How to variable which exists outside the asm place in Keil?

[SphinX]

Keil and Assembly

Hi,

How can i call a variable which exist outside the asm place ?

For example this doesn't work. Count is undiffiend symbol.

void main ()
{
unsgined char count;

.
.
#pragma asm
Mov Count,10
.
.

#pragma endasm

}

SphinX

 

[Asnake]

ke*il and Assembly

variable IS different in ke*il, you can find a pdf file named "c51.pdf" in you install dir. Read it , find your solution!

 

[MyRDS]

Re: Keil and Assembly

Try placing a '_' character in front of your variable

 

[ntfreak]

Re: Keil and Assembly

I have tried many times to come up with a good solution to this problem, most compilers will accept _ before the variable name, but not keil.

The problem is keil will rename a local variable, eg. char temp will become temp?046 and so you do not know the name of the variable to use in the inline asm.
You can look in the src file produced but this variable name can change.

You also have to use the #pragma src directive (at the top of your file), aswell as #pragma asm/endasm.

Hope this sort of helps, has anyone come up with a solution ?
NTFreak