Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-10-05 16:50:57 +03:00
Code Issues Actions 3 Packages Projects Releases Wiki Activity

cb2001 more decrypted opcodes

Browse Source
This commit is contained in:
Roberto Zandona 2009-12-21 22:17:25 +00:00
parent 432b5eca8e
commit 1becf25fd5
1 changed files with 48 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

65
src/mame/drivers/cb2001.c
View File

@ -48,36 +48,36 @@ In test mode (c) is 2000
static const UINT8 cb2001_decryption_table[256] = {
0xe8,xxxx,xxxx,xxxx,xxxx,0x61,xxxx,xxxx, 0x3c,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx, /* 00 */
// pppp ???? pppp
xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx, 0x32,xxxx,0xa0,xxxx,0x3a,xxxx,xxxx,xxxx, /* 10 */
// pppp ???? pppp ????
xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx, 0x32,xxxx,0xa0,xxxx,0x3a,xxxx,0x89,xxxx, /* 10 */
// pppp ???? pppp pppp ????
xxxx,0x8e,xxxx,0x0f,xxxx,0x49,0xbc,xxxx, xxxx,xxxx,xxxx,0x75,xxxx,xxxx,xxxx,xxxx, /* 20 */
// !!!! ???? ???? ???? pppp
0x9d,xxxx,xxxx,xxxx,xxxx,xxxx,0xbe,xxxx, xxxx,xxxx,0x74,xxxx,xxxx,0xa6,0xbf,0x74, /* 30 */
// ???? ???? ???? ???? ???? pppp
xxxx,0xea,xxxx,xxxx,xxxx,0xb0,xxxx,xxxx, xxxx,0xa2,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx, /* 40 */
// !!!! gggg pppp
xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,0x42,xxxx, xxxx,xxxx,xxxx,xxxx,0xeb,xxxx,xxxx,xxxx, /* 50 */
// ???? pppp
xxxx,xxxx,xxxx,xxxx,0x22,xxxx,xxxx,xxxx, xxxx,0xa5,xxxx,xxxx,xxxx,xxxx,0xba,xxxx, /* 60 */
// pppp ???? gggg
0xc3,xxxx,0x02,xxxx,xxxx,xxxx,xxxx,xxxx, 0x72,xxxx,0xf2,xxxx,xxxx,xxxx,xxxx,xxxx, /* 70 */
// pppp pppp ???? ????
xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,0x34, xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx, /* 80 */
// ????
xxxx,xxxx,0x2a,xxxx,xxxx,xxxx,0x42,xxxx, xxxx,xxxx,xxxx,xxxx,0xeb,xxxx,xxxx,xxxx, /* 50 */
// pppp ???? pppp
xxxx,xxxx,xxxx,xxxx,0x22,xxxx,xxxx,xxxx, xxxx,0xa5,xxxx,xxxx,xxxx,0xbb,0xba,xxxx, /* 60 */
// pppp ???? pppp gggg
0xc3,xxxx,0x02,xxxx,xxxx,xxxx,0x24,xxxx, 0x72,xxxx,0xf2,xxxx,xxxx,xxxx,xxxx,xxxx, /* 70 */
// pppp pppp pppp pppp ????
xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,0x34, xxxx,xxxx,xxxx,xxxx,0x73,xxxx,xxxx,xxxx, /* 80 */
// ???? pppp
xxxx,xxxx,0xe9,xxxx,xxxx,0xbe,xxxx,xxxx, xxxx,xxxx,xxxx,xxxx,0xb9,xxxx,xxxx,xxxx, /* 90 */
// ???? pppp pppp
xxxx,xxxx,xxxx,0x06,0xaa,0x9c,xxxx,0xb8, xxxx,xxxx,0xfc,xxxx,xxxx,xxxx,xxxx,xxxx, /* A0 */
// ???? ???? ???? !!!! ????
0x75,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx, xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,0x07,0xcf, /* B0 */
// ???? ???? ???? ????
0x75,xxxx,0xb4,xxxx,xxxx,xxxx,xxxx,xxxx, xxxx,xxxx,0x03,xxxx,xxxx,xxxx,0x07,0xcf, /* B0 */
// ???? pppp pppp ???? ???? ????
xxxx,xxxx,0xee,xxxx,xxxx,0xe2,xxxx,xxxx, xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,0xa4,xxxx, /* C0 */
// ???? pppp ????
xxxx,xxxx,0x46,xxxx,0x60,xxxx,xxxx,xxxx, 0x88,xxxx,xxxx,xxxx,xxxx,0xfa,0xc7,xxxx, /* D0 */
// pppp ???? pppp ???? !!!!
xxxx,xxxx,0x46,xxxx,0x60,xxxx,xxxx,xxxx, 0x88,xxxx,xxxx,xxxx,xxxx,0xfa,0xc7,0x8b, /* D0 */
// pppp ???? pppp ???? !!!! pppp
0x8a,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 */
//
// pppp !!!!
xxxx,xxxx,0xfe,xxxx,xxxx,xxxx,xxxx,xxxx, xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx,xxxx, /* F0 */
// pppp
};
/* robiza's notes:
@ -123,8 +123,39 @@ cmv4 cb2001 (en -> de)
4aa4 jr $4abe e66e7 br 0e6703h (5c -> eb)
4aa6 add a,a e66e9 add al,al (72 -> 02)
4aa7 ld e,a .
4aa8 ld d,$00 e66eb mov ah,00h (b2 -> b4)
4aaa ld hl,$4b62 e66ed mov bw,67cbh (6d -> bb)
4aad add lh,de e66f0 add bw,aw (ba -> 03)
4aae ld e,(hl) CE ????????
4aaf inc hl .
4abo ld d,(hl) .
4ab1 ex de,hl e66f3 mov bw,w ptr[bw] (df -> 8b)
4ab2 xor a .
4ab3 ld ($d618),a e66f5 mov b ptr[72dh],ah (d8 -> 88)
4ab6 ld ($d619),a e66f9 mov b ptr[72eh],ah
4ab9 ld ($d61a),hl e66fd mov w ptr[72fh],bw (1e -> 89)
4abc jr $4ac9 e6701 br 0e6712h
4abe ld a,($d619) e6703 mov al,[72eh]
4ac1 and a e6706 and al,al
4ac2 jr z,$4ac9 e6708 be 0e6712h
4ac4 dec a e670a dec al (f2 -> fe)
4ac5 ld ($d619),a e670c mov [72eh],al
. e670f be 0e6712h
4ac8 ret nz e6711 ret (70 -> c3)
4ace cp $f0 e671f cmp al,0f0h
4ad0 jr nc,$4b14 e6721 bnc ??? (8c -> 73)
4add sub $50 e672f sub al,50h (52 -> 2a)
4adf cp $50 e6731 cmp al,50h
4ae1 jr c,$4ae7 e6733 bc 0e6739 (78 -> 72)
4ae3 ld b,$04 e6735 26 04
4ae5 sub $50 e6737 sub al,50h
4ae7 ld c,a e6739 mov cl,al (e0 -> 8a)
4ae8 and $0f e673b and al,0fh (76 -> 24)
4aea add a,a e673d add al,al
-------------------------------------------------