On Sat, May 01, 2004 at 01:15:47PM +0800, BAHCL wrote:
> Hi,
>
> DEBUG displays a message 'Unexpected single-step interrupt'
> as soon as it finish the statement below:
>
> MOV AH,4C
> INT 21
>
> Registers DS,ES,CS,SS,AX,SP... contains strange values.
>
> The program I debug simply opens a file, moves the file pointer and
> closes the file.
>
> I cross check with
> DEBUG c:\tools\LIST.COM c:\tmp\*.*
>
> the 'Unexpected...' message appears as LIST finishes.
>
> This result is found in Linux + DOSEMU 1.2.0
I don't have the program "list.com" on my freeDOS setup. Can you please
send me a simple program that exhibits the problem? The problem doesn't
show up for the simple program:
; nasm test.asm -O 2 -o test.com
org 100h
mov ah,9
mov dx,hithere
int 21h
ret
hithere db 'Hi there',13,10,'$'
--
Paul Vojta, [EMAIL PROTECTED]
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