ID Number: Q79208
6.00 6.00a | 6.00 6.00a
MS-DOS | OS/2
buglist6.00 buglist6.00a
Summary:
PROBLEM ID: MSM9112006
SYMPTOMS
When a program that contains a local structure but no global
structures of the same type is assembled with the Microsoft Macro
Assembler (MASM) versions 6.0 and 6.0a, and that variable is
watched with the Microsoft CodeView (CV) debugger, CodeView will
report that the variable has no type.
CAUSE
The CodeView information generated by MASM 6.0 for that local
structure is not correct.
RESOLUTION
Declare a dummy global structure of the same type.
STATUS
Microsoft has confirmed this to be a problem in MASM 6.0 and 6.0a.
We are researching this problem and will post new information here
as it becomes available.
More Information:
The following sample demonstrates the problem. Bring the .EXE into
CodeView and begin stepping through. After stepping into procedure
"func", the local window has:
<no type> result
To work around the problem, uncomment the global variable "global" and
reassemble. After stepping into procedure "func", the local window
has:
+struct sample result
Sample Code
-----------
; Assemble options needed: /Zi
.model small,c
sample struc
x1 dw 1
x2 dw 2
sample ends
.stack
.data
;global sample <>
.code
func proc near
local result:sample
mov result.x1, 0
mov result.x2, 0
ret
func endp
start:
.startup
call func
.exit
end
Additional reference words: 6.00 6.00a