Extension Instruction Specification; Arithmetic Extension Function - Panasonic MN103S User Manual

Chapter 16
Appendix

16.4 Extension Instruction Specification

16.4.1

Arithmetic extension function

Arithmetic Extension Function
The block diagram is shown below in which extension arithmetic units are connected to this series CPU core.
With the MN103S00 Series, multipliers capable of 32 × 32 multiply operation, multiply and accumulate
arithmetic units capable of 32 × 32 + 64 multiply and accumulate operation, priority encoders and saturation
compensation arithmetic units are incorporated as standard. Extension instructions using such extension
arithmetic units are described in this section.
Instruction data Instruction address
XVI - 38 Extension Instruction Specification
Instruction
decoding section
Instruction
queue
Program
counter Register
section
Operand data
Figure:16.4.1 Block Diagram of the Extension Arithmetic Units
Microcontroller
core instruction
decoder
Barrel
shifter
LU AU
Operand address
Arithmetic Arithmetic
extension extension
section A section B
Extension
Extension
instruction instruction
decoder B
decoder A
Extension Extension
arithmetic arithmetic
unit A unit B
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