参数资料
型号: 780228
厂商: NEC Corp.
英文描述: Common to 78K/0 Series
中文描述: 共同的78K / 0系列
文件页数: 113/129页
文件大小: 644K
代理商: 780228
CHAPTER 5 EXPLANATION OF INSTRUCTIONS
113
User's Manual U12326EJ4V0UM
Branch if False
BF
Conditional Branch by Bit Test (Byte Data Bit = 0)
[Instruction format]
BF bit, $addr16
[Operation]
PC
PC+b+jdisp8 if bit = 0
[Operand]
Mnemonic
Operand(bit,$addr16)
b(Number of bytes)
BF
saddr.bit, $addr16
4
sfr.bit, $addr16
4
A.bit, $addr16
3
PSW.bit, $addr16
4
[HL].bit, $addr16
3
[Flag]
Z
AC
CY
[Description]
If the 1st operand (bit) contents have been cleared (0), data is branched to the address specified by the 2nd
operand ($addr16).
If the 1st operand (bit) contents have not been cleared (0), no processing is carried out and the subsequent
instruction is executed.
[Description example]
BF P2.2, $1549H;
When bit 2 of port 2 is 0, data is branched to address 1549H (with the start of this instruction
set in the range of addresses 14C6H to 15C5H).
相关PDF资料
PDF描述
780308 Common to 78K/0 Series
780308Y Common to 78K/0 Series
78058FY Common to 78K/0 Series
78064B Common to 78K/0 Series
78064Y Common to 78K/0 Series
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