* Extended Asm
@ 1999-08-20 3:01 Bob Doyle
1999-08-20 3:11 ` David Edelsohn
0 siblings, 1 reply; 2+ messages in thread
From: Bob Doyle @ 1999-08-20 3:01 UTC (permalink / raw)
To: linuxppc-dev
Where can I find info on the GCC "extended asm" syntax
for PPC specifically. I think I understand the x86
syntax.
A brief search of dejanews hinted that I've got to read
the GCC code. Any hints?
Thanks,
Bob Doyle
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* Re: Extended Asm
1999-08-20 3:01 Extended Asm Bob Doyle
@ 1999-08-20 3:11 ` David Edelsohn
0 siblings, 0 replies; 2+ messages in thread
From: David Edelsohn @ 1999-08-20 3:11 UTC (permalink / raw)
To: Bob Doyle; +Cc: linuxppc-dev
The basic syntax of GCC extended asm statements is identical on
all platforms. The details are the syntax of instructions for a
particular architecture and assembler, and the GCC constraint letter for
the arguments that get substituted into the assembly language. The
constraint letters specific to PowerPC are listed in the GCC manual in the
Machine Description -- Constraints -- Machine Constraints section under
IBM RS6000.
David
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