PIC17C756A MICROCHIP [Microchip Technology], PIC17C756A Datasheet - Page 222

• Manufacturer Part Number: PIC17C756A
• Description: High-Performance 8-bit CMOS EPROM Microcontrollers with 10-bit A/D
• Manufacturer: MICROCHIP [Microchip Technology]

PIC17C7XX
RETURN
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Example:
DS30289B-page 222
After Interrupt
operation
Decode
PC = TOS
Q1
No
operation
operation
Return from Subroutine
[ label ]
None
TOS
None
Return from subroutine. The stack is
popped and the top of the stack (TOS)
is loaded into the program counter.
1
2
RETURN
0000
Q2
No
No
PC;
RETURN
0000
operation
Process
Data
Q3
No
0000
from stack
operation
POP PC
Q4
No
0010
RLCF
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Example:
Before Instruction
After Instruction
Decode
REG
C
REG
WREG
C
Q1
=
=
=
=
=
register ’f’
f<n>
C
Rotate Left f through Carry
[ label ] RLCF
0
d
f<7>
C
The contents of register ’f’ are rotated
one bit to the left through the Carry
Flag. If ’d’ is 0, the result is placed in
WREG. If ’d’ is 1, the result is stored
back in register ’f’.
1
1
RLCF
Read
Q2
0001
1110 0110
0
1110 0110
1100 1100
1
f
[0,1]
d<0>
C
2000 Microchip Technology Inc.
255
d<n+1>;
C;
REG,0
101d
Process
Data
Q3
register f
f,d
ffff
destination
Write to
Q4
ffff