SPU Isolated Modules Reverse Engineering

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Revision as of 17:23, 25 February 2011 by Anonymous (Privacy policy)
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aim_spu_module

Debug messages

Address Message
0x36f0 "(spu)start aim spu module!\n"
0x3710 "(spu) PU DMA area start address is not align 16byte\n"
0x3750 "(spu) PU EID area start address is not align 16byte\n"
0x3790 "(spu) PU DMA area size is not equall to AIM_DMA_SIZE\n"

Functions

Address Name Info
0x1440 debug_print As the name already states...
0x3168 write_tag_mask This function has one argument ($4).

Disasm

write_tag_mask
//(param_0:$4)
{
 //3168:	40 80 00 02 	il	$2,0 //Update immediately, unconditional.
 //316c:	21 a0 0b 82 	wrch	$MFC_WrTagUpdate,$2
 wrch(MFC_WrTagUpdate, 0);
 //3170:	01 e0 0b 83 	rchcnt	$3,$MFC_WrTagUpdate
 //3174:	7c 00 41 85 	ceqi	$5,$3,1
 //3178:	20 7f ff 05 	brz	$5,0x3170	# 3170
 while(rchcnt(MFC_WrTagUpdate) != 1);
 //317c:	01 a0 0c 02 	rdch	$2,$MFC_RdTagStat
 $2 = rdch(MFC_RdTagStat);
 //3180:	0b 61 01 86 	shl	$6,$3,$4
 //3184:	21 a0 0b 06 	wrch	$MFC_WrTagMask,$6
 wrch(MFC_WrTagMask, 1 << param_0);
 //3188:	40 80 01 03 	il	$3,2 //Update tag status if or when all enabled tag groups have “no outstanding operation” status.
 //318c:	21 a0 0b 83 	wrch	$MFC_WrTagUpdate,$3
 wrch(MFC_WrTagUpdate, 2);
 //3190:	01 a0 0c 02 	rdch	$2,$MFC_RdTagStat
 $2 = rdch(MFC_RdTagStat);
 //3194:	35 00 00 00 	bi	$lr
 return;
}