Chapter 2
CPU Basics
2.5 Instructions
2.5.1
Instruction Format
The following 11 types of instruction formats are available.
Format S0
Format S1
Format S2
Format S4
Format S6
Format D0
Format D1
Format D2
Format D3
Format D4
Format D5
II - 10
Instructions
8 bits
OP
OP
imm8 / d8
OP
imm16 / d16 /abs16
OP
imm32 / d32 /abs32
OP
imm48
OP
OP
OP
OP
OP
OP
OP
OP
OP
OP
OP
OP
Figure:2.5.1 Types of Instruction Formats
imm8 / d8
imm16 / d16 /abs16
imm24
imm32 / d32 /abs32
imm40