The-Homebrew-Cloud/dolphin
2
0
Fork 0
mirror of https://github.com/dolphin-emu/dolphin.git synced 2025-03-12 14:46:49 +01:00
Code Issues Packages Projects Releases Wiki Activity

added some more info to ct

Browse Source 
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@805 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
fires.gc 2008-10-08 23:21:54 +00:00
parent 627891520c
commit 3d20ad60d9
1 changed files with 28 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

50
Docs/DSP/Crazy Taxi.txt
View File

@ -9,7 +9,7 @@
0x0000 0x0000
0x0140 0x0140
0x0280 0x0280 // outbuffer left and right... each channel is 0x140 samples long
0x0400 0x0400
0x0540 0x0540
0x0680 0x0680
@ -23,7 +23,7 @@
// addresses to buffers // addresses to buffers
0x0E08 0x0E08
0x0E09 0x0E09
0x0E0A 0x0E0A // point to output buffer
0x0E0B 0x0E0B
0x0E0C 0x0E0C
0x0E0D 0x0E0D
@ -358,7 +358,7 @@ Main()
0161 02bf 0484 CALL 0x0484 0161 02bf 0484 CALL 0x0484
0163 029f 0068 JMP 0x0068 // Return to message loop. 0163 029f 0068 JMP 0x0068 // Return to message loop.
// DMA something back to RAM
// Opcode_06() // Opcode_06()
0165 8100 CLR $30 0165 8100 CLR $30
0166 8e00 S40 0166 8e00 S40
@ -544,7 +544,7 @@ Main()
0267 00de 0e42 LR $30, @0x0e42 // we got here - yes, it's running 0267 00de 0e42 LR $30, @0x0e42 // we got here - yes, it's running
0269 00fe 0e1c SR @0x0e1c, $30 0269 00fe 0e1c SR @0x0e1c, $30
026b 00c3 0e15 LR $3, @0x0e15 026b 00c3 0e15 LR $3, @0x0e15
026d 177f CALLR $3 026d 177f CALLR $3 // Call the Src Decoder
026e 8e00 S40 026e 8e00 S40
026f 8a00 M2 026f 8a00 M2
0270 8100 CLR $30 0270 8100 CLR $30
@ -662,7 +662,7 @@ Main()
02e7 9e00 MULMV $25, $27, $30 02e7 9e00 MULMV $25, $27, $30
02e8 6f33 MOVPhS $31 : @$3, $30 02e8 6f33 MOVPhS $31 : @$3, $30
02e9 1b7f SRRI @$3, $31 02e9 1b7f SRRI @$3, $31
02ea 00c3 0e14 LR $3, @0x0e14 02ea 00c3 0e14 LR $3, @0x0e14 // call the mixer
02ec 8f00 S16 02ec 8f00 S16
02ed 8d00 SET15 02ed 8d00 SET15
02ee 8a00 M2 02ee 8a00 M2
@ -712,7 +712,6 @@ Main()
032e 00fe 0e41 SR @0x0e41, $30 032e 00fe 0e41 SR @0x0e41, $30
0330 00fe 0e43 SR @0x0e43, $30 0330 00fe 0e43 SR @0x0e43, $30
0332 8100 CLR $30 // Jumps here when a PB isn't ->running. 0332 8100 CLR $30 // Jumps here when a PB isn't ->running.
0333 8e00 S40 0333 8e00 S40
0334 8400 CLRP 0334 8400 CLRP
0335 8900 CLR $31 0335 8900 CLR $31
@ -829,7 +828,7 @@ Main()
03ca 0213 ILRR $30, @$3 03ca 0213 ILRR $30, @$3
03cb 00fe 0e16 SR @0x0e16, $30 03cb 00fe 0e16 SR @0x0e16, $30
03cd 00de 0b86 LR $30, @0x0b86 03cd 00de 0b86 LR $30, @0x0b86
03cf 009f 0b11 LRI $31, #0x0b11 03cf 009f 0b11 LRI $31, #0x0b11 // mixer control jmp table base addr
03d1 4c00 ADD $30, $31 03d1 4c00 ADD $30, $31
03d2 1c7e MRR $3, $30 03d2 1c7e MRR $3, $30
03d3 0213 ILRR $30, @$3 03d3 0213 ILRR $30, @$3
@ -885,7 +884,7 @@ Main()
0423 02bf 0484 CALL 0x0484 0423 02bf 0484 CALL 0x0484
0425 029f 0068 JMP 0x0068 // Return to message loop. 0425 029f 0068 JMP 0x0068 // Return to message loop.
// DMA soemthing back to RAM
// Opcode_05() - do another DMA transfer // Opcode_05() - do another DMA transfer
0427 8e00 S40 0427 8e00 S40
0428 0086 07c0 LRI $6, #0x07c0 0428 0086 07c0 LRI $6, #0x07c0
@ -902,8 +901,11 @@ Main()
0437 02bf 0484 CALL 0x0484 0437 02bf 0484 CALL 0x0484
0439 029f 0068 JMP 0x0068 // Return to message loop. 0439 029f 0068 JMP 0x0068 // Return to message loop.
/////////////////////////////////////
// DMA the sound buffer back to RAM
// Opcode_14() // Opcode_14()
// called by CT
//
043b 8c00 CLR15 043b 8c00 CLR15
043c 8a00 M2 043c 8a00 M2
043d 8100 CLR $30 043d 8100 CLR $30
@ -1273,7 +1275,7 @@ Main()
05e0 8c00 CLR15 05e0 8c00 CLR15
05e1 8a00 M2 05e1 8a00 M2
05e2 8e00 S40 05e2 8e00 S40
05e3 00d8 0e16 LR $24, @0x0e16 05e3 00d8 0e16 LR $24, @0x0e16 // get COEF Table
05e5 195b LRRI $27, @$2 05e5 195b LRRI $27, @$2
05e6 1959 LRRI $25, @$2 05e6 1959 LRRI $25, @$2
05e7 8100 CLR $30 05e7 8100 CLR $30
@ -1633,14 +1635,17 @@ Main()
//////////////////////////////////////////////// ////////////////////////////////////////////////
// fn0 // fn0
0768 00c0 0e40 LR $0, @0x0e40 // this mixer is used by CrazyTaxi (at least at the beginning)
076a 0081 0b89 LRI $1, #0x0b89 // PB mixer settings // perhaps f<>r mono sample??
076c 00c2 0e08 LR $2, @0x0e08
076e 1c62 MRR $3, $2 0768 00c0 0e40 LR $0, @0x0e40 // outbuffer ??
076f 00c4 0e41 LR $4, @0x0e41 076a 0081 0b89 LRI $1, #0x0b89 // PB->Mixer... struct offset
0771 00c5 0e09 LR $5, @0x0e09 076c 00c2 0e08 LR $2, @0x0e08 // left-buffer?
076e 1c62 MRR $3, $2 // right-buffer?
076f 00c4 0e41 LR $4, @0x0e41 // delay offset ??
0771 00c5 0e09 LR $5, @0x0e09 // 0x140 all the time .... could be number of samples
0773 02bf 80e7 CALL 0x80e7 // Call ROM mixer function 0773 02bf 80e7 CALL 0x80e7 // Call ROM mixer function
0775 00f8 0ba9 SR @0x0ba9, $24 0775 00f8 0ba9 SR @0x0ba9, $24 // mixer unknown stuff
0777 00fb 0bac SR @0x0bac, $27 0777 00fb 0bac SR @0x0bac, $27
0779 02df RET 0779 02df RET
@ -2560,11 +2565,12 @@ Main()
////////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////////
// Jmp table for function below (what ever it does :)) // Jmp table for function below
0c8d 0c9f LRIS $28, #0x9f // i think case 0x03 is the standard case
0c8e 0ca2 LRIS $28, #0xa2 0c8d 0c9f LRIS $28, #0x9f // some kind of soft-reset for the UCode
0c8f 0cda LRIS $28, #0xda 0c8e 0ca2 LRIS $28, #0xa2 // looks like code to dump the UCode memory for debugging
0c90 0cdd LRIS $28, #0xdd 0c8f 0cda LRIS $28, #0xda // rest the UCode and jump to ROM
0c90 0cdd LRIS $28, #0xdd // normal case to return to the main-loop
// Mix and write back to RAM??? It is called by AXLIST_END command only // Mix and write back to RAM??? It is called by AXLIST_END command only