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MartinHschei 13 Feb 2008, 12:59
Any good books on learning OS independent assembly?
All the books i find seems to be assembly with Linux,DOS or Win32. What seems to be something what i'm looking for is this one: http://www.amazon.com/80X86-IBM-Compatible-Computers-Interfacing/dp/013061775X/ref=sr_1_12?ie=UTF8&s=books&qid=1202907109&sr=8-12 From the back cover:"DOS memory management". I'm looking for a book that is about "standard" x86 assembly language. What i think; there is no such thing as a memory model without a OS? Just X amount of memory addresses. Got a lot of questions like this and want to get them answered. Any one got experience with the book mentioned above or got any other recommendations? // Martin |
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13 Feb 2008, 12:59 |
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dap 13 Feb 2008, 17:19
Have you read something more general like Modern operating systems before ?
Last edited by dap on 14 Feb 2008, 14:02; edited 1 time in total |
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13 Feb 2008, 17:19 |
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MartinHschei 13 Feb 2008, 19:49
I might be misunderstanding, but the MenuetOS ,for example, have to be written in "OS independent assembly", right?
Case you didn't noticed; I'm new to assembly and programming i general. I'm actucally reading a book on Win32 assembly by Kip Irvine which is good. Just got a feeling that it's packed with references to certain libraries which do large parts of the work. But i guess that's the way it is with Windows and assembly? With this book there is actually his own libraries 'irvine32.inc' etc. Don't know if those contain the same as those kernel32 ++ libraries? Any method for finding out? // Martin |
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13 Feb 2008, 19:49 |
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revolution 13 Feb 2008, 19:53
MenuetOS is the OS, so it will necessarily be very dependant upon an OS, i.e. itself.
Basically you can't go about writing programs without running them on something. So for a beginner you will need some OS to run your code. The only way to run things without an OS is to write you own OS/bootloader type of thing that will run on your computer hardware at startup. |
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13 Feb 2008, 19:53 |
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edfed 14 Feb 2008, 00:40
no need of an os to execute applications...
need a librairy, loaded at boot time, linked to applications, and then executed... if it is for 16 or 32 bit programing, the loader load a disk buffer, and then copy it to an application selector, jump to application selector... link librairy by far pointers... no ring protection.. maybe paging... All in the trio: 1) boot loader 2) system loader 3) application loader  |
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14 Feb 2008, 00:40 |
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MichaelH 14 Feb 2008, 01:03
Is there anyone out there who is stoned at the moment and can tranlate what edfed posted...... I could reply to him and say "yeah man", followed by a lot of giggling I suspose
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14 Feb 2008, 01:03 |
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roboman 14 Feb 2008, 04:26
In short, the most basic function of the os is to load and run programs. You can run a program with no os, but you really need to write two programs, one that does what ever you want and another little one that loads and runs that program (the computer on boot up loads a tiny section of what ever is defined as the boot drive, that tiny section needs to contain a small program that loads your big program or you are trying to do something really simple and can cram it into around 1/4 k of space)
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14 Feb 2008, 04:26 |
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MichaelH 14 Feb 2008, 05:12
Quote:
You mean the os that edfed says you don't need. Guess the drugs and alcohol are really starting to do some damage huh edfed |
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14 Feb 2008, 05:12 |
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edfed 14 Feb 2008, 15:51
Code: comloader: kernel=1000h entry=100h ;version 27/11/2007 01:48 org 7C00h mov ax,cs mov ss,ax mov ds,ax mov [.bootdrive],dl mov ax,27fh ;load 64k mov cx,2 mov dh,0 push word kernel+entry/16 pop es mov bx,0 int 13h cmp [.bootdrive],0 jl @f mov dx,3f2h mov al,0 out dx,al @@: mov ax,kernel mov ds,ax mov ss,ax call kernel:entry int 19h times 505-($-$$) db 0 ;here need of the global root, extended to other sectors .bootdrive db ? ;current bios drive, file system load the boot sector with drive?. .nextsectorentry dd 0 ;as it names means, it is the next sector for entry in global root dw 0aa55h ;normally set for boot,but is unused by non boot drives. and then: Code: include 'comloader.inc' org 100h .... ... .. retf |
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14 Feb 2008, 15:51 |
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rugxulo 14 Feb 2008, 19:02
MartinHschei, you may as well choose what OS you will be using the most and target learning assembly for that.
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14 Feb 2008, 19:02 |
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