Microsoft KB Archive/24958

= Hexadecimal Numbers Must Begin With a Digit Between 0 and 9 =

Article ID: 24958

Article Last Modified on 10/20/2003

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APPLIES TO


 * Microsoft Macro Assembler 5.0
 * Microsoft Macro Assembler 5.1 Standard Edition
 * Microsoft Macro Assembler 6.0 Standard Edition
 * Microsoft Macro Assembler 6.0a
 * Microsoft Macro Assembler 6.0b

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This article was previously published under Q24958



SUMMARY
With the Microsoft Macro Assembler, a hexadecimal number must begin with a digit between zero and nine. This is so that the assembler can distinguish between something that should be a number and something that should be a label.



MORE INFORMATION
Assembling the following code will result in the following errors, since the assembler will assume that ABh is a label

MASM 5.0, 5.1: error A2009: Symbol not defined: ABh

MASM 6.0: error A2006: undefined symbol: ABh

Sample Code
;Assemble options needed: none

.model small .code

mov ax, ABh

end

Additional query words: kbinf 5.00 5.10 6.00 6.00a 6.00b

Keywords: KB24958

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