Motor control with PIC16F877A
You can control 2 motor with L293.CCS C language used for PIC.

Components:
1------------PIC16F877A
2------------L293D
3------------4MHz crystal oscillator
4------------3 button
5------------2x3V dc motor
6------------4x10k res, 3x100ohm res
7------------2x22pF cap
CCS C:
#include "C:\Users\aLper\Desktop\SON\main.h"
void main()
{
setup_adc_ports(NO_ANALOGS);
setup_adc(ADC_OFF);
setup_psp(PSP_DISABLED);
setup_spi(SPI_SS_DISABLED);
setup_timer_0(RTCC_INTERNAL|RTCC_DIV_1);
setup_timer_1(T1_DISABLED);
setup_timer_2(T2_DISABLED,0,1);
setup_comparator(NC_NC_NC_NC);
setup_vref(FALSE);
// TODO: USER CODE!!
while(1)
{
if(input(pin_a0)==1 && input(pin_a1)==0 && input(pin_a2)==0)
{
output_high(pin_b0);
output_low(pin_b1);
output_low(pin_b2);
output_low(pin_b3);
}
if(input(pin_a0)==0 && input(pin_a1)==1 && input(pin_a2)==0)
{
output_high(pin_b0);
output_low(pin_b1);
output_high(pin_b2);
output_low(pin_b3);
}
if(input(pin_a0)==0 && input(pin_a1)==0 && input(pin_a2)==1)
{
output_low(pin_b0);
output_low(pin_b1);
output_high(pin_b2);
output_low(pin_b3);
}
}
}