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Instruction Summary C–9
The instruction format is listed under the instruction symbol. The symbols in Table C–6 are
explained in Table C–7.
Table C–6: Opcode Summary
00 08 10 18 20 28 30 38
0/8 PAL*
(pal)
LDA
(mem)
INTA*
(op)
MISC*
(mem)
LDF
(mem)
LDL
(mem)
BR
(br)
BLBC
(br)
1/9 Res LDAH
(mem)
INTL*
(op)
\
PAL
\
LDG
(mem)
LDQ
(mem)
FBEQ
(br)
BEQ
(br)
2/A Res LDBU
(mem)
INTS*
(op)
JSR*
(mem)
LDS
(mem)
LDL_L
(mem)
FBLT
(br)
BLT
(br)
3/B Res LDQ_U
(mem)
INTM*
(op)
\
PAL
\
LDT
(mem)
LDQ_L
(mem)
FBLE
(br)
BLE
(br)
4/C Res LDWU
(mem)
ITFP* FPTI* STF
(mem)
STL
(mem)
BSR
(br)
BLBS
(br)
5/D Res STW
(mem)
FLTV*
(op)
\
PAL
\
STG
(mem)
STQ
(mem)
FBNE
(br)
BNE
(br)
6/E Res STB
(mem)
FLTI*
(op)
\
PAL
\
STS
(mem)
STL_C
(mem)
FBGE
(br)
BGE
(br)
7/F Res STQ_U
(mem)
FLTL*
(op)
\
PAL
\
STT
(mem)
STQ_C
(mem)
FBGT
(br)
BGT
(br)
Table C–7: Key to Opcode Summary
Symbol Meaning
FLTI* IEEE floating-point instruction opcodes
FLTL* Floating-point Operate instruction opcodes
FLTV* VAX floating-point instruction opcodes
FPTI* Floating-point to integer register move opcodes
INTA* Integer arithmetic instruction opcodes
INTL* Integer logical instruction opcodes
INTM* Integer multiply instruction opcodes
INTS* Integer shift instruction opcodes
ITFP* Integer to floating-point register move opcodes
JSR* Jump instruction opcodes
MISC* Miscellaneous instruction opcodes
PAL* PALcode instruction (CALL_PAL) opcodes
\
PAL
\
Reserved for PALcode
Res Reserved for Compaq