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Microsoft KB Archive/34503

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Knowledge Base


DOCERR: PROC Directive Will Not Work with Structure Type

Article ID: 34503

Article Last Modified on 11/19/2003



APPLIES TO

  • Microsoft Macro Assembler 5.1 Standard Edition



This article was previously published under Q34503

SUMMARY

Page 38 of the "Microsoft Macro Assembler 5.1 Update" guide states the following about the type that can be specified for an argument in the syntax of PROC

   ... the type of the argument may be WORD, DWORD, FWORD, QWORD,
   TBYTE or the name of a structure defined by a STRUC structure
   declaration...
                

When attempting to use a structure name, the following error will be generated

error A2003: Unknown type specifier

The error is generated because support of the STRUC type for arguments to PROC has not been added to MASM version 5.1. However, it is a feature of MASM version 6.0 and later.

MORE INFORMATION

The following program illustrates the problem. It will assemble correctly with MASM 6.0 and later.

Sample Code

; Assembly options needed: none

   .model small,c
   .data

t1 STRUC
   w1  dw 0
t1 ENDS

   .code

h1 PROC arg1:t1
;
h1 ENDP

   END
                


Additional query words: 5.10

Keywords: KB34503