Why do SALC exist?

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l4m2

Joined: 15 Jan 2015
Posts: 674

l4m2 19 Feb 2015, 10:10

Code:

db 0D6H

it do the job just as

Code:

SBB AL,AL

.So why is it there?[/code]

19 Feb 2015, 10:10

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 20299
Location: In your JS exploiting you and your system

revolution 19 Feb 2015, 10:57

Ask Intel. They invented it.

But anyhow the flags are altered by SBB so it isn't the same.

19 Feb 2015, 10:57

badc0de02

Joined: 25 Nov 2013
Posts: 215
Location: %x

badc0de02 19 Feb 2015, 10:58

i think

Code:

SALC

is a method how to check if carry flag set idk
while

Code:

 sbb al,al

needs 2 bytes instead of only one

19 Feb 2015, 10:58

Mikl___

Joined: 30 Dec 2014
Posts: 129
Location: Russian Federation, Irkutsk

Mikl___ 20 Feb 2015, 01:27

Hi, l4m2 !
because the SALC is a rudiment of command set intel 8080/8085

20 Feb 2015, 01:27

l4m2

Joined: 15 Jan 2015
Posts: 674

l4m2 27 Mar 2015, 14:08

Mikl___ wrote:

Hi, l4m2 !
because the SALC is a rudiment of command set intel 8080/8085

So do you think it a good idea to assemble "SETC AL" into it?

27 Mar 2015, 14:08

l4m2

Joined: 15 Jan 2015
Posts: 674

l4m2 27 Mar 2015, 14:32

I meant any time 0D6H is used for other things as $4x

27 Mar 2015, 14:32

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