util.c

来自「A few drivers for the Motorola C380 s ce」· C语言 代码 · 共 34 行

/*
   Utility functions set
   ----------------------------
   (c) motoprogger 2008
*/

#include "motolibs.h"

char util_ui4_to_hexasc(byte num)
{
        if (num<10) return '0'+num;
        else return 'A'+num-10;
}

void util_ui32_to_hexasc(word num, char * numstr, byte chars)
{
        byte i;
        for (i=0; i<chars; i++) numstr[i]=util_ui4_to_hexasc((byte) (num>>((chars-i-1)*4)));
}

char * util_ui32_to_decasc(word num, char * lastch)
{
        char * cur;
        word div;
        byte rem;
        cur=lastch;
        div=num;
        do {
                rem=(byte) (div%10);
                div=div/10;
                *(lastch--)='0'+rem;
        } while (div);
        return lastch+1;
}