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/*
* Copyright © 2008 Keith Packard <keithp@keithp.com>
*
* 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 "ccdbg.h"
uint8_t
ccdbg_set_rom(struct ccdbg *dbg, struct ao_hex_image *rom)
{
if (dbg->rom)
ao_hex_image_free(dbg->rom);
dbg->rom = rom;
return 0;
}
uint8_t
ccdbg_rom_contains(struct ccdbg *dbg, uint16_t addr, int nbytes)
{
struct ao_hex_image *rom = dbg->rom;
if (!rom)
return 0;
if (addr < rom->address || rom->address + rom->length < addr + nbytes)
return 0;
return 1;
}
uint8_t
ccdbg_rom_replace_xmem(struct ccdbg *dbg,
uint16_t addr, uint8_t *bytes, int nbytes)
{
struct ao_hex_image *rom = dbg->rom;
if (!rom)
return 0;
if (rom->address < addr + nbytes && addr < rom->address + rom->length) {
int start, stop;
start = addr;
if (addr < rom->address)
start = rom->address;
stop = addr + nbytes;
if (rom->address + rom->length < stop)
stop = rom->address + rom->length;
memcpy(bytes + start - addr, rom->data + start - rom->address,
stop - start);
return 1;
}
return 0;
}
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