🚀 go-pugleaf

I'd like to thank everyone for the input - it works.  And now for some 
observations.  Use ml with the /c flag unless who have renamed link386 to link
and its first in your path.  Link produces "Relative frame fix-up" errors.
I assume that link is a 16-bit linker and therefore complains about the flat
model.  Use the 32-bit calls (Dos32Write and Dos32Exit).  When using 32-bit
calls, push the arguments on the stack in the opposite order as with 16-bit
OS/2.  Make sure that there is a DGROUP or link386 complains.

One pain is that I have to go thru basedef.h and bsedos.h to find the correct
parameters for the system calls.  I guess I'll have to eventually go thru these
headers and convert them all to PROTO statements.  Next I'll start using the 
PROTO/INVOKE combination to clean things up.

Just in case anyone is interested, the final version of the hello program with
full segment definitions is included below.  Thanks again for all your help.

						Jake

-------------------- hello.asm -------------------------

		title	hello.asm

		.386
		.387

INCLUDE 	filecomp.inc

cr		equ	0dh
lf		equ	0ah

stdin		equ	0
stdout		equ	1
stderr		equ	2

DGROUP		group	 _DATA,CONST

_DATA		segment dword public flat 'DATA'

wlen		dword	?

_DATA		ends

CONST		segment dword public flat 'CONST'

testmess	byte	cr,lf,'Hello World.',cr,lf
testmess_len	equ	$-testmess

CONST		ends

_TEXT		segment dword public flat 'CODE'

		assume	ds:FLAT,ss:FLAT,es:FLAT

main		proc	near

		push	offset wlen
		push	testmess_len
		push	offset testmess
		push	stdout
		call	Dos32Write

		or	eax,eax
		jnz	error

		push	eax
		pushd	1
		call	Dos32Exit

error:		push	eax
		pushd	1
		call	Dos32Exit

main		endp

_TEXT		ends

		end	main


-------------------- hello.inc -------------------------

externdef	Dos32Write:near
externdef	Dos32Exit:near


-------------------- hello.def -------------------------

NAME Hello WINDOWCOMPAT
DESCRIPTION "OS/2 2.0 Test Program"
PROTMODE
STACKSIZE 4096

-------------------- assemble commands  ----------------

ml /c /Zi /W3 hello.asm
link386 /NOE /NOD /ALIGN:16 /M /DE 
hello,,,d:\os2\doscalls,hello;