Article: Q102432
Product(s): Microsoft Macro Assembler
Version(s): 6.0,6.0a,6.0b,6.1,6.1a
Operating System(s):
Keyword(s):
Last Modified: 06-MAY-2001
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The information in this article applies to:
- Microsoft Macro Assembler (MASM), versions 6.0, 6.0a, 6.0b, 6.1, 6.1a
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SYMPTOMS
========
When Microsoft Macro Assembler (MASM) processes source code for an application,
it may generate the incorrect form for a RET instruction in a PROC.
Specifically, the assembler generates a RET 4 instruction instead of a RET
instruction when the source code contains a RET instruction.
CAUSE
=====
The source code uses the OPTION EPILOGUE statement multiple times to set the
EPILOGUE macro to NONE.
RESOLUTION
==========
Modify the source code to specify RET 0. The assembler translates this
expression into a RET instruction.
STATUS
======
Microsoft has confirmed this to be a problem in MASM versions 6.0, 6.0a, 6.0b,
6.1, and 6.1a. This problem was corrected in MASM for MS-DOS version 6.11.
MORE INFORMATION
================
The following code example demonstrates this problem:
Sample Code
-----------
; Assembler options needed: /c /Fl /Sa
.MODEL small, Pascal
_text SEGMENT
OPTION EPILOGUE:NONE
p0 PROC parm1:DWORD
ret ; This correctly generates a RET
p0 ENDP
OPTION EPILOGUE:EpilogueDef
p1 PROC parm1:DWORD
ret ; This correctly generates a RET 4
p1 ENDP
OPTION EPILOGUE:NONE
p2 PROC parm1:DWORD
ret ; This incorrectly generates a RET 4
p2 ENDP
_text ENDS
END
Additional query words: 6.00 6.00a 6.00b 6.10 6.10a buglist6.00a buglist6.00b buglist6.10 buglist6.10a fixlist6.11
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Keywords :
Technology : kbMASMsearch kbAudDeveloper kbMASM600 kbMASM610 kbMASM610a kbMASM600a kbMASM600b
Version : :6.0,6.0a,6.0b,6.1,6.1a
Solution Type : kbfix
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