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ucode voice cases jump table documentation, decrypted case 0x6

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@3615 8ced0084-cf51-0410-be5f-012b33b47a6e
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XTra.KrazzY 2009-06-30 00:20:55 +00:00
parent 2e7dd06cfd
commit 1b6608ad29
1 changed files with 24 additions and 18 deletions
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docs/DSP/DSP_UC_Zelda.txt
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@ -2883,7 +2883,7 @@ void 087c_DefaultDecoder()
0887 0340 007e andi $AC1.M, #0x007e // AC1.M &= 0x007e 0887 0340 007e andi $AC1.M, #0x007e // AC1.M &= 0x007e
0889 0300 0891 addi $AC1.M, #0x0891 // AC1.M += 0x0891 0889 0300 0891 addi $AC1.M, #0x0891 // AC1.M += 0x0891
088b 1c5f mrr $AR2, $AC1.M // AR2 = AC1.M 088b 1c5f mrr $AR2, $AC1.M // AR2 = AC1.M
088c 175f callr $AR2 // (*$AR2)() <-- Need to check where it actually goes 088c 175f callr $AR2 // (*$AR2)() <-- See jump table at 0x0891
088d 00fc 0430 sr @0x0430, $AC0.L // PB.RatioFrac = AC0.L 088d 00fc 0430 sr @0x0430, $AC0.L // PB.RatioFrac = AC0.L
// 088f 029f 02d8 jmp 0x02d8 // 088f 029f 02d8 jmp 0x02d8
@ -2892,22 +2892,23 @@ void 087c_DefaultDecoder()
// Jump table // Jump table
0891 029f 08b2 jmp 0x08b2 // switch(PB.Format)
0893 029f 08ed jmp 0x08ed 0891 029f 08b2 jmp 0x08b2 // case 0x0
0895 029f 08d5 jmp 0x08d5 0893 029f 08ed jmp 0x08ed // case 0x1
0897 029f 08c2 jmp 0x08c2 0895 029f 08d5 jmp 0x08d5 // case 0x2
0899 029f 08fb jmp 0x08fb 0897 029f 08c2 jmp 0x08c2 // case 0x3
089b 029f 08b1 jmp 0x08b1 0899 029f 08fb jmp 0x08fb // case 0x4
089d 029f 0919 jmp 0x0919 089b 029f 08b1 jmp 0x08b1 // case 0x5 (can never happen)
089f 029f 091c jmp 0x091c 089d 029f 0919 jmp 0x0919 // case 0x6
08a1 029f 08b1 jmp 0x08b1 089f 029f 091c jmp 0x091c // case 0x7
08a3 029f 08b1 jmp 0x08b1 08a1 029f 08b1 jmp 0x08b1 // case 0x8 (can never happen)
08a5 029f 093a jmp 0x093a 08a3 029f 08b1 jmp 0x08b1 // case 0x9 (can never happen)
08a7 029f 08f3 jmp 0x08f3 08a5 029f 093a jmp 0x093a // case 0xa
08a9 029f 08f7 jmp 0x08f7 08a7 029f 08f3 jmp 0x08f3 // case 0xb
08ab 029f 08b1 jmp 0x08b1 08a9 029f 08f7 jmp 0x08f7 // case 0xc
08ad 029f 08b1 jmp 0x08b1 08ab 029f 08b1 jmp 0x08b1 // case 0xd (unused)
08af 029f 08b1 jmp 0x08b1 08ad 029f 08b1 jmp 0x08b1 // case 0xe (unused)
08af 029f 08b1 jmp 0x08b1 // case 0xf (unused)
08b1 02df ret 08b1 02df ret
void 08b2_Unk() { void 08b2_Unk() {
@ -2923,6 +2924,9 @@ void 08b2_Unk() {
08bf 4800 addax $ACC0, $AX0.L 08bf 4800 addax $ACC0, $AX0.L
08c0 147f lsr $ACC0, #-1 08c0 147f lsr $ACC0, #-1
08c1 02df ret 08c1 02df ret
}
void 08c2_Unk() {
08c2 1402 lsl $ACC0, #2 08c2 1402 lsl $ACC0, #2
08c3 8900 clr $ACC1 08c3 8900 clr $ACC1
08c4 1fb8 mrr $AC1.L, $AX0.L 08c4 1fb8 mrr $AC1.L, $AX0.L
@ -3000,6 +3004,8 @@ void 08f3_Unk() {
} }
void 0919_Unk() { void 0919_Unk() {
// case 0x6: Fills the buffer with PB.RatioInt (zero?)
0919 1050 loopi #0x50 0919 1050 loopi #0x50
091a 1b18 srri @$AR0, $AX0.L 091a 1b18 srri @$AR0, $AX0.L
091b 02df ret 091b 02df ret