Print Page - an error in masm6.14

Title: an error in masm6.14
Post by: debugee on April 21, 2011, 06:57:50 AM

;;;;can somebody tell me why?


.386
.model flat,stdcall
option casemap:none

CTEXT MACRO y:VARARG
	LOCAL sym

_DATA	segment
	IFIDNI <y>,<>
		sym db 0
	ELSE
		sym db y,0
	ENDIF
_DATA	ends

	EXITM <OFFSET sym>
ENDM


.code
main	proc	uses ebx esi edx

		mov	eax,CTEXT("this is a test!")
		
		ret
main	endp

start:
	jmp	main

end	start

Code Select


00401000   > /53            PUSH EBX
00401001   . |56            PUSH ESI
00401002   . |52            PUSH EDX
00401003   . |B8 00204000   MOV EAX,bug.00402000                    ;  ASCII "this is a test!"
00401008   . |5A            POP EDX
00401009 > $^\EB F5         JMP SHORT bug.00401000
0040100B   .  C3            RETN
0040100C      00            DB 00
0040100D      00            DB 00
0040100E      00            DB 00

Added code tags.

Title: Re: an error in masm6.14
Post by: jj2007 on April 21, 2011, 07:56:53 AM

Interesting. ML 9.0 does the same, only JWasm pops the "uses".

Title: Re: an error in masm6.14
Post by: qWord on April 21, 2011, 09:15:32 AM

This problem is well knowen to me: masm simply cooks sometimes when using SEGMENT/ENDS inside procs. The only solution is to use .data/.code to switch the segments - as long as not using your own defined code segments it should be no problem.

Title: Re: an error in masm6.14
Post by: debugee on April 21, 2011, 01:42:04 PM

Hi qWord
Thanks for reply,I also find that what you say about,it is really strange.

debugee

Title: Re: an error in masm6.14
Post by: hutch-- on April 21, 2011, 01:45:41 PM

debugee,

Try this.

Code Select


.data

IFIDNI <y>,<>
sym db 0
ELSE
sym db y,0
ENDIF

.code

Title: Re: an error in masm6.14
Post by: debugee on April 21, 2011, 02:46:28 PM

hi hutch--

thanks for your reply :U :U

debugee

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