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Instructions Executing in the .D Functional Unit
.D Unit Instructions and Opcode MapsC-2 SPRU733
C.1 Instructions Executing in the .D Functional Unit
Table C−1 lists the instructions that execute in the .D functional unit.
Table C−1. Instructions Executing in the .D Functional Unit
Instruction Instruction
ADD LDW memory
ADDAB LDW memory (15-bit offset)
‡
ADDAD MV
ADDAH STB memory
ADDAW STB memory (15-bit offset)
‡
LDB memory STH memory
LDB memory (15-bit offset)
‡
STH memory (15-bit offset)
‡
LDBU memory STW memory
LDBU memory (15-bit offset)
‡
STW memory (15-bit offset)
‡
LDDW SUB
LDH memory SUBAB
LDH memory (15-bit offset)
‡
SUBAH
LDHU memory SUBAW
LDHU memory (15-bit offset)
‡
ZERO
†
S2 only
‡
D2 only