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Decrypted Mahjong Man Guan Cai Shen

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This commit is contained in:
Pierpaolo Prazzoli 2008-08-21 21:33:06 +00:00
parent 5d2cd5732f
commit ba5fd30bf8
1 changed files with 203 additions and 1 deletions
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204
src/mame/drivers/igs_m68.c
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@ -30,6 +30,7 @@ static VIDEO_UPDATE(igs_m68)
static ADDRESS_MAP_START( igs_m68_map, ADDRESS_SPACE_PROGRAM, 16 )
AM_RANGE(0x000000, 0x07ffff) AM_ROM
AM_RANGE(0x303000, 0x303fff) AM_RAM
ADDRESS_MAP_END
static INPUT_PORTS_START( igs_m68 )
@ -308,10 +309,211 @@ ROM_START( sdmg2 )
ROM_LOAD( "m0902.u4", 0x000000, 0x080000, CRC(3298b13b) SHA1(13b21ddeed368b7f4fea1408c8fc511244342faf) )
ROM_END
static DRIVER_INIT( mgcs )
{
int i;
UINT16 *src = (UINT16 *) (memory_region(machine, "main"));
int rom_size = 0x80000;
for (i=0; i<rom_size/2; i++)
{
UINT16 x = src[i];
if( (i & 0x7000/2) == 0x6000/2 || (i & 0x7000/2) == 0x7000/2)
{
if( (i & 0x20/2) )
{
if( (i & 0x02/2) )
{
x ^= 0x0100;
}
}
else if( (i & 0x100/2) && !(i & 0x400/2) )
{
x ^= 0x0001;
}
if( (i & 0x100/2) && (i & 0x400/2) )
{
x ^= 0x0001;
}
}
else if( (i & 0x7000/2) == 0x4000/2 || (i & 0x7000/2) == 0x5000/2 )
{
if( i & 0x20/2 )
{
if( i & 0x02/2 )
{
x ^= 0x0100;
}
}
if( i & 0x100/2 )
{
if( !(i & 0x20/2) || (i & 0x80/2) || (i & 0x400/2) )
{
x ^= 0x0001;
}
}
else
{
if( i & 0x80/2 )
{
x ^= 0x0001;
}
}
}
else if( (i & 0x7000/2) == 0x2000/2 || (i & 0x7000/2) == 0x3000/2 )
{
if( (i & 0x300/2) == 0x100/2 || (i & 0x300/2) == 0x300/2 )
{
if( !(i & 0x20/2) || (i & 0x400/2) )
{
x ^= 0x0001;
}
if( i & 0x20/2 )
{
if( i & 0x02/2 )
{
x ^= 0x0100;
}
}
}
else if( (i & 0x300/2) == 0x200/2 )
{
if( i & 0x20/2 )
{
if( i & 0x02/2 )
{
x ^= 0x0100;
}
}
}
else
{
if( i & 0x20/2 )
{
if( !(i & 0x02/2) )
{
x ^= 0x0100;
}
}
else
{
x ^= 0x0100;
}
}
}
else if( (i & 0x7000/2) == 0x0000/2 || (i & 0x7000/2) == 0x1000/2)
{
if( (i & 0x300/2) == 0x100/2 || (i & 0x300/2) == 0x300/2 )
{
if( i & 0x80/2 )
{
x ^= 0x0001;
if( i & 0x20/2 )
{
if( (i & 0x02/2) )
{
x ^= 0x0100;
}
}
}
else
{
if( i & 0x20/2 )
{
if( (i & 0x02/2) )
{
x ^= 0x0100;
}
}
else if( !(i & 0x400/2) )
{
x ^= 0x0001;
}
if( i & 0x400/2 )
{
x ^= 0x0001;
}
}
}
else if( (i & 0x300/2) == 0x200/2 )
{
if( i & 0x80/2 )
{
x ^= 0x0001;
if( i & 0x20/2 )
{
if( (i & 0x02/2) )
{
x ^= 0x0100;
}
}
}
else
{
if( (i & 0x20/2) )
{
if( (i & 0x02/2) )
{
x ^= 0x0100;
}
}
}
}
else
{
if( i & 0x80/2 )
{
x ^= 0x0001;
if( i & 0x20/2 )
{
if( !(i & 0x02/2) )
{
x ^= 0x0100;
}
}
else
{
x ^= 0x0100;
}
}
else
{
if( i & 0x400/2 )
{
if( i & 0x20/2 )
{
if( !(i & 0x02/2) )
x ^= 0x0100;
}
else
{
x ^= 0x0100;
}
}
else
{
x ^= 0x0100;
}
}
}
}
src[i] = (x << 8) | (x >> 8);
}
}
GAME( 1998, lhzb2, 0, igs_m68, igs_m68, 0, ROT0, "IGS", "Mahjong Long Hu Zheng Ba 2 (set 1)", GAME_NOT_WORKING )
GAME( 1998, lhzb2a, lhzb2, igs_m68, igs_m68, 0, ROT0, "IGS", "Mahjong Long Hu Zheng Ba 2 (set 2)", GAME_NOT_WORKING )
GAME( 1998, mgcs, 0, igs_m68, igs_m68, 0, ROT0, "IGS", "Mahjong Man Guan Cai Shen", GAME_NOT_WORKING )
GAME( 1998, mgcs, 0, igs_m68, igs_m68, mgcs, ROT0, "IGS", "Mahjong Man Guan Cai Shen", GAME_NOT_WORKING )
GAME( 1998, slqz2, 0, igs_m68, igs_m68, 0, ROT0, "IGS", "Mahjong Shuang Long Qiang Zhu 2", GAME_NOT_WORKING )
GAME( 1997, sdmg2, 0, igs_m68, igs_m68, 0, ROT0, "IGS", "Mahjong Super Da Man Guan 2", GAME_NOT_WORKING )