+++ /dev/null
-/*
- * Copyright © 2010 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; version 2 of the License.
- *
- * 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.
- */
-
-package altosui;
-
-import java.lang.*;
-import java.io.*;
-import java.util.concurrent.LinkedBlockingQueue;
-import java.util.LinkedList;
-import java.util.Iterator;
-import java.util.Arrays;
-
-class HexFileInputStream extends PushbackInputStream {
- public int line;
-
- public HexFileInputStream(FileInputStream o) {
- super(new BufferedInputStream(o));
- line = 1;
- }
-
- public int read() throws IOException {
- int c = super.read();
- if (c == '\n')
- line++;
- return c;
- }
-
- public void unread(int c) throws IOException {
- if (c == '\n')
- line--;
- if (c != -1)
- super.unread(c);
- }
-}
-
-class HexRecord implements Comparable {
- public int address;
- public int type;
- public byte checksum;
- public byte[] data;
-
- static final int NORMAL = 0;
- static final int EOF = 1;
- static final int EXTENDED_ADDRESS = 2;
-
- enum read_state {
- marker,
- length,
- address,
- type,
- data,
- checksum,
- newline,
- white,
- done,
- }
-
- boolean ishex(int c) {
- if ('0' <= c && c <= '9')
- return true;
- if ('a' <= c && c <= 'f')
- return true;
- if ('A' <= c && c <= 'F')
- return true;
- return false;
- }
-
- boolean isspace(int c) {
- switch (c) {
- case ' ':
- case '\t':
- return true;
- }
- return false;
- }
-
- int fromhex(int c) {
- if ('0' <= c && c <= '9')
- return c - '0';
- if ('a' <= c && c <= 'f')
- return c - 'a' + 10;
- if ('A' <= c && c <= 'F')
- return c - 'A' + 10;
- return -1;
- }
-
- public byte checksum() {
- byte got = 0;
-
- got += data.length;
- got += (address >> 8) & 0xff;
- got += (address ) & 0xff;
- got += type;
- for (int i = 0; i < data.length; i++)
- got += data[i];
- return (byte) (-got);
- }
-
- public int compareTo(Object other) {
- HexRecord o = (HexRecord) other;
- return address - o.address;
- }
-
- public String toString() {
- return String.format("%04x: %02x (%d)", address, type, data.length);
- }
-
- public HexRecord(HexFileInputStream input) throws IOException {
- read_state state = read_state.marker;
- int nhexbytes = 0;
- int hex = 0;
- int ndata = 0;
- byte got_checksum;
-
- while (state != read_state.done) {
- int c = input.read();
- if (c < 0 && state != read_state.white)
- throw new IOException(String.format("%d: Unexpected EOF", input.line));
- if (c == ' ')
- continue;
- switch (state) {
- case marker:
- if (c != ':')
- throw new IOException("Missing ':'");
- state = read_state.length;
- nhexbytes = 2;
- hex = 0;
- break;
- case length:
- case address:
- case type:
- case data:
- case checksum:
- if(!ishex(c))
- throw new IOException(String.format("Non-hex char '%c'", c));
- hex = hex << 4 | fromhex(c);
- --nhexbytes;
- if (nhexbytes != 0)
- break;
-
- switch (state) {
- case length:
- data = new byte[hex];
- state = read_state.address;
- nhexbytes = 4;
- break;
- case address:
- address = hex;
- state = read_state.type;
- nhexbytes = 2;
- break;
- case type:
- type = hex;
- if (data.length > 0)
- state = read_state.data;
- else
- state = read_state.checksum;
- nhexbytes = 2;
- ndata = 0;
- break;
- case data:
- data[ndata] = (byte) hex;
- ndata++;
- nhexbytes = 2;
- if (ndata == data.length)
- state = read_state.checksum;
- break;
- case checksum:
- checksum = (byte) hex;
- state = read_state.newline;
- break;
- default:
- break;
- }
- hex = 0;
- break;
- case newline:
- if (c != '\n' && c != '\r')
- throw new IOException("Missing newline");
- state = read_state.white;
- break;
- case white:
- if (!isspace(c)) {
- input.unread(c);
- state = read_state.done;
- }
- break;
- case done:
- break;
- }
- }
- got_checksum = checksum();
- if (got_checksum != checksum)
- throw new IOException(String.format("Invalid checksum (read 0x%02x computed 0x%02x)\n",
- checksum, got_checksum));
- }
-}
-
-public class AltosHexfile {
- public int address;
- public byte[] data;
-
- public byte get_byte(int a) {
- return data[a - address];
- }
-
- public AltosHexfile(FileInputStream file) throws IOException {
- HexFileInputStream input = new HexFileInputStream(file);
- LinkedList<HexRecord> record_list = new LinkedList<HexRecord>();
- boolean done = false;
-
- while (!done) {
- HexRecord record = new HexRecord(input);
-
- if (record.type == HexRecord.EOF)
- done = true;
- else
- record_list.add(record);
- }
- HexRecord[] records = record_list.toArray(new HexRecord[0]);
- Arrays.sort(records);
- if (records.length > 0) {
- int base = records[0].address;
- int bound = records[records.length-1].address +
- records[records.length-1].data.length;
-
- data = new byte[bound - base];
- address = base;
- Arrays.fill(data, (byte) 0xff);
-
- /* Paint the records into the new array */
- for (int i = 0; i < records.length; i++) {
- for (int j = 0; j < records[i].data.length; j++)
- data[records[i].address - base + j] = records[i].data[j];
- }
- }
- }
-}
\ No newline at end of file
projects / fw / altos / blobdiff