an attempt to move docs to trunk. god tortoisesvn was an ass to do this with tortoisesvn and google code (core pdf was refused multiple times) NOTE: docs/WiiMote/Core V2.1 + EDR.pdf is still missing deu to googlecode hating me

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@3491 8ced0084-cf51-0410-be5f-012b33b47a6e
2025-06-28 09:59:32 -06:00 · 2009-06-18 16:07:45 +00:00
parent 5d590d5934
commit b92be31df0
36 changed files with 14366 additions and 1 deletions
--- a/docs/DSP/AX.c
+++ b/docs/DSP/AX.c
@ -0,0 +1,213 @@
+//
+// Pseudo C
+//
+
+//
+// DSP:
+//
+
+// Memory USAGE
+
+
+
+0x0B80 to 0x0C40			CurrentPB
+
+0x0B87
+
+0x0E15						SrcSelectFunction      // perhaps CMD0 setups some kind of jmp table at this addresses
+0x0E16						CoefFunction
+0x0E14						MixCtrlFunction
+
+0x0e17						TmpBuffer exceptions
+0x0e18						TmpBuffer exceptions
+0x0e19						TmpBuffer exceptions
+
+// instrcution memory
+0x0B31 to 0x0B33			some kind of JMP-Table to handle srcSelect ???
+0x0B34 to 0x0B36			some kind of JMP-Table to handle coefSelect ???
+0x0B11 to 0x0B1F			some kind of JMP-Table to handle mixerCtrl ???
+
+void CMD2()
+{
+// 0x1BC
+	int_addrPB = (*r00 << 16) | *(r00+1)
+	DMA_From_Memory(0x0B80, _addrPB, 0xC0);   // read first PB to 0x0B80
+	
+// 0x1C7	
+	*0x0E08 = 0x0000
+	*0x0E09 = 0x0140
+	*0x0E0A = 0x0280
+	*0x0E0B = 0x0400
+	*0x0E0C = 0x0540
+	*0x0E0D = 0x0680
+	*0x0E0E = 0x07C0
+	*0x0E0F = 0x0900
+	*0x0E10 = 0x0A40
+
+// 0x1E4
+	WaitForDMATransfer()
+	
+// 0x1E6		
+	Addr = (*0x0BA7 << 16) | *0x0BA8			
+	DMA_From_Memory(0x03C0, Addr, 0x80);	// Copy Update Data to 0x03C0  (AXPBUPDATE dataHi, dataLo)
+	
+// 0x1F4	
+	R03 = (*0x0B84) + 0x0B31		// AXPB->srcSelect + 0x0B31 ??? some kind of flag handling ??? SRCSEL can be 0x0 to 0x2
+	AC0.M = *R03
+	*0x0E15 = *AC0.M
+	
+// 0x1FD	
+	R03 = (*0x0B85) + 0x0B34		// AXPB->coefSelect + 0x0B34 ??? some kind of flag handling ??? COEF can be 0x0 to 0x2
+	AC0.M = *R03
+	*0x0E16 = *AC0.M
+
+// 0x206
+	R03 = (*0x0B86) + 0x0B11		// AXPB->mixerCtrl + 0x0B36 ??? some kind of flag handling ???	MIXCTRL can be 0x0 to 0xE 
+	AC0.M = *R03
+	*0x0E14 = *AC0.M
+	
+// 0x20F	
+	if (*0x0B9B == 0)						// AXPBITD->flag  (on or off for this voice)
+	{
+		// jmp to 0x23a
+		*0x0E42 = 0x0CE0
+		*0x0E40 = 0x0CE0
+		*0x0E41 = 0x0CE0
+		*0x0E43 = 0x0CE0	
+		
+		WaitForDMATransfer()
+	}
+	else
+	{
+		// code at 0x216
+		*0x0E40 = *0x0B9E + 0x0CC0		// AXPBITD->shiftL
+		*0x0E41 = *0x0B9F + 0x0CC0		// AXPBITD->shiftR
+		*0x0E42 = 0xCE0
+		*0x0E43 = 0xCE0
+		
+		WaitForDMATransfer()
+		
+		// 0x22a
+		Addr = (*0x0B9C << 16) | *0x0B9D	
+		DMA_From_Memory(0x0CC0, Addr, 0x40);		// (AXPBITD->bufferHi << 16 | AXPBITD->bufferLo) -> 0xCC0
+		WaitForDMATransfer()
+	}
+
+}
+
+void CMD0()
+{
+	
+}
+
+
+void CMD3()
+{
+
+	0x0E07 = R00
+	R00 = 0x0BA2		// AXPBUPDATE->updNum
+	R01 = 0x03C0
+	*0x0E04 = 0x05
+	
+	AC1 = 0
+	AC0 = 0
+	AX0.H = *R00++   // AXPBUPDATE->updNum[0]
+	AC1.M = 0x0B80
+
+// 0x256
+	for (i=0; i<AX0.H; i++)
+	{
+		AC0.M = *R01++
+		AC0.M = AC0.M + AC1.M
+		AX1.L = *R01++
+		R02 = AC0.M
+		*R02 = AX1.L
+	}
+	
+// 0x25c
+	R03 = 0x0E05
+	*R03++ = R01
+	*R03++ = R02
+	
+// 0x260
+	AC0.M = *0x0B87   // AXPB->state
+
+	if (AC0.M == 1)
+	{
+		// JMP 0x267 (AX_PB_STATE_RUN)
+		*0x0E1C = *0x0E42
+		
+		CALLR *0x0E15   // Load Sample (SrcSelectFunction)
+		
+		// 0x270
+		AC0.M = *0xBB3 	// AXPBVE->currentDelta		(.15 volume at start of frame)
+		AC1.M = *0xBB2	// AXPBVE->currentVolume
+		
+		//  0x278
+		AX0.L = AC1.M
+		AC1.M = AC1.M + AC0.M
+		AC0.M = AC0.M << 1
+		
+		SET15 // ????
+		
+		AX1.H = AC0.M
+		AC0.M = AX0.L
+		
+		AX0.L = 0x8000
+		R00 = 0x0E44
+		
+// 0x27f
+		// scale volume table
+		.
+		.
+		.
+/*		for (int i=0; i<32; i++)
+		{
+			*R00++ = AC0.M; 			
+			prod = AX0.L * AX1.H
+			
+			*R00++ = AC1.M; 
+			AC0 = AC0 + prod
+			prod = AX0.L * AX1.H
+
+			*R00++ = AC0.M; 
+			AC1 = AC1 + prod
+			prod = AX0.L * AX1.H					
+		}*/
+				
+// 0x29f
+		*0xBB2 = CurrentVolume
+		
+		
+// 0x2a1
+		// mutiply volume with sample
+		.
+		.
+		.
+		
+		
+// 0x2ea
+	// Call mixer
+	
+// 0x02f0
+
+		
+				
+	}
+	else
+	{
+		// JMP 0x332
+		.
+		.
+		.
+		.
+	}
+
+}
+
+// ===============================================================
+void Func_0x065D()
+{
+	
+	
+}