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Index > Main > Help! Control, debug, Test ,Segment register ???

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MinhHung



Joined: 10 Sep 2010
Posts: 51
Location: Viet Nam
MinhHung
did you visit http://www.assembly.happycodings.com/index.html

i have reading some 'sample source codes', but i don't understand some asm line

Code:
mov     bh,es:[10h]
....
cs mov eax,ebx 
--etc    


i don't know how to use it, what does it use for?
Control register: CRx
debug register: DRx
Test register: TRx
Segment register: CS, DS, SS, ES, FS, GS

thank!

_________________
sorry for my english
Post 14 Jan 2012, 04:32
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DOS386



Joined: 08 Dec 2006
Posts: 1901
DOS386
> did you visit

NO

> i have reading some 'sample source codes',
> but i don't understand some asm line

And what are we supposed to do about that ?

> mov bh,es:[10h]

NOT valid FASM syntax Shocked

http://board.flatassembler.net/topic.php?p=91767#91767
http://board.flatassembler.net/topic.php?p=106603#106603

> mov eax,ebx

copy value from EBX into EAX Shocked

> Control register: CRx
> debug register: DRx

advanced stuff, ignore them

> Test register: TRx

80386 only, ignore them

> Segment register: CS, DS, SS, ES, FS, GS

important for 16-bit programming

Please read the docs (RTFM) and the FAQ's (RTFF) and make sure to clarify what you are trying to do (what OS to support, what assembler to use, ...).
Post 14 Jan 2012, 04:48
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MinhHung



Joined: 10 Sep 2010
Posts: 51
Location: Viet Nam
MinhHung
thank you! ,
i don't connect to internet , i only have 3-6 hour/week in library to search some document... i'm backward
that is good, if has a documents to read offline

thank you agian
Post 18 Jan 2012, 04:13
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JohnFound



Joined: 16 Jun 2003
Posts: 3502
Location: Bulgaria
JohnFound
1. Download all "IntelĀ® 64 and IA-32 Architectures Software Developer Manuals"
2. Download some FASM package (FASMW is good for Windows programming). There is a copy of "flat assembler 1.69 Programmer's Manual" inside. Besides the full description of FASM syntax, there is a short description of the instructions, so you can make quick check up. There are also examples you can compile, run and modify.
Post 18 Jan 2012, 07:08
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