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//
// srecord - manipulate eprom load files
// Copyright (C) 1998, 1999, 2001, 2002, 2006, 2007 Peter Miller
//
// 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 3 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, see
// <http://www.gnu.org/licenses/>.
//
#include <cstring>
#include <lib/srec/record.h>
srec_record::srec_record():
type(type_unknown),
address(0),
length(0)
{
}
srec_record::srec_record(const srec_record & arg) :
type(arg.type),
address(arg.address),
length(arg.length)
{
if (arg.length > 0)
memcpy(data, arg.data, arg.length);
}
srec_record::srec_record(type_t arg) :
type(arg),
address(0),
length(0)
{
}
srec_record::srec_record(type_t a1, address_t a2) :
type(a1),
address(a2),
length(0)
{
}
srec_record::srec_record(type_t a1, address_t a2, const data_t * a3, int a4) :
type(a1),
address(a2),
length(a4 > 0 ? a4 : 0)
{
if (length > 0)
memcpy(data, a3, length);
}
srec_record & srec_record::operator = (const srec_record & arg)
{
if (this != &arg)
{
type = arg.type;
address = arg.address;
length = arg.length;
if (arg.length > 0)
memcpy(data, arg.data, arg.length);
}
return *this;
}
srec_record::~srec_record()
{
}
int
srec_record::maximum_data_length(address_t address)
{
if (address < (1UL << 16))
return 252;
if (address < (1UL << 24))
return 251;
return 250;
}
srec_record::address_t
srec_record::decode_big_endian(data_t *buffer, int length)
{
address_t result = 0;
while (length-- > 0)
result = (result << 8) | *buffer++;
return result;
}
void
srec_record::encode_big_endian(data_t *buffer, address_t value, int length)
{
while (length > 0)
{
buffer[--length] = value;
value >>= 8;
}
}
void
srec_record::encode_little_endian(data_t *buffer, address_t value, int length)
{
while (length-- > 0)
{
*buffer++ = value;
value >>= 8;
}
}
bool srec_record::is_all_zero() const
{
for (int j = 0; j < length; ++j)
if (data[j])
return false;
return true;
}
void
srec_record::set_data_extend(int n, int d)
{
// assert(n >= 0);
// assert(n < max_data_length);
if (0 <= n && n < max_data_length)
{
data[n] = d;
if (length <= n)
length = n + 1;
}
}
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