PIC18F-LF1XK50 MICROCHIP [Microchip Technology], PIC18F-LF1XK50 Datasheet - Page 338

• Manufacturer Part Number: PIC18F-LF1XK50
• Description: 20-Pin USB Flash Microcontrollers
• Manufacturer: MICROCHIP [Microchip Technology]

PIC18F/LF1XK50
POP
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
DS41350E-page 338
Q Cycle Activity:
Before Instruction
After Instruction
Decode
TOS
Stack (1 level down)
TOS
PC
Q1
operation
Pop Top of Return Stack
POP
None
(TOS)  bit bucket
None
The TOS value is pulled off the return
stack and is discarded. The TOS value
then becomes the previous value that
was pushed onto the return stack.
This instruction is provided to enable
the user to properly manage the return
stack to incorporate a software stack.
1
1
POP
GOTO
0000
Q2
No
0000
NEW
POP TOS
=
=
=
=
value
Q3
0031A2h
014332h
014332h
NEW
0000
operation
Q4
No
0110
Preliminary
PUSH
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Words:
Cycles:
Example:
Q Cycle Activity:
Before Instruction
After Instruction
Decode
TOS
PC
PC
TOS
Stack (1 level down)
Q1
PC + 2 onto
return stack
Push Top of Return Stack
PUSH
None
(PC + 2)  TOS
None
The PC + 2 is pushed onto the top of
the return stack. The previous TOS
value is pushed down on the stack.
This instruction allows implementing a
software stack by modifying TOS and
then pushing it onto the return stack.
1
1
PUSH
PUSH
0000
Q2
 2010 Microchip Technology Inc.
0000
operation
=
=
=
=
=
Q3
No
345Ah
0126h
345Ah
0124h
0126h
0000
operation
Q4
No
0101