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Index–2
programming implications for, 5–30
TRAPB instruction with
, 4–144
underflow
, 4–78, 4–81
underflow to zero, disabling, 4–80
underflow, disabling
, 4–80
underflow, enabling
, B–6
underflow, status of, B–5
ASCII character set
, C–22
Atomic access
, 5–3
Atomic operations
accessing longword datum
, 5–2
accessing quadword datum
, 5–2
updating shared data structures
, 5–7
using load locked and store conditional, 5–7
Atomic sequences
, A–16
B
BEFORE, defined for memory access, 5–12
BEQ instruction
, 4–20
BGE instruction
, 4–20
BGT instruction
, 4–20
BIC instruction
, 4–42
Big-endian addressing
, 2–13
byte operation examples
, 4–54
byte swapping for
, A–11
extract byte with, 4–51
insert byte with
, 4–55
load F_floating with
, 4–91
load long/quad locked with, 4–9
load S_floating with
, 4–93
mask byte with
, 4–57
store byte/word with, 4–15
store F_floating with
, 4–95
store long/quad conditional with
, 4–12
store long/quad with, 4–15
store S_floating with
, 4–97
Big-endian data types, X_floating
, 2–10
BIS instruction
, 4–42
BLBC instruction
, 4–20
BLBS instruction
, 4–20
BLE instruction
, 4–20
BLT instruction
, 4–20
BNE instruction
, 4–20
Boolean instructions
, 4–41
logical functions
, 4–42
Boolean stylized code forms
, A–13
BPT (PALcode) instruction
required recognition of
, 6–4
bpt (PALcode) instruction
required recognition of
, 6–4
BR instruction
, 4–21
Branch instructions
, 4–18
backward conditional
, 4–20
conditional branch, 4–20
floating-point, summarized
, 4–99
format of
, 3–12
forward conditional, 4–20
opcodes and format summarized
, C–1
unconditional branch
, 4–21
See also Control instructions
Branch prediction model
, 4–18
Branch prediction stack,with BSR instruction
, 4–21
BSR instruction
, 4–21
BUGCHK (PALcode) instruction
required recognition of
, 6–4
bugchk (PALcode) instruction
required recognition of
, 6–4
Byte data type
, 2–1
atomic access of
, 5–3
Byte manipulation
, 1–2
Byte manipulation instructions
, 4–47
Byte swapping
, A–11
BYTE_ZAP(x,y) operator
, 3–7
C
/C opcode qualifier
IEEE floating-point
, 4–67
VAX floating-point
, 4–67
C opcode qualifier
, 4–67
Cache coherency
barrier instructions for
, 5–25
defined
, 5–2
in multiprocessor environment, 5–6
Caches
design considerations
, A–1
I-stream considerations, A–4
MB and IMB instructions with
, 5–25
requirements for
, 5–5
translation buffer conflicts, A–6
with powerfail/recovery
, 5–5
CALL_PAL (call privileged architecture library)
instruction
, 4–135
CASE operator
, 3–8
Causal loops
, 5–15
CFLUSH (PALcode) instruction
ECB compared with
, 4–138