CODEWITHSUNDEEP
assemblydosx86-16
C0dev0id
C0dev0id

Reputation: 17

Weird garbage in output

So I im using tasm 1.4 and I was making a program to bring out CS14 in big made up in smaller letters and numbers. about 1/4 of the the way through I ran it and some weird stuff comes up after the output of my last msg saying stuff like hgweh26I^U%EYWGT#YWHSDWrite disk FullHSJETESRGDTFHGJ!

the error looks like this http://s18.postimg.org/h35196kop/TD2.png

This is my code(Although its not done yet):

MODEL SMALL
.STACK 100H
.DATA
MSG DB 27  DUP('*'),13,10
MSG1  DB 27  DUP('*'),13,10
MSG2  DB 3 DUP('*')
MSG3  DB 2 DUP(' ')
MSG4  DB 3 DUP('C')
MSG5  DB 2 DUP(' ')
MSG6  DB 4 DUP('S')
MSG7  DB 2 DUP(' ')
MSG8  DB '1'
MSG9  DB 2 DUP(' ')
MSG10  DB '4 4'
MSG11  DB 2 DUP(' ')
MSG12  DB 3 DUP('*'),13,10
.CODE
MAIN PROC
;INIT
MOV AX, @DATA
MOV DS, AX
;DISPLAY
LEA DX, MSG
MOV AH, 9
INT 21H
;RETURN TO DOS
MOV AX, 4C00H
INT 21H
MAIN ENDP

Upvotes: 1

Views: 1539

Answers (1)

Michael
Michael

Reputation: 58427

Strings printed with INT 21H / AH=09H are supposed to be terminated by a '$'-character (ASCII code 36). I don't see any such terminator after your strings, so the interrupt function will just keep on printing until the terminator is found.

Upvotes: 2

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