參數(shù)資料
型號： HMS38112
廠商： Electronic Theatre Controls, Inc.
英文描述： 4-BIT SINGLE CHIP MICROCOMPUTERS
中文描述： 4位單片機微機
文件頁數(shù)： 52/73頁
文件大?。?/td> 505K
代理商： HMS38112
4-13
(23) IA
Naming :
Status :
Format :
Function :
<Comment>
Increment Accumulator
Set
é
A
à
A+1
Data of the accumulator is incremented by one. Results are
returned to the accumulator.
A carry is not allowed to have effect upon the status.
(24) IY
Naming :
Status :
Format :
Function :
Increment Y-Register and Status 1 on Carry
Carry to status
é
Y
à
Y + 1
ST
à
1 (when Y = 15)
ST
à
0 (when Y < 15)
<Comment>
Data of the Y-register is incremented by one and results are
returned to the Y-register.
Carry data as results is transferred to the status. When the
total is more than 15, the status is set.
(25) DA
Naming :
Status :
Format :
Function :
Decrement Accumulator and Status 1 on Borrow
Carry to status
é
A
à
A - 1
ST
à
1(when A
1)
ST
à
0 (when A = 0)
<Comment>
Data of the accumulator is decremented by one. As a result
(by addition of Fh), if a borrow is caused, the status is reset to
ì
0
ì
by logic. If the data is more than one, no borrow occurs
and thus the status is set to
ì
1
ì
.
Chapter 4. Instruction
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