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cb2001: added new opcodes

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This commit is contained in:
Roberto Zandona 2009-01-01 20:29:31 +00:00
parent b7ef380a5d
commit 542d0fa5c3
1 changed files with 37 additions and 24 deletions
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29
src/mame/drivers/cb2001.c
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@ -48,10 +48,10 @@ const UINT8 cb2001_decryption_table[256] = {
0xe8,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx, xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx, /* 00 */
// pppp
xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx, 0x32,xxxx,xxxx,xxxx,0x3a,xxxx,xxxx,xxxx, /* 10 */
// ???? ????
xxxx,0x8e,xxxx,xxxx,xxxx,0x49,xxxx,xxxx, xxxx,xxxx,xxxx,0x75,xxxx,xxxx,xxxx,xxxx, /* 20 */
// !!!! ???? pppp
xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,0xbe,xxxx, xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,0xb0,xxxx, /* 30 */
// pppp pppp
xxxx,0x8e,xxxx,xxxx,xxxx,0x49,0xbf,xxxx, xxxx,xxxx,xxxx,0x75,xxxx,xxxx,xxxx,xxxx, /* 20 */
// !!!! ???? ???? pppp
xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,0xbe,xxxx, xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,0xbf,xxxx, /* 30 */
// pppp ????
xxxx,0xea,xxxx,xxxx,xxxx,0xb0,xxxx,xxxx, xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx, /* 40 */
// !!!! gggg
@ -72,7 +72,7 @@ const UINT8 cb2001_decryption_table[256] = {
xxxx,xxxx,0xee,xxxx,xxxx,0xe2,xxxx,xxxx, xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx, /* C0 */
// ???? pppp
xxxx,xxxx,0x46,xxxx,xxxx,xxxx,xxxx,xxxx, 0x88,xxxx,xxxx,xxxx,xxxx,0xfa,0xc7,xxxx, /* D0 */
// ???? ???? ???? !!!!
// pppp pppp ???? !!!!
0xb0,xxxx,xxxx,0xc6,xxxx,xxxx,xxxx,xxxx, xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx, /* E0 */
// ???? !!!!
xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx, xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx, /* F0 */
@ -102,20 +102,33 @@ c2 -> ee (out dw,al)
probably:
00 -> e8 (call)
2b -> conditional jmp for sure (75)
36 -> be
41 -> ea (jmp_far)
70 -> c3 (ret)
9c -> it's a counter (like mov cw,#value) -> not sure the register (cw,bw,....) -> b9 (cw)
c5 -> 75 (loop?)
very probably:
00 -> e8 (call)
41 -> ea (jmp_far)
70 -> c3 (ret)
checked against gussun and quizf1 (start up code):
21 -> 8e
a7 -> b8
de -> c7
e3 -> c6
opcodes: 36,9c,00,18,d8,d2,c5,70 probably:
e1af1 36 62 06 mov ix,0662
9c 04 00 mov cw,0004
00 94 17 call e328e
e328e 18 c0 xor al,al
d8 04 mov byte ptr [ix],al
d2 inc ix
c5 fb dbnz e3290
70 ret
*/