Microsoft KB Archive/76163

= Line Numbers in .MAP File Do Not Relate to Listing File =

Article ID: 76163

Article Last Modified on 11/17/2003

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APPLIES TO


 * Microsoft Macro Assembler 5.0

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This article was previously published under Q76163



SUMMARY
When using the Microsoft Macro Assembler (MASM) version 5.0, 5.1, or 5.1a and generating a cross-reference file, the listing file generated will contain line numbers. These line numbers do not relate to the line numbers listed in the .MAP file when specifying the /LINE linker option.

The line number information generated in the .MAP file with the /LINE option relates to the source file and not to the listing file. Therefore, relying on the .MAP file to give information relating to assembler-generated listing file is not valid because listing files contain added information.



MORE INFORMATION
The sample code below contains two NOP statements to show executable code lines. The .MAP file contains line number information corresponding to the source file's executable lines. This is the intended use of the line number information generated by the .MAP file. It is not intended for these line numbers to relate to the lines of the listing file. TEST.ASM:


 * Assemble options needed: /Zd /c /l
 * Link options needed: /L

.MODEL SMALL .STACK 100H .CODE start: nop nop END start

TEST.MAP:

Start Stop   Length Name                   Class 00000H 00001H 00002H _TEXT                 CODE 00002H 00002H 00000H _DATA                 DATA 00010H 0010FH 00100H STACK                 STACK

Origin  Group 0000:0  DGROUP

Address        Publics by Name

Address        Publics by Value

Line numbers for TEST.OBJ(test.asm) segment _TEXT

5 0000:0000    6 0000:0001

Program entry point at 0000:0000

Additional query words: kbinf 5.00 5.10 5.10a

Keywords: KB76163

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