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參數(shù)資料
型號: W741C250
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 4-BIT Microcontroller(多次可編程4位的微控制器)
中文描述: 4-BIT, MROM, 4.19 MHz, MICROCONTROLLER, PQFP64
封裝: 14 X 20 MM, QFP-64
文件頁數(shù): 78/88頁
文件大小: 496K
代理商: W741C250
W741C250
- 78 -
Instruction Set Table 2, continued
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
SBC WR, #I
Subtract immediate data from WR with Borrow
Machine Code:
Machine Cycle:
Operation:
Description:
Flag Affected:
0
0
0
0
1
1
1
0
I3
I2
I1
I0
W3 W2 W1 W0
1
ACC
(WR) - I - (CF)
The immediate data I and CF are binary subtracted from the contents of
the WR and the result is loaded into the ACC.
CF & ZF
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