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Merge SrcSelect.c, AX.c, Crazy Taxi.txt, and DSP_UC_AX1.txt into new and improved disasm -> DSP/DSP_UC_6A696CE7.txt
Goal is complete/near complete RE of DSP_UC_6A696CE7 (GC AX), and hopefully ROM. From there, seeing the additional changes in other GC AX versions (there are only 4 others, with minor differences), should be "simple". git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4818 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
Shawn Hoffman
213
docs/DSP/AX.c
213
docs/DSP/AX.c
@ -1,213 +0,0 @@
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//
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// Pseudo C
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//
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//
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// DSP:
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//
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// Memory USAGE
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0x0B80 to 0x0C40 CurrentPB
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0x0B87
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0x0E15 SrcSelectFunction // perhaps CMD0 setups some kind of jmp table at this addresses
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0x0E16 CoefFunction
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0x0E14 MixCtrlFunction
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0x0e17 TmpBuffer exceptions
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0x0e18 TmpBuffer exceptions
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0x0e19 TmpBuffer exceptions
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// instrcution memory
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0x0B31 to 0x0B33 some kind of JMP-Table to handle srcSelect ???
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0x0B34 to 0x0B36 some kind of JMP-Table to handle coefSelect ???
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0x0B11 to 0x0B1F some kind of JMP-Table to handle mixerCtrl ???
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void CMD2()
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{
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// 0x1BC
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int_addrPB = (*r00 << 16) | *(r00+1)
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DMA_From_Memory(0x0B80, _addrPB, 0xC0); // read first PB to 0x0B80
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// 0x1C7
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*0x0E08 = 0x0000
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*0x0E09 = 0x0140
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*0x0E0A = 0x0280
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*0x0E0B = 0x0400
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*0x0E0C = 0x0540
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*0x0E0D = 0x0680
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*0x0E0E = 0x07C0
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*0x0E0F = 0x0900
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*0x0E10 = 0x0A40
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// 0x1E4
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WaitForDMATransfer()
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// 0x1E6
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Addr = (*0x0BA7 << 16) | *0x0BA8
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DMA_From_Memory(0x03C0, Addr, 0x80); // Copy Update Data to 0x03C0 (AXPBUPDATE dataHi, dataLo)
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// 0x1F4
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R03 = (*0x0B84) + 0x0B31 // AXPB->srcSelect + 0x0B31 ??? some kind of flag handling ??? SRCSEL can be 0x0 to 0x2
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AC0.M = *R03
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*0x0E15 = *AC0.M
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// 0x1FD
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R03 = (*0x0B85) + 0x0B34 // AXPB->coefSelect + 0x0B34 ??? some kind of flag handling ??? COEF can be 0x0 to 0x2
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AC0.M = *R03
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*0x0E16 = *AC0.M
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// 0x206
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R03 = (*0x0B86) + 0x0B11 // AXPB->mixerCtrl + 0x0B36 ??? some kind of flag handling ??? MIXCTRL can be 0x0 to 0xE
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AC0.M = *R03
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*0x0E14 = *AC0.M
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// 0x20F
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if (*0x0B9B == 0) // AXPBITD->flag (on or off for this voice)
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{
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// jmp to 0x23a
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*0x0E42 = 0x0CE0
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*0x0E40 = 0x0CE0
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*0x0E41 = 0x0CE0
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*0x0E43 = 0x0CE0
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WaitForDMATransfer()
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}
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else
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{
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// code at 0x216
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*0x0E40 = *0x0B9E + 0x0CC0 // AXPBITD->shiftL
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*0x0E41 = *0x0B9F + 0x0CC0 // AXPBITD->shiftR
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*0x0E42 = 0xCE0
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*0x0E43 = 0xCE0
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WaitForDMATransfer()
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// 0x22a
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Addr = (*0x0B9C << 16) | *0x0B9D
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DMA_From_Memory(0x0CC0, Addr, 0x40); // (AXPBITD->bufferHi << 16 | AXPBITD->bufferLo) -> 0xCC0
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WaitForDMATransfer()
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}
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}
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void CMD0()
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{
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}
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void CMD3()
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{
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0x0E07 = R00
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R00 = 0x0BA2 // AXPBUPDATE->updNum
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R01 = 0x03C0
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*0x0E04 = 0x05
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AC1 = 0
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AC0 = 0
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AX0.H = *R00++ // AXPBUPDATE->updNum[0]
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AC1.M = 0x0B80
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// 0x256
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for (i=0; i<AX0.H; i++)
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{
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AC0.M = *R01++
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AC0.M = AC0.M + AC1.M
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AX1.L = *R01++
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R02 = AC0.M
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*R02 = AX1.L
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}
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// 0x25c
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R03 = 0x0E05
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*R03++ = R01
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*R03++ = R02
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// 0x260
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AC0.M = *0x0B87 // AXPB->state
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if (AC0.M == 1)
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{
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// JMP 0x267 (AX_PB_STATE_RUN)
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*0x0E1C = *0x0E42
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CALLR *0x0E15 // Load Sample (SrcSelectFunction)
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// 0x270
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AC0.M = *0xBB3 // AXPBVE->currentDelta (.15 volume at start of frame)
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AC1.M = *0xBB2 // AXPBVE->currentVolume
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// 0x278
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AX0.L = AC1.M
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AC1.M = AC1.M + AC0.M
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AC0.M = AC0.M << 1
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SET15 // ????
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AX1.H = AC0.M
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AC0.M = AX0.L
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AX0.L = 0x8000
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R00 = 0x0E44
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// 0x27f
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// scale volume table
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.
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.
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.
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/* for (int i=0; i<32; i++)
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{
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*R00++ = AC0.M;
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prod = AX0.L * AX1.H
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*R00++ = AC1.M;
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AC0 = AC0 + prod
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prod = AX0.L * AX1.H
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*R00++ = AC0.M;
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AC1 = AC1 + prod
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prod = AX0.L * AX1.H
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}*/
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// 0x29f
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*0xBB2 = CurrentVolume
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// 0x2a1
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// mutiply volume with sample
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.
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.
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.
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// 0x2ea
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// Call mixer
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// 0x02f0
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}
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else
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{
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// JMP 0x332
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.
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.
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.
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.
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}
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}
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// ===============================================================
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void Func_0x065D()
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{
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}
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File diff suppressed because it is too large
Load Diff
3343
docs/DSP/DSP_UC_6A696CE7.txt
Normal file
3343
docs/DSP/DSP_UC_6A696CE7.txt
Normal file
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
@ -1,226 +0,0 @@
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// Init Hardware PCM decoder
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/*
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06a3 0082 0bb8 LRI $R02, #0x0bb8
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06a5 195e LRRI $AC0.M, @$R02
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06a6 2ed1 SRS @SampleFormat, $AC0.M
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06a7 195e LRRI $AC0.M, @$R02
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06a8 2ed4 SRS @ACSAH, $AC0.M
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06a9 195e LRRI $AC0.M, @$R02
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06aa 2ed5 SRS @ACSAL, $AC0.M
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06ab 195e LRRI $AC0.M, @$R02
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06ac 2ed6 SRS @ACEAH, $AC0.M
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06ad 195e LRRI $AC0.M, @$R02
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06ae 2ed7 SRS @ACEAL, $AC0.M
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06af 195e LRRI $AC0.M, @$R02
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06b0 2ed8 SRS @ACCAH, $AC0.M
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06b1 195e LRRI $AC0.M, @$R02
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06b2 2ed9 SRS @ACCAL, $AC0.M
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06b3 195e LRRI $AC0.M, @$R02
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06b4 2ea0 SRS @COEF_A1_0, $AC0.M
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06b5 195e LRRI $AC0.M, @$R02
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06b6 2ea1 SRS @COEF_A2_0, $AC0.M
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06b7 195e LRRI $AC0.M, @$R02
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06b8 2ea2 SRS @COEF_A1_1, $AC0.M
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06b9 195e LRRI $AC0.M, @$R02
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06ba 2ea3 SRS @COEF_A2_1, $AC0.M
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06bb 195e LRRI $AC0.M, @$R02
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06bc 2ea4 SRS @COEF_A1_2, $AC0.M
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06bd 195e LRRI $AC0.M, @$R02
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06be 2ea5 SRS @COEF_A2_2, $AC0.M
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06bf 195e LRRI $AC0.M, @$R02
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06c0 2ea6 SRS @COEF_A1_3, $AC0.M
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06c1 195e LRRI $AC0.M, @$R02
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06c2 2ea7 SRS @COEF_A2_3, $AC0.M
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06c3 195e LRRI $AC0.M, @$R02
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06c4 2ea8 SRS @COEF_A1_4, $AC0.M
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06c5 195e LRRI $AC0.M, @$R02
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06c6 2ea9 SRS @COEF_A2_4, $AC0.M
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06c7 195e LRRI $AC0.M, @$R02
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06c8 2eaa SRS @COEF_A1_5, $AC0.M
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06c9 195e LRRI $AC0.M, @$R02
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06ca 2eab SRS @COEF_A2_5, $AC0.M
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06cb 195e LRRI $AC0.M, @$R02
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06cc 2eac SRS @COEF_A1_6, $AC0.M
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06cd 195e LRRI $AC0.M, @$R02
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06ce 2ead SRS @COEF_A2_6, $AC0.M
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06cf 195e LRRI $AC0.M, @$R02
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06d0 2eae SRS @COEF_A1_7, $AC0.M
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06d1 195e LRRI $AC0.M, @$R02
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06d2 2eaf SRS @COEF_A2_7, $AC0.M
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06d3 195e LRRI $AC0.M, @$R02
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06d4 2ede SRS @GAIN, $AC0.M
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06d5 195e LRRI $AC0.M, @$R02
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06d6 2eda SRS @pred_scale, $AC0.M
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06d7 195e LRRI $AC0.M, @$R02
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06d8 2edb SRS @yn1, $AC0.M
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06d9 195e LRRI $AC0.M, @$R02
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06da 2edc SRS @yn2, $AC0.M
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*/
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/// hmmmmmm
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/*
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06db 8c00 CLR15
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06dc 8a00 M2
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06dd 8e00 S40
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*/
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///
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AX0.L = *0xe16
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AX1.H = ratioHi // sample ratio from AXPBSRC
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AX1.L = ratioLo // sample ratio from AXPBSRC
|
||||
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||||
AC0 = 0
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AC0.L = currentAddressFrac // AXPBSRC
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*0x0e48 = last_samples[0]
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*0x0e49 = last_samples[1]
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*0x0e4A = last_samples[2]
|
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*0x0e4B = last_samples[3]
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||||
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AC1.M = AX1.L
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ACC = ACC >> 0x05
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AC1 = AC1 + AC0
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||||
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R04 = AC1.M
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R05 = AC1.L
|
||||
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AC1 = AC1 + 0xe0 // ?????? AC1 = AC1 - 2097152 (because 0xe0 is converted to signed and shift << 16)
|
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AC1 = AC1 >> 16
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AC1 = -AC1
|
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|
||||
R06 = -AC1
|
||||
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//////////////
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AC1 = 0
|
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AC1.L = R05
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AC1 = AC1 << 2
|
||||
R05 = AC1.M
|
||||
|
||||
|
||||
// 0x06fc
|
||||
|
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AX.0 = 0x1fc
|
||||
AC0 = 0xe48
|
||||
R01 = 0xFFDD
|
||||
R03 = 0x0D80
|
||||
|
||||
// 0x0704
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||||
for (i=0; i<R04; i++)
|
||||
{
|
||||
AC0 = AC0 + AX1
|
||||
*R03++ = AC0.M
|
||||
|
||||
AC1.M = AC0.L
|
||||
LSR $AC1.M, #0x79
|
||||
AC1 = AC1 & AX0.H
|
||||
AC1 += AX0.L
|
||||
*R03++ = AC1
|
||||
|
||||
*R00++ = *ADPCM_DECODER
|
||||
*R00++ = *ADPCM_DECODER
|
||||
*R00++ = *ADPCM_DECODER
|
||||
*R00++ = *ADPCM_DECODER
|
||||
}
|
||||
|
||||
/*
|
||||
0704 0064 0715 BLOOP $R04, 0x0715
|
||||
0706 1827 LRR $R07, @$R01
|
||||
0707 1b07 SRRI @$R00, $R07
|
||||
0708 4a00 ADDAX $AC0.M, $AX1.L
|
||||
0709 1ffc MRR $AC1.M, $AC0.L
|
||||
070a 1827 LRR $R07, @$R01
|
||||
070b 1b07 SRRI @$R00, $R07
|
||||
070c 1579 LSR $AC1.M, #0x79
|
||||
070d 3500 ANDR $AC1.M, $R00
|
||||
070e 1827 LRR $R07, @$R01
|
||||
070f 1b07 SRRI @$R00, $R07
|
||||
0710 4100 ADDR $AC1.M, $AX0.L
|
||||
0711 1b7e SRRI @$R03, $AC0.M
|
||||
0712 1827 LRR $R07, @$R01
|
||||
0713 1b07 SRRI @$R00, $R07
|
||||
0714 1b7f SRRI @$R03, $AC1.M
|
||||
0715 0000 NOP */
|
||||
|
||||
// 0x0715
|
||||
// prolly copies the "rest"
|
||||
|
||||
for (i=0; i<r05; i++)
|
||||
{
|
||||
R07 = *ADPCM_DECODER
|
||||
*R00++ = R07
|
||||
}
|
||||
|
||||
// 0x71c
|
||||
R03--
|
||||
AC1 = *R03
|
||||
|
||||
/* 071c 0007 DAR $R03
|
||||
071d 187f LRR $AC1.M, @$R03 */
|
||||
|
||||
for (i<0; i<r06; i++)
|
||||
{
|
||||
AC0 = AX1
|
||||
*R03++ = AC1.M
|
||||
|
||||
}
|
||||
|
||||
/*
|
||||
071e 0066 0724 BLOOP $R06, 0x0724
|
||||
0720 4a3b ADDAX<41>S $AC0.M, $AX1.L : @$R03, $AC1.M
|
||||
0721 1ffc MRR $AC1.M, $AC0.L
|
||||
0722 1579 LSR $AC1.M, #0x79
|
||||
0723 3533 ANDR<44>S $AC1.M, $R00 : @$R03, $AC0.M
|
||||
0724 4100 ADDR $AC1.M, $AX0.L
|
||||
*/
|
||||
|
||||
0725 1b7f SRRI @$R03, $AC1.M
|
||||
0726 0004 DAR $R00
|
||||
0727 189f LRRD $AC1.M, @$R00
|
||||
0728 1adf SRRD @$R02, $AC1.M
|
||||
0729 189f LRRD $AC1.M, @$R00
|
||||
072a 1adf SRRD @$R02, $AC1.M
|
||||
072b 189f LRRD $AC1.M, @$R00
|
||||
072c 1adf SRRD @$R02, $AC1.M
|
||||
072d 189f LRRD $AC1.M, @$R00
|
||||
072e 1adf SRRD @$R02, $AC1.M
|
||||
072f 1adc SRRD @$R02, $AC0.L
|
||||
0730 0082 0bd2 LRI $R02, #0x0bd2
|
||||
0732 27dc LRS $AC1.M, @yn2
|
||||
0733 1adf SRRD @$R02, $AC1.M
|
||||
0734 27db LRS $AC1.M, @yn1
|
||||
0735 1adf SRRD @$R02, $AC1.M
|
||||
0736 27da LRS $AC1.M, @pred_scale
|
||||
0737 1adf SRRD @$R02, $AC1.M
|
||||
0738 0082 0bbe LRI $R02, #0x0bbe
|
||||
073a 27d9 LRS $AC1.M, @ACCAL
|
||||
073b 1adf SRRD @$R02, $AC1.M
|
||||
073c 27d8 LRS $AC1.M, @ACCAH
|
||||
073d 1adf SRRD @$R02, $AC1.M
|
||||
|
||||
|
||||
073e 8f00 S16
|
||||
073f 00c1 0e42 LR $R01, @0x0e42
|
||||
0741 0082 0d80 LRI $R02, #0x0d80
|
||||
0743 1940 LRRI $R00, @$R02
|
||||
0744 1943 LRRI $R03, @$R02
|
||||
0745 80f0 NX<EFBFBD>LDX : $AX1.L, $AX1.H, @$R01
|
||||
0746 b8c0 MULX<EFBFBD>LDX $AX0.H, $AX1.H : $AX0.L, $AX0.H, @$R00
|
||||
0747 111f 074f BLOOPI #0x1f, 0x074f
|
||||
0749 a6f0 MULXMV<EFBFBD>LDX $AX0.L, $AX1.L, $AC0.M : $AX1.L, $AX1.H, @$R01
|
||||
074a bcf0 MULXAC<EFBFBD>LDX $AX0.H, $AX1.H, $AC0.M : $AX1.L, $AX1.H, @$R01
|
||||
074b 1940 LRRI $R00, @$R02
|
||||
074c 1943 LRRI $R03, @$R02
|
||||
074d bcf0 MULXAC<EFBFBD>LDX $AX0.H, $AX1.H, $AC0.M : $AX1.L, $AX1.H, @$R01
|
||||
074e 4ec0 ADDP<EFBFBD>LDX $AC0.M : $AX0.L, $AX0.H, @$R00
|
||||
074f b831 MULX<EFBFBD>S $AX0.H, $AX1.H : @$R01, $AC0.M
|
||||
0750 a6f0 MULXMV<EFBFBD>LDX $AX0.L, $AX1.L, $AC0.M : $AX1.L, $AX1.H, @$R01
|
||||
0751 bcf0 MULXAC<EFBFBD>LDX $AX0.H, $AX1.H, $AC0.M : $AX1.L, $AX1.H, @$R01
|
||||
0752 bc00 MULXAC $AX0.H, $AX1.H, $AC0.M
|
||||
0753 4e00 ADDP $AC0.M
|
||||
0754 1b3e SRRI @$R01, $AC0.M
|
||||
0755 00e1 0e42 SR @0x0e42, $R01
|
||||
0757 02df RET
|
||||
|
||||
Reference in New Issue
Block a user