debug.c

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/*! \file debug.c \brief Debugging function library. */
//*****************************************************************************
//
// File Name    : 'debug.c'
// Title        : Helpful debugging functions
// Author       : Pascal Stang - Copyright (C) 2003
// Created      : 2003-03-13
// Revised      : 2003-03-13
// Version      : 0.1
// Target MCU   : any
// Editor Tabs  : 4
//
// Description  : This file contains a set of functions which may be useful
//      for general debugging.
//
// This code is distributed under the GNU Public License
//      which can be found at http://www.gnu.org/licenses/gpl.txt
//
//*****************************************************************************

#include "global.h"
#include "debug.h"

#include "rprintf.h"        // include printf support

// global variables

// functions

// Print a part of memory as a formatted hex table with ascii translation
void debugPrintHexTable(u16 length, u08 *buffer)
{
    u08 i;
    u16 j;
    u08 *buf;
    u08 s;

    buf = buffer;
    
    // print the low order address indicies and ASCII header
    rprintfStr("     00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F  0123456789ABCDEF\r\n");
    rprintfStr("     -----------------------------------------------  ---- ASCII -----\r\n");
    
    // print the data
    for(j=0; j<((length+15)>>4); j++)
    {
        // print the high order address index for this line
        rprintfu16(j<<4);
        rprintfChar(' ');

        // print the hex data
        for(i=0; i<0x10; i++)
        {
            // be nice and print only up to the exact end of the data
            if( ((j<<4)+i) < length)
            {
                // print hex byte
                rprintfu08(buf[(j<<4)+i]);
                rprintfChar(' ');
            }
            else
            {
                // we're past the end of the data's length
                // print spaces
                rprintfStr("   ");
            }
        }
        
        // leave some space
        rprintfChar(' ');

        // print the ascii data
        for(i=0; i<0x10; i++)
        {
            // be nice and print only up to the exact end of the data
            if( ((j<<4)+i) < length)
            {
                // get the character
                s = buf[(j<<4)+i]; 
                // make sure character is printable
                if(s >= 0x20)
                    rprintfChar(s);
                else
                    rprintfChar('.');
            }
            else
            {
                // we're past the end of the data's length
                // print a space
                rprintfChar(' ');
            }
        }
        rprintfCRLF();
    }
}

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