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Top Forums Programming Ok i have a small assembly question Post 302638083 by Errigour on Wednesday 9th of May 2012 11:21:05 PM
Old 05-10-2012
Here's receive it's kind of like the line right before it accept it defines a line that is 30 bytes long and everything else is truncated.
Code:
Receive db 30d

Here's line 18 This code sends a string to a file which if 0 I believe sends the string to stdout. I want to concatenate dx and '$', '$' being the string I want to add to the end of dx which should be Receive at this point
Code:
        ; Call to 21h, again prints the line
        mov ah, 09h
        mov dx, Receive
        int 21h

And here's a highlight about line 18. dx is the line int 21h will print if you mov ah, 09h and don't change ah. And it actually is a stupid line because receive was already moved into dx right before it. click the image for a list of interrupt options for 21h.
Code:
DOS INT 21h - DOS Function Codes
ImageAH = 09h - WRITE STRING TO STANDARD OUTPUT
  Entry: DS:DX -> '$'-terminated string
  Return: AL = 24h
  Notes: ^C/^Break are checked
  SeeAlso: AH=02h,AH=06h"OUTPUT"

---------- Post updated at 11:21 PM ---------- Previous update was at 11:20 PM ----------

I just want to strcat(dx, '$') right before int 21h/line 19
 

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SPLIT(1)								FSF								  SPLIT(1)

NAME
split - split a file into pieces SYNOPSIS
split [OPTION] [INPUT [PREFIX]] DESCRIPTION
Output fixed-size pieces of INPUT to PREFIXaa, PREFIXab, ...; default PREFIX is `x'. With no INPUT, or when INPUT is -, read standard input. Mandatory arguments to long options are mandatory for short options too. -a, --suffix-length=N use suffixes of length N (default 2) -b, --bytes=SIZE put SIZE bytes per output file -C, --line-bytes=SIZE put at most SIZE bytes of lines per output file -l, --lines=NUMBER put NUMBER lines per output file --verbose print a diagnostic to standard error just before each output file is opened --help display this help and exit --version output version information and exit SIZE may have a multiplier suffix: b for 512, k for 1K, m for 1 Meg. AUTHOR
Written by Torbjorn Granlund and Richard M. Stallman. REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>. COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. SEE ALSO
The full documentation for split is maintained as a Texinfo manual. If the info and split programs are properly installed at your site, the command info split should give you access to the complete manual. split (coreutils) 4.5.3 February 2003 SPLIT(1)
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