegate(FUNC(namcos22_state::mcu_speedup_w),state));
}
@ -5363,6 +5363,7 @@ DRIVER_INIT_MEMBER(namcos22_state,airco22)
namcos22_init(machine(), NAMCOS22_AIR_COMBAT22);
// S22-BIOS ver1.20 namco all rights reserved 94/12/21
install_130_speedup(machine());
}
DRIVER_INIT_MEMBER(namcos22_state,propcycl)
@ -5511,7 +5512,7 @@ GAME( 1996, victlapw, 0, namcos22, victlap, namcos22_state, victlap,
/* Super System22 games */
GAME( 1994, alpinerd, 0, namcos22s, alpiner, namcos22_state, alpiner, ROT0, "Namco", "Alpine Racer (Rev. AR2 Ver.D)" , GAME_IMPERFECT_SOUND|GAME_IMPERFECT_GRAPHICS )
GAME( 1994, alpinerc, alpinerd, namcos22s, alpiner, namcos22_state, alpiner, ROT0, "Namco", "Alpine Racer (Rev. AR2 Ver.C)" , GAME_IMPERFECT_SOUND|GAME_IMPERFECT_GRAPHICS )
GAME( 1995, airco22b, 0, namcos22s, airco22, namcos22_state, airco22, ROT0, "Namco", "Air Combat 22 (Rev. ACS1 Ver.B, Japan)" , GAME_IMPERFECT_SOUND|GAME_IMPERFECT_GRAPHICS|GAME_NOT_WORKING ) // boots but missing sprite clear DMA?
GAME( 1995, airco22b, 0, namcos22s, airco22, namcos22_state, airco22, ROT0, "Namco", "Air Combat 22 (Rev. ACS1 Ver.B, Japan)" , GAME_IMPERFECT_SOUND|GAME_IMPERFECT_GRAPHICS|GAME_NOT_WORKING ) // various problems
GAME( 1995, cybrcycc, 0, namcos22s, cybrcycc, namcos22_state, cybrcyc, ROT0, "Namco", "Cyber Cycles (Rev. CB2 Ver.C)" , GAME_IMPERFECT_SOUND|GAME_IMPERFECT_GRAPHICS ) // 95/04/04
GAME( 1995, dirtdash, 0, namcos22s, dirtdash, namcos22_state, dirtdash, ROT0, "Namco", "Dirt Dash (Rev. DT2)" , GAME_IMPERFECT_SOUND|GAME_IMPERFECT_GRAPHICS ) // 95/12/20 20:01:56
GAME( 1995, timecris, 0, timecris, timecris, namcos22_state, timecris, ROT0, "Namco", "Time Crisis (Rev. TS2 Ver.B)" , GAME_IMPERFECT_SOUND|GAME_IMPERFECT_GRAPHICS ) // 96/04/02 18:48:00

28
src/mame/video/namcos22.c
View File

@ -7,8 +7,7 @@
* - texture u/v mapping is often 1 pixel off, resulting in many glitch lines/gaps between textures
* - tokyowar tanks are not shootable, same for timecris helicopter, there's still a very small hitbox but almost impossible to hit
* (is this related to dsp? or cpu?)
* - find out how/where vics num_sprites is determined exactly, it causes major sprite problems in airco22b
* dirtdash would have this issue too, if not for the current workaround
* - find out how/where vics num_sprites is determined exactly, currently a workaround is needed for airco22b and dirtdash
* - improve ss22 fogging:
* + scene changes too rapidly sometimes, eg. dirtdash snow level finish (see attract), or aquajet going down the waterfall
* + 100% fog if you start dirtdash at the hill level
@ -1622,7 +1621,7 @@ static void DrawSprites( running_machine &machine, bitmap_rgb32 &bitmap, const r
}
if (machine.input().code_pressed(KEYCODE_S))
popmessage("%s",msg1);
else popmessage("[S] shows spite/vics regs");
else popmessage("[S] shows sprite/vics regs");
#endif
/*
0x980000: 00060000 00010000 02ff0000 000007ff
@ -1647,11 +1646,11 @@ static void DrawSprites( running_machine &machine, bitmap_rgb32 &bitmap, const r
*/
/* 'enable' bits function:
bit 0: affects spritecount by 1? (alpinr2b)
bit 0: sprites on?
bit 1: ??? (always set, except in alpinr2b. it's not x-resolution)
bit 2: y-resolution? (always set, except in cybrcycc)
all bits set means off (aquajet) */
int enable = spriteram32[0]>>16&7;
int enable = spriteram32[0]>>16&5;
int y_lowres = (enable & 4) ? 0 : 1;
@ -1659,10 +1658,9 @@ static void DrawSprites( running_machine &machine, bitmap_rgb32 &bitmap, const r
int deltay = (spriteram32[3]>>16) + (0x2a >> y_lowres);
int base = spriteram32[0] & 0xffff; // alpinesa/alpinr2b
int num_sprites = (spriteram32[1]>>16) - base;
num_sprites += (~enable & 1);
int num_sprites = ((spriteram32[1]>>16) - base) + 1;
if( num_sprites > 0 && num_sprites < 0x400 && enable != 7 )
if( num_sprites > 0 && num_sprites < 0x400 && enable != 5 )
{
pSource = &spriteram32[0x04000/4 + base*4];
pPal = &spriteram32[0x20000/4 + base*2];
@ -1690,7 +1688,8 @@ static void DrawSprites( running_machine &machine, bitmap_rgb32 &bitmap, const r
num_sprites = state->m_vics_control[0x40/4] >> 4 & 0x1ff; // no +1
// dirtdash sprite list starts at xxx4, number of sprites is stored in xxx0, it doesn't use set#2
if (state->m_gametype == NAMCOS22_DIRT_DASH) num_sprites = (state->m_vics_data[(state->m_vics_control[0x48/4]&0x4000)/4] & 0xff) + 1;
if (state->m_gametype == NAMCOS22_DIRT_DASH)
num_sprites = (state->m_vics_data[(state->m_vics_control[0x48/4]&0x4000)/4] & 0xff) + 1;
if( num_sprites > 0 )
{
@ -1700,6 +1699,17 @@ static void DrawSprites( running_machine &machine, bitmap_rgb32 &bitmap, const r
}
num_sprites = state->m_vics_control[0x60/4] >> 4 & 0x1ff; // no +1
// airco22b number of sprites for set#2 is stored in set#1 - it does not use set 1, or main set for sprites
if (state->m_gametype == NAMCOS22_AIR_COMBAT22)
{
enable = state->m_vics_data[(state->m_vics_control[0x48/4]&0xffff)/4]>>16&5;
if (enable != 5)
num_sprites = (state->m_vics_data[(state->m_vics_control[0x48/4]&0xffff)/4+1]>>16)+1;
else
num_sprites = 0;
}
if( num_sprites > 0 )
{
pSource = &state->m_vics_data[(state->m_vics_control[0x68/4]&0xffff)/4];