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improve sound cpu decryption by cross referencing code between sets, marked as working (nw)

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This commit is contained in:
David Haywood 2014-03-29 16:23:26 +00:00
parent 8c0312daa2
commit d86634d4a2
2 changed files with 5 additions and 5 deletions
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4
src/mame/drivers/m107.c
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@ -1011,8 +1011,8 @@ DRIVER_INIT_MEMBER(m107_state,wpksoc)
/***************************************************************************/
GAME( 1993, firebarr, 0, firebarr, firebarr, m107_state, firebarr, ROT270, "Irem", "Fire Barrel (Japan)", GAME_NO_COCKTAIL )
GAME( 1993, airass, firebarr, airass, firebarr, m107_state, firebarr, ROT270, "Irem", "Air Assault (World)", GAME_NO_COCKTAIL | GAME_NOT_WORKING ) // possible location test, but sound code is newer than Japan version
GAME( 1993, airass, 0, airass, firebarr, m107_state, firebarr, ROT270, "Irem", "Air Assault (World)", GAME_NO_COCKTAIL ) // possible location test, but sound code is newer than Japan version
GAME( 1993, firebarr, airass, firebarr, firebarr, m107_state, firebarr, ROT270, "Irem", "Fire Barrel (Japan)", GAME_NO_COCKTAIL )
GAME( 1994, dsoccr94, 0, dsoccr94, dsoccr94, m107_state, dsoccr94, ROT0, "Irem (Data East Corporation license)", "Dream Soccer '94 (World, M107 hardware)", GAME_NO_COCKTAIL )

6
src/mame/machine/irem_cpu.c
View File

@ -60,12 +60,12 @@ const UINT8 gunforce_decryption_table[256] = {
0x8a,xxxx,xxxx,xxxx,0x3a,0x3c,0x5a,0x38, 0x99,xxxx,0xf8,0x89,xxxx,0x91,xxxx,0x55, /* 20 */
0xac,0x40,0x73,xxxx,0x59,xxxx,0xfc,xxxx, 0x50,0xfa,xxxx,0x25,xxxx,0x34,0x47,0xb7, /* 30 */
xxxx,xxxx,xxxx,0x49,xxxx,0x0f,0x8b,0x05, 0xc3,0xa5,0xbf,0x83,0x86,0xc5,xxxx,xxxx, /* 40 */
0x28,0x77,0x24,0xb4,xxxx,0x92,xxxx,0x3b, 0x5e,0xb6,0x80,0x0d,0x2e,0xab,0xe7,xxxx, /* 50 */
0x08,0x77,0x24,0xb4,xxxx,0x92,xxxx,0x3b, 0x5e,0xb6,0x80,0x0d,0x2e,0xab,0xe7,xxxx, /* 50 */
0x48,xxxx,0xad,0xc0,xxxx,0x1b,0xc6,0xa3, 0x04,xxxx,xxxx,xxxx,0x16,0xb0,0x7d,0x98, /* 60 */
0x87,0x46,0x8c,xxxx,xxxx,0xfe,xxxx,0xcf, xxxx,0x68,0x84,xxxx,0xd2,xxxx,0x18,0x51, /* 70 */
0x76,0xa4,0x36,0x52,0xfb,xxxx,0xb9,xxxx, xxxx,0xb1,0x1c,0x21,0xe6,0xb5,0x17,0x27, /* 80 */
0x3d,0x45,0xbe,0xae,xxxx,0x4a,0x0e,0xe5, xxxx,0x58,0x1f,0x61,0xf3,0x02,xxxx,0xe8, /* 90 */
xxxx,xxxx,xxxx,0xf7,0x56,0x96,xxxx,0xbc, 0x4f,xxxx,xxxx,0x79,0xd0,xxxx,0x2a,0x12, /* A0 */
xxxx,xxxx,xxxx,0xf7,0x56,0x96,0xaa,0xbc, 0x4f,xxxx,xxxx,0x79,0xd0,xxxx,0x2a,0x12, /* A0 */
0x4e,0xb8,xxxx,0x41,xxxx,0x90,0xd3,xxxx, 0x2d,0x33,0xf6,xxxx,xxxx,0x14,xxxx,0x32, /* B0 */
0x5d,0xa8,0x53,0x26,0x2b,0x20,0x81,0x75, 0x7f,0x3e,xxxx,xxxx,0x00,0x93,xxxx,0xb2, /* C0 */
0x57,xxxx,0xa0,xxxx,0x39,xxxx,xxxx,0x72, xxxx,0x01,0x42,0x74,0x9c,0x1e,xxxx,0x5b, /* D0 */
@ -74,7 +74,7 @@ const UINT8 gunforce_decryption_table[256] = {
};
// 0x13 (0x29) guess
// 0x18 (0xa9) guess
// 0x50 (0x28) guess
// 0x50 (0x08) guess - changed based on airass
// 0x63 (0xc0) guess
// 0x7e (0x18) opcode is right but arguments could be swapped
// 0xcc (0x00) guess