Load/Store Instructions; Instruction Set - Renesas M32R-FPU Software Manual

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2.1 Instruction set overview
The M32R-FPU has a total of 100 instructions. The M32R-FPU has a RISC architecture.
Memory is accessed by using the load/store instructions and other operations are
executed by using register-to-register operation instructions.
M32R CPU supports compound instructions such as " load & address update" and "store
& address update" which are useful for high-speed data transfer.

2.1.1 Load/store instructions

The load/store instructions carry out data transfers between a register and a memory.
LD
LDB
LDUB
LDH
LDUH
LOCK
ST
STB
STH
UNLOCK
Load
Load byte
Load unsigned byte
Load halfword
Load unsigned halfword
Load locked
Store
Store byte
Store halfword
Store unlocked
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INSTRUCTION SET

2.1 Instruction set overview
M32R-FPU Software Manual (Rev.1.01)