29 Oct
2019
29 Oct
'19
4:29 a.m.
On Mon, Oct 28, 2019 at 4:24 PM Robert Clausecker <fuz(a)fuz.su> wrote:
Hi Warner,
On Mon, Oct 28, 2019 at 04:08:53PM -0600, Warner Losh wrote:
Doh! I've been mixing the two up since the 90s :(. Yea, this stuff isn't
AT&T syntax... It's from a compiler from MIT... I should have taken the
hint that it used MIT sequence :)
Warner
VENIX 2.0 had this. It was a Pure AT&T syntax
w/o % signs:
eg
|
| VENIX/86 start off (bootstrap starts execution at location 0 `start').
|
| Relocate complete kernel down to low memory.
.text
start: cli
mov dx,#LOWMEM | base of relocated kernel
mov cx,cs
cmp cx,dx | are we there (put there by bootstrap) ?
beq L0002 | Yes.
mov ds,cx
which is clearly op dst, src.
op dst, src is Intel syntax. AT&T syntax has op src, dst like MACRO-11.
There are a number of other differences: (a) | instead of / or # as a
comment
character (b) different mnemonics (beq instead of je) and (c) # instead of
$
as the comment character.
Without seeing some more code, I'd say it's not AT&T syntax.