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N
NaN
conversion to integer,
copying, generating, propograting,
quiet,
NATURALLY ALIGNED data objects,
Negate stylized code form,
NOP, universal (UNOP),
NOT instruction, ORNOT with zero,
NOT stylized code form,
O
Opcode qualifiers
default values,
See also specific qualifiers Opcodes
common architecture,
summary,
unused function codes for,
OpenVMS Alpha PALcode, instruction summary,
Operand expressions,
Operand notation defined,
Operand values,
Operate instruction format
unused function codes with,
opcodes and format summarized,
Operators, instruction format,
Optimization. See Performance optimizations
OR operator,
ORNOT instruction,
Overflow enable (OVFE)
FP_C quadword bit,
Overflow status (OVFS) FP_C quadword bit,
Overlap
with location access constraints,
OVF bit
See also Arithmetic traps, overflow
OVFD bit. See Trap disable bits, overflow disable
P
Pack to bytes instructions,
PALcode
barriers with,
CALL_PAL instruction,
instead of microcode,
required,
required instructions,
special functions function support,
opcodes and format summarized,
reserved, function codes for,
PALcode opcodes in numerical order,
PCC_CNT,
PCC_OFF,
Performance monitoring,
Performance optimizations
branch prediction,
for
Performance tuning
IMPLVER instruction with,
Physical address space described,
PHYSICAL_ADDRESS operator,
Pipelined implementations, using EXCB instruction