dbgshow.asm

开放源码的编译器open watcom 1.6.0版的源代码

;
; Copyright (C) 1996-2002 Supernar Systems, Ltd. All rights reserved.
;
; Redistribution  and  use  in source and  binary  forms, with or without
; modification,  are permitted provided that the following conditions are
; met:
;
; 1.  Redistributions  of  source code  must  retain  the above copyright
; notice, this list of conditions and the following disclaimer.
;
; 2.  Redistributions  in binary form  must reproduce the above copyright
; notice,  this  list of conditions and  the  following disclaimer in the
; documentation and/or other materials provided with the distribution.
;
; 3. The end-user documentation included with the redistribution, if any,
; must include the following acknowledgment:
;
; "This product uses DOS/32 Advanced DOS Extender technology."
;
; Alternately,  this acknowledgment may appear in the software itself, if
; and wherever such third-party acknowledgments normally appear.
;
; 4.  Products derived from this software  may not be called "DOS/32A" or
; "DOS/32 Advanced".
;
; THIS  SOFTWARE AND DOCUMENTATION IS PROVIDED  "AS IS" AND ANY EXPRESSED
; OR  IMPLIED  WARRANTIES,  INCLUDING, BUT  NOT  LIMITED  TO, THE IMPLIED
; WARRANTIES  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
; DISCLAIMED.  IN  NO  EVENT SHALL THE  AUTHORS  OR  COPYRIGHT HOLDERS BE
; LIABLE  FOR  ANY DIRECT, INDIRECT,  INCIDENTAL,  SPECIAL, EXEMPLARY, OR
; CONSEQUENTIAL  DAMAGES  (INCLUDING, BUT NOT  LIMITED TO, PROCUREMENT OF
; SUBSTITUTE  GOODS  OR  SERVICES;  LOSS OF  USE,  DATA,  OR  PROFITS; OR
; BUSINESS  INTERRUPTION) HOWEVER CAUSED AND  ON ANY THEORY OF LIABILITY,
; WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
; OTHERWISE)  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
; ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
;
;

;*****************************************************************************
;
; DBGSHOW.ASM
; This program will show how to use DOS/32 Advanced built-in Debugger.
; NOTE: this program will not work correctly under external DPMI.
;
;*****************************************************************************

	.386p
	.MODEL flat

DGROUP	group _DATA,STACK		; Tasm will complain about STACK here

.CODE
;=============================================================================
start:
	int	03h			; enter Debug mode

	mov	eax,11111111h
	mov	ebx,22222222h
	mov	ecx,33333333h
	mov	edx,44444444h
	mov	esi,55555555h
	mov	edi,66666666h

	push	eax
	push	ebx
	push	ecx
	push	edx
	pop	eax
	pop	ebx
	pop	ecx
	pop	edx

	mov	ax,4C00h		; return to DOS with error code 00h
	int	21h


.DATA
;=============================================================================


.STACK
;=============================================================================
	db	1000h dup(?)


end	start