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//-----------------------------------------------------------------------------
//
// PICSTART Plus programming interface
//
//-----------------------------------------------------------------------------
//
// Cosmodog, Ltd.
// 415 West Superior Street
// Chicago, IL 60610-3429
// http://www.cosmodog.com
//
//-----------------------------------------------------------------------------
//
// this interface to the PICSTART Plus programmer is provided in an effort
// to make the PICSTART (and thus, the PIC family of microcontrollers) useful
// and accessible across multiple platforms, not just one particularly well-
// known, unstable one.
//
//-----------------------------------------------------------------------------
//
// Copyright (C) 1999, 2000 Cosmodog, Ltd.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
//-----------------------------------------------------------------------------
#include "includes.h"
//-----------------------------------------------------------------------------
//
// convert string into an unsigned int, deciphering the base. stop on terminator
// or first bad character return true if result is okay, false if unable to
// interpret the number
//
// 0bnnnnnnnnnnnn = binary (or 0Bnnnnnnnnnnnn)
// 0xnnnn = hex (or 0Xnnnn)
// anything else is decimal
//
//-----------------------------------------------------------------------------
bool atoi_base(char *str, UINT32 *result)
{
int base = 10; // assume decimal
bool fail = false;
*result = 0; // start at zero
if(*str) // do nothing if it's a null string
{
if(*str == '0') // figure out the base
{
str++; // skip the zero
if(toupper(*str) == 'X')
{
base = 16; // leading 0x (or 0X), it's hex
str++; // skip the x
}
else if(toupper(*str) == 'B')
{
base = 2; // leading 0b (or 0B), it's binary
str++; // skip the b
}
}
while(*str && !fail)
{
int digit = toupper(*str++); // force all upper case for hex digits
digit = (digit >= 'A') ? digit - 'A' + 0x0a : digit - '0'; // convert to 0-9, A-F (or try to)
if(digit >= 0 && digit < base) // make sure digit can be represented in this base
{
*result = *result * base + digit; // shift up one order of magnitude, add in this digit
}
else
{
fail = true; // bad character, fail
}
}
}
return(!fail);
}
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