Renesas M32R-FPU User Manual

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M32R-FPU Software Manual (Rev.1.01)

2.1.5 EIT-related instructions

The EIT-related instructions carry out the EIT events (Exception, Interrupt and Trap).

Trap initiation and return from EIT are EIT-related instructions.

Trap

Return from EIT

2.1.6 DSP function instructions

The DSP function instructions carry out multiplication of 32 bits x 16 bits and 16 bits x 16

bits or multiply and add operation; there are also instructions to round off data in the

accumulator and carry out transfer of data between the accumulator and a general-

purpose register.

Multiply-accumulate high-order halfwords

Multiply-accumulate low-order halfwords

Multiply-accumulate word and high-order halfword

Multiply-accumulate word and low-order halfword

Multiply high-order halfwords

Multiply low-order halfwords

Multiply word and high-order halfword

Multiply word and low-order halfword

Move high-order word from accumulator

Move low-order word from accumulator

Move middle-order word from accumulator

Move high-order word to accumulator

Move low-order word to accumulator

Round accumulator

Round accumulator halfword

INSTRUCTION SET

2.1 Instruction set overview