toggle control

#include <16F877.h> #device adc=8 #FUSES NOWDT ,XT #use delay(clock=4000000) void main() { set_tris_a(0xff); set_tris_b(0x00); setup_adc_ports(NO_ANALOGS); setup_adc(ADC_OFF); output_b(0x00); while(true){ if(!input(pin_a0)){ output_toggle(pin_b0); delay_ms(100); while(!input(pin_a0)); } } }