2 messages, 2 authors, 2001-08-20 · open the first message on its own page
From: Raghava Raju <hidden>
Date: 2001-08-17 17:14:37
Hi
I was unable to find the registers for
program counter,stack pointer. Which registers
I should use to access these values in powerpc.
Thank You
Raj.
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From: Scott Anderson <hidden>
Date: 2001-08-20 17:46:36
Raghava Raju wrote:
I was unable to find the registers for program counter,stack pointer. Which registers I should use to access these values in powerpc.
Er, there isn't really an program counter register that you can read.
The only way I know to find it out the value of the internal "Next
Instruction Address" is to do a bl and then look at the LR (link
register) before doing a blr.
As far as the stack pointer goes, the PowerPC ABI (Application Binary
Interface) states that gpr1 should be used as the stack pointer and
therefor, it is...
Scott Anderson
scott_anderson@mvista.com MontaVista Software Inc.
(408)328-9214 1237 East Arques Ave.
http://www.mvista.com Sunnyvale, CA 94085
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