参数资料
型号: MC68HC08AS20CFN
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, MICROCONTROLLER, PQCC52
封装: PLASTIC, LCC-52
文件页数: 21/96页
文件大小: 3243K
代理商: MC68HC08AS20CFN
3
MOTOROLA
3-6
MC68HC05E0
CPU CORE AND INSTRUCTION SET
Table 3-3 Branch instructions
Relative addressing mode
Function
Mnemonic
Opcode
# Bytes # Cycles
Branch always
BRA
20
2
3
Branch never
BRN
21
2
3
Branch if higher
BHI
22
2
3
Branch if lower or same
BLS
23
2
3
Branch if carry clear
BCC
24
2
3
(Branch if higher or same)
(BHS)
24
2
3
Branch if carry set
BCS
25
2
3
(Branch if lower)
(BLO)
25
2
3
Branch if not equal
BNE
26
2
3
Branch if equal
BEQ
27
2
3
Branch if half carry clear
BHCC
28
2
3
Branch if half carry set
BHCS
29
2
3
Branch if plus
BPL
2A
2
3
Branch if minus
BMI
2B
2
3
Branch if interrupt mask bit is clear
BMC
2C
2
3
Branch if interrupt mask bit is set
BMS
2D
2
3
Branch if interrupt line is low
BIL
2E
2
3
Branch if interrupt line is high
BIH
2F
2
3
Branch to subroutine
BSR
AD
2
6
Table 3-4 Bit manipulation instructions
Addressing modes
Bit set/clear
Bit test and branch
Function
Mnemonic
Opcode
# Bytes # Cycles
Opcode
# Bytes # Cycles
Branch if bit n is set
BRSET n (n=0–7)
2n
3
5
Branch if bit n is clear
BRCLR n (n=0–7)
01+2n
3
5
Set bit n
BSET n (n=0–7)
10+2n
2
5
Clear bit n
BCLR n (n=0–7)
11+2n
2
5
28
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