/* Put your name(s) here
Name this program - Homework#1 */
#include <c8051_SDCC.h>/* include files. This file is available online*/
#include <stdio.h>

void main(void)    /* start main function */
{
    int imax, i;   /* declare variables before first executable code */
    unsigned char count; 
    unsigned char input;

// The following 2 lines MUST be the 1st executable statements in every program
    Sys_Init();    /* Initialize UART, System clock and crossbar*/
    putchar(' ');  /* do this because we tell you to */
    while(1)       /* begin infinite loop */
    {
        printf("\r\n enter 1 to count to 18 or 2 to count to 270 \r\n");
        input=getchar();       /* get count value */
        if (input=='1')        /* if input is 1, count to 18 */
        {
            count=18;
            imax=18;
        }
        else if (input=='2')   /* if input is 2, count to 270 */
        {
            count=270;
            imax=270;
        }
        else imax=0;           /* for other inputs, skip counting */
        printf("\n count value is %u  ",imax);
        printf("\n\n Decimal   hex \n\r");
        for(i=0;i<=imax;i++)
        {
            count=i;
            printf("%u   %x \n\r", count, count); 
            /* print number as both decimal and hex decimal and hex */
            /* NOTE: %x prints hexadecimal numbers WITHOUT the 0x prefix */
        }   /* end for loop */
    }       /* end while loop */
}           /* end main function */