trunk/src/mame/machine/pgmcrypt.c
| r249193 | r249194 | |
|---|
| 1572 | 1572 | } |
| 1573 | 1573 | } |
| 1574 | 1574 | |
| 1575 | | |
| 1576 | | static UINT8 amazonia_tab[0x100] = { // seems to be correct |
| 1577 | | 0x87, 0x01, 0xd3, 0x6b, 0x79, 0x00, 0xbd, 0x81, 0xc7, 0x8f, 0x9b, 0xd9, 0x3b, 0x53, 0x09, 0x15, |
| 1578 | | 0x05, 0x57, 0x7b, 0x1f, 0x2f, 0x09, 0x47, 0xa1, 0x45, 0x00, 0xf7, 0xbf, 0x3d, 0x59, 0xd1, 0x19, |
| 1579 | | 0xad, 0xd5, 0xa1, 0x03, 0x2d, 0x35, 0xc7, 0x07, 0x09, 0x4f, 0x85, 0x95, 0x2b, 0x3f, 0x89, 0x09, |
| 1580 | | 0x49, 0x85, 0xb9, 0xe7, 0x4b, 0x53, 0x3f, 0x51, 0xff, 0x3b, 0xd5, 0xc9, 0xff, 0xfd, 0x53, 0x25, |
| 1581 | | 0xe3, 0xa9, 0x75, 0xd7, 0xa3, 0xfd, 0xf1, 0x5f, 0x51, 0xfb, 0xbb, 0x09, 0xf5, 0xc9, 0x91, 0xed, |
| 1582 | | 0xc7, 0xcd, 0xc9, 0x25, 0x93, 0x07, 0x63, 0x51, 0x69, 0xb3, 0x4b, 0x47, 0x85, 0x19, 0xe7, 0x1f, |
| 1583 | | 0x7f, 0xb3, 0xe9, 0x5f, 0xb5, 0x8b, 0x57, 0x83, 0xf5, 0xcb, 0xd5, 0xb1, 0x6d, 0xa3, 0x37, 0xbb, |
| 1584 | | 0xd7, 0x67, 0x45, 0x55, 0xe3, 0xdd, 0xcf, 0x97, 0xdd, 0xe9, 0xf1, 0xb5, 0xa7, 0x63, 0xa5, 0xfd, |
| 1585 | | 0xdb, 0x2b, 0x93, 0x13, 0x37, 0x95, 0x0d, 0x69, 0x4d, 0xf7, 0x6d, 0x03, 0x6f, 0x8b, 0x95, 0x69, |
| 1586 | | 0xd5, 0x8b, 0xc3, 0xeb, 0x0f, 0x8b, 0x97, 0x1b, 0xb1, 0x19, 0x5f, 0x89, 0x3d, 0x95, 0xa9, 0xb9, |
| 1587 | | 0x4f, 0x4b, 0x0b, 0x6b, 0x05, 0xd5, 0x2d, 0x0b, 0xb5, 0xb7, 0x19, 0x75, 0xcf, 0x35, 0xc3, 0xef, |
| 1588 | | 0x13, 0x71, 0xdb, 0x61, 0xf3, 0xcb, 0xd3, 0xd7, 0x3f, 0x79, 0x2d, 0x39, 0x21, 0x65, 0x07, 0x49, |
| 1589 | | 0x31, 0x47, 0xe9, 0xdd, 0xf3, 0x03, 0xcf, 0x5f, 0x7f, 0x45, 0x71, 0x83, 0x69, 0x5b, 0xd9, 0x47, |
| 1590 | | 0xef, 0x53, 0x27, 0x2f, 0x63, 0x55, 0x9f, 0xc1, 0xdf, 0x41, 0xf5, 0x41, 0x27, 0x8d, 0xdb, 0xa7, |
| 1591 | | 0xd9, 0x5b, 0xc7, 0xe5, 0xdd, 0xd7, 0x09, 0x5f, 0x09, 0xd7, 0x0d, 0xa1, 0x13, 0xb3, 0xef, 0x67, |
| 1592 | | 0xbb, 0x65, 0x3d, 0xcd, 0x3b, 0xdf, 0x0f, 0xd3, 0xe7, 0xab, 0x4d, 0x15, 0x29, 0xc5, 0x39, 0xc9 |
| 1575 | static UINT8 amazonia_tab[0x100] = { |
| 1576 | 0x86, 0x00, 0xd2, 0x6b, 0x78, 0x79, 0xbc, 0x80, 0xc6, 0x8e, 0x9b, 0xd8, 0x3a, 0x52, 0x09, 0x15, |
| 1577 | 0x05, 0x57, 0x7a, 0x1f, 0x2f, 0x08, 0x47, 0xa0, 0x44, 0x4c, 0xf7, 0xbe, 0x3d, 0x59, 0xd1, 0x18, |
| 1578 | 0xac, 0xd5, 0xa0, 0x03, 0x2c, 0x34, 0xc6, 0x06, 0x08, 0x4e, 0x84, 0x94, 0x2b, 0x3f, 0x88, 0x08, |
| 1579 | 0x48, 0x84, 0xb8, 0xe6, 0x4a, 0x53, 0x3e, 0x51, 0xfe, 0x3b, 0xd4, 0xc8, 0xff, 0xfd, 0x52, 0x25, |
| 1580 | 0xe2, 0xa9, 0x75, 0xd7, 0xa3, 0xfc, 0xf1, 0x5f, 0x50, 0xfa, 0xba, 0x09, 0xf4, 0xc8, 0x90, 0xed, |
| 1581 | 0xc6, 0xcc, 0xc9, 0x25, 0x93, 0x07, 0x63, 0x50, 0x69, 0xb2, 0x4a, 0x47, 0x85, 0x18, 0xe6, 0x1f, |
| 1582 | 0x7f, 0xb3, 0xe8, 0x5f, 0xb4, 0x8a, 0x56, 0x83, 0xf4, 0xca, 0xd5, 0xb1, 0x6d, 0xa3, 0x37, 0xba, |
| 1583 | 0xd7, 0x66, 0x45, 0x54, 0xe2, 0xdc, 0xce, 0x96, 0xdc, 0xe9, 0xf0, 0xb5, 0xa7, 0x62, 0xa5, 0xfd, |
| 1584 | 0xdb, 0x2b, 0x92, 0x13, 0x37, 0x95, 0x0c, 0x69, 0x4d, 0xf7, 0x6c, 0x02, 0x6e, 0x8a, 0x95, 0x68, |
| 1585 | 0xd4, 0x8a, 0xc3, 0xea, 0x0f, 0x8b, 0x96, 0x1b, 0xb1, 0x19, 0x5e, 0x88, 0x3d, 0x94, 0xa9, 0xb9, |
| 1586 | 0x4e, 0x4a, 0x0a, 0x6a, 0x04, 0xd5, 0x2c, 0x0b, 0xb4, 0xb7, 0x18, 0x75, 0xcf, 0x35, 0xc3, 0xef, |
| 1587 | 0x13, 0x71, 0xdb, 0x61, 0xf2, 0xcb, 0xd3, 0xd7, 0x3f, 0x79, 0x2d, 0x39, 0x20, 0x65, 0x07, 0x49, |
| 1588 | 0x30, 0x47, 0xe9, 0xdd, 0xf3, 0x03, 0xce, 0x5f, 0x7f, 0x45, 0x70, 0x82, 0x69, 0x5a, 0xd9, 0x46, |
| 1589 | 0xee, 0x52, 0x27, 0x2f, 0x63, 0x54, 0x9f, 0xc1, 0xde, 0x41, 0xf5, 0x40, 0x26, 0x8d, 0xda, 0xa6, |
| 1590 | 0xd9, 0x5a, 0xc7, 0xe4, 0xdc, 0xd6, 0x09, 0x5e, 0x08, 0xd6, 0x0d, 0xa1, 0x12, 0xb3, 0xee, 0x67, |
| 1591 | 0xbb, 0x65, 0x3c, 0xcd, 0x3a, 0xdf, 0x0f, 0xd3, 0xe6, 0xaa, 0x4d, 0x14, 0x28, 0xc5, 0x38, 0xc8 |
| 1593 | 1592 | }; |
| 1594 | 1593 | |
| 1595 | 1594 | void amazonia_decrypt(running_machine &machine) |
| 1596 | 1595 | { |
| 1597 | | int i; |
| 1598 | | UINT16 *src = (UINT16 *)machine.root_device().memregion("user1")->base(); |
| 1596 | int i; |
| 1597 | UINT16 *src = (UINT16 *) machine.root_device().memregion("user1")->base(); |
| 1599 | 1598 | |
| 1600 | | int rom_size = 0x80000; |
| 1601 | | for (i = 0; i < rom_size / 2; i++) { |
| 1602 | | int x = amazonia_tab[(i / 2) & 0xff] << 8; |
| 1599 | int rom_size = 0x80000; |
| 1603 | 1600 | |
| 1604 | | if ((i & 0x040480) != 0x000080) x ^= 0x0001; |
| 1605 | | if ((i & 0x004008) == 0x004008) x ^= 0x0002; |
| 1606 | | if ((i & 0x080030) == 0x080010) x ^= 0x0004; // pin high?? |
| 1607 | | if ((i & 0x000242) != 0x000042) x ^= 0x0008; |
| 1608 | | if ((i & 0x008100) == 0x008000) x ^= 0x0010; |
| 1609 | | if ((i & 0x022004) != 0x000004) x ^= 0x0020; // verified |
| 1610 | | if ((i & 0x011800) != 0x010000) x ^= 0x0040; |
| 1611 | | if ((i & 0x004820) == 0x004820) x ^= 0x0080; // verified |
| 1601 | for(i=0; i<rom_size/2; i++) { |
| 1602 | UINT16 x = src[i]; |
| 1612 | 1603 | |
| 1613 | | src[i] ^= x; |
| 1614 | | } |
| 1604 | IGS27_CRYPT1 |
| 1605 | IGS27_CRYPT2_ALT |
| 1606 | IGS27_CRYPT3 |
| 1607 | IGS27_CRYPT4 |
| 1608 | IGS27_CRYPT5 |
| 1609 | IGS27_CRYPT6_ALT |
| 1610 | IGS27_CRYPT7 |
| 1611 | IGS27_CRYPT8 |
| 1612 | |
| 1613 | x ^= amazonia_tab[(i >> 1) & 0xff] << 8; |
| 1614 | |
| 1615 | src[i] = x; |
| 1616 | } |
| 1615 | 1617 | } |
| 1616 | 1618 | |
| 1617 | 1619 | // not 100% verified |