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AXWii ucode: more comments.

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4335 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
luigi2us 2009-09-27 14:22:40 +00:00
parent b4e12ad5c9
commit 0423406a67
1 changed files with 75 additions and 62 deletions
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137
docs/DSP/DSP_UC_AXWii.txt
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@ -1,3 +1,6 @@
// Memory map:
// 0x0C00: current AXList
0000 0000 nop
0001 0000 nop
@ -31,12 +34,12 @@ void 0010_Entry() {
0027 00fe 0ce9 sr @0x0ce9, $AC0.M
0029 8900 clr $ACC1
002a 16fc dcd1 si @DMBH, #0xdcd1
s 002c 16fd 0000 si @DMBL, #0x0000
002e 16fb 0001 si @DIRQ, #0x0001
002c 16fd 0000 si @DMBL, #0x0000
002e 16fb 0001 si @DIRQ, #0x0001 // send a 0xDCD10000 and trigger an IRQ
0030 26fc lrs $AC0.M, @DMBH
0031 02a0 8000 andf $AC0.M, #0x8000
0033 029c 0030 jlnz 0x0030
0035 029f 004c jmp 0x004c
0033 029c 0030 jlnz 0x0030 // wait until the mail is received by CPU
0035 029f 004c jmp 0x004c // enter the main loop
}
void 0037_Unk_Restart() {
@ -51,35 +54,37 @@ void 0037_Unk_Restart() {
003f 0092 00ff lri $CR, #0x00ff
0041 16fc dcd1 si @DMBH, #0xdcd1
0043 16fd 0001 si @DMBL, #0x0001
0045 16fb 0001 si @DIRQ, #0x0001
0045 16fb 0001 si @DIRQ, #0x0001 // send a 0xDCD10001 and trigger an IRQ
0047 26fc lrs $AC0.M, @DMBH
0048 02a0 8000 andf $AC0.M, #0x8000
004a 029c 0047 jlnz 0x0047
004a 029c 0047 jlnz 0x0047 // wait until the mail is received by CPU
// main loop
004c 8e00 set16
004d 8100 clr $ACC0
004e 8900 clr $ACC1
004f 009f babe lri $AC1.M, #0xbabe
0051 26fe lrs $AC0.M, @CMBH
0052 02c0 8000 andcf $AC0.M, #0x8000
0054 029c 0051 jlnz 0x0051
0054 029c 0051 jlnz 0x0051 // wait until we get a new mail from CPU
0056 8200 cmp
0057 0294 0051 jnz 0x0051
0059 23ff lrs $AX1.H, @CMBL
0057 0294 0051 jnz 0x0051 // discard it if it's not a 0xBABE---- (AXList begin)
0059 23ff lrs $AX1.H, @CMBL // AX1.H = low part of 0xBABE---- mail = length of list in bytes
005a 8100 clr $ACC0
005b 26fe lrs $AC0.M, @CMBH
005c 02c0 8000 andcf $AC0.M, #0x8000
005e 029c 005b jlnz 0x005b
005e 029c 005b jlnz 0x005b // wait until the next mail
0060 27ff lrs $AC1.M, @CMBL
0061 0240 7fff andi $AC0.M, #0x7fff
0061 0240 7fff andi $AC0.M, #0x7fff // AC0.M = address high part, AC1.M = address low part
0063 2ece srs @DSMAH, $AC0.M
0064 2fcf srs @DSMAL, $AC1.M
0065 16cd 0c00 si @DSPA, #0x0c00
0067 8100 clr $ACC0
0068 2ec9 srs @DSCR, $AC0.M
0069 1ffb mrr $AC1.M, $AX1.H
006a 2fcb srs @DSBL, $AC1.M
006b 02bf 0084 call 0084_WaitForMail()
006d 0080 0c00 lri $AR0, #0x0c00
0069 1ffb mrr $AC1.M, $AX1.H // Transfer the AXList
006a 2fcb srs @DSBL, $AC1.M // DMA transfer from main memory (addr = second mail) to 0x0C00, len = low part of first mail
006b 02bf 0084 call 0084_WaitForDMACompletion()
006d 0080 0c00 lri $AR0, #0x0c00 // AR0 = 0x0C00
} // continues into next function
void 006f_MailHandler() {
@ -90,13 +95,13 @@ void 006f_MailHandler() {
0073 0291 0080 jl 0x0080
0075 0a0e lris $AX0.H, #0x0e
0076 c100 cmpar $ACC0, $AX0.H
0077 0292 0080 jg 0x0080
0077 0292 0080 jg 0x0080 // die if command number is higher than 0xE
0079 009f 0d04 lri $AC1.M, #0x0d04
007b 4c00 add $ACC0, $ACC1
007c 1c7e mrr $AR3, $AC0.M
007d 0213 ilrr $AC0.M, @$AR3
007e 1c7e mrr $AR3, $AC0.M
007f 176f jmpr $AR3
007e 1c7e mrr $AR3, $AC0.M // func at [0x0D04 + cmd_num]
007f 176f jmpr $AR3 // Jump to command func; AR0 = 0x0C01
}
void 0080_Die() {
@ -105,7 +110,7 @@ void 0080_Die() {
0083 0021 halt
}
void 0084_WaitForMail() {
void 0084_WaitForDMACompletion() {
0084 26c9 lrs $AC0.M, @DSCR
0085 02a0 0004 andf $AC0.M, #0x0004
0087 029c 0084 jlnz 0x0084
@ -128,7 +133,7 @@ void 0082_JumpTable_0() {
009d 8100 clr $ACC0
009e 8900 clr $ACC1
009f 8f00 set40
00a0 02bf 0084 call 0084_WaitForMail()
00a0 02bf 0084 call 0084_WaitForDMACompletion()
00a2 193e lrri $AC0.M, @$AR1
00a3 193c lrri $AC0.L, @$AR1
00a4 b179 tst'l $ACC0 : $AC1.M, @$AR1
@ -448,7 +453,7 @@ void 0x222_JumpTable1() {
0232 0081 0d08 lri $AR1, #0x0d08
0234 0084 ffff lri $IX0, #0xffff
0236 1ce4 mrr $IX3, $IX0
0237 02bf 0084 call 0084_WaitForMail()
0237 02bf 0084 call 0084_WaitForDMACompletion()
0239 8f00 set40
023a 80f1 nx'ld : $AX0.H, $AX1.H, @$AR1
023b 80c9 nx'ldm : $AX0.L, $AX1.L, @$AR1
@ -486,7 +491,7 @@ void 0x222_JumpTable1() {
025f 0081 0d08 lri $AR1, #0x0d08
0261 0084 ffff lri $IX0, #0xffff
0263 1ce4 mrr $IX3, $IX0
0264 02bf 0084 call 0084_WaitForMail()
0264 02bf 0084 call 0084_WaitForDMACompletion()
0266 8f00 set40
0267 80f1 nx'ld : $AX0.H, $AX1.H, @$AR1
0268 80c9 nx'ldm : $AX0.L, $AX1.L, @$AR1
@ -511,7 +516,9 @@ void 0x222_JumpTable1() {
027c 029f 006f jmp 006f_MailHandler()
}
void 027e_JumpTable3() {
// Command 0x4 - set PBs address
// stores command data at 0x02D0
void 027e_Cmd4_SetPBsAddress() {
027e 8100 clr $ACC0
027f 8970 clr'l $ACC1 : $AC0.M, @$AR0
0280 8e60 set16'l : $AC0.L, @$AR0
@ -521,7 +528,7 @@ void 027e_JumpTable3() {
0285 16cd 02d0 si @DSPA, #0x02d0
0287 16c9 0000 si @DSCR, #0x0000
0289 16cb 0140 si @DSBL, #0x0140
028b 02bf 0084 call 0084_WaitForMail()
028b 02bf 0084 call 0084_WaitForDMACompletion()
028d 8100 clr $ACC0
028e 8900 clr $ACC1
028f 00de 02d4 lr $AC0.M, @0x02d4
@ -645,7 +652,7 @@ void 027e_JumpTable3() {
032f 16cd 0c40 si @DSPA, #0x0c40
0331 16c9 0000 si @DSCR, #0x0000
0333 16cb 0040 si @DSBL, #0x0040
0335 02bf 0084 call 0084_WaitForMail()
0335 02bf 0084 call 0084_WaitForDMACompletion()
0337 029f 0341 jmp 0x0341
0339 009f 0c60 lri $AC1.M, #0x0c60
033b 00ff 0ce2 sr @0x0ce2, $AC1.M
@ -859,7 +866,7 @@ void 027e_JumpTable3() {
0477 16cd 0ca0 si @DSPA, #0x0ca0
0479 16c9 0001 si @DSCR, #0x0001
047b 16cb 0040 si @DSBL, #0x0040
047d 02bf 0084 call 0084_WaitForMail()
047d 02bf 0084 call 0084_WaitForDMACompletion()
047f 8100 clr $ACC0
0480 8900 clr $ACC1
0481 00de 02d2 lr $AC0.M, @0x02d2
@ -869,7 +876,7 @@ void 027e_JumpTable3() {
0487 16cd 02d0 si @DSPA, #0x02d0
0489 16c9 0001 si @DSCR, #0x0001
048b 16cb 0140 si @DSBL, #0x0140
048d 02bf 0084 call 0084_WaitForMail()
048d 02bf 0084 call 0084_WaitForDMACompletion()
048f 8100 clr $ACC0
0490 00de 02d0 lr $AC0.M, @0x02d0
0492 00dc 02d1 lr $AC0.L, @0x02d1
@ -894,7 +901,7 @@ void 049b_JumpTable4() {
04a9 2ecd srs @DSPA, $AC0.M
04aa 16c9 0001 si @DSCR, #0x0001
04ac 16cb 0480 si @DSBL, #0x0480
04ae 02bf 0084 call 0084_WaitForMail()
04ae 02bf 0084 call 0084_WaitForDMACompletion()
04b0 02bf 04e6 call 0x04e6
04b2 029f 006f jmp 006f_MailHandler()
}
@ -914,11 +921,12 @@ void 04b4_JumpTable5() {
04c2 2ecd srs @DSPA, $AC0.M
04c3 16c9 0001 si @DSCR, #0x0001
04c5 16cb 0480 si @DSBL, #0x0480
04c7 02bf 0084 call 0084_WaitForMail()
04c7 02bf 0084 call 0084_WaitForDMACompletion()
04c9 02bf 04e6 call 0x04e6
04cb 029f 006f jmp 006f_MailHandler()
}
// set out buffer
void 04cd_JumpTable6() {
04cd 8e00 set16
04ce 00c4 0ce8 lr $IX0, @0x0ce8
@ -934,7 +942,7 @@ void 04cd_JumpTable6() {
04db 2ecd srs @DSPA, $AC0.M
04dc 16c9 0001 si @DSCR, #0x0001
04de 16cb 0480 si @DSBL, #0x0480
04e0 02bf 0084 call 0084_WaitForMail()
04e0 02bf 0084 call 0084_WaitForDMACompletion()
04e2 02bf 04e6 call 0x04e6
04e4 029f 006f jmp 006f_MailHandler()
}
@ -967,7 +975,7 @@ void 04e6_JumpTable7() {
0502 2dcd srs @DSPA, $AC1.L
0503 16c9 0000 si @DSCR, #0x0000
0505 16cb 0480 si @DSBL, #0x0480
0507 02bf 0084 call 0084_WaitForMail()
0507 02bf 0084 call 0084_WaitForDMACompletion()
0509 00e0 0cd2 sr @0x0cd2, $AR0
050b 8f00 set40
050c 8d00 set15
@ -1143,7 +1151,7 @@ void 05a2_JumpTable8() {
05d0 16cd 0d08 si @DSPA, #0x0d08
05d2 16c9 0000 si @DSCR, #0x0000
05d4 16cb 00c0 si @DSBL, #0x00c0
05d6 02bf 0084 call 0084_WaitForMail()
05d6 02bf 0084 call 0084_WaitForDMACompletion()
05d8 8a48 m2'l : $AX1.L, @$AR0
05d9 0083 0d08 lri $AR3, #0x0d08
05db 0080 0000 lri $AR0, #0x0000
@ -1214,7 +1222,7 @@ void 060b_JumpTable9() {
062c dc31 mulcac's $AC1.M, $AX1.H, $ACC0 : @$AR1, $AC0.M
062d 4e31 addp's $ACC0 : @$AR1, $AC0.M
062e 1b39 srri @$AR1, $AX1.L
062f 02bf 0084 call 0084_WaitForMail()
062f 02bf 0084 call 0084_WaitForDMACompletion()
0631 8f00 set40
0632 8d00 set15
0633 8a00 m2
@ -1256,7 +1264,7 @@ void 060b_JumpTable9() {
065d 16cd 0400 si @DSPA, #0x0400
065f 16c9 0001 si @DSCR, #0x0001
0661 16cb 0180 si @DSBL, #0x0180
0663 02bf 0084 call 0084_WaitForMail()
0663 02bf 0084 call 0084_WaitForDMACompletion()
0665 16fc dcd1 si @DMBH, #0xdcd1
0667 16fd 0004 si @DMBL, #0x0004
0669 16fb 0001 si @DIRQ, #0x0001
@ -1299,7 +1307,7 @@ void 067c_JumpTable10() {
0699 195c lrri $AC0.L, @$AR2
069a f000 lsl16 $ACC0
069b 1b3e srri @$AR1, $AC0.M
069c 02bf 0084 call 0084_WaitForMail()
069c 02bf 0084 call 0084_WaitForDMACompletion()
069e 191e lrri $AC0.M, @$AR0
069f 191c lrri $AC0.L, @$AR0
06a0 2ece srs @DSMAH, $AC0.M
@ -1307,7 +1315,7 @@ void 067c_JumpTable10() {
06a2 2dcd srs @DSPA, $AC1.L
06a3 16c9 0001 si @DSCR, #0x0001
06a5 16cb 0024 si @DSBL, #0x0024
06a7 02bf 0084 call 0084_WaitForMail()
06a7 02bf 0084 call 0084_WaitForDMACompletion()
06a9 029f 006f jmp 006f_MailHandler()
}
@ -2459,20 +2467,25 @@ void 0c21_Unknown() {
0d01 6e2b movp's $ACC0 : @$AR3, $AC1.L
0d02 1f1e mrr $AX0.L, $AC0.M
0d03 02df ret
0d04 008a 0222 lri $WR2, #0x0222
0d06 024f cw 0x024f ; *** UNKNOWN OPCODE ***
0d07 0e83 lris $AC0.M, #0x83
0d08 027e cw 0x027e ; *** UNKNOWN OPCODE ***
0d09 049b addis $ACC0, #0x9b
0d0a 04b4 addis $ACC0, #0xb4
0d0b 04cd addis $ACC0, #0xcd
0d0c 0dbd lris $AC1.L, #0xbd
0d0d 0ddf lris $AC1.L, #0xdf
0d0e 057b addis $ACC1, #0x7b
0d0f 060b cmpis $ACC0, #0x0b
0d10 0ec6 lris $AC0.M, #0xc6
0d11 067c cmpis $ACC0, #0x7c
0d12 0672 cmpis $ACC0, #0x72
// Command jump table
0d04 008a // 0x0 - ???
0d05 0222 // 0x1 - ???
0d06 024f // 0x2 - ???
0d07 0e83 // 0x3 - ???
0d08 027e // 0x4 - set PBs address
0d09 049b // 0x5 - ???
0d0a 04b4 // 0x6 - ???
0d0b 04cd // 0x7 - set output buffers
0d0c 0dbd // 0x8 - ???
0d0d 0ddf // 0x9 - ???
0d0e 057b // 0xA - set compressor table
0d0f 060b // 0xB - ???
0d10 0ec6 // 0xC - ???
0d11 067c // 0xD - ???
0d12 0672 // 0xE - The End
// coef table?
0d13 081f lris $AX0.L, #0x1f
0d14 0820 lris $AX0.L, #0x20
0d15 082c lris $AX0.L, #0x2c
@ -2655,7 +2668,7 @@ void 0c21_Unknown() {
0dc9 16cd 0400 si @DSPA, #0x0400
0dcb 16c9 0001 si @DSCR, #0x0001
0dcd 16cb 0480 si @DSBL, #0x0480
0dcf 02bf 0084 call 0084_WaitForMail()
0dcf 02bf 0084 call 0084_WaitForDMACompletion()
0dd1 191e lrri $AC0.M, @$AR0
0dd2 191c lrri $AC0.L, @$AR0
0dd3 2ece srs @DSMAH, $AC0.M
@ -2663,7 +2676,7 @@ void 0c21_Unknown() {
0dd5 16cd 0940 si @DSPA, #0x0940
0dd7 16c9 0001 si @DSCR, #0x0001
0dd9 16cb 0180 si @DSBL, #0x0180
0ddb 02bf 0084 call 0084_WaitForMail()
0ddb 02bf 0084 call 0084_WaitForDMACompletion()
0ddd 029f 0e01 jmp 0x0e01
0ddf 8e00 set16
0de0 00c4 0ce7 lr $IX0, @0x0ce7
@ -2677,7 +2690,7 @@ void 0c21_Unknown() {
0deb 16cd 0640 si @DSPA, #0x0640
0ded 16c9 0001 si @DSCR, #0x0001
0def 16cb 0480 si @DSBL, #0x0480
0df1 02bf 0084 call 0084_WaitForMail()
0df1 02bf 0084 call 0084_WaitForDMACompletion()
0df3 191e lrri $AC0.M, @$AR0
0df4 191c lrri $AC0.L, @$AR0
0df5 2ece srs @DSMAH, $AC0.M
@ -2685,7 +2698,7 @@ void 0c21_Unknown() {
0df7 16cd 0a00 si @DSPA, #0x0a00
0df9 16c9 0001 si @DSCR, #0x0001
0dfb 16cb 0180 si @DSBL, #0x0180
0dfd 02bf 0084 call 0084_WaitForMail()
0dfd 02bf 0084 call 0084_WaitForDMACompletion()
0dff 029f 0e01 jmp 0x0e01
0e01 8b00 m0
0e02 8100 clr $ACC0
@ -2714,7 +2727,7 @@ void 0c21_Unknown() {
0e1f 16cb 0180 si @DSBL, #0x0180
0e21 0081 0000 lri $AR1, #0x0000
0e23 1c41 mrr $AR2, $AR1
0e24 02bf 0084 call 0084_WaitForMail()
0e24 02bf 0084 call 0084_WaitForDMACompletion()
0e26 02bf 0e57 call 0x0e57
0e28 191e lrri $AC0.M, @$AR0
0e29 191c lrri $AC0.L, @$AR0
@ -2723,7 +2736,7 @@ void 0c21_Unknown() {
0e2c 00e6 ffcd sr @DSPA, $IX2
0e2e 16c9 0000 si @DSCR, #0x0000
0e30 16cb 0180 si @DSBL, #0x0180
0e32 02bf 0084 call 0084_WaitForMail()
0e32 02bf 0084 call 0084_WaitForDMACompletion()
0e34 02bf 0e57 call 0x0e57
0e36 191e lrri $AC0.M, @$AR0
0e37 191c lrri $AC0.L, @$AR0
@ -2732,7 +2745,7 @@ void 0c21_Unknown() {
0e3a 00e6 ffcd sr @DSPA, $IX2
0e3c 16c9 0000 si @DSCR, #0x0000
0e3e 16cb 0180 si @DSBL, #0x0180
0e40 02bf 0084 call 0084_WaitForMail()
0e40 02bf 0084 call 0084_WaitForDMACompletion()
0e42 02bf 0e57 call 0x0e57
0e44 191e lrri $AC0.M, @$AR0
0e45 191c lrri $AC0.L, @$AR0
@ -2743,7 +2756,7 @@ void 0c21_Unknown() {
0e4c 16cb 0180 si @DSBL, #0x0180
0e4e 0081 0880 lri $AR1, #0x0880
0e50 1c41 mrr $AR2, $AR1
0e51 02bf 0084 call 0084_WaitForMail()
0e51 02bf 0084 call 0084_WaitForDMACompletion()
0e53 02bf 0e57 call 0x0e57
0e55 029f 006f jmp 006f_MailHandler()
@ -2796,7 +2809,7 @@ void 0c21_Unknown() {
0e88 16cd 0d08 si @DSPA, #0x0d08
0e8a 16c9 0000 si @DSCR, #0x0000
0e8c 16cb 0300 si @DSBL, #0x0300
0e8e 02bf 0084 call 0084_WaitForMail()
0e8e 02bf 0084 call 0084_WaitForDMACompletion()
0e90 1c80 mrr $IX0, $AR0
0e91 8f00 set40
0e92 0080 0d08 lri $AR0, #0x0d08
@ -2856,7 +2869,7 @@ void 0c21_Unknown() {
0ecd 16cd 0180 si @DSPA, #0x0180
0ecf 16c9 0001 si @DSCR, #0x0001
0ed1 16cb 0180 si @DSBL, #0x0180
0ed3 02bf 0084 call 0084_WaitForMail()
0ed3 02bf 0084 call 0084_WaitForDMACompletion()
0ed5 8100 clr $ACC0
0ed6 009c 0180 lri $AC0.L, #0x0180
0ed8 4d00 add $ACC1, $ACC0
@ -2883,7 +2896,7 @@ void 0c21_Unknown() {
0ef6 dc31 mulcac's $AC1.M, $AX1.H, $ACC0 : @$AR1, $AC0.M
0ef7 4e31 addp's $ACC0 : @$AR1, $AC0.M
0ef8 1b39 srri @$AR1, $AX1.L
0ef9 02bf 0084 call 0084_WaitForMail()
0ef9 02bf 0084 call 0084_WaitForDMACompletion()
0efb 8f00 set40
0efc 8d00 set15
0efd 8a00 m2
@ -2925,7 +2938,7 @@ void 0c21_Unknown() {
0f27 16cd 0400 si @DSPA, #0x0400
0f29 16c9 0001 si @DSCR, #0x0001
0f2b 16cb 0180 si @DSBL, #0x0180
0f2d 02bf 0084 call 0084_WaitForMail()
0f2d 02bf 0084 call 0084_WaitForDMACompletion()
0f2f 16fc dcd1 si @DMBH, #0xdcd1
0f31 16fd 0004 si @DMBL, #0x0004
0f33 16fb 0001 si @DIRQ, #0x0001