参数资料
型号: 780024
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: 58/129页
文件大小: 644K
代理商: 780024
58
CHAPTER 5 EXPLANATION OF INSTRUCTIONS
User's Manual U12326EJ4V0UM
Subtract with Carry
SUBC
Subtraction of Byte Data with Carry
[Instruction format]
SUBC dst, src
[Operation]
dst, CY
dst
src
CY
[Operand]
Mnemonic
Operand(dst,src)
Mnemonic
Operand(dst,src)
SUBC
A, #byte
SUBC
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 and the CY flag are subtracted from the destination
operand (dst) specified by the 1st operand and the result is stored in the destination operand (dst).
The CY flag is subtracted from the least significant bit. This instruction is mainly used for subtraction of two
or more bytes.
If the subtraction shows that dst 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]
SUBC A, [HL];
The (HL register) address contents and the CY flag are subtracted from the A register and
the result is stored in the A register.
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相关代理商/技术参数
参数描述
78002415 制造商:Laird Technologies Inc 功能描述:SLMT 2F ZNC USFT
78002417 制造商:Laird Technologies Inc 功能描述:SLMT 2F SNB USFT
78002419 制造商:Laird Technologies Inc 功能描述:SLMT 2F NIB USFT
78002-49-59 制造商:VERNITRON - USE MOL 功能描述:Cross Referenced to MOLEX - Part: MOL38789-0016
780024Y 制造商:NEC 制造商全称:NEC 功能描述:Common to 78K/0 Series