Assembly mnemonic

Assembly mnemonic

[J.S.Souza]

I was looking at the assembly output from a small C program just to see how 
the compiler dealt with a certain procedure and can't figure out what the 
mnemonic "cltd" is.  Does anyone know what this is?  There is NO arguments 
for it, it's just by itself on a line.

		Cheers,
		Jeff Souza

Re: Assembly mnemonic

[Rudolf Marek]

Hello,

google.com found this:

   The Intel-syntax conversion instructions
      * cbw -- sign-extend byte in %al to word in %ax,
      * cwde -- sign-extend word in %ax to long in %eax,
      * cwd -- sign-extend word in %ax to long in %dx:%ax,
      * cdq -- sign-extend dword in %eax to quad in %edx:%eax,
      * cdqe -- sign-extend dword in %eax to quad in %rax (x86-64 only),
      * cdo -- sign-extend quad in %rax to octuple in %rdx:%rax (x86-64 only)

are called cbtw, cwtl, cwtd, cltd, cltq, and cqto in AT&T naming. as  as 
                             ^^^^^
accepts either naming for these instructions.

http://sources.redhat.com/binutils/docs-2.12/as.info/i386-Mnemonics.html


regards
		Rudolf



On Tue, 28 May 2002, J.S.Souza wrote:

> Date: Tue, 28 May 2002 09:25:30 -0700
> From: J.S.Souza <jssouza@pacbell.net>
> To: linux-assembly@vger.kernel.org
> Subject: Assembly mnemonic
> 
> I was looking at the assembly output from a small C program just to see how 
> the compiler dealt with a certain procedure and can't figure out what the 
> mnemonic "cltd" is.  Does anyone know what this is?  There is NO arguments 
> for it, it's just by itself on a line.
> 
> 		Cheers,
> 		Jeff Souza
> -
> To unsubscribe from this list: send the line "unsubscribe linux-assembly" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
> 
>