參數(shù)資料
型號: S3C1860XX-DK
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDIP20
封裝: 0.300 INCH, DIP-20
文件頁數(shù): 31/95頁
文件大?。?/td> 339K
代理商: S3C1860XX-DK
S3C1840/C1850/C1860/P1860
INSTRUCTION SET
5-9
CPNZ @HL
Binary Code:
0 0 1 1
1 1 1 1
Description:
This instruction compares the magnitude of indirect data memory with zero, and the
appropriate flag is set if their values are not equal, i.e., if the contents of indirect data
memory are not zero.
The contents of operand are unaffected by the comparison.
Operation:
M [(H,L)]
≠ 0
Flags:
SF : Set if not zero, cleared otherwise
SL : Unaffected
Example:
Assume the contents of RAM address are 4H
CPNZ
@HL
; Compare 4H with zero
JP
EQ
; Jump to EQ because the result is not equal
JP
WAIT
CPNE
L,A
Binary Code:
0 0 0 0
0 0 1 0
Description:
The contents of the accumulator are compared to the contents of register L; the
appropriate flags are set if their values are not equal.
The contents of both operands are unaffected by the comparison.
Operation:
(L)
≠ (A)
Flags:
SF : Set if not equal, cleared otherwise
SL : Set if not equal, cleared otherwise
Example:
Assume REG L contains 5H, A contains 4H
CPNE
L,A
; Compare A to REG L values
JP
K1
; Jump to K1 because the result is not equal
JP
K2
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