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notes (nw)

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This commit is contained in:
mamehaze 2015-03-24 15:41:00 +00:00
parent 3d2c821651
commit 6dc4835957
1 changed files with 55 additions and 21 deletions
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76
src/mame/drivers/ttchamp.c
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@ -1,4 +1,5 @@
/* Table Tennis Champions ?
/* Table Tennis Champions
(c) 1995 Gamart
___________________________________________________
| __ _________ __________ __________ |
@ -45,7 +46,7 @@ ttennis1 adpcm data
ttennis4/5 graphics
*there is a pic16c84 that i cannot dump because my programmer doesn't support it.
Dumped by tirino73 >isolani (at) interfree.it<
Dumped by tirino73
@ -54,7 +55,8 @@ Dumped by tirino73 >isolani (at) interfree.it<
including the blitter (seems to be doubled up hardware tho, twice as many layers?)
- need to work out how it selects between upper/lower
program roms as blitter source
- PIC is probably for sound
- PIC is not for sound, what is is for?
- eeprom? (I don't see one, maybe PIC is used for settings?)
- more than one layer
- layer clearing
@ -80,6 +82,13 @@ public:
DECLARE_WRITE16_MEMBER(paldat_w);
DECLARE_WRITE16_MEMBER(port10_w);
DECLARE_WRITE16_MEMBER(port20_w);
DECLARE_WRITE16_MEMBER(port62_w);
DECLARE_READ16_MEMBER(port1e_r);
UINT16 m_port10;
DECLARE_DRIVER_INIT(ttchamp);
@ -190,7 +199,12 @@ WRITE16_MEMBER(ttchamp_state::paloff_w)
WRITE16_MEMBER(ttchamp_state::paldat_w)
{
m_palette->set_pen_color(m_paloff & 0x7fff,pal5bit(data>>0),pal5bit(data>>5),pal5bit(data>>10));
// maybe 4 layers of 0x100 each?
// middle palettes seem to have special meaning tho, maybe blending? it's a darker copy ingame, and red/blue shades on char select
// based on screenshot references the highlighted player portraits should be appear in shades of red/blue
// 0x8000 of offset is sometimes set
m_palette->set_pen_color(m_paloff & 0x3ff,pal5bit(data>>0),pal5bit(data>>5),pal5bit(data>>10));
}
@ -249,14 +263,14 @@ WRITE16_MEMBER(ttchamp_state::ttchamp_mem_w)
if (m_spritesinit == 1)
{
// printf("spider_blitter_w %08x %04x %04x (init?) (base?)\n", offset * 2, data, mem_mask);
// printf("%06x: spider_blitter_w %08x %04x %04x (init?) (base?)\n", space.device().safe_pc(), offset * 2, data, mem_mask);
m_spritesinit = 2;
m_spritesaddr = offset;
}
else if (m_spritesinit == 2)
{
// printf("spider_blitter_w %08x %04x %04x (init2) (width?)\n", offset * 2, data, mem_mask);
// printf("%06x: spider_blitter_w %08x %04x %04x (init2) (width?)\n", space.device().safe_pc(), offset * 2, data, mem_mask);
m_spriteswidth = offset & 0xff;
if (m_spriteswidth == 0)
m_spriteswidth = 80;
@ -274,9 +288,9 @@ WRITE16_MEMBER(ttchamp_state::ttchamp_mem_w)
{
COMBINE_DATA(&vram[offset&0x7fff]);
}
else if (offset < 0x40000 / 2)
else if ((offset >= 0x30000 / 2) && (offset < 0x40000 / 2))
{
// 0x30000-0x3ffff and 0x40000-0x4ffff seem to be used here?
// 0x30000-0x3ffff used, on Spider it's 0x20000-0x2ffff
offset &= 0x7fff;
UINT8 *src = m_rom8;
@ -284,7 +298,7 @@ WRITE16_MEMBER(ttchamp_state::ttchamp_mem_w)
if (m_port10 & 2) // NO, wrong for the portraits
src += 0x100000;
// printf("spider_blitter_w %08x %04x %04x (previous data width %d address %08x)\n", offset * 2, data, mem_mask, m_spriteswidth, m_spritesaddr);
// printf("%06x: spider_blitter_w %08x %04x %04x (previous data width %d address %08x)\n", space.device().safe_pc(), offset * 2, data, mem_mask, m_spriteswidth, m_spritesaddr);
offset &= 0x7fff;
for (int i = 0; i < m_spriteswidth; i++)
@ -311,46 +325,66 @@ WRITE16_MEMBER(ttchamp_state::ttchamp_mem_w)
}
else
{
logerror("spider_blitter_w unhandled RAM access %08x %04x %04x\n", offset * 2, data, mem_mask);
// sometimes happens, why? special meanings? wrong interpretation of something else?
printf("%06x: spider_blitter_w unhandled RAM access %08x %04x %04x\n", space.device().safe_pc(), offset * 2, data, mem_mask);
}
}
}
static ADDRESS_MAP_START( ttchamp_map, AS_PROGRAM, 16, ttchamp_state )
AM_RANGE(0x00000, 0xfffff) AM_READWRITE(ttchamp_mem_r, ttchamp_mem_w)
ADDRESS_MAP_END
READ16_MEMBER(ttchamp_state::port1e_r)
{
return 0xff;
}
READ16_MEMBER(ttchamp_state::ttchamp_blit_start_r)
{
m_spritesinit = 1;
return 0xff;
}
static ADDRESS_MAP_START( ttchamp_map, AS_PROGRAM, 16, ttchamp_state )
AM_RANGE(0x00000, 0xfffff) AM_READWRITE(ttchamp_mem_r, ttchamp_mem_w)
ADDRESS_MAP_END
WRITE16_MEMBER(ttchamp_state::port10_w)
{
COMBINE_DATA(&m_port10);
}
WRITE16_MEMBER(ttchamp_state::port20_w)
{
printf("%06x: port20_w %04x %04x\n", space.device().safe_pc(), data, mem_mask);
}
WRITE16_MEMBER(ttchamp_state::port62_w)
{
printf("%06x: port62_w %04x %04x\n", space.device().safe_pc(), data, mem_mask);
}
static ADDRESS_MAP_START( ttchamp_io, AS_IO, 16, ttchamp_state )
// AM_RANGE(0x0000, 0x0001) AM_WRITENOP
AM_RANGE(0x0000, 0x0001) AM_WRITENOP // startup only
AM_RANGE(0x0002, 0x0003) AM_READ_PORT("SYSTEM")
AM_RANGE(0x0004, 0x0005) AM_READ_PORT("P1_P2")
AM_RANGE(0x0006, 0x0007) AM_DEVREADWRITE8("oki", okim6295_device, read, write, 0x00ff)
AM_RANGE(0x0018, 0x0019) AM_READ(ttchamp_blit_start_r)
AM_RANGE(0x001e, 0x001f) AM_READNOP // read before each line is blit
AM_RANGE(0x0018, 0x0019) AM_READ(ttchamp_blit_start_r) // read before using bus write offset as blit parameters
AM_RANGE(0x001e, 0x001f) AM_READ(port1e_r) // read before some blit operations (but not all)
AM_RANGE(0x0008, 0x0009) AM_WRITE(paldat_w)
AM_RANGE(0x000a, 0x000b) AM_WRITE(paloff_w)
AM_RANGE(0x000a, 0x000b) AM_WRITE(paloff_w) // bit 0x8000 sometimes gets set, why?
AM_RANGE(0x0010, 0x0011) AM_WRITE(port10_w)
// AM_RANGE(0x0020, 0x0021) AM_WRITENOP
AM_RANGE(0x0020, 0x0021) AM_WRITE(port20_w)
// AM_RANGE(0x0034, 0x0035) AM_READ(peno_rand) AM_WRITENOP // eeprom (PIC?) / settings?
AM_RANGE(0x0062, 0x0063) AM_WRITE(port62_w)
// AM_RANGE(0x0034, 0x0035) AM_READ(peno_rand) AM_WRITENOP
ADDRESS_MAP_END
@ -441,7 +475,7 @@ static MACHINE_CONFIG_START( ttchamp, ttchamp_state )
MCFG_SCREEN_UPDATE_DRIVER(ttchamp_state, screen_update_ttchamp)
MCFG_SCREEN_PALETTE("palette")
MCFG_PALETTE_ADD("palette", 0x8000)
MCFG_PALETTE_ADD("palette", 0x400)
MCFG_SPEAKER_STANDARD_MONO("mono")