still no accelerated X ($#!$*)

David Edelsohn dje at watson.ibm.com
Fri Jan 21 05:19:48 EST 2000


	Why does each application/library define its own, incorrect
definition of byte-reversed instructions?  Doesn't some Linux/PPC header
file define this once in a awy that could be imported by others?

	One cannot use "r" as a constraint for a base address, that is
what the GCC PowerPC port defines "b" for.  The load/store instruction
patterns in the GCC PowerPC machine description file use a different
constraint letter for the base address, and anyone writing inlined
assembly -- especially loads and stores -- should browse the GCC machine
description.

David


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