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Altera_Forum
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20 years ago

Disabling GP-addressing in generated source code

Hi Everybody, I would like to share some thougts about the way to control when the compiler uses GP-addressing to address global data structures. This is resulted also from a talk with Mon...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

Hi,

A problem I had with the GP is that I want to put some variables fixed into an OnChip memory block.

So if the gap between the main memory and the on chip memory is too big, the variable can not be accesses with the gp and a linker error occurs.

Can the compiler itself be adjusted to detect for himself if it is possible to use the gp and otherwise use the slower method of accessing?

Stefaan