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First DSPSpy results. cleanup and commenting.

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@2999 8ced0084-cf51-0410-be5f-012b33b47a6e
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hrydgard
2009-04-18 19:26:06 +00:00
parent 5f0ac1db68
commit 8716a58ae3
6 changed files with 80 additions and 92 deletions
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22
Source/DSPSpy/dsp_code.ds
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@ -180,15 +180,21 @@ main:
; We can call send_back at any time to send data back to the PowerPC.
nop
nop
nop
nop
; Calling set16 here seemed to crash the dsp tester in strange ways
; until I added set40 in send_back. Seems clear that it affects something important.
cw 0x8600
call send_back
nop
nop
nop
nop
inc $acc0
call send_back
s16
inc $acc0
call send_back
; We're done - currently we only test one opcode, in this case 0x8600.
; It's possible to test many more in one go - just call send_back after each one.
@ -511,6 +517,8 @@ irq:
; DMA:s the current state of the registers back to the PowerPC. To do this,
; it must write the contents of all regs to DRAM.
send_back:
; make state safe.
set40
; store registers to reg table
sr @REGS_BASE, $r00
lri $r00, #(REGS_BASE + 1)