0x2e & 0x3e prefixes

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* 0x2e & 0x3e prefixes
@ 2003-08-23  8:37 Maciej Hrebien
  2003-09-07  8:50 ` Maciej Hrebien
  0 siblings, 1 reply; 2+ messages in thread
From: Maciej Hrebien @ 2003-08-23  8:37 UTC (permalink / raw)
  To: linux-assembly

Hi there,

p4 & xeon cpus (as part of the sse2 extension) have branch hints
prefixes (0x2e, 0x3e). My question is: are there any mnemonics for it?
How gas/nasm handles this issue? Hard coding only?

Regards,

-- 
Maciej Hrebien

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: 0x2e & 0x3e prefixes
  2003-08-23  8:37 0x2e & 0x3e prefixes Maciej Hrebien
@ 2003-09-07  8:50 ` Maciej Hrebien
  0 siblings, 0 replies; 2+ messages in thread
From: Maciej Hrebien @ 2003-09-07  8:50 UTC (permalink / raw)
  To: linux-assembly

Maciej Hrebien wrote:
> 
> p4 & xeon cpus (as part of the sse2 extension) have branch hints
> prefixes (0x2e, 0x3e). My question is: are there any mnemonics for it?

Forgotten post.. it's "jcc,pn" or "jcc,pt" (echo "l:.byte 0x2e;je
l;.byte 0x3e;je l"|as|objdump -x). 

-- 
Maciej Hrebien


^ permalink raw reply	[flat|nested] 2+ messages in thread

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