64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
/*
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* Copyright © 2008 Keith Packard <keithp@keithp.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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*/
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#include "ccdbg.h"
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uint8_t
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ccdbg_set_rom(struct ccdbg *dbg, struct ao_hex_image *rom)
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{
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if (dbg->rom)
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ao_hex_image_free(dbg->rom);
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dbg->rom = rom;
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return 0;
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}
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uint8_t
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ccdbg_rom_contains(struct ccdbg *dbg, uint16_t addr, int nbytes)
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{
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struct ao_hex_image *rom = dbg->rom;
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if (!rom)
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return 0;
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if (addr < rom->address || rom->address + rom->length < addr + nbytes)
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return 0;
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return 1;
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}
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uint8_t
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ccdbg_rom_replace_xmem(struct ccdbg *dbg,
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uint16_t addr, uint8_t *bytes, int nbytes)
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{
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struct ao_hex_image *rom = dbg->rom;
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if (!rom)
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return 0;
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if (rom->address < addr + nbytes && addr < rom->address + rom->length) {
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int start, stop;
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start = addr;
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if (addr < rom->address)
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start = rom->address;
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stop = addr + nbytes;
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if (rom->address + rom->length < stop)
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stop = rom->address + rom->length;
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memcpy(bytes + start - addr, rom->data + start - rom->address,
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stop - start);
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return 1;
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}
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return 0;
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}
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