Specifications

mikroElektronika | Free Online Book | PIC Microcontrollers | Chapter 9: Instruction Set

EXAMPLE :

....

[label] RETFIE

Before instruction execution: PC = x

GIE (interrupt enable bit of the SATUS

After instruction: PC = TOS (top of stack)

GIE = 1

RETLW - Return with literal in W

Syntax: [label] RETLW k

Description: 8-bit literal k is loaded into register W. The value from the top of stack is

loaded to the program counter.

Operation: (k) -> W; top of stack (TOP) -> PC

Operand: -

Status affected: -

Number of cycles: 2

EXAMPLE :

....

[label] RETLW 0x43

Before instruction execution: W = x

PC = x

TOS (top of stack) = x

After instruction: W = 0x43

PC = TOS (top of stack)

TOS (top of stack) = TOS - 1

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