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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
Data transfer
Arithmetic operations
Logic operations
Shift
Bit manipulation
Branch
System control
Block data transfer
Notes: 1. PUSH Rn is equivalent to MOV.W Rn, @–SP.
POP Rn is equivalent to MOV.W @SP+, Rn. The machine language is also the same.
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.
The functions of the instructions are shown in tables 2.4 to 2.11. The meaning of the operation
symbols used in the tables is as follows.
26
Instructions
*1
*1
MOV, PUSH
, POP
ADD, SUB, ADDX, SUBX, INC, DEC, ADDS,
SUBS, DAA, DAS, MULXU, DIVXU, CMP, NEG
AND, OR, XOR, NOT
SHAL, SHAR, SHLL, SHLR, ROTL, ROTR,
ROTXL, ROTXR
BSET, BCLR, BNOT, BTST, BAND, BIAND, BOR,
BIOR, BXOR, BIXOR, BLD, BILD, BST, BIST
*2
Bcc
, JMP, BSR, JSR, RTS
RTE, SLEEP, LDC, STC, ANDC, ORC, XORC, NOP
EEPMOV
Number
1
14
4
8
14
5
8
1
Total: 55
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