Appendix C Instruction Overview - Fujitsu F2MC-8FX Hardware Manual

APPENDIX C Instruction Overview

This section explains the instructions used in F
Instruction Overview of F
2
In F MC-8FX, there are 140 kinds of one byte machine instructions (as the map, 256 bytes), and the
instruction code is composed of the instruction and the operand following it.
Figure C-1 shows the correspondence of the instruction code and the instruction map.
Figure C-1 Instruction Code and Instruction MapInstruction Code and Instruction Map
• The instruction is classified into following four types; forwarding system, operation system, branch
system and others.
• There are various methods of addressing, and ten kinds of addressing can be selected by the selection
and the operand specification of the instruction.
• This provides with the bit operation instruction, and can operate the read modification write.
• There is an instruction that directs special operation.
2
MC-8FX
*1 byte
Machine
Instruction code
instruction
Higher 4 bits
APPENDIX C Instruction Overview
2
MC-8FX.
0 to 2 bytes are given
depending on instructions.
Operand Operand
[Instruction map]
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