Compaq ECQD2KCTE Laptop User Manual


 
Instruction Descriptions 4–135
4.11.2 Call Privileged Architecture Library
Format:
Operation:
{Stall instruction issuing until all
prior instructions are guaranteed to
complete without incurring exceptions.}
{Trap to PALcode.}
Exceptions:
Instruction mnemonics:
Qualifiers:
Description:
The CALL_PAL instruction is not issued until all previous instructions are guaranteed to com-
plete without exceptions. If an exception occurs, the continuation PC in the exception stack
frame points to the CALL_PAL instruction. The CALL_PAL instruction causes a trap to
PALcode.
CALL_PAL fnc.ir
!PAL format
None
CALL_PAL Call Privileged Architecture Library
None