├── Makefile
├── hex2hcd.c
└── LICENSE


/Makefile:
--------------------------------------------------------------------------------
 1 | CC = gcc
 2 | CFLAGS = -O2
 3 | TARGET = hex2hcd
 4 | PREFIX = /usr/local
 5 | 
 6 | 
 7 | all: $(TARGET)
 8 | 
 9 | $(TARGET): $(TARGET).c
10 | 
11 | install: $(TARGET)
12 | 	install -m 755 $(TARGET) $(PREFIX)/bin
13 | 
14 | uninstall:
15 | 	rm -f $(PREFIX)/bin/$(TARGET)
16 | 
17 | clean:
18 | 	rm -f $(TARGET)
19 | 


--------------------------------------------------------------------------------
/hex2hcd.c:
--------------------------------------------------------------------------------
  1 | /*
  2 |  * Copyright (C) 2012 Canonical
  3 |  *
  4 |  * This program is free software; you can redistribute it and/or
  5 |  * modify it under the terms of the GNU General Public License
  6 |  * as published by the Free Software Foundation; either version 2
  7 |  * of the License, or (at your option) any later version.
  8 |  *
  9 |  * This program is distributed in the hope that it will be useful,
 10 |  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 11 |  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 12 |  * GNU General Public License for more details.
 13 |  *
 14 |  * You should have received a copy of the GNU General Public License
 15 |  * along with this program; if not, write to the Free Software
 16 |  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 17 |  *
 18 |  */
 19 | 
 20 | #include <stdlib.h>
 21 | #include <stdio.h>
 22 | #include <errno.h>
 23 | 
 24 | #define RBUF_SIZE	640
 25 | 
 26 | static unsigned int asc_to_int(char a)
 27 | {
 28 | 	if (a >= 'A')
 29 | 		return (a - 'A') + 10;
 30 | 	else
 31 | 		return a - '0';
 32 | }
 33 | 
 34 | static unsigned int hex_to_int(const char *h)
 35 | {
 36 | 	return asc_to_int(*h) * 0x10 + asc_to_int(*(h + 1));
 37 | }
 38 | 
 39 | static unsigned int lhex_to_int(const char *h)
 40 | {
 41 | 	return hex_to_int(h) * 0x100 + hex_to_int(h + 2);
 42 | }
 43 | 
 44 | static int check_sum(const char *str, int len)
 45 | {
 46 | 	unsigned int sum, cal;
 47 | 	int i;
 48 | 	sum = hex_to_int(str + len - 2);
 49 | 	for (cal = 0, i = 1; i < len - 2; i += 2)
 50 | 		cal += hex_to_int(str + i);
 51 | 	cal = 0x100 - cal & 0xFF;
 52 | 	return sum == cal;
 53 | }
 54 | 
 55 | static int check_hex_line(const char *str, int len)
 56 | {
 57 | 	if ((str[0] != ':') || (len < 11) || !check_sum(str, len) ||
 58 | 		(hex_to_int(str + 1) * 2 + 11 != len))
 59 | 		return 0;
 60 | 	return 1;
 61 | }
 62 | 
 63 | int main(int argc, char *argv[])
 64 | {
 65 | 	unsigned int addr = 0;
 66 | 	FILE *ifp, *ofp;
 67 | 	char *rbuf;
 68 | 	ssize_t len, i;
 69 | 	size_t buflen;
 70 | 
 71 | 	if (argc != 3) {
 72 | 		printf("Usage: %s <input hex file> <output file>\n", argv[0]);
 73 | 		return 0;
 74 | 	}
 75 | 
 76 | 	ifp = fopen(argv[1], "r");
 77 | 	ofp = fopen(argv[2], "w");
 78 | 	if ((ifp == NULL) || (ofp == NULL)) {
 79 | 		puts("failed to open file.");
 80 | 		return -EIO;
 81 | 	}
 82 | 
 83 | 	rbuf = NULL;
 84 | 	while ((len = getline(&rbuf, &buflen, ifp)) > 0) {
 85 | 		int type;
 86 | 		char obuf[7];
 87 | 		unsigned int dest_addr;
 88 | 		while ((rbuf[len - 1] == '\r') || (rbuf[len - 1] == '\n'))
 89 | 			len--;
 90 | 		printf("%d, %s\n", (int)len, rbuf);
 91 | 		if (!check_hex_line(rbuf, len))
 92 | 			break;
 93 | 		type = hex_to_int(rbuf + 7);
 94 | 		switch (type) {
 95 | 			case 4:
 96 | 				addr = lhex_to_int(rbuf + 9) * 0x10000;
 97 | 				printf("bump addr to 0x%08X\n", addr);
 98 | 				break;
 99 | 			case 0:
100 | 				dest_addr = addr + lhex_to_int(rbuf + 3);
101 | 				obuf[0] = 0x4c;
102 | 				obuf[1] = 0xfc;
103 | 				obuf[2] = hex_to_int(rbuf + 1) + 4;
104 | 				obuf[3] = dest_addr;
105 | 				obuf[4] = dest_addr >> 8;
106 | 				obuf[5] = dest_addr >> 16;
107 | 				obuf[6] = dest_addr >> 24;
108 | 				if (fwrite(obuf, 7, 1, ofp) != 1)
109 | 					goto output_err;
110 | 				for (i = 0; i < hex_to_int(rbuf + 1); i++) {
111 | 					obuf[0] = hex_to_int(rbuf + 9 + i * 2);
112 | 					if (fwrite(obuf, 1, 1, ofp) != 1)
113 | 						goto output_err;
114 | 				}
115 | 				break;
116 | 			case 1:
117 | 				if (fwrite("\x4e\xfc\x04\xff\xff\xff\xff", 7, 1, ofp) != 1)
118 | 					goto output_err;
119 | 				goto end;
120 | 			default:
121 | 				return -EINVAL;
122 | 		}
123 | 	}
124 | 
125 | 	puts("hex file formatting error");
126 | 	return -EINVAL;
127 | 
128 | output_err:
129 | 	puts("error on writing output file");
130 | 	return -EIO;
131 | 
132 | end:
133 | 	return 0;
134 | }
135 | 
136 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
  1 | 
  2 | 		    GNU GENERAL PUBLIC LICENSE
  3 | 		       Version 2, June 1991
  4 | 
  5 |  Copyright (C) 1989, 1991 Free Software Foundation, Inc.
  6 |                        51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  7 |  Everyone is permitted to copy and distribute verbatim copies
  8 |  of this license document, but changing it is not allowed.
  9 | 
 10 | 			    Preamble
 11 | 
 12 |   The licenses for most software are designed to take away your
 13 | freedom to share and change it.  By contrast, the GNU General Public
 14 | License is intended to guarantee your freedom to share and change free
 15 | software--to make sure the software is free for all its users.  This
 16 | General Public License applies to most of the Free Software
 17 | Foundation's software and to any other program whose authors commit to
 18 | using it.  (Some other Free Software Foundation software is covered by
 19 | the GNU Library General Public License instead.)  You can apply it to
 20 | your programs, too.
 21 | 
 22 |   When we speak of free software, we are referring to freedom, not
 23 | price.  Our General Public Licenses are designed to make sure that you
 24 | have the freedom to distribute copies of free software (and charge for
 25 | this service if you wish), that you receive source code or can get it
 26 | if you want it, that you can change the software or use pieces of it
 27 | in new free programs; and that you know you can do these things.
 28 | 
 29 |   To protect your rights, we need to make restrictions that forbid
 30 | anyone to deny you these rights or to ask you to surrender the rights.
 31 | These restrictions translate to certain responsibilities for you if you
 32 | distribute copies of the software, or if you modify it.
 33 | 
 34 |   For example, if you distribute copies of such a program, whether
 35 | gratis or for a fee, you must give the recipients all the rights that
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 38 | rights.
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 58 | modification follow.
 59 | 
 60 | 		    GNU GENERAL PUBLIC LICENSE
 61 |    TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
 62 | 
 63 |   0. This License applies to any program or other work which contains
 64 | a notice placed by the copyright holder saying it may be distributed
 65 | under the terms of this General Public License.  The "Program", below,
 66 | refers to any such program or work, and a "work based on the Program"
 67 | means either the Program or any derivative work under copyright law:
 68 | that is to say, a work containing the Program or a portion of it,
 69 | either verbatim or with modifications and/or translated into another
 70 | language.  (Hereinafter, translation is included without limitation in
 71 | the term "modification".)  Each licensee is addressed as "you".
 72 | 
 73 | Activities other than copying, distribution and modification are not
 74 | covered by this License; they are outside its scope.  The act of
 75 | running the Program is not restricted, and the output from the Program
 76 | is covered only if its contents constitute a work based on the
 77 | Program (independent of having been made by running the Program).
 78 | Whether that is true depends on what the Program does.
 79 | 
 80 |   1. You may copy and distribute verbatim copies of the Program's
 81 | source code as you receive it, in any medium, provided that you
 82 | conspicuously and appropriately publish on each copy an appropriate
 83 | copyright notice and disclaimer of warranty; keep intact all the
 84 | notices that refer to this License and to the absence of any warranty;
 85 | and give any other recipients of the Program a copy of this License
 86 | along with the Program.
 87 | 
 88 | You may charge a fee for the physical act of transferring a copy, and
 89 | you may at your option offer warranty protection in exchange for a fee.
 90 | 
 91 |   2. You may modify your copy or copies of the Program or any portion
 92 | of it, thus forming a work based on the Program, and copy and
 93 | distribute such modifications or work under the terms of Section 1
 94 | above, provided that you also meet all of these conditions:
 95 | 
 96 |     a) You must cause the modified files to carry prominent notices
 97 |     stating that you changed the files and the date of any change.
 98 | 
 99 |     b) You must cause any work that you distribute or publish, that in
100 |     whole or in part contains or is derived from the Program or any
101 |     part thereof, to be licensed as a whole at no charge to all third
102 |     parties under the terms of this License.
103 | 
104 |     c) If the modified program normally reads commands interactively
105 |     when run, you must cause it, when started running for such
106 |     interactive use in the most ordinary way, to print or display an
107 |     announcement including an appropriate copyright notice and a
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109 |     a warranty) and that users may redistribute the program under
110 |     these conditions, and telling the user how to view a copy of this
111 |     License.  (Exception: if the Program itself is interactive but
112 |     does not normally print such an announcement, your work based on
113 |     the Program is not required to print an announcement.)
114 | 
115 | These requirements apply to the modified work as a whole.  If
116 | identifiable sections of that work are not derived from the Program,
117 | and can be reasonably considered independent and separate works in
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119 | sections when you distribute them as separate works.  But when you
120 | distribute the same sections as part of a whole which is a work based
121 | on the Program, the distribution of the whole must be on the terms of
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124 | 
125 | Thus, it is not the intent of this section to claim rights or contest
126 | your rights to work written entirely by you; rather, the intent is to
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128 | collective works based on the Program.
129 | 
130 | In addition, mere aggregation of another work not based on the Program
131 | with the Program (or with a work based on the Program) on a volume of
132 | a storage or distribution medium does not bring the other work under
133 | the scope of this License.
134 | 
135 |   3. You may copy and distribute the Program (or a work based on it,
136 | under Section 2) in object code or executable form under the terms of
137 | Sections 1 and 2 above provided that you also do one of the following:
138 | 
139 |     a) Accompany it with the complete corresponding machine-readable
140 |     source code, which must be distributed under the terms of Sections
141 |     1 and 2 above on a medium customarily used for software interchange; or,
142 | 
143 |     b) Accompany it with a written offer, valid for at least three
144 |     years, to give any third party, for a charge no more than your
145 |     cost of physically performing source distribution, a complete
146 |     machine-readable copy of the corresponding source code, to be
147 |     distributed under the terms of Sections 1 and 2 above on a medium
148 |     customarily used for software interchange; or,
149 | 
150 |     c) Accompany it with the information you received as to the offer
151 |     to distribute corresponding source code.  (This alternative is
152 |     allowed only for noncommercial distribution and only if you
153 |     received the program in object code or executable form with such
154 |     an offer, in accord with Subsection b above.)
155 | 
156 | The source code for a work means the preferred form of the work for
157 | making modifications to it.  For an executable work, complete source
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169 | access to copy the source code from the same place counts as
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171 | compelled to copy the source along with the object code.
172 | 
173 |   4. You may not copy, modify, sublicense, or distribute the Program
174 | except as expressly provided under this License.  Any attempt
175 | otherwise to copy, modify, sublicense or distribute the Program is
176 | void, and will automatically terminate your rights under this License.
177 | However, parties who have received copies, or rights, from you under
178 | this License will not have their licenses terminated so long as such
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180 | 
181 |   5. You are not required to accept this License, since you have not
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183 | distribute the Program or its derivative works.  These actions are
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185 | modifying or distributing the Program (or any work based on the
186 | Program), you indicate your acceptance of this License to do so, and
187 | all its terms and conditions for copying, distributing or modifying
188 | the Program or works based on it.
189 | 
190 |   6. Each time you redistribute the Program (or any work based on the
191 | Program), the recipient automatically receives a license from the
192 | original licensor to copy, distribute or modify the Program subject to
193 | these terms and conditions.  You may not impose any further
194 | restrictions on the recipients' exercise of the rights granted herein.
195 | You are not responsible for enforcing compliance by third parties to
196 | this License.
197 | 
198 |   7. If, as a consequence of a court judgment or allegation of patent
199 | infringement or for any other reason (not limited to patent issues),
200 | conditions are imposed on you (whether by court order, agreement or
201 | otherwise) that contradict the conditions of this License, they do not
202 | excuse you from the conditions of this License.  If you cannot
203 | distribute so as to satisfy simultaneously your obligations under this
204 | License and any other pertinent obligations, then as a consequence you
205 | may not distribute the Program at all.  For example, if a patent
206 | license would not permit royalty-free redistribution of the Program by
207 | all those who receive copies directly or indirectly through you, then
208 | the only way you could satisfy both it and this License would be to
209 | refrain entirely from distribution of the Program.
210 | 
211 | If any portion of this section is held invalid or unenforceable under
212 | any particular circumstance, the balance of the section is intended to
213 | apply and the section as a whole is intended to apply in other
214 | circumstances.
215 | 
216 | It is not the purpose of this section to induce you to infringe any
217 | patents or other property right claims or to contest validity of any
218 | such claims; this section has the sole purpose of protecting the
219 | integrity of the free software distribution system, which is
220 | implemented by public license practices.  Many people have made
221 | generous contributions to the wide range of software distributed
222 | through that system in reliance on consistent application of that
223 | system; it is up to the author/donor to decide if he or she is willing
224 | to distribute software through any other system and a licensee cannot
225 | impose that choice.
226 | 
227 | This section is intended to make thoroughly clear what is believed to
228 | be a consequence of the rest of this License.
229 | 
230 |   8. If the distribution and/or use of the Program is restricted in
231 | certain countries either by patents or by copyrighted interfaces, the
232 | original copyright holder who places the Program under this License
233 | may add an explicit geographical distribution limitation excluding
234 | those countries, so that distribution is permitted only in or among
235 | countries not thus excluded.  In such case, this License incorporates
236 | the limitation as if written in the body of this License.
237 | 
238 |   9. The Free Software Foundation may publish revised and/or new versions
239 | of the General Public License from time to time.  Such new versions will
240 | be similar in spirit to the present version, but may differ in detail to
241 | address new problems or concerns.
242 | 
243 | Each version is given a distinguishing version number.  If the Program
244 | specifies a version number of this License which applies to it and "any
245 | later version", you have the option of following the terms and conditions
246 | either of that version or of any later version published by the Free
247 | Software Foundation.  If the Program does not specify a version number of
248 | this License, you may choose any version ever published by the Free Software
249 | Foundation.
250 | 
251 |   10. If you wish to incorporate parts of the Program into other free
252 | programs whose distribution conditions are different, write to the author
253 | to ask for permission.  For software which is copyrighted by the Free
254 | Software Foundation, write to the Free Software Foundation; we sometimes
255 | make exceptions for this.  Our decision will be guided by the two goals
256 | of preserving the free status of all derivatives of our free software and
257 | of promoting the sharing and reuse of software generally.
258 | 
259 | 			    NO WARRANTY
260 | 
261 |   11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
262 | FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
263 | OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
264 | PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
265 | OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
266 | MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
267 | TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
268 | PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
269 | REPAIR OR CORRECTION.
270 | 
271 |   12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
272 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
273 | REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
274 | INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
275 | OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
276 | TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
277 | YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
278 | PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
279 | POSSIBILITY OF SUCH DAMAGES.
280 | 
281 | 		     END OF TERMS AND CONDITIONS
282 | 
283 | 	    How to Apply These Terms to Your New Programs
284 | 
285 |   If you develop a new program, and you want it to be of the greatest
286 | possible use to the public, the best way to achieve this is to make it
287 | free software which everyone can redistribute and change under these terms.
288 | 
289 |   To do so, attach the following notices to the program.  It is safest
290 | to attach them to the start of each source file to most effectively
291 | convey the exclusion of warranty; and each file should have at least
292 | the "copyright" line and a pointer to where the full notice is found.
293 | 
294 |     <one line to give the program's name and a brief idea of what it does.>
295 |     Copyright (C) <year>  <name of author>
296 | 
297 |     This program is free software; you can redistribute it and/or modify
298 |     it under the terms of the GNU General Public License as published by
299 |     the Free Software Foundation; either version 2 of the License, or
300 |     (at your option) any later version.
301 | 
302 |     This program is distributed in the hope that it will be useful,
303 |     but WITHOUT ANY WARRANTY; without even the implied warranty of
304 |     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
305 |     GNU General Public License for more details.
306 | 
307 |     You should have received a copy of the GNU General Public License
308 |     along with this program; if not, write to the Free Software
309 |     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
310 | 
311 | 
312 | Also add information on how to contact you by electronic and paper mail.
313 | 
314 | If the program is interactive, make it output a short notice like this
315 | when it starts in an interactive mode:
316 | 
317 |     Gnomovision version 69, Copyright (C) year name of author
318 |     Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
319 |     This is free software, and you are welcome to redistribute it
320 |     under certain conditions; type `show c' for details.
321 | 
322 | The hypothetical commands `show w' and `show c' should show the appropriate
323 | parts of the General Public License.  Of course, the commands you use may
324 | be called something other than `show w' and `show c'; they could even be
325 | mouse-clicks or menu items--whatever suits your program.
326 | 
327 | You should also get your employer (if you work as a programmer) or your
328 | school, if any, to sign a "copyright disclaimer" for the program, if
329 | necessary.  Here is a sample; alter the names:
330 | 
331 |   Yoyodyne, Inc., hereby disclaims all copyright interest in the program
332 |   `Gnomovision' (which makes passes at compilers) written by James Hacker.
333 | 
334 |   <signature of Ty Coon>, 1 April 1989
335 |   Ty Coon, President of Vice
336 | 
337 | This General Public License does not permit incorporating your program into
338 | proprietary programs.  If your program is a subroutine library, you may
339 | consider it more useful to permit linking proprietary applications with the
340 | library.  If this is what you want to do, use the GNU Library General
341 | Public License instead of this License.
342 | 


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