MASM trying to be too smart, takes name to mean [name]

[nixeagle]

Alright, I've poked at this for a good 20 minutes in between watching the ballgame. What I have is something that looks like this:

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.data
    g_test_baseline dd ?
.code
    mov eax, g_test_baseline


The problem here is MASM is taking my instruction to move the address of g_test_baseline to mean this:

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    mov eax, [g_test_baseline]


Which is not what I want ::). How do we tell masm to quit trying to be smart :bg.

[dedndave]

normal masm syntax does not use brackets to access the data at a label
if you want the address...

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        mov     eax,offset g_test_baseline

now, GoAsm works like you were expecting masm to   :P

[nixeagle]

normal masm syntax does not use brackets to access the data at a label
if you want the address...

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        mov     eax,offset g_test_baseline

now, GoAsm works like you were expecting masm to   :P

Yey! As does NASM. Thanks :clap:.

[hutch--]

I think from memory that you can also use,

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lea eax, your_label


[nixeagle]

I think from memory that you can also use,

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lea eax, your_label


:8). It let me do that! Thanks :U

[dedndave]

you certainly want to use LEA for local variables
i think, for globals, MOV ,offset works a little better

[raymond]

When I want the address of a variable, I tend to always use LEA regardless of whether it is local or global. My reasoning is that I never have to double-check if it is one or the other. Using OFFSET would not work for local variables, but LEA works for both.

[dedndave]

the assembler will tell you if offset does not work   :bg

[nixeagle]

the assembler will tell you if offset does not work   :bg

I have went to doing it raymond's way since MASM tries to be too smart about memory addressing. I wish there was a way to tell it to treat []'s as correctly indicating programmer intent.

[hutch--]

nix,

MASM only ever requires [] around registers to indicated that the register is a memory operand [esi] etc .... It will generally ignore [] around named variables so that [myvar] and myvar are the same. It is a notation difference between MASM and other assemblers like NASM that use the [] brackets to indicate that the contents are an address. With MASM you have either named memory operands (local or .data or .data?) or a register enclosed in [] brackets to indicate that it is a memory operand.