Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

Atomic compare_and_swap function

Hi all, According the header file (D:\altera5\kits\nios2_50\bin\eclipse\plugins\com.microtronix.nios2linux.uClibc_1.4.0\include\bits\atomicity.h), the implemented function is only STUB (not r...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

Look in include/asm (ie, asm-nios2nommu) /system.h

Use,

local_irq_save(x) // to disable global irq

then,

local_irq_restore(x) // to enable/restore global irq