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2.6 Instruction
Set
The H8S/2000 CPU has 65 types of instructions. The instructions are classified by function as
shown in table 2.1.
Table 2.1
Instruction Classification
Function Instructions
Size
Types
MOV B/W/L
POP
*
1
, PUSH
*
1
W/L
LDM
*
5
, STM
*
5
L
Data transfer
MOVFPE
*
3
, MOVTPE
*
3
B
5
ADD, SUB, CMP, NEG
B/W/L
ADDX, SUBX, DAA, DAS
B
INC, DEC
B/W/L
ADDS, SUBS
L
MULXU, DIVXU, MULXS, DIVXS
B/W
EXTU, EXTS
W/L
Arithmetic
operations
TAS
*
4
B
19
Logic operations
AND, OR, XOR, NOT
B/W/L
4
Shift
SHAL, SHAR, SHLL, SHLR, ROTL, ROTR, ROTXL,
ROTXR
B/W/L 8
Bit manipulation
BSET, BCLR, BNOT, BTST, BLD, BILD, BST, BIST,
BAND, BIAND, BOR, BIOR, BXOR, BIXOR
B 14
Branch B
CC
*
2
, JMP, BSR, JSR, RTS
—
5
System control
TRAPA, RTE, SLEEP, LDC, STC, ANDC, ORC, XORC,
NOP
— 9
Block data transfer EEPMOV
—
1
Total: 65
Notes: B: Byte size; W: Word size; L: Longword size.
1. POP.W Rn and PUSH.W Rn are identical to MOV.W @SP+, Rn and MOV.W Rn, @-
SP. POP.L ERn and PUSH.L ERn are identical to MOV.L @SP+, ERn and MOV.L ERn,
@-SP.
2.
B
CC
is the general name for conditional branch instructions.
3. Cannot be used in this LSI.
4. When using the TAS instruction, use registers ER0, ER1, ER4, and ER5.
5. ER7 is not used as the register that can be saved (STM)/restored (LDM) when using
STM/LDM instruction, because ER7 is the stack pointer.
Содержание H8S/2111B
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