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Altera_Forum's avatar
Altera_Forum
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19 years ago

variable reference in assembly

Hello! I would like to know how to get the location of an external variable in asm code so that I have access to reading or writing to that variable. For eg. extern int x; asm ( ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

oops! I should have combed through the instruction set more closely. I suppose the instruction "movia" comes in handy as follows

extern int x;

asm (

" movia r2, x \n\t"

"..."

)