portc and 7 always 0

[stan cartwright]

This code extract to wait for a button on portc.0,1,2 tied low to go high doesn't work but testing buttons if on is fine.
Masking a port like this works on a pic. Please tell me what I'm doing wrong.

#chip mega328p, 16
#include <UNO_mega328p.h >
#option explicit
#define left_button portc.0 ;cannon buttons
#define right_button portc.1
#define fire_button portc.2
dir left_button in
dir right_button in
dir fire_button in
;
do
temp=(portc and 7) ;ALWAYS ZERO
glcdprint 0,32,temp
;  Randomize
loop until (portc and 7)>0 ;HELP

[Anobium]

I remember updating the Help page for you. See http://gcbasic.sourceforge.net/help/_inputs_outputs.html

[stan cartwright]

avr sometimes use pinc

do
randomise
loop until (pinc and 7)>0

yet, if portc.1=1 then...works ok
pin is not in include <uno_mega328p.h></uno_mega328p.h>