Can you please help me how to compile assembly code in linux?
I am using AMD processor code instructions...is that amd registers inbuilt?

with what file extension i should give while writing assembly code program?

How to compile the below assembly code in linux?

MOV CX,533H


_SND_SPKR_TONE:

MOV AL,0B6H

OUT 43h,AL ; 43h = PIT mode control word (page 377)

MOV AX,CX

NEWIODELAY

OUT 42h,AL ; 42h = Counter 2 (page 376)

MOV AL,AH

NEWIODELAY

OUT 42h,AL ; 42h = Counter 2 (page 376)

IN AL,61h ; 61h = PIT conter 2 (Speaker) (page 378)

MOV AH,AL

OR AL,3

NEWIODELAY

OUT 61h,AL

Is that assembly code written with gas syntax (gnu assembler) or with Intel/Masm syntax?

Is it 32 bit assembly or 64 bit assembly code?

I don't understand what you mean. Maybe some examples would help.

.asm is the traditional extension for Intel/Masm assembly files, though on Linux sometimes .s is used even for those. .s is the traditional extension for gas assembly files.

gas is the program normally used on Linux to "compile" assembly code. But for Intel/Masm syntax, you might need NASM (I think that is 32 bit only). I forget the name of the assembler that extends the feature set of NASM to include 64 bit and other enhancements. If you need 64 bit Intel/Masm syntax, I can look that up for you.

Edit: I just looked at your other thread started with the same subject (please don't do that). You want to "compile" 16 bit (not 32 or 64) assembly code in MASM syntax. NASM is probably the easiest tool for that. I'm not sure whether NASM is available as a package (.rpm) for Fedora.

With NASM, the correct command for compiling that code depends on how you plan to run that code. It looks like it is intended to run in DOS or maybe without an OS at all. Are you planning to reboot into to DOS (or no OS) to run it? Or do you plan to run it in some 16 bit DOS emulator? Or what?

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This is DOS assembly (16 bit code). Use something like Tasm to assemble it in a DOSbox. Don't count on it that it runs in Linux since it requires I/O port access.

No. The code in the other thread is 16 bit DOS Realmode code. It is rather plain code and when in a dosbox use A86 to compile or assemble it. A86 is a very good assembler. A386 is the 32 bit version with support for at least the Pentium III, perhaps even more.

Get A86 from http://www.eji.com

DOS assebler won't work on Linux. The system calls work very differently.

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http://www.linuxquestions.org/questi...dora11-815387/

If you're talking about the code in this thread, then it simply won't work in Linux.

The system call mechanism and the system calls themselves are very different.

Wrong

If you run it in a DOSbox it runs better than on a 386DX40 http://www.dosbox.com/

I run Wolfenstein 3D and it outperforms the dedicated DOS machines I used to run it on.

It will in a DOSbox....

In dosbox I can use my FST Modula-2 compiler for DOS to do all kinds of magic. No sweat. Try it!

I know it would work in a DOS emulator under Linux, but it still won't run on Linux.

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cvr also you might want to install Fedora 13 FIRST .
fedora 11 is about to hit it's END OF LIFE in a week or 2 .

I could now write: A dosbox is still 'on Linux' but I won't do that since it sounds so pedantic..

I meant "not directly on Linux", as in:

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Sir,
By seeing just the assembly code,How can we tell the code is 16-bit or 32 bit?
In my opinion it depends on the number of data lines of the processor!
am i rite?
What is the entry function i need to give if i want to compile the assembly code? (LIKE we will give main() in c-language)

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I was using cs 5536 chipset(AMD) in the above assembly code ...

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