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V9958: Added preliminary screen modes 10/11/12, used by Puzzle Star/Sexy Boom [Angelo Salese, Wilbert Pol]

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This commit is contained in:
Angelo Salese 2013-11-20 05:21:47 +00:00
parent b0a84b4776
commit e00343d627
3 changed files with 99 additions and 26 deletions
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116
src/emu/video/v9938.c
View File

@ -327,27 +327,6 @@ UINT32 v99x8_device::screen_update(screen_device &screen, bitmap_ind16 &bitmap,
return 0;
}
/*
so lookups for screen 12 will look like:
int ind;
ind = (*data & 7) << 11 | (*(data + 1) & 7) << 14 |
(*(data + 2) & 7) << 5 | (*(data + 3) & 7) << 8;
pixel0 = s_pal_indYJK[ind | (*data >> 3) & 31];
pixel1 = s_pal_indYJK[ind | (*(data + 1) >> 3) & 31];
pixel2 = s_pal_indYJK[ind | (*(data + 2) >> 3) & 31];
pixel3 = s_pal_indYJK[ind | (*(data + 3) >> 3) & 31];
and for screen 11:
pixel0 = (*data) & 8 ? pal_ind16[(*data) >> 4] : s_pal_indYJK[ind | (*data >> 3) & 30];
pixel1 = *(data+1) & 8 ? pal_ind16[*(data+1) >> 4] : s_pal_indYJK[ind | *(data+1) >> 3) & 30];
pixel2 = *(data+2) & 8 ? pal_ind16[*(data+2) >> 4] : s_pal_indYJK[ind | *(data+2) >> 3) & 30];
pixel3 = *(data+3) & 8 ? pal_ind16[*(data+3) >> 4] : s_pal_indYJK[ind | *(data+3) >> 3) & 30];
*/
READ8_MEMBER( v99x8_device::read )
{
switch (offset & 3)
@ -858,6 +837,11 @@ void v99x8_device::register_write (int reg, int data)
LOG(("v9938: Attempting to write %02xh to V9958 R#%d\n", data, reg));
data = 0;
}
else
{
if(reg == 25)
m_v9958_sp_mode = data & 0x18;
}
break;
case 44:
@ -1436,7 +1420,95 @@ void v99x8_device::mode_graphic7(const pen_t *pens, _PixelType *ln, int line)
xx = m_offset_x * 2;
while (xx--) *ln++ = pen_bg;
if (m_cont_reg[2] & 0x40)
if ((m_v9958_sp_mode & 0x18) == 0x08) // v9958 screen 12, puzzle star title screen
{
for (x=0;x<64;x++)
{
int colour[4];
int ind;
colour[0] = m_vram_space->read_byte(((nametbl_addr&1) << 16) | (nametbl_addr>>1));
nametbl_addr++;
colour[1] = m_vram_space->read_byte(((nametbl_addr&1) << 16) | (nametbl_addr>>1));
nametbl_addr++;
colour[2] = m_vram_space->read_byte(((nametbl_addr&1) << 16) | (nametbl_addr>>1));
nametbl_addr++;
colour[3] = m_vram_space->read_byte(((nametbl_addr&1) << 16) | (nametbl_addr>>1));
ind = (colour[0] & 7) << 11 | (colour[1] & 7) << 14 |
(colour[2] & 7) << 5 | (colour[3] & 7) << 8;
*ln++ = s_pal_indYJK[ind | ((colour[0] >> 3) & 31)];
if (_Width > 512)
*ln++ = s_pal_indYJK[ind | ((colour[0] >> 3) & 31)];
*ln++ = s_pal_indYJK[ind | ((colour[1] >> 3) & 31)];
if (_Width > 512)
*ln++ = s_pal_indYJK[ind | ((colour[1] >> 3) & 31)];
*ln++ = s_pal_indYJK[ind | ((colour[2] >> 3) & 31)];
if (_Width > 512)
*ln++ = s_pal_indYJK[ind | ((colour[2] >> 3) & 31)];
*ln++ = s_pal_indYJK[ind | ((colour[3] >> 3) & 31)];
if (_Width > 512)
*ln++ = s_pal_indYJK[ind | ((colour[3] >> 3) & 31)];
nametbl_addr++;
}
}
else if ((m_v9958_sp_mode & 0x18) == 0x18) // v9958 screen 10/11, puzzle star & sexy boom gameplay
{
for (x=0;x<64;x++)
{
int colour[4];
int ind;
/*
pixel0 = (*data) & 8 ? pal_ind16[(*data) >> 4] : s_pal_indYJK[ind | (*data >> 3) & 30];
pixel1 = *(data+1) & 8 ? pal_ind16[*(data+1) >> 4] : s_pal_indYJK[ind | *(data+1) >> 3) & 30];
pixel2 = *(data+2) & 8 ? pal_ind16[*(data+2) >> 4] : s_pal_indYJK[ind | *(data+2) >> 3) & 30];
pixel3 = *(data+3) & 8 ? pal_ind16[*(data+3) >> 4] : s_pal_indYJK[ind | *(data+3) >> 3) & 30];
*/
colour[0] = m_vram_space->read_byte(((nametbl_addr&1) << 16) | (nametbl_addr>>1));
nametbl_addr++;
colour[1] = m_vram_space->read_byte(((nametbl_addr&1) << 16) | (nametbl_addr>>1));
nametbl_addr++;
colour[2] = m_vram_space->read_byte(((nametbl_addr&1) << 16) | (nametbl_addr>>1));
nametbl_addr++;
colour[3] = m_vram_space->read_byte(((nametbl_addr&1) << 16) | (nametbl_addr>>1));
ind = (colour[0] & 7) << 11 | (colour[1] & 7) << 14 |
(colour[2] & 7) << 5 | (colour[3] & 7) << 8;
*ln++ = colour[0] & 8 ? m_pal_ind16[colour[0] >> 4] : s_pal_indYJK[ind | ((colour[0] >> 3) & 30)];
if (_Width > 512)
*ln++ = colour[0] & 8 ? m_pal_ind16[colour[0] >> 4] : s_pal_indYJK[ind | ((colour[0] >> 3) & 30)];
*ln++ = colour[1] & 8 ? m_pal_ind16[colour[1] >> 4] : s_pal_indYJK[ind | ((colour[1] >> 3) & 30)];
if (_Width > 512)
*ln++ = colour[1] & 8 ? m_pal_ind16[colour[1] >> 4] : s_pal_indYJK[ind | ((colour[1] >> 3) & 30)];
*ln++ = colour[2] & 8 ? m_pal_ind16[colour[2] >> 4] : s_pal_indYJK[ind | ((colour[2] >> 3) & 30)];
if (_Width > 512)
*ln++ = colour[2] & 8 ? m_pal_ind16[colour[2] >> 4] : s_pal_indYJK[ind | ((colour[2] >> 3) & 30)];
*ln++ = colour[3] & 8 ? m_pal_ind16[colour[3] >> 4] : s_pal_indYJK[ind | ((colour[3] >> 3) & 30)];
if (_Width > 512)
*ln++ = colour[3] & 8 ? m_pal_ind16[colour[3] >> 4] : s_pal_indYJK[ind | ((colour[3] >> 3) & 30)];
nametbl_addr++;
}
}
else if (m_cont_reg[2] & 0x40)
{
for (x=0;x<32;x++)
{

1
src/emu/video/v9938.h
View File

@ -185,6 +185,7 @@ private:
int m_pal_write_first, m_cmd_write_first;
UINT8 m_pal_write, m_cmd_write;
UINT8 m_pal_reg[32], m_stat_reg[10], m_cont_reg[48], m_read_ahead;
UINT8 m_v9958_sp_mode;
// memory
UINT16 m_address_latch;

8
src/mame/drivers/sangho.c
View File

@ -37,8 +37,8 @@ is a YM2413 compatible chip.
Sexy Boom's DSW setting verified via Z80 code by stephh
TODO:
- both games almost likely uses unemulated V9958 YJK mode(s)
http://www.msx-plaza.eu/home.php?page=mccm/mccm72/schermen_eng
- sexyboom hangs at snippet 0x2ca0-0x2ca9, patching 0x2ca7 branch makes it to be fully playable;
- v9958 screen modes 10/11/12 aren't 100% perfect (wrong pixels in some places);
*/
@ -523,5 +523,5 @@ DRIVER_INIT_MEMBER(sangho_state,sangho)
m_ram = auto_alloc_array(machine(), UINT8, 0x20000);
}
GAME( 1991, pzlestar, 0, pzlestar, pzlestar, sangho_state, sangho, ROT270, "Sang Ho Soft", "Puzzle Star (Sang Ho Soft)", GAME_NOT_WORKING )
GAME( 1992, sexyboom, 0, sexyboom, sexyboom, sangho_state, sangho, ROT270, "Sang Ho Soft", "Sexy Boom", GAME_IMPERFECT_GRAPHICS | GAME_WRONG_COLORS )
GAME( 1991, pzlestar, 0, pzlestar, pzlestar, sangho_state, sangho, ROT270, "Sang Ho Soft", "Puzzle Star (Sang Ho Soft)", GAME_NOT_WORKING | GAME_IMPERFECT_COLORS )
GAME( 1992, sexyboom, 0, sexyboom, sexyboom, sangho_state, sangho, ROT270, "Sang Ho Soft", "Sexy Boom", GAME_IMPERFECT_GRAPHICS | GAME_IMPERFECT_COLORS )