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Decrypted Mahjong Shuang Long Qiang Zhu 2 and Mahjong Super Da Man Guan 2

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This commit is contained in:
Pierpaolo Prazzoli 2008-08-25 20:13:21 +00:00
parent 96d622b677
commit dd914fb758
1 changed files with 136 additions and 7 deletions
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143
src/mame/drivers/igs_m68.c
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@ -11,8 +11,6 @@ Others use
IGS017
IGS029
All of these have encrypted program roms, which will need decrypting
*/
#include "driver.h"
@ -30,6 +28,7 @@ static VIDEO_UPDATE(igs_m68)
static ADDRESS_MAP_START( igs_m68_map, ADDRESS_SPACE_PROGRAM, 16 )
AM_RANGE(0x000000, 0x07ffff) AM_ROM
AM_RANGE(0x100000, 0x103fff) AM_RAM //to test the decryption
AM_RANGE(0x300000, 0x303fff) AM_RAM //to test the decryption
AM_RANGE(0x500000, 0x503fff) AM_RAM //to test the decryption
ADDRESS_MAP_END
@ -241,7 +240,7 @@ Notes:
ROM_START( slqz2 )
ROM_REGION( 0x80000, "main", 0 ) /* 68000 Code */
ROM_LOAD( "p1100.u28", 0x00000, 0x80000, CRC(0b8e5c9e) SHA1(16572bd1163bba4da8a76b10649d2f71e50ad369) )
ROM_LOAD16_WORD_SWAP( "p1100.u28", 0x00000, 0x80000, CRC(0b8e5c9e) SHA1(16572bd1163bba4da8a76b10649d2f71e50ad369) )
ROM_REGION( 0x80000, "oki", 0 ) /* Samples */
ROM_LOAD( "s1102.u20", 0x00000, 0x80000, CRC(51ffe245) SHA1(849011b186096add657ab20d49d260ec23363ef3) ) // = s1102.u23 Mahjong Long Hu Zheng Ba 2
@ -263,7 +262,7 @@ PCB Layout
IGS PCB NO-0147-6
|---------------------------------------|
| UPC1242H S0903.U15 BATTERY|
| UPC1242H S0903.U15 BATTERY |
| VOL SPDT_SW |
| |
| K668 6264 |
@ -299,7 +298,7 @@ Notes:
ROM_START( sdmg2 )
ROM_REGION( 0x80000, "main", 0 ) /* 68000 Code */
ROM_LOAD( "p0900.u25", 0x00000, 0x80000,CRC(43366f51) SHA1(48dd965dceff7de15b43c2140226a8b17a792dbc) )
ROM_LOAD16_WORD_SWAP( "p0900.u25", 0x00000, 0x80000,CRC(43366f51) SHA1(48dd965dceff7de15b43c2140226a8b17a792dbc) )
ROM_REGION( 0x80000, "oki", 0 ) /* Samples */
ROM_LOAD( "s0903.u15", 0x00000, 0x80000, CRC(ae5a441c) SHA1(923774ef73ab0f70e0db1738a4292dcbd70d2384) )
@ -506,6 +505,136 @@ static DRIVER_INIT( mgcs )
x ^= 0x0100;
}
src[i] = x;
}
}
static DRIVER_INIT( slqz2 )
{
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];
/* bit 0 xor layer */
if( i & 0x20/2 )
{
if( i & 0x02/2 )
{
x ^= 0x0001;
}
}
if( !(i & 0x4000/2) )
{
if( !(i & 0x300/2) )
{
x ^= 0x0001;
}
}
/* bit 14 xor layer */
if( i & 0x1000/2 )
{
if( i & 0x800/2 )
{
x ^= 0x4000;
}
else
{
if( i & 0x200/2 )
{
if( !(i & 0x100/2) )
{
if( i & 0x40/2 )
{
x ^= 0x4000;
}
}
}
else
{
x ^= 0x4000;
}
}
}
else
{
if( i & 0x800/2 )
{
x ^= 0x4000;
}
else
{
if( !(i & 0x100/2) )
{
if( i & 0x40/2 )
{
x ^= 0x4000;
}
}
}
}
src[i] = x;
}
}
static DRIVER_INIT( sdmg2 )
{
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];
/* bit 0 xor layer */
if( i & 0x20/2 )
{
if( i & 0x02/2 )
{
x ^= 0x0001;
}
}
if( !(i & 0x4000/2) )
{
if( !(i & 0x300/2) )
{
x ^= 0x0001;
}
}
/* bit 9 xor layer */
if( i & 0x20000/2 )
{
x ^= 0x0200;
}
else
{
if( !(i & 0x400/2) )
{
x ^= 0x0200;
}
}
/* bit 12 xor layer */
if( i & 0x20000/2 )
{
x ^= 0x1000;
}
src[i] = x;
}
@ -514,6 +643,6 @@ static DRIVER_INIT( mgcs )
GAME( 1998, lhzb2, 0, igs_m68, igs_m68, lhzb2, ROT0, "IGS", "Mahjong Long Hu Zheng Ba 2 (set 1)", GAME_NOT_WORKING )
GAME( 1998, lhzb2a, lhzb2, igs_m68, igs_m68, lhzb2a, ROT0, "IGS", "Mahjong Long Hu Zheng Ba 2 (set 2)", 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 )
GAME( 1998, slqz2, 0, igs_m68, igs_m68, slqz2, ROT0, "IGS", "Mahjong Shuang Long Qiang Zhu 2", GAME_NOT_WORKING )
GAME( 1997, sdmg2, 0, igs_m68, igs_m68, sdmg2, ROT0, "IGS", "Mahjong Super Da Man Guan 2", GAME_NOT_WORKING )