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Decrypt a tiny bit of astoneag (nw)

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This commit is contained in:
Luca Elia 2015-03-22 17:29:16 +01:00
parent 2fbc689de9
commit d95761b9cc
1 changed files with 153 additions and 1 deletions
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154
src/mame/drivers/astrcorp.c
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@ -67,6 +67,7 @@ public:
DECLARE_READ16_MEMBER(astrocorp_unk_r);
DECLARE_WRITE16_MEMBER(astrocorp_sound_bank_w);
DECLARE_WRITE16_MEMBER(skilldrp_sound_bank_w);
DECLARE_DRIVER_INIT(astoneag);
DECLARE_DRIVER_INIT(showhanc);
DECLARE_DRIVER_INIT(showhand);
DECLARE_VIDEO_START(astrocorp);
@ -1148,13 +1149,164 @@ DRIVER_INIT_MEMBER(astrocorp_state,showhanc)
#endif
}
DRIVER_INIT_MEMBER(astrocorp_state,astoneag)
{
#if 0
UINT16 *rom = (UINT16*)memregion("maincpu")->base();
UINT16 x;
int i;
for (i = 0x25100/2; i < 0x25200/2; i++)
{
x = 0x0000;
if ( (i & 0x0001) ) x |= 0x0200;
if ( (i & 0x0004) && !(i & 0x0001) ) x |= 0x0080;
if ( (i & 0x0040) || (i & 0x0001) ) x |= 0x0040;
if ( (i & 0x0010) && !(i & 0x0001) ) x |= 0x0020;
if ( !(i & 0x0020) || (i & 0x0001) ) x |= 0x0010;
if ( (i & 0x0002) || (i & 0x0001) ) x |= 0x0008;
if ( (i & 0x0008) && !(i & 0x0001) ) x |= 0x0004;
if ( !(i & 0x0040) && !(i & 0x0001) ) x |= 0x0002;
if ( (i & 0x0040) && !(i & 0x0001) ) x |= 0x0001;
rom[i] ^= x;
}
/*
for (i = 0x25300/2; i < 0x25400/2; i++)
{
x = 0x1300;
rom[i] ^= x;
}
*/
for (i = 0x25400/2; i < 0x25500/2; i++)
{
x = 0x4200;
if ( (i & 0x0001) ) x |= 0x0400;
if ( (i & 0x0020) && !(i & 0x0001) ) x |= 0x0080;
if ( !(i & 0x0010) || (i & 0x0001) ) x |= 0x0040;
if ( (i & 0x0040) && !(i & 0x0001) ) x |= 0x0020;
if ( !(i & 0x0004) || (i & 0x0001) ) x |= 0x0010;
if ( !(i & 0x0040) && !(i & 0x0001) ) x |= 0x0004;
if ( (i & 0x0008) && !(i & 0x0001) ) x |= 0x0002;
if ( (i & 0x0002) || (i & 0x0001) ) x |= 0x0001;
rom[i] ^= x;
}
for (i = 0x25500/2; i < 0x25600/2; i++)
{
x = 0x4200;
if ( (i & 0x0001) ) x |= 0x0400;
if ( (i & 0x0010) && !(i & 0x0001) ) x |= 0x0080;
if ( (i & 0x0040) && !(i & 0x0001) ) x |= 0x0040;
if ( !(i & 0x0002) && !(i & 0x0001) ) x |= 0x0020;
if ( !(i & 0x0040) && !(i & 0x0001) ) x |= 0x0010;
if ( (i & 0x0008) && !(i & 0x0001) ) x |= 0x0008;
if ( (i & 0x0020) && !(i & 0x0001) ) x |= 0x0004;
if ( (i & 0x0004) && !(i & 0x0001) ) x |= 0x0002;
if ( (i & 0x0001) ) x |= 0x0001;
rom[i] ^= x;
}
/*
for (i = 0x25700/2; i < 0x25800/2; i++)
{
x = 0x6800;
if ( !(i & 0x0001) ) x |= 0x8000;
if ( !(i & 0x0040) || ((i & 0x0001) || !(i & 0x0001)) ) x |= 0x0100;
rom[i] ^= x;
}
*/
for (i = 0x25800/2; i < 0x25900/2; i++)
{
x = 0x8300;
if ( (i & 0x0040) || (i & 0x0001) ) x |= 0x2000;
if ( (i & 0x0002) || (i & 0x0001) ) x |= 0x0080;
if ( !(i & 0x0040) && !(i & 0x0001) ) x |= 0x0040;
if ( (i & 0x0020) && !(i & 0x0001) ) x |= 0x0020;
if ( !(i & 0x0004) || (i & 0x0001) ) x |= 0x0010;
if ( !(i & 0x0040) && !(i & 0x0001) ) x |= 0x0008;
if ( (i & 0x0010) && !(i & 0x0001) ) x |= 0x0004;
if ( (i & 0x0008) && !(i & 0x0001) ) x |= 0x0002;
if ( !(i & 0x0040) && !(i & 0x0001) ) x |= 0x0001;
rom[i] ^= x;
}
// for (i = 0x25900/2; i < 0x25a00/2; i++)
for (i = 0x25c00/2; i < 0x25d00/2; i++)
{
// changed from 25400
// x = 0x4200;
x = 0x4000;
// if ( (i & 0x0001) ) x |= 0x0400;
if ( (i & 0x0020) && !(i & 0x0001) ) x |= 0x0080;
if ( !(i & 0x0010) || (i & 0x0001) ) x |= 0x0040;
if ( (i & 0x0040) && !(i & 0x0001) ) x |= 0x0020;
if ( !(i & 0x0004) || (i & 0x0001) ) x |= 0x0010;
if ( !(i & 0x0040) && !(i & 0x0001) ) x |= 0x0004;
if ( (i & 0x0008) && !(i & 0x0001) ) x |= 0x0002;
if ( (i & 0x0002) || (i & 0x0001) ) x |= 0x0001;
rom[i] ^= x;
}
/*
for (i = 0x25d00/2; i < 0x25e00/2; i++)
{
x = 0x4000;
if ( !(i & 0x0040) ) x |= 0x0800;
if ( !(i & 0x0040) && !(i & 0x0001) ) x |= 0x0100; // almost!!
if ( ((i & 0x0040)&&((i & 0x0020)||(i & 0x0010))) || !(i & 0x0001) ) x |= 0x0200; // almost!!
if ( (!(i & 0x0040) || !(i & 0x0008)) && !(i & 0x0001) ) x |= 0x0008;
if ( (i & 0x0040) || !(i & 0x0020) || (i & 0x0001) ) x |= 0x0001; // almost!!
rom[i] ^= x;
}
*/
/*
for (i = 0x25e00/2; i < 0x25f00/2; i++)
{
x = 0xa600;
if ( (i & 0x0040) && (i & 0x0001) ) x |= 0x4000;
if ( (i & 0x0040) && (i & 0x0001) ) x |= 0x0800;
if ( !(i & 0x0001) ) x |= 0x0100;
if ( ( (i & 0x0040) && (i & 0x0008) && !(i & 0x0001)) ||
( !(i & 0x0040) && ((i & 0x0004) ^ (i & 0x0002)) && !(i & 0x0001) ) ) x |= 0x0002; // almost!!
if ( !(i & 0x0040) || !(i & 0x0002) || (i & 0x0001) ) x |= 0x0001;
rom[i] ^= x;
}
*/
for (i = 0x26f00/2; i < 0x27000/2; i++)
{
x = 0xb94c;
rom[i] ^= x;
}
for (i = 0x27000/2; i < 0x27100/2; i++)
{
x = 0x5f10;
rom[i] ^= x;
}
#endif
}
GAME( 2000, showhand, 0, showhand, showhand, astrocorp_state, showhand, ROT0, "Astro Corp.", "Show Hand (Italy)", GAME_SUPPORTS_SAVE )
GAME( 2000, showhanc, showhand, showhanc, showhanc, astrocorp_state, showhanc, ROT0, "Astro Corp.", "Wang Pai Dui Jue (China)", GAME_SUPPORTS_SAVE )
GAME( 2002, skilldrp, 0, skilldrp, skilldrp, driver_device, 0, ROT0, "Astro Corp.", "Skill Drop Georgia (Ver. G1.0S)", GAME_SUPPORTS_SAVE )
GAME( 2003, speeddrp, 0, speeddrp, skilldrp, driver_device, 0, ROT0, "Astro Corp.", "Speed Drop (Ver. 1.06)", GAME_SUPPORTS_SAVE )
// Encrypted games (not working):
GAME( 2004?, astoneag, 0, skilldrp, skilldrp, driver_device, 0, ROT0, "Astro Corp.", "Stone Age (Astro, Ver. ENG.03.A)", GAME_NOT_WORKING )
GAME( 2004?, astoneag, 0, skilldrp, skilldrp, astrocorp_state, astoneag, ROT0, "Astro Corp.", "Stone Age (Astro, Ver. ENG.03.A)", GAME_NOT_WORKING )
GAME( 2005?, winbingo, 0, skilldrp, skilldrp, driver_device, 0, ROT0, "Astro Corp.", "Win Win Bingo (set 1)", GAME_NOT_WORKING )
GAME( 2005?, winbingoa, winbingo, skilldrp, skilldrp, driver_device, 0, ROT0, "Astro Corp.", "Win Win Bingo (set 2)", GAME_NOT_WORKING )
GAME( 2005?, hacher, winbingo, skilldrp, skilldrp, driver_device, 0, ROT0, "bootleg (Gametron)", "Hacher (hack of Win Win Bingo)", GAME_NOT_WORKING )