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Programming > Assembly x86 > Re: Assemblers
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Re: Assemblers

by Terence <spamtrap@[EMAIL PROTECTED] > Mar 14, 2008 at 03:56 PM

On Mar 14, 10:49 pm, "Wolfgang Kern"  <spamt...@[EMAIL PROTECTED]
> wrote:
 (Terence)
> >.. It seems Wolfgang has seen this numeric-named register
> > usage syntax elsewhere too; I wasn't sure if this was or was not
> > Herbert's personal syntax. But I didn't come upon it by disassembly,
> > but from correspondance by the authors, modifiers or commentors. I'm
> > sure it isn't the variant Wolfgang mentions.
>
> Yeah, I've seen FPGA/ASIC designers use this notation sometimes.
> I don't remember exact where I saw Numbered Register used first, they
may
> have entered my world from the 16*16 register-matrix using CDP1802 or
any
> other long forgotten single chip, or even from early Motorola-based
tools.
>
> > It's an interesting syntax, but even if registers are interchangeable
> > in usage, it is far easier to have a named reference than a numbered
> > reference, so I propose to quickly write a to-from parser between my
> > preferred ASM reference usage and the rn, sn syntax
>
> Good idea, but be aware to find some different interpretations of
> register-numbers.
> ie: Herbert uses a functional logic for ordering: eax,edx,..
> while I use the given opcode-patterns: eax,ecx,edx... to match PUSHAD
> ...

Ouch!
Good thing you said that, it explains why r1 ~ BX wasn't behaving like
I thought it should..
Ah! Assumptions..
 




 20 Posts in Topic:
Assemblers
Terence <spamtrap@[EM  2008-03-11 15:04:37 
Re: Assemblers
santosh <spamtrap@[EM  2008-03-12 04:57:52 
Re: Assemblers
NoSpam@[EMAIL PROTECTED]   2008-03-12 13:08:00 
Re: Assemblers
"Wolfgang Kern"  2008-03-12 13:26:33 
Re: Assemblers
"Maarten Kronenburg&  2008-03-12 16:50:58 
Re: Assemblers
Terence <spamtrap@[EM  2008-03-12 16:10:45 
Re: Assemblers
Frank Kotler <spamtra  2008-03-13 12:19:33 
Re: Assemblers
santosh <spamtrap@[EM  2008-03-13 16:01:25 
Re: Assemblers
"Wolfgang Kern"  2008-03-14 12:49:58 
Re: Assemblers
Frank Kotler <spamtra  2008-03-14 17:32:29 
Re: Assemblers
"Wolfgang Kern"  2008-03-15 12:33:19 
Re: Assemblers
Phat Sam <spamtrap@[E  2008-03-13 01:06:21 
Re: Assemblers
Terence <spamtrap@[EM  2008-03-14 15:25:26 
Re: Assemblers
Terence <spamtrap@[EM  2008-03-14 16:01:03 
Re: Assemblers
Terence <spamtrap@[EM  2008-03-14 15:56:07 
Re: Assemblers
"Wolfgang Kern"  2008-03-15 12:47:35 
Re: Assemblers
Terence <spamtrap@[EM  2008-03-14 16:09:59 
Re: Assemblers
Terence <spamtrap@[EM  2008-03-14 15:51:47 
Re: Assemblers
nbaker2328 <spamtrap@[  2008-03-15 22:28:37 
Re: Assemblers
Rugxulo <spamtrap@[EM  2008-03-20 13:32:45 

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tan12V112 Fri Jul 25 20:56:44 CDT 2008.