//--------------------------------------------------------------------------
//
//  Software for MSP430 based e-meters.
//
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//
//  Unless otherwise stated, the Program written and copyrighted 
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//  only under TI's copyright in the Program, use and modify the 
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//  You may not use the Program in non-TI devices.
//
//  File: host_dec16.c
//
//  Steve Underwood <steve-underwood@ti.com>
//  Texas Instruments Hong Kong Ltd.
//
//  $Id: host_dec16.c,v 1.2 2003/07/28 10:30:23 XHKJAMES Exp $
//
//--------------------------------------------------------------------------
#include <stdint.h>
#include "emeter-toolkit-custom.h"
#include "emeter-toolkit.h"

//Display a signed 16 bit integer, with leading zero
//suppression.
void host_dec16(register int16_t value)
{
    register int8_t i;
    register int8_t flag;
    register uint8_t digit;
    uint8_t bcd[3];

    if (value < 0)
    {
        flag = 2;
        value = -value;
    }
    else
    {
        flag = 1;
        host_char(' ');
    }
    bin2bcd16(bcd, value);
    for (i = 1;  i < 6;  i++)
    {
        digit = bcd[i >> 1];
        if ((i & 1) == 0)
            digit >>= 4;
        if ((digit & 0x0F)  ||  i == 5)
        {
            if (flag == 2)
                host_char('-');
            flag = 0;
        }
        host_char((flag == 0)  ?  hex2ASCII(digit)  :  ' ');
    }
    host_char(' ');
}