On 03-05-12 13:27, Thomas Schatzl wrote:
...
function reverse(b : byte) : byte; assembler; nostackframe;
asm
.long 0xe6ff0f30 // rbit r0, r0
lsr r0, r0, #23
end;
Hi,
I've been looking a bit further at this.
I disassembled the code and this is the result :
8000150: e6ff0f30 rbit r0, r0
8000154: ea4f 50d0 mov.w r0, r0, lsr #23
8000158: 46f7 mov pc, lr
Wouldn't it be possible to do
rbit r0, r0, lsr #23
When reading the ARM programming manual I believe it should.
But do I gain something ?
Regards,
Koenraad Lelong.
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