Hello , I am a newbie for the fo

• Sep 22, 2002

• #2

arcbkc

Programmer

Sep 6, 2001

22

US

Hello, My first question for you is what assembler are you using? Are you working on an IBM clone pc? Rod

 

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• Sep 22, 2002

• Thread starter
• #3

asterothe

Programmer

Sep 22, 2002

6

US

Yes I am using IBM PC with MASM 6.11.

Thanks.

Korhan

 

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• Sep 23, 2002

• #4

arcbkc

Programmer

Sep 6, 2001

22

US

Korhan, tell me what you see when you add 1 + 1? Do you get 02 or 32? Rod

 

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• Sep 24, 2002

• Thread starter
• #5

asterothe

Programmer

Sep 22, 2002

6

US

I get 02 ascii, symbols.
Thanks for your interest.

Korhan

 

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• Sep 25, 2002

• #6

oleksii

Technical User

Jul 27, 2002

36

RU

if you are dealing with decimal numbers, just add 30h to every value to display:
ASCII "0" ...."9" have hex values 30h ... 39h

 

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• Sep 26, 2002

• Thread starter
• #7

asterothe

Programmer

Sep 22, 2002

6

US

I have to do it digit by digit right?
So how can I write a big number?
I am very new so forgive my stupid questions.


Korhan

 

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• Sep 30, 2002

• #8

AmkG

Programmer

May 12, 2001

366

PH

Yes do it digit by digit.

To do big numbers (more than one digit), first divide the number into individual digits. You can just keep dividing by ten, then get the remainder which is the lowest digit. The remainder gets stored somewhere, and the result is divided again until it is zero, in which case all the digits have all been taken already. Then add 030h to each digit, and make sure you put them on screen in proper order.

I guess we all have to start somewhere.... "Information has a tendency to be free. Which means someone will always tell you something you don't want to know."

 

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• Oct 12, 2002

• Thread starter
• #9

asterothe

Programmer

Sep 22, 2002

6

US

Thank you very much.
Now I have bigger problems.
I have to use subroutines for
multiplaction . Whnever I do
call xxxx

and in xxx
xxx:

.
.
.
ret

I don't return to where I came! Stack changes not
only IP, but CS as well. i tried many things, still I am stuck.

Korhan

 

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• Oct 17, 2002

• #10

oleksii

Technical User

Jul 27, 2002

36

RU

looks you are in 16-bit mode
to avoid pushing CS on the stack, declare your functions as NEAR

ProcName Proc near
xxxxx

ret
ProcName endp

then you get near call

otherwise keep your functions as far but use RETF (RETurn Far) on exit

 

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• Oct 18, 2002

• #11

AmkG

Programmer

May 12, 2001

366

PH

It is not recommended, BTW, that you use a xxx: type label as the argument for a 'Call' command. Do it properly: use xxx proc/endp. Rets inside a proc/endp will automatically be matched to the expected Call type, near or far.
"Information has a tendency to be free. Which means someone will always tell you something you don't want to know."

 

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