Description
OSCtxSw() is called from the macro OS_TASK_SW(), which in turn is called from OSSched() to perform a task-level context switch. Interrupts are disabled when OSCtxSw() is called.
Prior to calling OSCtxSw(), OSTCBCurPtr to point at the OS_TCB of the task that is being switched out, and OSSched() sets OSTCBHighRdyPtr to point at the OS_TCB of the task being switched in.
Files
os.h/os_cpu_a.asm
Prototype
Arguments
None
Returned Values
None
Required Configuration
None
Callers
OSSched().
Notes/Warnings
None
Example Usage
The pseudocode for OSCtxSw() follows: