參數資料
型號: 780024
廠商: NEC Corp.
英文描述: Common to 78K/0 Series
中文描述: 共同的78K / 0系列
文件頁數: 62/129頁
文件大?。?/td> 644K
代理商: 780024
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).
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PDF描述
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相關代理商/技術參數
參數描述
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 制造商全稱:NEC 功能描述:Common to 78K/0 Series