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Author SHA1 Message Date
Michael Martin
60f03a34af Improvements to c64_0.oph startup/teardown code 
16 additional bytes from the zero page are now available; the ZP
locations from $02-$8F are now free for your program's use.

Approximately 128 additional bytes in main RAM are now available,
giving you free reign from $0800-$CFFF. Zero Page backup is now
handled underneath the KERNAL's ROM, with the program epilogue
safely handling swapping out the KERNAL for the duration of the
switch. (IRQs are disabled, and NMI handling code is replicated
and modified to not hurt anything.)

Program exit is now handled by keyboard buffer and jumping
through BASIC's warm reset vector. This technique lets programs
play more nicely with PUCRUNCH and onefilers (which otherwise
often confused BASIC as the BASIC prologue would change as part
of decompression or link-loading).
 2014-05-14 07:33:07 -07:00
Michael Martin
5b64c9701e Refactor the label mapper to be more like the lister. 2014-05-14 05:56:59 -07:00
Michael Martin
bac908bff5 Much prettier label map files 2014-05-09 23:55:56 -07:00
Michael Martin
70f93b22eb Rework label map collection 
This uses a pass to interrogate the system for locations, then dumps
those out instead. It handles includes, anonymous labels, and basic
macros, but it does so in a somewhat ugly way. This data can be
readily abbreviated and should also be re-sorted.
 2014-05-09 23:11:09 -07:00
Cat's Eye Technologies
c0bf2e98b7 A very, *very* poor-man's version of label<->address dump. Ugh! 2014-03-24 12:32:17 +00:00
Michael C. Martin
83b8433b77 Merge pull request #20 from gardners/master 
INW/DEW addressing modes
 2014-03-23 21:20:36 -07:00
gardners
97ea228fb7 remove LF added during conflict resolution. 2014-03-23 16:55:04 +10:30
gardners
d407791aa9 Merge github.com:michaelcmartin/Ophis into temp 2014-03-23 16:53:39 +10:30
gardners
a7994f9e85 4502 instructions INW and DEW are Zero Page, not Absolute 2014-03-23 16:51:01 +10:30
Michael Martin
42f01f7cd6 Bump minor version number and copyright dates 2014-03-22 22:09:11 -07:00
Michael Martin
3f13609932 Post-merge adjustments to 4502 patch. 2014-03-22 22:03:06 -07:00
Michael C. Martin
88c7214950 Merge pull request #19 from gardners/master 
Add support for 4502/4510 CPU from Commodore 65
 2014-03-22 22:02:56 -07:00
gardners
adf965fc9d fix SBX (ZeroPage), Z for 4502 2014-02-08 02:56:41 +10:30
gardners
bcfd08c750 Fix 16-bit immediate mode. 2014-02-08 02:55:26 +10:30
gardners
dcc37f5751 Implement test for 4502 extensions. 
Fix numerous bugs revealed through tests, some more remain.
 2014-02-08 02:51:42 +10:30
gardners
591fc2fe35 make addressing mode cooercion work with varying addressing mode 
lists.
 2014-02-08 02:19:14 +10:30
gardners
5c162d2407 restore branch expansion for non-4502 targets 2014-02-08 01:59:42 +10:30
gardners
8152590946 update readme to indicate 4502 support 2014-02-07 20:55:19 +10:30
gardners
6856da1bbf fix various bugs with 4502 assembly. 2014-02-07 20:52:11 +10:30
gardners
5c4b23cbee fix 16-bit branch out-by-one error 2014-02-07 20:23:56 +10:30
gardners
dec3106744 implement new 4510 addressing modes. 
promote relative branches to 16-bit when required.
 2014-02-07 20:22:06 +10:30
gardners
c4be540f49 add 4502 option to Ophis command line. 2014-02-06 22:23:28 +10:30
gardners
ccef1b663f update Opcodes.py to include 4502 opcodes 2014-02-06 22:20:24 +10:30
gardners
7686b21396 update addressing modes. Add 4502 to chipsets.txt 2014-02-06 22:19:38 +10:30
gardners
45e79d5583 add 4502 opcode table. 2014-02-06 22:06:40 +10:30
Michael Martin
364b39edfb First draft of listfile support. 
The .listfile pragma and the -l command line option will select the
output file for the listing.
 2013-04-13 19:57:24 -07:00
Michael Martin
e5ac21f0f9 Second attempt at implementation of the BBXn instructions for Rockwell 65c02 chips. 
Reliable technical documentation for how these instructions are decoded is a
little thin on the ground online, so some of this implementation is still
speculative.
 2013-01-27 20:18:08 -08:00
Michael C. Martin
1c7174e696 Merge pull request #14 from catseye/fix-templabelcount 
Declare templabelcount as a global in atom().
 2013-01-10 22:25:03 -08:00
Michael C. Martin
c25047ca66 Merge pull request #17 from catseye/exit-code-1-on-error 
Exit with exit code 1 when errors occurred
 2013-01-10 22:18:23 -08:00
Cat's Eye Technologies
5fc504c6c1 Exit with exit code 1 if there were errors, 0 otherwise. 2012-10-25 10:51:39 +01:00
Cat's Eye Technologies
0b020a827b Add missing 'sys.' and remove unused module import. 2012-08-03 20:13:00 -05:00
Cat's Eye Technologies
45784e9b95 Declare templabelcount as a global in atom(). 2012-07-28 13:34:51 -05:00
Michael Martin
4ad16be245 Put tools under src 2012-06-16 02:07:02 -07:00
Michael Martin
ae59cbf3c4 Remove outdated website data 2012-06-16 02:05:45 -07:00
Michael Martin
5362a635c8 Fix up some typos in meta text. 2012-06-16 01:37:55 -07:00
Michael Martin
9ef2b91e9e packaging for 2.0 release 2012-06-13 00:24:21 -07:00
Michael Martin
55d7344cc7 PDF version of manual 2012-06-13 00:07:10 -07:00
Michael Martin
0faae3f5b4 Update manuals 2012-06-12 23:13:55 -07:00
Michael Martin
51583ce5e0 Remind git about binary files and not to mangle them. 2012-06-12 19:11:34 -07:00
Michael Martin
7f650e787d Fix the bugs the test suite found 
- .require now tracks absolute paths of loaded files
 - stricter checking of .incbin arguments
 - fix charmap reset directive
 - Allow register names (a, x, y) as labels, with warning
 - Allow opcode names as labels, with warning
 2012-06-12 06:29:03 -07:00
Michael Martin
10c3b46996 Finish up the test suite 
Quite a few tests fail; that'll need fixing.
 2012-06-12 06:29:03 -07:00
Michael Martin
926eef2287 Many more unit tests. 
- Labels
 - Expressions
 - Macros
 - Outline for remaining tests (compilation units, segments, scoping)
 2012-06-10 22:16:24 -07:00
Michael Martin
382a6a218b Set STDOUT to binary mode on Windows if needed 2012-06-10 18:53:49 -07:00
Michael Martin
ffd96a8c2f Update documentation. 2012-06-09 03:21:33 -07:00
Michael Martin
07f807d680 Documentation and examples reorganization 2012-06-08 23:41:16 -07:00
Michael Martin
cc9acf3ce4 Bugfix: Let Collapse Pass reverse collapses 
This can happen if a branch extender pass shifts a load's target
label past the zero-page boundary.
 2012-06-08 22:23:42 -07:00
Michael Martin
47be777884 Test suite: new tests for basic I/O and binary transforms 2012-06-08 21:50:28 -07:00
Michael Martin
6e30cc4153 Wide instruction format for 65c02 2012-06-08 21:45:38 -07:00
Michael Martin
e44ad61af9 Improved test script 
This script requires Python 2.4, for the subprocess module.
 2012-06-08 02:49:29 -07:00
Michael Martin
23700276a6 Introduce wide-mode override opcodes. 
This solves the --no-collapse problem by letting you force
Absolute mode on an instruction by instruction bases, which is
usually going to be what you want anyway.
 2012-06-06 05:13:19 -07:00