Q32773: LOCAL Directive Incorrect for Large Types

Article: Q32773
Product(s): See article
Version(s): 5.10   | 5.10
Operating System(s): MS-DOS | OS/2
Keyword(s): ENDUSER | buglist5.10 | fixlist5.10A | mspl13_masm
Last Modified: 10-JUL-1990

The LOCAL directive allocates two bytes too few when applied to
data items with type larger than word.
   Microsoft has confirmed this to be a problem in Version 5.10.
The 5.10A MASM update is available as an applications note, from
Microsoft Product Support Services.

   The following source example demonstrates the problem:

.model large
.code
foo    proc
       local l1:byte
       local l2:word
       local l4:dword
       local l6:fword
       local l8:qword
       local l10:tword
       ret
foo    endp
end

   The listing file below illustrates the incorrect offsets generated:

L1 ........................ TEXT    BYTE PTR [BP]-2
L10........................ TEXT    TBYTE PTR [BP]-24
L2......................... TEXT    WORD PTR [BP]-4
L4......................... TEXT    DWORD PTR [BP]-6
L6......................... TEXT    FWORD PTR [BP]-10
L8......................... TEXT    QWORD PTR [BP]-16

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