PIC17C752 MICROCHIP [Microchip Technology], PIC17C752 Datasheet - Page 208

• Manufacturer Part Number: PIC17C752
• Description: High-Performance 8-Bit CMOS EPROM Microcontrollers
• Manufacturer: MICROCHIP [Microchip Technology]

RETURN
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Q Cycle Activity:
Example:
DS30264A-page 208
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'
Rotate Left f through Carry
[ label ] RLCF
0
d
f<n>
f<7>
C
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
1997 Microchip Technology Inc.
255
d<n+1>;
C;
101d
Process
Data
Q3
register f
REG,0
f,d
ffff
destination
Write to
Q4
ffff