參數(shù)資料
型號(hào): W741E200
英文描述: 4-Bit Microcontroller
中文描述: 4位微控制器
文件頁(yè)數(shù): 71/84頁(yè)
文件大?。?/td> 344K
代理商: W741E200
Preliminary W741E20X
Publication Release Date: March 1998
- 71 -
Revision A1
Instruction Set Table 2, continued
RRC R
Rotate Right R with CF
Machine Code:
Machine Cycle:
Operation:
Description:
Flag Affected:
RTN
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
Return from subroutine
Machine Code:
Machine Cycle:
Operation:
Description:
SBC R, ACC
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.
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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