Subj : Short executables
To   : Eddy Thilleman
From : David Noon
Date : Wed Jan 31 2001 10:54 am

Hi Eddy,

Replying to a message of Eddy Thilleman to David Noon:

DN>> Try this [I first posted this code in this echo back in 1998]:

DN>> HWORLD.ASM  OS/2 32-bit command line program.

ET> Hmm, maybe I'll try to assemble this, does TASM do the job?

Try this one, if your TASM does only 16-bit code. Just remember to link it with
OS/2's LINK.EXE and use OS2.LIB from the OS/2 Developer's Toolkit 1.3 [although
OS2386.LIB in the later DTK's also contains the 16-bit imports, I think].

========================== HWORLD16.ASM ============================
; OS/2 16-bit command line program. Sample of assembler code.
; Copyright: Public domain
          .286
          .MODEL SMALL,PASCAL

          .CONST
MsgText    DB     "Hello, Eddy!"
MsgLen     EQU    $-MsgText

          EXTERN VioWrtTTY: FAR

          .CODE
HelloWorld PROC   NEAR
          PUSH   BP
          MOV    BP,SP

; Call VioWrtTTY to display our message
          PUSH   SEG MsgText
          PUSH   OFFSET MsgText
          PUSH   MsgLen
          PUSH   0
          CALL   VioWrtTTY

; Clean stack area and return
          MOV    SP,BP
          POP    BP
          RET
HelloWorld ENDP

          .STACK

          END    HelloWorld
====================================================================

It works out a couple of bytes smaller than the 32-bit program I posted before
[44 bytes, compared to 53 bytes]. This is like counting archangels on the head
of a pin.

Regards

Dave
<Team PL/I>

--- FleetStreet 1.25.1
* Origin: My other computer is an IBM S/390 (2:257/609.5)

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