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Rev. 1.0, 07/01, page 17 of 372
2.4 Instruction Set
2.4.1 Table of Instructions Classified by Function
The H8/300H CPU has 62 instructions. Tables 2-2 to 2-9 summarize the instructions in each
functional category. The notation used in tables 2-2 to 2-9 is defined below.
Table 2-1 Operation Notation
Symbol Description
Rd General register (destination)
*
Rs General register (source)
*
Rn General register
*
ERn General register (32-bit register or address register)
(EAd) Destination operand
(EAs) Source operand
CCR Condition-code register
N N (negative) flag in CCR
Z Z (zero) flag in CCR
V V (overflow) flag in CCR
C C (carry) flag in CCR
PC Program counter
SP Stack pointer
#IMM Immediate data
disp Displacement
+ Addition
– Subtraction
× Multiplication
÷ Division
∧ Logical AND
∨ Logical OR
⊕ Logical XOR
→ Move
¬ NOT (logical complement)
:3/:8/:16/:24 3-, 8-, 16-, or 24-bit length
Note:
*
General registers include 8-bit registers (R0H to R7H, R0L to R7L), 16-bit registers (R0 to
R7, E0 to E7), and 32-bit registers/address register (ER0 to ER7).