A2001 disappears with segment override?!?

[Ash]

Hi,

MASM v9.00.30729.01 gives me an error assembling the following:

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.686P

_TEXT32 SEGMENT PARA PUBLIC USE32 'CODE'
Start:
mov dword ptr [11223344h], 55667788h
_TEXT32 ENDS

END Start

D:\Source>ml /omf /c /Fl /Fm /Sa test.asm
Microsoft (R) Macro Assembler Version 9.00.30729.01
Copyright (C) Microsoft Corporation.  All rights reserved.

Assembling: test.asm
test.asm(5) : error A2001:immediate operand not allowed

If I add a segment override

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mov dword ptr ds:[11223344h], 55667788h all is working fine... WTH?!?

Has someone an explanation for this?

TIA,
Ash

[jj2007]

See Agner Fog's remarks here.

[Ash]

See Agner Fog's remarks here.

Thank you.