The AIX assembler uses "1" for register 1 -- which surprised me. I
thought it accepted
both 1 and r1.
Anyhow, in one of my asm statements, I want to specify that register
1 (the stack pointer)
is being changed. So I did this (so far)
asm("lwz 1, %0" : : "rm" (newbase));
I put "rm" as the constraint because it can be either a register or a
memory location.
Should I just put "m"? GCC (4.0.2) seems to produce the same code
either way.
Also, should I put "1" as being clobbered? Like:
asm("lwz 1, %0" : : "m" (newbase) : "1" );
Thanks,
Perry Smith ( pedz@xxxxxxxxxxxxxxxx )
Ease Software, Inc. ( http://www.easesoftware.com )
Low cost SATA Disk Systems for IBMs p5, pSeries, and RS/6000 AIX systems
