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Author SHA1 Message Date
David Given 4546dd5f22 Massive grammar overhaul and refactor. Hacked in support for predicates, where 
instructions can be turned on and off based on their parameters. New lexer
using a lexer. Now quite a lot of the way towards being a real instruction
selector.
 2016-09-21 00:43:10 +02:00
David Given 2183c6c622 Run through clang-format. 2016-09-20 21:00:16 +02:00
David Given 03b7202e54 Strip out surplus files. Rewrite README. 2016-09-20 20:46:45 +02:00
David Given 5cb3fbb3d3 Import iburg. 2016-09-20 20:44:51 +02:00
David Given 13c117d15d Import iburg. 2016-09-20 20:37:16 +02:00
George Koehler b1d1b5e1f8 Fix bugs with memory allocation in ego. 
cf/cf_loop.c and share/put.c tried to read the next pointer in an
element of a linked list after freeing the element.  ud/ud_copy.c
tried to read beyond the end of the _defs_ array: it only has
_nrexpldefs_ elements, not _nrdefs_ elements.

These bugs caused core dumps on OpenBSD.  Its malloc() put _defs_ near
the end of a page, so reading beyond the end crossed into an unmapped
page.  Its free() wrote junk bytes and changed the next pointer to
0xdfdfdfdfdfdfdfdf.
 2016-09-09 23:37:43 -04:00
David Given f67c98e239 Distributions are a pain --- let's not bother any more. Instead, we just tag 
the repository and download a complete snapshot, old and ancient stuff and all.
 2016-09-02 23:00:38 +02:00
David Given 612e38f1c6 Remove the old make-based build system, plus some big chunks of horribly 
obsolete protomake build system.
 2016-09-02 22:17:51 +02:00
David Given 2b6d251dec Fix a fun bug where, every now again, ego would get its temporary files mangled 
and generate invalid calls to the optimisers.

Previously ego would generate a temporary file template that looked like
/tmp/ego.A.BB.XXXXXX, call mktemp() on it to randomise the XXXXXX, and then
replace A and BB with data.

However, it used strrchr to find the A and B. Which would fine, except when
mktemp produced an A or a B in the randomised part...

This code was written on 4 March 1991. I was 16.
 2016-08-22 23:53:01 +02:00
David Given 2a95b1c5e3 Forgot to check a file in. 2016-08-22 22:45:32 +02:00
David Given 5bae29a00c ego now builds and is used. 
This needed lots of refactoring to ego --- not all platforms have ego descr
files, and ego will just crash if you invoke it without one. I think originally
it was never intended that these platforms would be used at -O2 or above.

Plats now only specify the ego descr file if they have one.
 2016-08-21 22:01:19 +02:00
David Given 84ee7c9cc4 Fix linking bug where em_decode would generate binary data instead of text. 2016-08-21 20:27:52 +02:00
David Given 2b2bd93e44 Run through clang-format. 2016-08-21 20:08:05 +02:00
David Given 44b6421519 Run through clang-format. 2016-08-21 19:53:14 +02:00
David Given 671bf250f5 Run through clang-format. 2016-08-21 19:46:19 +02:00
David Given 918f300513 Run through clang-format. 2016-08-21 19:38:54 +02:00
David Given 1b66b63eae Run through clang-format. 2016-08-21 19:38:02 +02:00
David Given 3584ddb6e9 Push through clang-format. 2016-08-21 19:34:54 +02:00
David Given a4f136f999 Run through clang-format. 2016-08-21 18:51:36 +02:00
David Given 03a0b182c4 Push em_ego.c through clang-format before working on it. 2016-08-21 18:45:25 +02:00
David Given 53c9731036 aal doesn't build the ranlib table if you don't set -DAAL. 2016-08-20 14:04:46 +02:00
David Given f561b94b49 Print hex numbers actually properly this time. 2016-08-20 14:02:12 +02:00
David Given 7b8d9e2d0e Fix compiler warnings and 64bitisms. 2016-08-14 23:01:12 +02:00
David Given a42939df50 LED builds now. 2016-08-14 14:40:01 +02:00
David Given 4d24666432 Move util/data into modules/src/em_data, for consistency with the other 
modules.
 2016-08-14 14:09:38 +02:00
David Given 262c5fedcf Biggish refactor to break cycles; my build rules were full of them. cpm builds, 
which requires top and topgen.
 2016-08-14 01:39:40 +02:00
David Given 0d77cb8279 We can build our first C file. 2016-08-07 21:56:53 +02:00
David Given 5e84be70fd Massive ackbuilder refactor --- cleaner and more expressive. Lists 
are automatically flattened (leading to better build files), and the
list and filename functions are vastly more orthogonal.
 2016-08-04 23:51:19 +02:00
David Given b2bb4ce3b2 Builds libend (the simplest library). Becoming obvious I need to rework the way 
ackbuilder deals with lists.
 2016-07-30 00:39:22 +02:00
David Given 363d13cc2f C preprocessor; tabgen; now the pc86 boot.s builds using the ack 
toolchain.
 2016-07-29 00:22:49 +02:00
David Given f9c77fca03 Replace the hacky cflags variable with an equally hacky but vastly 
more useful magic vars variable.
 2016-07-27 00:10:15 +02:00
David Given cdeea836f2 Replaced the fairly complex environment code with a much simpler 
emitter object.
 2016-07-26 23:43:31 +02:00
David Given a8a9d1bbfa yacc, ncgg; platform ncg builds now. 2016-07-26 23:35:30 +02:00
David Given bff5c4019c Baby steps towards building a platform --- make the assembler work. 
Add ackbuilder support for C preprocessor files and yacc.
 2016-07-24 00:50:02 +02:00
David Given 2770a83837 More programs, more libraries. src/modules build files are now saner. 2016-07-23 00:30:31 +02:00
David Given 1fdc69fb97 cemcom.ansi now builds. 2016-07-19 23:43:14 +02:00
David Given 2d2497c318 ackbuilder rules files now require absolute paths in external variables 
(otherwise commands which change directory don't work).
 2016-07-18 23:16:27 +02:00
David Given bcf3408e36 More stuff builds; almost the C compiler now. 2016-07-14 23:54:13 +02:00
David Given d805052205 All the amisc binaries now build. 2016-06-19 09:32:45 +02:00
David Given 2af8568cc3 First draft at installables; not very satisfactory. make bugs with multiple 
output targets and parallelism?
 2016-06-16 05:26:44 +02:00
David Given 09554cb324 installable works, although it's a bit kludgy. Change the : separator to + 
because : is special in make and non of the others I could think of would work.
 2016-06-14 07:34:14 +02:00
David Given 605651776e We can build a real program now! 2016-06-12 20:59:43 +02:00
David Given 88bd7ce126 Remove defunct pmfiles. 
--HG--
branch : default-branch
 2016-06-03 13:56:50 +02:00
David Given ef8e6e25e0 Fix a whole pile of issues related to the failed attempt to increase 
the number of types of relocation possible in the object file. (Now,
hopefully, working.)

Also change the object serialiser/deserialiser to never try to read or
write raw structures; it's way safer this way and we don't need the
performance boost any more.

--HG--
branch : default-branch
 2016-03-18 21:46:55 +01:00
David Given fd7e9f9046 Fix an insidious 64-bitness bug which was causing incorrectly optimised code. 
--HG--
branch : default-branch
 2016-03-17 22:30:24 +01:00
David Given 7e964dd25e Raise the limit on ack.out relocation types by making the size of a 
relocation structure bigger. Bump ack.out magic number.

--HG--
branch : default-branch
 2016-03-14 21:08:55 +01:00
David Given ff0c78cc78 Merge from default. 
--HG--
branch : dtrg-videocore-branch-branch
 2016-03-13 21:13:09 +01:00
David Given 44b5d01525 Merge. 
--HG--
rename : util/ncgg/build.mk => util/cgg/build.mk
 2015-03-23 00:14:10 +01:00
David Given b146d2641c Fix a slightly mysterious dependency issue. 2015-03-23 00:09:41 +01:00
David Given 98ea849d03 Improve flex correctness. 2015-03-23 00:09:27 +01:00