Hood Control Board

#include <16f628A.h>
#fuses NOWDT
#fuses MCLR
#fuses NOBROWNOUT
#fuses NOLVP
#USE DELAY(INTERNAL=4000000)
#USE FAST_IO (A)
#USE FAST_IO (B)
//-"direccionamiento de ports-//
#byte port_A = 0x05
#byte port_B = 0x06
#define speed1 PIN_B4
#define speed2 PIN_B5
#define speed3 PIN_B6
#define light PIN_B7



    VOID MAIN()
{
        SET_TRIS_A(0xff);
        SET_TRIS_b(0x00);
        output_b(0);

       speed_1:
 while(1){

 do{
     if(!input(pin_a1))goto lights;
     if(!input(pin_a2))goto speed_3;
     if(!input(pin_a3))goto speed_2;
 }while(input(pin_a4));
     output_low(speed2);
     output_low(speed3);
     delay_ms(50);
     output_high(speed1);
     delay_ms(500);
 do{
     if(!input(pin_a1))goto lights;
     if(!input(pin_a2))goto speed_3;
     if(!input(pin_a3))goto speed_2;
 }while(input(pin_a4));
       output_low(speed1);
       delay_ms(500);
 }


 speed_2:
 while(1){

 do{
     if(!input(pin_a1))goto lights;
     if(!input(pin_a2))goto speed_3;
     if(!input(pin_a4))goto speed_1;
 }while(input(pin_a3));
     output_low(speed1);
     output_low(speed3);
     delay_ms(50);
     output_high(speed2);
     delay_ms(500);
 do{
     if(!input(pin_a1))goto lights;
     if(!input(pin_a2))goto speed_3;
     if(!input(pin_a4))goto speed_1;
 }while(input(pin_a3));
       output_low(speed2);
       delay_ms(500);
 }


      speed_3:
 while(1){

 do{
     if(!input(pin_a1))goto lights;
     if(!input(pin_a3))goto speed_2;
     if(!input(pin_a4))goto speed_1;
 }while(input(pin_a2));
     output_low(speed1);
     output_low(speed2);
     delay_ms(50);
     output_high(speed3);
     delay_ms(500);
 do{
     if(!input(pin_a1))goto lights;
     if(!input(pin_a3))goto speed_2;
     if(!input(pin_a4))goto speed_1;
 }while(input(pin_a2));
       output_low(speed3);
       delay_ms(500);
 }

           lights:
       while(1){

 do{
     if(!input(pin_a4))goto speed_1;
     if(!input(pin_a2))goto speed_2;
     if(!input(pin_a3))goto speed_3;
 }while(input(pin_a1));
     delay_ms(50);
     output_high(light);
     delay_ms(500);
 do{
     if(!input(pin_a4))goto speed_1;
     if(!input(pin_a2))goto speed_2;
     if(!input(pin_a3))goto speed_3;
 }while(input(pin_a1));
       output_low(light);
       delay_ms(500);
 }
 }