MESSAGE
| DATE | 2004-09-01 |
| FROM | Billy
|
| SUBJECT | Re: [hangout] Assembly
|
On Wed, Sep 01, 2004 at 02:31:57PM -0500, Steve Milo wrote:
>
> Guys, thanks very much for the help on this.
>
> I'm looking at BC's website and there doesnt seem to be any information on
> late late registration. The phone number for the registrars office is (718)
> 758-8120. If anything, I think if you have the money CUNY will take it if you
> arent taking it for credit. This was only the second time the class has met,
> the next class is in a week. Labor day we will be off, between then and now
> space may still be available.
>
> The 'lab' where I work has TASM on the machines, I can use them in a pinch.
> As far as waiting for an assembly course that doesnt use TASM or MASM, that
> will be a long wait. The three OSes they have here are Solaris, OSX and
> winduz. No one teaches assembly on the Sun machines, I spoke to the Sun
> admin. He tells me the faculty was interested, including one of their prize
> best Unix professors (Whitlock). But this was a long time ago and no one has
> picked up the ball. Nonetheless there could be potential.
Learning 'as' would enable you to program Sparc, PPC, and IA32
with a uniform syntax, on any OS you want using only free software.
When you use GDB to debug a program later on in life, you're going
to be staring at 'as' (AT&T) syntax, so it's really best to learn that!
TASM vs. NASM vs. MASM are all very limited languages in comparison
with regard to applicability, portability, availability, and utility.
> Also, I think I can mention to the professor about NASM and see what
> she says. She doesnt seem to be hung up on any particular OS so I
> dont think I will get into a political discussion with her.
'as' !!!
> So far the only things she has talked about are mov, four registers (ax, bx,
> cx, dx), add, sub, int21h, .model, .data and a few other things that I think
> are fairly generic. Correct me if I'm wrong.
IA32 register names are assigned by intel and useful for any assembler.
'INT 21h' is a DOS-ism. Best avoided.
'.model' is a 16-bit-ism. Best avoided.
'.data' is universally useful.
> I have heard she is strict (stronger sentiments have been expressed from
> lesser people), I would describe her as knowledable. She rattles off assembly
> like its her own language. She wrote the book we used in Intro to C
> Programming (1.5).
What book? There are a LOT of crappy books.
Teaching 'INT 21h' in 2004 doesn't make a lot of sense to me, unless
it's for historical interest only.
> My next question is going to be very silly and naive but.
> Does Linux run in protected mode or real mode?
Protected!
> Strangely I was taught the memory modes a long time ago in High School
> or Junior High School. But never saw the need to remember it, the
> importance hasnt been stressed up until now.
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