comp.lang.asm.x86 Google Group

Re: Port binding revisited

spamt...@crayne.org (Hamlin) — Tue, 07 Oct 2008 23:23:25 UT

I'd like to thank Chuck yet again for helping me with this. turned out
I was yet again relying on bad info from AsmRef, and specifying 11 in
place of 10 for sys.recv. Chuck responded quickly and got the problem
solved for me.
Thanks again, Chuck!

Re: Penalties for segment overrides on 8086?

spamt...@crayne.org (Jim Leonard) — Tue, 07 Oct 2008 17:15:24 UT

It does, thank you.

Re: Penalties for segment overrides on 8086?

spamt...@crayne.org (Jim Leonard) — Tue, 07 Oct 2008 17:15:04 UT

This is getting off-topic, but I have a Mockingboard clone soundcard
(came with Bank Street Music Writer) that does this. Put it in a
faster machine than the original PC/XT and the sound it produces is at
a higher pitch (!). And Adlib cards are also notorious to needing
time to "settle" before you send them another command.

Re: beginner question : writing OBJ with HLA for floats

spamt...@crayne.org (NathanCBaker) — Tue, 07 Oct 2008 16:50:55 UT

This chapter of AoA shows how to integrate HLA with C/C++:
[link]
Feel free to ask questions for clarification or post the code (or
error messages) if you run into trouble.
I am pretty sure that x86 instructions will not run on the .NET

Re: Penalties for segment overrides on 8086?

spamt...@crayne.org (Bob Masta) — Tue, 07 Oct 2008 12:56:57 UT

On Mon, 6 Oct 2008 09:40:54 -0700 (PDT), Jim
The worst thing was dealing with cards on the ISA
bus after the AT bus speed was bumped up to 6,
then 8 MHz. There were apparently many card
designs that simply couldn't handle the faster
timing, so you had to insert I/O delays after
every port write. If you didn't, the code might

Re: Penalties for segment overrides on 8086?

spamt...@crayne.org (Bob Masta) — Tue, 07 Oct 2008 12:45:15 UT

On Mon, 06 Oct 2008 17:33:35 -0500,
According to Eggebrecht in "Interfacing to the IBM
Personal Computer", there is/was also a line on
the ISA bus called I/O CH CK (I/O Channel Check)
that could be enabled to generate a NMI for error
conditions on ISA bus cards.
I seem to recall that certain EGA adapters used it

beginner question : writing OBJ with HLA for floats

spamt...@crayne.org (FeBi) — Tue, 07 Oct 2008 10:23:25 UT

Hi All,
I know this is a moderated list. I hope I am not posting somewhere
wrong. You are very welcome to forward me with just one line to the
correct destination even if you know the answer. I am not in a lazy
mode.
I am a beginner, The reason I am interested in HLA is to make fast OBJ
files for float calculations which I do a lot and use them in my C or C

Re: Port binding revisited

spamt...@crayne.org (Chuck Crayne) — Tue, 07 Oct 2008 05:39:00 UT

On Mon, 6 Oct 2008 21:53:33 -0700 (PDT)
Yes, you may send it to me at ccra...@crayne.org. Tar would be good,
but I can probably handle whatever is convenient for you.

Re: Port binding revisited

spamt...@crayne.org (Hamlin) — Tue, 07 Oct 2008 04:53:33 UT

Aargh. I typed out a long response but the posting mechanism appears
to have eaten my post. I'll be happy to send you the code via email if
you're amenable to receiving it that way. I write long labels and they
don't work well in a forum with enforced word wrap. Lemme know if
you'd like me to do that, along with what compression algorithm you

Re: [Clax86list] Port binding revisited

spamt...@crayne.org (Charles Crayne) — Tue, 07 Oct 2008 02:37:11 UT

On Mon, 6 Oct 2008 14:28:56 -0700 (PDT)
Yes, but you haven't told us enough about the hoops you already jumped
through before you to to the accept. For example, my code handles
multiple concurrent connections, so I set up a socket to listen for new
connections:
;initialize listening fd
;create socket descriptor

Re: Penalties for segment overrides on 8086?

spamt...@crayne.org (ArarghMail810NOSPAM) — Mon, 06 Oct 2008 22:33:35 UT

On Mon, 6 Oct 2008 09:39:01 -0700 (PDT), Jim Leonard
A0T=3D
here
0h=3D
,
Memory parity error, I think.
--=3D20
ArarghMail810 at [drop the '[link] from ->] [link]
BCET Basic Compiler Page: [link]
To reply by email, remove the extra stuff from the reply address.

Re: Port binding revisited

spamt...@crayne.org (Hamlin) — Mon, 06 Oct 2008 21:11:02 UT

I also just finished my experiment with sys.poll to get it to block
properly. It *did* in fact block, but is still receiving the buffer
size in zeroes regardless of the data available. I begin to suspect I
have to do something else to point it to the right data.

Re: Port binding revisited

spamt...@crayne.org (Hamlin) — Mon, 06 Oct 2008 21:28:56 UT

I tried using sys.recvfrom instead, which returned EACCES, leading to
the question:
When a new socket is created with sys.accept, that's a bi-directional
socket out of the box, right? I can both write to and read from it
without having to jump through any hoops, yes?

Re: Port binding revisited

spamt...@crayne.org (Hamlin) — Mon, 06 Oct 2008 20:39:45 UT

Tried it with MSG_WAITALL, which is documented in socket.h as telling
the function to wait for a full request, but that didn't alter the
behaviour at all.

Re: Penalties for segment overrides on 8086?

spamt...@crayne.org (Terje Mathisen) — Mon, 06 Oct 2008 20:30:48 UT

You have _no_ idea:
My first (ca 1982) compiler was v0.3c of Logitech's ModulaII compiler,
it wasn't quite ready, i.e. small stuff like for () loops ddn't work,
only while ().
I started by using this to write interrupt drivers, by hand-assembling
the code (using DEBUG to help out) and entering the code as hex bytes.