参数资料
型号: 78064B
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: 62/129页
文件大小: 644K
代理商: 78064B
62
CHAPTER 5 EXPLANATION OF INSTRUCTIONS
User's Manual U12326EJ4V0UM
Compare
CMP
Byte Data Comparison
[Instruction format]
CMP dst, src
[Operation]
dst
src
[Operand]
Mnemonic
Operand(dst,src)
Mnemonic
Operand(dst,src)
CMP
A, #byte
CMP
A, !addr16
saddr, #byte
A, [HL]
A, r
Note
A, [HL+byte]
r, A
A, [HL+B]
A, saddr
A, [HL+C]
Note
Except r = A
[Flag]
Z
AC
CY
×
×
×
[Description]
The source operand (src) specified by the 2nd operand is subtracted from the destination operand (dst)
specified by the 1st operand.
The subtraction result is not stored anywhere and only the Z, AC and CY flags are changed.
If the subtraction result is 0, the Z flag is set (1). In all other cases, the Z flag is cleared (0).
If the subtraction generates a borrow out of bit 7, the CY flag is set (1). In all other cases, the CY flag is
cleared (0).
If the subtraction generates a borrow for bit 3 out of bit 4, the AC flag is set (1). In all other cases, the AC
flag is cleared (0).
[Description example]
CMP FE38H, #38H;
38H is subtracted from the contents at address FE38H and only the flags are changed
(comparison of contents at address FE38H and the immediate data).
相关PDF资料
PDF描述
78064Y Common to 78K/0 Series
78070A Common to 78K/0 Series
78070AY Common to 78K/0 Series
78075B Common to 78K/0 Series
78075BY Common to 78K/0 Series
相关代理商/技术参数
参数描述
78064Y 制造商:NEC 制造商全称:NEC 功能描述:Common to 78K/0 Series
78065-004 制造商:FCI 功能描述:
780-651 制造商:WAGO Innovative Connections 功能描述:RL MTD BLK ANGLE BLUE
780651F00000 制造商:Aavid Thermalloy 功能描述:8 FT EXTRUSTIONS - Bulk
780653B00590 制造商:Aavid Thermalloy 功能描述:- Bulk