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experimenting, at least identified the main difference between the two sets (nw)

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This commit is contained in:
mamehaze 2015-03-22 12:43:44 +00:00
parent 6ce56b64db
commit 2fbc689de9
1 changed files with 91 additions and 18 deletions
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109
src/mame/drivers/ttchamp.c
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@ -78,6 +78,10 @@ public:
DECLARE_WRITE16_MEMBER(paloff_w);
DECLARE_WRITE16_MEMBER(pcup_prgbank_w);
DECLARE_WRITE16_MEMBER(paldat_w);
DECLARE_WRITE16_MEMBER(port10_w);
UINT16 m_port10;
DECLARE_DRIVER_INIT(ttchamp);
DECLARE_READ16_MEMBER(ttchamp_blit_start_r);
@ -85,7 +89,12 @@ public:
DECLARE_READ16_MEMBER(ttchamp_mem_r);
DECLARE_WRITE16_MEMBER(ttchamp_mem_w);
UINT16 m_videoram[0x10000 / 2];
UINT16 m_videoram0[0x10000 / 2];
UINT16 m_videoram1[0x10000 / 2];
UINT16 m_videoram2[0x10000 / 2];
UINT16 m_mainram[0x10000 / 2];
int m_spritesinit;
@ -116,6 +125,7 @@ void ttchamp_state::video_start()
UINT32 ttchamp_state::screen_update_ttchamp(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
logerror("update\n");
int y,x,count;
static const int xxx=320,yyy=204;
@ -123,7 +133,7 @@ UINT32 ttchamp_state::screen_update_ttchamp(screen_device &screen, bitmap_ind16
bitmap.fill(m_palette->black_pen());
count=0;
UINT8 *videoram = (UINT8*)m_videoram;
UINT8 *videoram = (UINT8*)m_videoram0;
for (y=0;y<yyy;y++)
{
for(x=0;x<xxx;x++)
@ -132,6 +142,41 @@ UINT32 ttchamp_state::screen_update_ttchamp(screen_device &screen, bitmap_ind16
count++;
}
}
count=0;
videoram = (UINT8*)m_videoram1;
for (y=0;y<yyy;y++)
{
for(x=0;x<xxx;x++)
{
UINT8 pix = videoram[BYTE_XOR_LE(count)];
if (pix) bitmap.pix16(y, x) = pix+0x200;
count++;
}
}
count=0;
videoram = (UINT8*)m_videoram2;
for (y=0;y<yyy;y++)
{
for(x=0;x<xxx;x++)
{
UINT8 pix = videoram[BYTE_XOR_LE(count)];
if (pix) bitmap.pix16(y, x) = pix+0x000;
count++;
}
}
for (int i = 0; i < 0x8000; i++)
{
// how are layers cleared?
// I think it actually does more blit operations with
// different bits of m_port10 set to redraw the backgrounds using the video ram data as a source rather than ROM - notice the garbage you see behind 'sprites' right now
// this method also removes the text layer, which we don't want
m_videoram1[i] = 0x0000;
m_videoram2[i] = 0x0000;
}
return 0;
}
@ -151,11 +196,20 @@ WRITE16_MEMBER(ttchamp_state::paldat_w)
READ16_MEMBER(ttchamp_state::ttchamp_mem_r)
{
// bits 0xf0 are used too, so this is likely wrong.
UINT16* vram;
// if (m_videorambank & 1)
// vram = m_videoram2;
// else
vram = m_videoram;
if ((m_port10&0xf) == 0x00)
vram = m_videoram0;
else if ((m_port10&0xf) == 0x01)
vram = m_videoram1;
else if ((m_port10&0xf) == 0x03)
vram = m_videoram2;
else
{
printf("unhandled video bank %02x\n", m_port10);
vram = m_videoram2;
}
if (offset < 0x10000 / 2)
{
@ -176,11 +230,22 @@ WRITE16_MEMBER(ttchamp_state::ttchamp_mem_w)
{
// this is very strange, we use the offset (address bits) not data bits to set values..
// I get the impression this might actually overlay the entire address range, including RAM and regular VRAM?
// bits 0xf0 are used too, so this is likely wrong.
UINT16* vram;
// if (m_videorambank & 1)
// vram = m_videoram2;
// else
vram = m_videoram;
if ((m_port10&0xf) == 0x00)
vram = m_videoram0;
else if ((m_port10&0xf) == 0x01)
vram = m_videoram1;
else if ((m_port10&0xf) == 0x03)
vram = m_videoram2;
else
{
printf("unhandled video bank %02x\n", m_port10);
vram = m_videoram2;
}
if (m_spritesinit == 1)
{
@ -216,6 +281,9 @@ WRITE16_MEMBER(ttchamp_state::ttchamp_mem_w)
UINT8 *src = m_rom8;
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);
offset &= 0x7fff;
@ -243,7 +311,7 @@ WRITE16_MEMBER(ttchamp_state::ttchamp_mem_w)
}
else
{
printf("spider_blitter_w unhandled RAM access %08x %04x %04x\n", offset * 2, data, mem_mask);
logerror("spider_blitter_w unhandled RAM access %08x %04x %04x\n", offset * 2, data, mem_mask);
}
}
}
@ -258,23 +326,28 @@ 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);
}
static ADDRESS_MAP_START( ttchamp_io, AS_IO, 16, ttchamp_state )
AM_RANGE(0x0000, 0x0001) AM_WRITENOP
// AM_RANGE(0x0000, 0x0001) AM_WRITENOP
AM_RANGE(0x0002, 0x0003) AM_READ_PORT("SYSTEM")
AM_RANGE(0x0004, 0x0005) AM_READ_PORT("P1_P2")
AM_RANGE(0x0018, 0x0019) AM_READ(ttchamp_blit_start_r)
// AM_RANGE(0x001e, 0x001f) AM_READ(peno_rand2)
AM_RANGE(0x001e, 0x001f) AM_READNOP // read before each line is blit
AM_RANGE(0x0008, 0x0009) AM_WRITE(paldat_w)
AM_RANGE(0x000a, 0x000b) AM_WRITE(paloff_w)
// AM_RANGE(0x0010, 0x0010) AM_WRITE(pcup_prgbank_w)
AM_RANGE(0x0010, 0x0011) AM_WRITENOP
AM_RANGE(0x0010, 0x0011) AM_WRITE(port10_w)
AM_RANGE(0x0020, 0x0021) AM_WRITENOP
// AM_RANGE(0x0020, 0x0021) AM_WRITENOP
// AM_RANGE(0x0034, 0x0035) AM_READ(peno_rand) AM_WRITENOP
ADDRESS_MAP_END
@ -406,5 +479,5 @@ DRIVER_INIT_MEMBER(ttchamp_state,ttchamp)
// membank("bank2")->set_base(&ROM1[0x180000]);
}
GAME( 1995, ttchamp, 0, ttchamp, ttchamp, ttchamp_state, ttchamp, ROT0, "Gamart", "Table Tennis Champions (set 1)", GAME_NOT_WORKING|GAME_NO_SOUND )
GAME( 1995, ttchampa,ttchamp, ttchamp, ttchamp, ttchamp_state, ttchamp, ROT0, "Gamart", "Table Tennis Champions (set 2)", GAME_NOT_WORKING|GAME_NO_SOUND )
GAME( 1995, ttchamp, 0, ttchamp, ttchamp, ttchamp_state, ttchamp, ROT0, "Gamart", "Table Tennis Champions", GAME_NOT_WORKING|GAME_NO_SOUND ) // this has various advertising boards, including 'Electronic Devices' and 'Deniam'
GAME( 1995, ttchampa,ttchamp, ttchamp, ttchamp, ttchamp_state, ttchamp, ROT0, "Gamart (Palencia Elektronik license)", "Table Tennis Champions (Palencia Elektronik license)", GAME_NOT_WORKING|GAME_NO_SOUND ) // this only has Palencia Elektronik advertising boards