button pullup/down resistor?

[abidr]

I'd rather code the button to debounce something like below:
CHECK_PB:
IF PB = 0 THEN DEBOUNCE_PB
RETURN

DEBOUNCE_PB:
PAUSEUS 200
IF PB = 0 THEN CHECK_PB

MENU_CNT = MENU_CNT + 1

RETURN
and before that I would prefer to make the pin connected to button as output..

[skimask]

I'd rather code the button to debounce something like below:

True...but the thing has to be working halfway in the first place...then all the options can be added...
No sense in having spanky shiny rims on a car without an engine?

[abidr]

You need to look at the PIC16F877A data sheet page 51 which says that port D is a parallel Slave Port.
I think you need to disable the PSP.

[skimask]

You need to look at the PIC16F877A data sheet page 51 which says that port D is a parallel Slave Port.
I think you need to disable the PSP.

You mean the Parallel Slave Port that's disabled by default on power up, thereby letting Port D function as normal I/O?