2.5
Instruction Set
The H8/300L Series can use a total of 55 instructions, which are grouped by function in table 2-3.
Table 2-3 Instruction Set
Function
Instructions
Number
Data transfer
MOV, PUSH*1, POP*1
1
Arithmetic operations
ADD, SUB, ADDX, SUBX, INC, DEC, ADDS, SUBS,
DAA, DAS, MULXU, DIVXU, CMP, NEG
14
Logic operations
Shift
AND, OR, XOR, NOT
4
8
SHAL, SHAR, SHLL, SHLR, ROTL, ROTR, ROTXL,
ROTXR
Bit manipulation
BSET, BCLR, BNOT, BTST, BAND, BIAND, BOR, BIOR, 14
BXOR, BIXOR, BLD, BILD, BST, BIST
Branch
Bcc*2, JMP, BSR, JSR, RTS
RTE, SLEEP, LDC, STC, ANDC, ORC, XORC, NOP
EEPMOV
5
System control
Block data transfer
8
1
Total: 55
Notes: 1. PUSH Rn is equivalent to MOV.W Rn, @–SP.
POP Rn is equivalent to MOV.W @SP+, Rn. The same applies to the machine
language.
2. Bcc is a conditional branch instruction in which cc represents a condition code.
The following sections give a concise summary of the instructions in each category, and indicate
the bit patterns of their object code. The notation used is defined next.
28
ETC [ ETC ]
