參數(shù)資料
型號: FM8P56
廠商: Electronic Theatre Controls, Inc.
英文描述: EPROM/ROM-Based 8-Bit Microcontroller Series
中文描述: 存儲器/基于ROM的8位微控制器系列
文件頁數(shù): 33/50頁
文件大小: 368K
代理商: FM8P56
FM8P54/56
Rev1.21 May 31, 2005
P.33/FM8P54/56
FEELING
TECHNOLOGY
RETIA
Syntax:
Operands:
Operation:
Return with Immediate in ACC
RETIA I
0
I
255
I
ACC;
Top of Stack
PC
None
The ACC register is loaded with the 8-bit immediate ‘I’. The program counter is loaded from
the top of the stack (the return address). This is a two-cycle instruction.
2
Status Affected:
Description:
Cycles:
RETURN
Syntax:
Operands:
Operation:
Status Affected:
Description:
Return from Subroutine
RETURN
None
Top of Stack
PC
None
The program counter is loaded from the top of the stack (the return address). This is a
two-cycle instruction.
2
Cycles:
RLR
Syntax:
Operands:
Rotate Left f through Carry
RLR R, d
0
R
63
d
[0,1]
R<7>
C;
R<6:0>
dest<7:1>;
C
dest<0>
C
The contents of register ‘R’ are rotated one bit to the left through the Carry Flag. If ‘d’ is 0 the
result is placed in the ACC register. If ‘d’ is 1 the result is stored back in register ‘R’.
1
Operation:
Status Affected:
Description:
Cycles:
RRR
Syntax:
Operands:
Rotate Right f through Carry
RRR R, d
0
R
63
d
[0,1]
C
dest<7>;
R<7:1>
dest<6:0>;
R<0>
C
C
The contents of register ‘R’ are rotated one bit to the right through the Carry Flag. If ‘d’ is 0 the
result is placed in the ACC register. If ‘d’ is 1 the result is placed back in register ‘R’.
1
Operation:
Status Affected:
Description:
Cycles:
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