Compaq ECQD2KCTE manual OpenVMS Alpha PALcode Instruction Summary

C.7 OpenVMS Alpha PALcode Instruction Summary

Table C–9: OpenVMS Alpha Unprivileged PALcode Instructions

Mnemonic	Opcode	Description
AMOVRM	00.00A1	Atomic move from register to memory
AMOVRR	00.00A0	Atomic move from register to register
BPT	00.0080	Breakpoint
BUGCHK	00.0081	Bugcheck
CHMK	00.0083	Change mode to kernel
CHME	00.0082	Change mode to executive
CHMS	00.0084	Change mode to supervisor
CHMU	00.0085	Change mode to user
CLRFEN	00.00AE	Clear floating-point enable
GENTRAP	00.00AA	Generate software trap
IMB	00.0086	I-stream memory barrier
INSQHIL	00.0087	Insert into longword queue at head interlocked
INSQHILR	00.00A2	Insert into longword queue at head interlocked resident
INSQHIQ	00.0089	Insert into quadword queue at head interlocked
INSQHIQR	00.00A4	Insert into quadword queue at head interlocked resident
INSQTIL	00.0088	Insert into longword queue at tail interlocked
INSQTILR	00.00A3	Insert into longword queue at tail interlocked resident
INSQTIQ	00.008A	Insert into quadword queue at tail interlocked
INSQTIQR	00.00A5	Insert into quadword queue at tail interlockedresident
INSQUEL	00.008B	Insert entry into longword queue
INSQUEL/D	00.008D	Insert entry into longword queue deferred
INSQUEQ	00.008C	Insert entry into quadword queue
INSQUEQ/D	00.008E	Insert entry into quadword queue deferred
PROBER	00.008F	Probe for read access
PROBEW	00.0090	Probe for write access
RD_PS	00.0091	Move processor status
READ_UNQ	00.009E	Read unique context
REI	00.0092	Return from exception or interrupt
REMQHIL	00.0093	Remove from longword queue at head interlocked
REMQHILR	00.00A6	Remove from longword queue at head interlocked resident
REMQHIQ	00.0095	Remove from quadword queue at head interlocked
REMQHIQR	00.00A8	Remove from quadword queue at head interlocked resident
REMQTIL	00.0094	Remove from longword queue at tail interlocked
REMQTILR	00.00A7	Remove from longword queue at tail interlocked resident
REMQTIQ	00.0096	Remove from quadword queue at tail interlocked
REMQTIQR	00.00A9	Remove from quadword queue at tail interlocked resident
REMQUEL	00.0097	Remove entry from longword queue
REMQUEL/D	00.0099	Remove entry from longword queue deferred
REMQUEQ	00.0098	Remove entry from quadword queue
REMQUEQ/D	00.009A	Remove entry from quadword queue deferred
RSCC	00.009D	Read system cycle counter
SWASTEN	00.009B	Swap AST enable for current mode
WRITE_UNQ	00.009F	Write unique context
WR_PS_SW	00.009C	Write processor status software field

C–14Alpha Architecture Handbook