//--------------------------------------------------------------------------
//
//  Software for MSP430 based e-meters.
//
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//  agrees to these terms by its first use of the Program. You 
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//  You acknowledge and agree that the Program contains 
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//  You may not use the Program in non-TI devices.
//
//  File: bin2bcd32.c
//
//  Steve Underwood <steve-underwood@ti.com>
//  Texas Instruments Hong Kong Ltd.
//
//  $Id: bin2bcd32.c,v 1.4 2007/08/07 05:53:41 a0754793 Exp $
//
//--------------------------------------------------------------------------
#include <stdint.h>
#include <io.h>
#include "emeter-toolkit-custom.h"
#include "emeter-toolkit.h"

void bin2bcd32(register uint8_t bcd[5], register uint32_t bin)
{
#if defined(__GNUC__)  &&  defined(__MSP430__)
    register int i;
    register uint16_t decimal_0;
    register uint16_t decimal_1;
    register uint16_t decimal_2;

    i = 16;
    decimal_0 =
    decimal_1 =
    decimal_2 = 0;
    __asm__ __volatile__(
        "1: \n"
        " rla   %B[bin] \n"
        " dadd  %[decimal_0],%[decimal_0] \n"
        " dadd  %[decimal_1],%[decimal_1] \n"
        " dadd  %[decimal_2],%[decimal_2] \n"
        " dec   %[i] \n"
        " jnz   1b \n"
        " mov   #16,%[i] \n"
        "2: \n"
        " rla   %A[bin] \n"
        " dadd  %[decimal_0],%[decimal_0] \n"
        " dadd  %[decimal_1],%[decimal_1] \n"
        " dadd  %[decimal_2],%[decimal_2] \n"
        " dec   %[i] \n"
        " jnz   2b \n"
        " mov.b %[decimal_2],0(%[bcd]) \n"
        " mov.b %[decimal_1],2(%[bcd]) \n"
        " swpb  %[decimal_1] \n"
        " mov.b %[decimal_1],1(%[bcd]) \n"
        " mov.b %[decimal_0],4(%[bcd]) \n"
        " swpb  %[decimal_0] \n"
        " mov.b %[decimal_0],3(%[bcd]) \n"
        : [bcd] "+r"(bcd), [decimal_0] "+r"(decimal_0), [decimal_1] "+r"(decimal_1), [decimal_2] "+r"(decimal_2)
        : [bin] "r"(bin), [i] "r"(i));
#elif defined(__AQCOMPILER__)
    register int i;
    register uint16_t decimal_0;
    register uint16_t decimal_1;
    register uint16_t decimal_2;

    decimal_0 =
    decimal_1 =
    decimal_2 = 0;
    /$
        mov     #16,@i
bin2bcd32_1
        rla     @bin.0
        dadd    @decimal_0,@decimal_0
        dadd    @decimal_1,@decimal_1
        dadd    @decimal_2,@decimal_2
        dec     @i
        jnz     bin2bcd32_1
        mov     #16,@i
bin2bcd32_2
        rla     @bin.1
        dadd    @decimal_0,@decimal_0
        dadd    @decimal_1,@decimal_1
        dadd    @decimal_2,@decimal_2
        dec     @i
        jnz     bin2bcd32_2
        mov.b   @decimal_2,0(@bcd)
        mov.b   @decimal_1,2(@bcd)
        swpb    @decimal_1
        mov.b   @decimal_1,1(@bcd)
        mov.b   @decimal_0,4(@bcd)
        swpb    @decimal_0
        mov.b   @decimal_0,3(@bcd)
    $/
#else
    int i;
    char buf[10 + 1];
    
    sprintf (buf, "%010ld", bin);
    for (i = 0;  i < 5;  i++)
        bcd[i] = ((buf[2*i] & 0x0F) << 4) | (buf[2*i + 1] & 0x0F);
#endif
}   
