參數(shù)資料
型號(hào): W741C250
英文描述: 4-Bit Microcontroller
中文描述: 4位微控制器
文件頁(yè)數(shù): 51/88頁(yè)
文件大小: 449K
代理商: W741C250
W741C250
Publication Release Date: March 1998
- 51 -
Revision A4
Instruction Set Table 2, continued
DEC R
Decrement R content
Machine Code:
Machine Cycle:
Operation:
Description:
Flag Affected:
0
1
0
0
1
0
1
0
1
R6
R5
R4
R3
R2
R1
R0
1
ACC, R
(R) - 1
Decrement the data memory content and load result into the ACC and the
data memory.
CF & ZF
DIS INT
Disable interrupt function
Machine Code:
Machine Cycle:
Operation:
Description:
0
1
0
1
0
0
0
0
1
0
0
0
0
0
0
0
1
Disable interrupt function
Interrupt function is inhibited by executing this instruction.
DSKNZ R
Decrement R content then skip if ACC ! = 0
Machine Code:
Machine Cycle:
Operation:
Description:
Flag Affected:
0
1
0
0
1
0
0
0
1
R6
R5
R4
R3
R2
R1
R0
1
ACC, R
(R) - 1;
PC
(PC) + 2 if ACC ! = 0
Decrement the data memory content and load result into the ACC and the
data memory. If ACC ! = 0, the program counter is incremented by 2 and
produces a skip.
CF & ZF
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