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參數資料
型號: W741L250
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 4-BIT MICROCONTROLLER
中文描述: 4-BIT, MROM, 1 MHz, MICROCONTROLLER, PQFP64
封裝: 14 X 20 MM, QFP-64
文件頁數: 76/86頁
文件大小: 478K
代理商: W741L250
W741L250
- 76 -
Instruction Set Table 2, continued
RRC R
Rotate Right R with CF
Machine Code:
Machine Cycle:
Operation:
Description:
Flag Affected:
0
1
0
0
1
1
0
1
1
R6
R5
R4
R3
R2
R1
R0
1
ACC.n, R.n
R.n+1; ACC.3, R.3
CF; CF
R.0
The contents of the ACC and the data memory location addressed by R6 to
R0 are rotated right one bit, bit 0 is rotated into CF, and CF is rotated into
bit 3 (MSB). The same contents are loaded into the ACC.
CF & ZF
RTN
Return from subroutine
Machine Code:
Machine Cycle:
Operation:
Description:
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
1
(PC)
STACK
The program counter (PC10 to PC0) is restored from the stack. A return
from a subroutine occurs.
SBC R, ACC
Subtract ACC from R with Borrow
Machine Code:
Machine Cycle:
Operation:
Description:
Flag Affected:
0
0
0
1
0
1
0
0
R6
R5
R4
R3
R2
R1
R0
0
1
ACC
(R) - (ACC) - (CF)
The contents of the ACC and CF are binary subtracted from the contents of
the data memory location addressed by R6 to R0 and the result is loaded
into the ACC.
CF & ZF
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