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Instruction Set - Hitachi H8/300L Series Manual

Single-chip microcomputer
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5. Instruction Set

The H8/300L CPU supports 55 basic instructions with the following features.
Features
• Concise instruction set geared to high-speed performance
— All instructions are 2 or 4 bytes long.
• High speed
— All frequently executed instructions execute in 2 to 4 states.
• General register architecture
• Powerful bit-manipulation instructions
• Standard H8/300 Series mnemonics
Assembly Language Format
The example below uses the MOV instruction. The letter B (byte) or W (word) designates the
operand size. Note that certain instructions only allow one of these sizes to be used.
MOV
〈EAs〉,
.
B
Size
Operand
Mnemonic
Rd
Destination operand
35
CPU

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