參數(shù)資料
型號: UPD65650-QFP120P1.2SQ
英文描述: ASIC
中文描述: 專用集成電路
文件頁數(shù): 46/64頁
文件大?。?/td> 399K
代理商: UPD65650-QFP120P1.2SQ
46
μ
PD64A, 65
Data Sheet U14380EJ2V0DS00
STTS #data4
<1> Instruction code
:
0 0 0 1 1 1 0 0 0 1
:
0 0 0 0 0 0 d
3
d
2
d
1
d
0
: 1
: if statuses match
else
F
0
<2> Cycle count
<3> Function
F
1
Compares the S
0
, S
1
, K
I/O
, K
I
, and TIMER statuses with the immediate data contents. If at least one
of the statuses coincides with the bits that have been set, the status flag F is set (to 1).
If none of them coincide, the status flag F is cleared (to 0).
SCAF (Set Carry If A
CC
= F
H
)
<1> Instruction code
<2> Cycle count
<3> Function
:
1 1 0 1 0 1 0 0 1 1
: 1
: if
A = 0FH
else
CY
0
CY
1
Sets the carry flag CY (to 1) if the accumulator contents are FH.
The accumulator values after executing the SCAF instruction are as follows:
Accumulator Value
Carry Flag
Before execution
After execution
×××
0
××
01
×
011
0000
0 (clear)
0001
0 (clear)
0011
0 (clear)
0111
0111
0 (clear)
1111
1111
1 (set)
Remark
×
: don’t care
NOP
<1> Instruction code
<2> Cycle count
<3> Function
No operation
:
0 0 0 0 0 0 0 0 0 0
: 1
: PC
PC + 1
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