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9–9
STQP Store quadword physical
The quadword contents of R17 are written to the memory location whose phys-
ical address is in R16. If the operand address in R16 is not quadword-aligned,
the result is UNPREDICTABLE.
SWPCTX Swap privileged context
SWPCTX returns ownership of the data structure that contains the current
hardware privileged context (the HWPCB) to the operating system and passes
ownership of the new HWPCB to the processor.
SWPPAL Swap PALcode image
SWPPAL causes the current PALcode to be replaced by the specified new
PALcode image. Intended for use by operating systems only during bootstraps
and by consoles during transitions to console I/O mode.
WTINT Wait for interrupt
WTINT requests that, if possible, the PALcode wait for the first of either of the
following conditions before returning: any interrupt other than a clock tick; or,
the first clock tick after a specified number of clock ticks has been skipped.
Table 9–2 : Privileged OpenVMS Alpha PALcode Instructions Summary (Continued)
Mnemonic Operation and Description