Does anyone know how to "push flags" on the HCS08 series
microcontrollers?
I have a section of code that I need to make non-interruptable. But I
can't simply do this:
DisableInterrupts
<non-interruptable code here>
EnableInterrupts
.... because I don't know whether or not interrupts were disabled in the
first place, and if they were disabled, I don't want to enable them. I
want to leave things the way I found them.
In the Intel world, I'd just do this:
PUSHF (push flags)
DisableInterrupts
<non-interruptable code here>
POPF (pop flags, restoring whatever state existed before I disabled
interrupts)
I read all the docs I could find, but never saw this issue addressed.
It says that the "CCR" register contains the global interrupt flag, but
there's no assembly instruction to read it or push it unto the stack.
Does anyone have a solution for this?
