Article: Q64535
Product(s): Microsoft Macro Assembler
Version(s): MS-DOS:5.1,5.1a
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 5.1, 5.1a
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SYMPTOMS
========
A procedure that uses the USES keyword cannot return by using IRET. The USES
statement pushes the specified registers on the stack upon entry and pops them
before exiting a procedure. If the USES keyword is used with a procedure that
ends with an IRET instruction, the pushes will be generated for the procedure,
but the pops will not.
STATUS
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Microsoft has confirmed this to be a problem in MASM versions 5.1 and 5.1a. This
problem has been corrected in MASM version 6.0.
MORE INFORMATION
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The following code demonstrates the problem. The di, si, and bp registers will
be pushed onto the stack, but not popped.
Source Code:
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; Compile options needed: none
.model large, c
.code
first PROC far uses di si bp
MOV si,3
MOV di,4
IRET
first ENDP
END first
Additional query words: 5.10 5.10a buglist5.10 buglist5.10a fixlist6.00
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Keywords :
Technology : kbMASMsearch kbAudDeveloper kbMASM510 kbMASM510a
Version : MS-DOS:5.1,5.1a
Solution Type : kbfix
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