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317-5000 decryption (same as 315-5177). Reorganised decryption code.
This commit is contained in:
Nicola Salmoria
parent
de67a76a60
commit
df76263805
@ -149,6 +149,7 @@ Tetris - - - - EPR12169 EPR12170 -
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#include "cpu/mcs51/mcs51.h"
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#include "includes/segas16.h"
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#include "machine/8255ppi.h"
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#include "machine/segacrp2.h"
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#include "machine/fd1089.h"
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#include "machine/i8243.h"
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#include "cpu/mcs48/mcs48.h"
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@ -3453,6 +3454,14 @@ static DRIVER_INIT( quartet )
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}
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static DRIVER_INIT( fantzonep )
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{
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system16a_generic_init(machine);
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sega_315_5177_decode(machine, "soundcpu");
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}
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static DRIVER_INIT( sdi )
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{
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segas1x_state *state = (segas1x_state *)machine->driver_data;
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@ -3500,7 +3509,7 @@ GAME( 1986, alexkidd, 0, system16a, alexkidd, generic_16a, ROT
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GAME( 1986, alexkidd1, alexkidd, system16a, alexkidd, fd1089a_16a, ROT0, "Sega", "Alex Kidd: The Lost Stars (set 1, FD1089A 317-0021)", GAME_SUPPORTS_SAVE )
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GAME( 1986, fantzone, 0, system16a_no7751, fantzone, generic_16a, ROT0, "Sega", "Fantasy Zone (Rev A, unprotected)", GAME_SUPPORTS_SAVE )
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GAME( 1986, fantzone1, fantzone, system16a_no7751, fantzone, generic_16a, ROT0, "Sega", "Fantasy Zone (unprotected)", GAME_SUPPORTS_SAVE )
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GAME( 1986, fantzonep, fantzone, system16a_no7751, fantzone, generic_16a, ROT0, "Sega", "Fantasy Zone (317-5000)", GAME_SUPPORTS_SAVE | GAME_NO_SOUND )
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GAME( 1986, fantzonep, fantzone, system16a_no7751, fantzone, fantzonep, ROT0, "Sega", "Fantasy Zone (317-5000)", GAME_SUPPORTS_SAVE )
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GAME( 1988, passsht16a, passsht, system16a, passsht16a, passsht16a, ROT270, "Sega", "Passing Shot (Japan, 4 Players, System 16A, FD1094 317-0071)", GAME_SUPPORTS_SAVE )
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GAME( 1987, sdi, 0, system16a_no7751, sdi, sdi, ROT0, "Sega", "SDI - Strategic Defense Initiative (Japan, old, System 16A, FD1089B 317-0027)", GAME_SUPPORTS_SAVE )
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GAME( 1987, shinobi, 0, system16a, shinobi, generic_16a, ROT0, "Sega", "Shinobi (set 6, System 16A, unprotected)", GAME_SUPPORTS_SAVE )
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@ -29,7 +29,7 @@
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Wonder Boy (set 1)
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315-5178 Wonder Boy (set 2) unencrypted version available
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315-5179 Robo-Wrestle 2001
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317-5000 Fantasy Zone (Sound CPU) same key as 315-5177
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The following games seem to use the same algorithm as the above ones, but
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using a key which almost doesn't change
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@ -45,20 +45,8 @@
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#include "segacrp2.h"
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/******************************************************************************
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New encryption
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This encryption is quite different from the older one. It permutates bits
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D0, D2, D4 and D6, then inverts some of them.
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The permutation and inversion depend on A0, A3, A6, A9, A12, and A14.
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******************************************************************************/
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static void sega_decode_2(running_machine *machine,const char *cputag,
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const UINT8 opcode_xor[64],const int opcode_swap_select[64],
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const UINT8 data_xor[64],const int data_swap_select[64])
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const UINT8 xor_table[128],const int swap_table[128])
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{
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int A;
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static const UINT8 swaptable[24][4] =
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@ -93,12 +81,12 @@ static void sega_decode_2(running_machine *machine,const char *cputag,
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+ (((A >> 9) & 1) << 3) + (((A >> 12) & 1) << 4) + (((A >> 14) & 1) << 5);
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/* decode the opcodes */
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tbl = swaptable[opcode_swap_select[row]];
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decrypted[A] = BITSWAP8(src,7,tbl[0],5,tbl[1],3,tbl[2],1,tbl[3]) ^ opcode_xor[row];
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tbl = swaptable[swap_table[2*row]];
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decrypted[A] = BITSWAP8(src,7,tbl[0],5,tbl[1],3,tbl[2],1,tbl[3]) ^ xor_table[2*row];
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/* decode the data */
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tbl = swaptable[data_swap_select[row]];
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rom[A] = BITSWAP8(src,7,tbl[0],5,tbl[1],3,tbl[2],1,tbl[3]) ^ data_xor[row];
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tbl = swaptable[swap_table[2*row+1]];
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rom[A] = BITSWAP8(src,7,tbl[0],5,tbl[1],3,tbl[2],1,tbl[3]) ^ xor_table[2*row+1];
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}
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}
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@ -106,212 +94,160 @@ static void sega_decode_2(running_machine *machine,const char *cputag,
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void sega_315_5162_decode(running_machine *machine, const char *cputag)
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{
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static const UINT8 opcode_xor[64] =
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static const UINT8 xor_table[128] =
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{
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0x40,0x50,0x44,0x54,0x41,0x51,0x45,0x55,
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0x40,0x50,0x44,0x54,0x41,0x51,0x45,0x55,
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0x40,0x50,0x44,0x54,0x41,0x51,0x45,0x55,
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0x40,0x50,0x44,0x54,0x41,0x51,0x45,0x55,
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0x40,0x50,0x44,0x54,0x41,0x51,0x45,0x55,
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0x40,0x50,0x44,0x54,0x41,0x51,0x45,0x55,
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0x40,0x50,0x44,0x54,0x41,0x51,0x45,0x55,
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0x40,0x50,0x44,0x54,0x41,0x51,0x45,0x55,
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0x40,0x10,0x50,0x04,0x44,0x14,0x54,0x01,0x41,0x11,0x51,0x05,0x45,0x15,0x55,0x00,
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0x40,0x10,0x50,0x04,0x44,0x14,0x54,0x01,0x41,0x11,0x51,0x05,0x45,0x15,0x55,0x00,
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0x40,0x10,0x50,0x04,0x44,0x14,0x54,0x01,0x41,0x11,0x51,0x05,0x45,0x15,0x55,0x00,
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0x40,0x10,0x50,0x04,0x44,0x14,0x54,0x01,0x41,0x11,0x51,0x05,0x45,0x15,0x55,0x00,
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0x40,0x10,0x50,0x04,0x44,0x14,0x54,0x01,0x41,0x11,0x51,0x05,0x45,0x15,0x55,0x00,
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0x40,0x10,0x50,0x04,0x44,0x14,0x54,0x01,0x41,0x11,0x51,0x05,0x45,0x15,0x55,0x00,
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0x40,0x10,0x50,0x04,0x44,0x14,0x54,0x01,0x41,0x11,0x51,0x05,0x45,0x15,0x55,0x00,
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0x40,0x10,0x50,0x04,0x44,0x14,0x54,0x01,0x41,0x11,0x51,0x05,0x45,0x15,0x55,0x00,
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};
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static const UINT8 data_xor[64] =
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static const int swap_table[128] =
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{
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0x10,0x04,0x14,0x01,0x11,0x05,0x15,0x00,
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0x10,0x04,0x14,0x01,0x11,0x05,0x15,0x00,
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0x10,0x04,0x14,0x01,0x11,0x05,0x15,0x00,
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0x10,0x04,0x14,0x01,0x11,0x05,0x15,0x00,
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0x10,0x04,0x14,0x01,0x11,0x05,0x15,0x00,
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0x10,0x04,0x14,0x01,0x11,0x05,0x15,0x00,
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0x10,0x04,0x14,0x01,0x11,0x05,0x15,0x00,
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0x10,0x04,0x14,0x01,0x11,0x05,0x15,0x00,
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};
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static const int opcode_swap_select[64] =
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{
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4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,
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6,6,6,6,6,6,6,6,7,7,7,7,7,7,7,7,
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8,8,8,8,8,8,8,8,9,9,9,9,9,9,9,9,
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10,10,10,10,10,10,10,10,11,11,11,11,11,11,11,11,
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};
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static const int data_swap_select[64] =
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{
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4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,
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6,6,6,6,6,6,6,6,7,7,7,7,7,7,7,7,
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8,8,8,8,8,8,8,8,9,9,9,9,9,9,9,9,
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10,10,10,10,10,10,10,10,11,11,11,11,11,11,11,11,
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4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
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5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
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6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
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7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
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8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
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9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
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10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,
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11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,
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12,
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};
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sega_decode_2(machine,cputag,opcode_xor,opcode_swap_select,data_xor,data_swap_select);
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sega_decode_2(machine,cputag,xor_table,swap_table);
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}
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void sega_315_5177_decode(running_machine *machine, const char *cputag)
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{
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static const UINT8 opcode_xor[64] =
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static const UINT8 xor_table[128] =
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{
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0x04,0x51,0x40,0x01,0x55,0x44,0x05,0x50,0x41,0x00,0x54,0x45,
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0x04,0x51,0x40,0x01,0x55,0x44,0x05,0x50,0x41,0x00,0x54,0x45,
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0x04,0x51,0x40,0x01,0x55,0x44,0x05,0x50,
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0x04,0x51,0x40,0x01,0x55,0x44,0x05,0x50,0x41,0x00,0x54,0x45,
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0x04,0x51,0x40,0x01,0x55,0x44,0x05,0x50,0x41,0x00,0x54,0x45,
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0x04,0x51,0x40,0x01,0x55,0x44,0x05,0x50,
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0x04,0x54,0x51,0x15,0x40,0x44,0x01,0x51,0x55,0x10,0x44,0x41,0x05,0x55,0x50,0x14,0x41,0x45,0x00,0x50,0x54,0x11,0x45,0x40,
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0x04,0x54,0x51,0x15,0x40,0x44,0x01,0x51,0x55,0x10,0x44,0x41,0x05,0x55,0x50,0x14,0x41,0x45,0x00,0x50,0x54,0x11,0x45,0x40,
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0x04,0x54,0x51,0x15,0x40,0x44,0x01,0x51,0x55,0x10,0x44,0x41,0x05,0x55,0x50,0x14,
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0x04,0x54,0x51,0x15,0x40,0x44,0x01,0x51,0x55,0x10,0x44,0x41,0x05,0x55,0x50,0x14,0x41,0x45,0x00,0x50,0x54,0x11,0x45,0x40,
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0x04,0x54,0x51,0x15,0x40,0x44,0x01,0x51,0x55,0x10,0x44,0x41,0x05,0x55,0x50,0x14,0x41,0x45,0x00,0x50,0x54,0x11,0x45,0x40,
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0x04,0x54,0x51,0x15,0x40,0x44,0x01,0x51,0x55,0x10,0x44,0x41,0x05,0x55,0x50,0x14,
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};
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static const UINT8 data_xor[64] =
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static const int swap_table[128] =
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{
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0x54,0x15,0x44,0x51,0x10,0x41,0x55,0x14,0x45,0x50,0x11,0x40,
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0x54,0x15,0x44,0x51,0x10,0x41,0x55,0x14,0x45,0x50,0x11,0x40,
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0x54,0x15,0x44,0x51,0x10,0x41,0x55,0x14,
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0x54,0x15,0x44,0x51,0x10,0x41,0x55,0x14,0x45,0x50,0x11,0x40,
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0x54,0x15,0x44,0x51,0x10,0x41,0x55,0x14,0x45,0x50,0x11,0x40,
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0x54,0x15,0x44,0x51,0x10,0x41,0x55,0x14,
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};
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0,0,0,0,
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1,1,1,1,1,
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2,2,2,2,2,
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3,3,3,3,
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4,4,4,4,4,
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5,5,5,5,5,
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6,6,6,6,6,
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7,7,7,7,7,
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8,8,8,8,
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9,9,9,9,9,
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10,10,10,10,10,
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11,11,11,11,11,
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12,12,12,12,12,
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13,13,
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static const int opcode_swap_select[64] =
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{
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0,0,1,1,1,2,2,3,3,4,4,4,5,5,6,6,
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6,7,7,8,8,9,9,9,10,10,11,11,11,12,12,13,
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8,8,9,9,9,10,10,11,11,12,12,12,13,13,14,14,
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14,15,15,16,16,17,17,17,18,18,19,19,19,20,20,21,
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};
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static const int data_swap_select[64] =
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{
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0,0,1,1,2,2,2,3,3,4,4,5,5,5,6,6,
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7,7,7,8,8,9,9,10,10,10,11,11,12,12,12,13,
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8,8,9,9,10,10,10,11,11,12,12,13,13,13,14,14,
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15,15,15,16,16,17,17,18,18,18,19,19,20,20,20,21,
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8,8,8,8,
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9,9,9,9,9,
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10,10,10,10,10,
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11,11,11,11,
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12,12,12,12,12,
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13,13,13,13,13,
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14,14,14,14,14,
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15,15,15,15,15,
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16,16,16,16,
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17,17,17,17,17,
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18,18,18,18,18,
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19,19,19,19,19,
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20,20,20,20,20,
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21,21,
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};
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sega_decode_2(machine,cputag,opcode_xor,opcode_swap_select,data_xor,data_swap_select);
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sega_decode_2(machine,cputag,xor_table,swap_table);
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}
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void sega_315_5178_decode(running_machine *machine, const char *cputag)
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{
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static const UINT8 opcode_xor[64] =
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static const UINT8 xor_table[128] =
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{
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0x00,0x45,0x11,0x01,0x44,0x10,0x55,0x05,0x41,0x14,0x04,0x40,0x15,0x51,
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0x01,0x44,0x10,0x00,0x45,0x11,0x54,0x04,0x40,0x15,0x05,0x41,0x14,0x50,
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0x00,0x45,0x11,0x01,
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0x00,0x45,0x11,0x01,0x44,0x10,0x55,0x05,0x41,0x14,0x04,0x40,0x15,0x51,
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0x01,0x44,0x10,0x00,0x45,0x11,0x54,0x04,0x40,0x15,0x05,0x41,0x14,0x50,
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0x00,0x45,0x11,0x01,
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0x00,0x55,0x45,0x05,0x11,0x41,0x01,0x14,0x44,0x50,0x10,0x00,0x55,0x15,0x05,0x51,0x41,0x01,0x14,0x44,0x04,0x10,0x40,0x55,0x15,0x05,0x51,0x11,
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0x01,0x54,0x44,0x04,0x10,0x40,0x00,0x15,0x45,0x51,0x11,0x01,0x54,0x14,0x04,0x50,0x40,0x00,0x15,0x45,0x05,0x11,0x41,0x54,0x14,0x04,0x50,0x10,
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0x00,0x55,0x45,0x05,0x11,0x41,0x01,0x14,
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0x00,0x55,0x45,0x05,0x11,0x41,0x01,0x14,0x44,0x50,0x10,0x00,0x55,0x15,0x05,0x51,0x41,0x01,0x14,0x44,0x04,0x10,0x40,0x55,0x15,0x05,0x51,0x11,
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0x01,0x54,0x44,0x04,0x10,0x40,0x00,0x15,0x45,0x51,0x11,0x01,0x54,0x14,0x04,0x50,0x40,0x00,0x15,0x45,0x05,0x11,0x41,0x54,0x14,0x04,0x50,0x10,
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0x00,0x55,0x45,0x05,0x11,0x41,0x01,0x14,
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};
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static const UINT8 data_xor[64] =
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static const int swap_table[128] =
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{
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0x55,0x05,0x41,0x14,0x50,0x00,0x15,0x51,0x01,0x44,0x10,0x55,0x05,0x11,
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0x54,0x04,0x40,0x15,0x51,0x01,0x14,0x50,0x00,0x45,0x11,0x54,0x04,0x10,
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0x55,0x05,0x41,0x14,
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0x55,0x05,0x41,0x14,0x50,0x00,0x15,0x51,0x01,0x44,0x10,0x55,0x05,0x11,
|
||||
0x54,0x04,0x40,0x15,0x51,0x01,0x14,0x50,0x00,0x45,0x11,0x54,0x04,0x10,
|
||||
0x55,0x05,0x41,0x14,
|
||||
};
|
||||
|
||||
static const int opcode_swap_select[64] =
|
||||
{
|
||||
2,
|
||||
5,1,5,1,5,
|
||||
0,4,0,4,0,4,
|
||||
7,3,7,3,7,3,
|
||||
6,2,6,2,6,
|
||||
1,5,1,5,1,5,
|
||||
0,4,0,
|
||||
2,
|
||||
3, 5, 7, 1, 3, 5, 7, 1, 3, 5, 7,
|
||||
0, 2, 4, 6, 0, 2, 4, 6, 0, 2, 4,
|
||||
5, 7, 1, 3, 5, 7, 1, 3, 5, 7, 1, 3,
|
||||
4, 6, 0, 2, 4, 6, 0, 2, 4, 6,
|
||||
8,
|
||||
1, 3, 5, 7, 1, 3, 5, 7, 1, 3, 5,
|
||||
6, 0, 2, 4, 6, 0, 2,
|
||||
|
||||
10,
|
||||
13,9,13,9,13,
|
||||
8,12,8,12,8,12,
|
||||
15,11,15,11,15,11,
|
||||
14,10,14,10,14,
|
||||
9,13,9,13,9,13,
|
||||
8,12,8,
|
||||
};
|
||||
|
||||
static const int data_swap_select[64] =
|
||||
{
|
||||
3,7,3,7,3,7,
|
||||
2,6,2,6,2,
|
||||
5,1,5,1,5,1,
|
||||
4,0,4,0,4,
|
||||
8,
|
||||
3,7,3,7,3,
|
||||
6,2,6,2,
|
||||
|
||||
11,15,11,15,11,15,
|
||||
10,14,10,14,10,
|
||||
13,9,13,9,13,9,
|
||||
12,8,12,8,12,
|
||||
11,13,15, 9,11,13,15, 9,11,13,15,
|
||||
8,10,12,14, 8,10,12,14, 8,10,12,
|
||||
13,15, 9,11,13,15, 9,11,13,15, 9,11,
|
||||
12,14, 8,10,12,14, 8,10,12,14,
|
||||
16,
|
||||
11,15,11,15,11,
|
||||
14,10,14,10,
|
||||
9,11,13,15, 9,11,13,15, 9,11,13,
|
||||
14, 8,10,12,14, 8,10,
|
||||
};
|
||||
|
||||
|
||||
sega_decode_2(machine,cputag,opcode_xor,opcode_swap_select,data_xor,data_swap_select);
|
||||
sega_decode_2(machine,cputag,xor_table,swap_table);
|
||||
}
|
||||
|
||||
|
||||
void sega_315_5179_decode(running_machine *machine, const char *cputag)
|
||||
{
|
||||
static const UINT8 opcode_xor[64] =
|
||||
static const UINT8 xor_table[128] =
|
||||
{
|
||||
0x00,0x41,0x10,0x51,0x04,0x45,0x14, 0x00,0x41,0x10,0x51,0x04,0x45,0x14, 0x55,
|
||||
0x01,0x40,0x11,0x50,0x05,0x44,0x15, 0x01,0x40,0x11,0x50,0x05,0x44,0x15, 0x54,
|
||||
0x00,0x41,
|
||||
0x50,0x05,0x44,0x15,0x54,0x00,0x41, 0x50,0x05,0x44,0x15,0x54,0x00,0x41, 0x10,
|
||||
0x51,0x04,0x45,0x14,0x55,0x01,0x40, 0x51,0x04,0x45,0x14,0x55,0x01,0x40, 0x11,
|
||||
0x50,0x05
|
||||
0x00,0x45,0x41,0x14,0x10,0x55,0x51,0x01,0x04,0x40,0x45,0x11,0x14,0x50,0x00,0x05,0x41,0x44,0x10,0x15,0x51,0x54,0x04,
|
||||
0x00,0x45,0x41,0x14,0x10,0x55,0x05,0x01,0x44,0x40,0x15,0x11,0x54,0x50,0x00,0x05,0x41,0x44,0x10,0x15,0x51,0x01,0x04,
|
||||
0x40,0x45,0x11,0x14,0x50,0x55,0x05,0x01,0x44,0x40,0x15,0x11,0x54,0x04,0x00,0x45,0x41,0x14,
|
||||
0x50,0x00,0x05,0x41,0x44,0x10,0x15,0x51,0x54,0x04,0x00,0x45,0x41,0x14,0x50,0x55,0x05,0x01,0x44,0x40,0x15,0x11,0x54,
|
||||
0x50,0x00,0x05,0x41,0x44,0x10,0x55,0x51,0x01,0x04,0x40,0x45,0x11,0x14,0x50,0x55,0x05,0x01,0x44,0x40,0x15,0x51,0x54,
|
||||
0x04,0x00,0x45,0x41,0x14,0x10,0x55,0x51,0x01,0x04,0x40,0x45,0x11,0x54,0x50,0x00,0x05,0x41,
|
||||
};
|
||||
|
||||
static const UINT8 data_xor[64] =
|
||||
static const int swap_table[128] =
|
||||
{
|
||||
0x45,0x14,0x55,0x01,0x40,0x11,0x50, 0x05,0x44,0x15,0x54,0x00,0x41,0x10, 0x05,
|
||||
0x44,0x15,0x54,0x00,0x41,0x10,0x51, 0x04,0x45,0x14,0x55,0x01,0x40,0x11, 0x04,
|
||||
0x45,0x14,
|
||||
0x00,0x41,0x10,0x51,0x04,0x45,0x14, 0x55,0x01,0x40,0x11,0x50,0x05,0x44, 0x55,
|
||||
0x01,0x40,0x11,0x50,0x05,0x44,0x15, 0x54,0x00,0x41,0x10,0x51,0x04,0x45, 0x54,
|
||||
0x00,0x41
|
||||
};
|
||||
|
||||
static const int opcode_swap_select[64] =
|
||||
{
|
||||
8,11,15,2,6,
|
||||
9,13,1,4,8,11,15,2,6,
|
||||
9,13,1,4,8,11,15,2,6,
|
||||
10,13,1,4,8,11,15,3,6,
|
||||
|
||||
7,2,6,1,5,
|
||||
1,4,0,3,7,2,6,2,5,
|
||||
1,4,0,3,7,2,6,2,5,
|
||||
1,4,0,3,7,3,6,2,5,
|
||||
};
|
||||
|
||||
static const int data_swap_select[64] =
|
||||
{
|
||||
9,13,0,4,8,11,15,2,6,
|
||||
9,13,1,4,8,11,15,2,6,
|
||||
10,13,1,4,8,11,15,2,6,
|
||||
10,13,1,4,8,
|
||||
|
||||
1,4,0,3,7,2,6,1,5,
|
||||
1,4,0,3,7,2,6,2,5,
|
||||
1,4,0,3,7,3,6,2,5,
|
||||
1,4,0,4,7,
|
||||
8, 9,11,13,15, 0, 2, 4, 6,
|
||||
8, 9,11,13,15, 1, 2, 4, 6,
|
||||
8, 9,11,13,15, 1, 2, 4, 6,
|
||||
8, 9,11,13,15, 1, 2, 4, 6,
|
||||
8,10,11,13,15, 1, 2, 4, 6,
|
||||
8,10,11,13,15, 1, 2, 4, 6,
|
||||
8,10,11,13,15, 1, 3, 4, 6,
|
||||
8,
|
||||
7, 1, 2, 4, 6, 0, 1, 3, 5,
|
||||
7, 1, 2, 4, 6, 0, 1, 3, 5,
|
||||
7, 1, 2, 4, 6, 0, 2, 3, 5,
|
||||
7, 1, 2, 4, 6, 0, 2, 3, 5,
|
||||
7, 1, 2, 4, 6, 0, 2, 3, 5,
|
||||
7, 1, 3, 4, 6, 0, 2, 3, 5,
|
||||
7, 1, 3, 4, 6, 0, 2, 4, 5,
|
||||
7,
|
||||
};
|
||||
|
||||
|
||||
sega_decode_2(machine,cputag,opcode_xor,opcode_swap_select,data_xor,data_swap_select);
|
||||
sega_decode_2(machine,cputag,xor_table,swap_table);
|
||||
}
|
||||
|
||||
|
||||
@ -322,61 +258,38 @@ void sega_315_5179_decode(running_machine *machine, const char *cputag)
|
||||
|
||||
******************************************************************************/
|
||||
|
||||
static void sega_decode_317(running_machine *machine, const char *cputag, int order, int opcode_shift, int data_shift)
|
||||
static void sega_decode_317(running_machine *machine, const char *cputag, int shift)
|
||||
{
|
||||
static const UINT8 xor1_317[1+64] =
|
||||
static const UINT8 xor_table[128+3] =
|
||||
{
|
||||
0x54,
|
||||
0x14,0x15,0x41,0x14,0x50,0x55,0x05,0x41,0x01,0x10,0x51,0x05,0x11,0x05,0x14,0x55,
|
||||
0x41,0x05,0x04,0x41,0x14,0x10,0x45,0x50,0x00,0x45,0x00,0x00,0x00,0x45,0x00,0x00,
|
||||
0x54,0x04,0x15,0x10,0x04,0x05,0x11,0x44,0x04,0x01,0x05,0x00,0x44,0x15,0x40,0x45,
|
||||
0x10,0x15,0x51,0x50,0x00,0x15,0x51,0x44,0x15,0x04,0x44,0x44,0x50,0x10,0x04,0x04,
|
||||
0x04,0x54,0x44,0x14,0x15,0x15,0x51,0x41,0x41,0x14,0x10,0x50,0x15,0x55,0x54,0x05,
|
||||
0x04,0x41,0x51,0x01,0x05,0x10,0x55,0x51,0x05,0x05,0x54,0x11,0x45,0x05,0x04,0x14,
|
||||
0x10,0x55,0x01,0x41,0x51,0x05,0x55,0x04,0x45,0x41,0x55,0x14,0x45,0x10,0x04,0x45,
|
||||
0x55,0x50,0x40,0x00,0x11,0x45,0x15,0x00,0x01,0x00,0x40,0x00,0x01,0x45,0x11,0x00,
|
||||
0x45,0x00,0x44,0x54,0x40,0x04,0x05,0x15,0x15,0x10,0x15,0x04,0x01,0x05,0x50,0x11,
|
||||
0x00,0x44,0x44,0x04,0x04,0x01,0x50,0x05,0x51,0x00,0x45,0x44,0x50,0x15,0x54,0x40,
|
||||
0x41,0x45,0x40,0x10,0x14,0x15,0x40,0x51,0x50,0x50,0x45,0x00,0x10,0x15,0x05,0x51,
|
||||
0x50,0x44,0x01,0x15,0x40,0x04,0x01,0x44,0x50,0x44,0x50,0x50,0x50,0x10,0x44,0x04,
|
||||
0x40,0x04,0x10,
|
||||
};
|
||||
|
||||
static const UINT8 xor2_317[2+64] =
|
||||
static const int swap_table[128+3] =
|
||||
{
|
||||
0x04,
|
||||
0x44,
|
||||
0x15,0x51,0x41,0x10,0x15,0x54,0x04,0x51,0x05,0x55,0x05,0x54,0x45,0x04,0x10,0x01,
|
||||
0x51,0x55,0x45,0x55,0x45,0x04,0x55,0x40,0x11,0x15,0x01,0x40,0x01,0x11,0x45,0x44,
|
||||
0x40,0x05,0x15,0x15,0x01,0x50,0x00,0x44,0x04,0x50,0x51,0x45,0x50,0x54,0x41,0x40,
|
||||
0x14,0x40,0x50,0x45,0x10,0x05,0x50,0x01,0x40,0x01,0x50,0x50,0x50,0x44,0x40,0x10,
|
||||
7, 7,12, 1,18,11, 8,23,21,17, 0,23,22, 0,21,15,
|
||||
13,19,21,20,20,12,13,10,20, 0,14,18, 6,18, 3, 5,
|
||||
5,20,20,13, 8, 0,20,18, 4,14, 8, 5,17, 6,22,10,
|
||||
0,21, 0, 1, 6,11,17, 9,17, 3, 9,21, 0, 4,16, 1,
|
||||
13,17,21, 5, 3, 7, 2,16,18,13, 6,19,11,23, 3,20,
|
||||
3, 2,18,10,18,23,19,23, 3,15, 0,10, 5,12, 0, 0,
|
||||
11,22, 8,14, 8, 6, 1,15, 7,11, 2,17,10,15, 8,21,
|
||||
10, 0, 2, 6, 1, 1, 3, 1,12,18,16, 5, 0,15,17,15,
|
||||
10,20, 1,
|
||||
};
|
||||
|
||||
static const int swap1_317[1+64] =
|
||||
{
|
||||
7,
|
||||
1,11,23,17,23, 0,15,19,
|
||||
20,12,10, 0,18,18, 5,20,
|
||||
13, 0,18,14, 5, 6,10,21,
|
||||
1,11, 9, 3,21, 4, 1,17,
|
||||
5, 7,16,13,19,23,20, 2,
|
||||
10,23,23,15,10,12, 0,22,
|
||||
14, 6,15,11,17,15,21, 0,
|
||||
6, 1, 1,18, 5,15,15,20,
|
||||
};
|
||||
|
||||
static const int swap2_317[2+64] =
|
||||
{
|
||||
7,
|
||||
12,
|
||||
18, 8,21, 0,22,21,13,21,
|
||||
20,13,20,14, 6, 3, 5,20,
|
||||
8,20, 4, 8,17,22, 0, 0,
|
||||
6,17,17, 9, 0,16,13,21,
|
||||
3, 2,18, 6,11, 3, 3,18,
|
||||
18,19, 3, 0, 5, 0,11, 8,
|
||||
8, 1, 7, 2,10, 8,10, 2,
|
||||
1, 3,12,16, 0,17,10, 1,
|
||||
};
|
||||
|
||||
if (order)
|
||||
sega_decode_2( machine, cputag, xor2_317+opcode_shift, swap2_317+opcode_shift, xor1_317+data_shift, swap1_317+data_shift );
|
||||
else
|
||||
sega_decode_2( machine, cputag, xor1_317+opcode_shift, swap1_317+opcode_shift, xor2_317+data_shift, swap2_317+data_shift );
|
||||
sega_decode_2( machine, cputag, xor_table + shift, swap_table + shift );
|
||||
}
|
||||
|
||||
void sega_317_0004_decode(running_machine *machine, const char *cputag) { sega_decode_317( machine, cputag, 1, 0, 0 ); }
|
||||
void sega_317_0005_decode(running_machine *machine, const char *cputag) { sega_decode_317( machine, cputag, 0, 0, 1 ); }
|
||||
void sega_317_0006_decode(running_machine *machine, const char *cputag) { sega_decode_317( machine, cputag, 1, 1, 1 ); }
|
||||
void sega_317_0007_decode(running_machine *machine, const char *cputag) { sega_decode_317( machine, cputag, 0, 1, 2 ); }
|
||||
void sega_317_0004_decode(running_machine *machine, const char *cputag) { sega_decode_317( machine, cputag, 0 ); }
|
||||
void sega_317_0005_decode(running_machine *machine, const char *cputag) { sega_decode_317( machine, cputag, 1 ); }
|
||||
void sega_317_0006_decode(running_machine *machine, const char *cputag) { sega_decode_317( machine, cputag, 2 ); }
|
||||
void sega_317_0007_decode(running_machine *machine, const char *cputag) { sega_decode_317( machine, cputag, 3 ); }
|
||||
|
||||
Loading…
Reference in New Issue
Block a user