Commit Graph

23 Commits

Author SHA1 Message Date
Michael C. Martin
14a37ca879 Massive code modernization spree.
Full PEP8 compliance. Also, booleans have been inserted where
they make sense (introduced in 2.3!) and I haven't knowingly
added anything that will break 2.3 compatibility.

At this point the code really doesn't look like it was written
ten years ago. Hooray!
2012-06-02 00:04:15 -07:00
Michael Martin
f83379287f Don't destroy the OptParser.
As long as we're not gratuitously breaking compatibility, this
cleanup isn't available in 2.3 and it's not like ophis runs long
enough for this to be an issue anyway.
2012-06-01 00:39:12 -07:00
Michael C. Martin
d955fe00a1 Switch to "new-style" classes, because come on.
Ophis was originally written for Python 2.1, and it kind of shows.
Python 2.3 introduced booleans and optparse, so there's no reason
to not use new-style classes.
2012-06-01 00:24:51 -07:00
Michael C. Martin
1bbb2f1f1b Braindead test script 2012-06-01 00:24:30 -07:00
Michael C. Martin
e47073bc1d New command-line system.
This is a full optparse-based parser for all the options we want
to have in Ophis 2.0, but the pass-disablers aren't working yet.

This also doesn't handle positional arguments the way we hope
to eventually; that will come later.

optparse is deprecated in 2.7, but its replacement isn't available
in any previous version of Python, so we avoid it so as to not
gratuitously break compatibility on older machines.

It would be nice to at least stay usable on stock Leopard Macs (2.5).
2012-06-01 00:09:25 -07:00
Michael C. Martin
eae4ea7dcd Extend .advance to allow a filler expression. 2012-05-30 20:45:37 -07:00
Michael Martin
e58d5ccaac Win32 installer.
Includes the py2exe script, the version of the MSVC++ runtime Python 2.7
needs, and an NSIS script to assemble the installables out of the checkout
tree.

NB: Even though MakeNSIS is multiplatform, it should only be run on
Windows, since otherwise the linebreaks in the README won't be
Notepad-friendly.
2012-05-30 08:32:52 -07:00
Michael C. Martin
57e663cf29 Remove spurious CRLFs 2012-05-29 18:24:20 -07:00
Michael C. Martin
af50326e39 Add the NOP Zero Page undocumented opcode.
This seems to be one of the preferred undocced ops in the Atari
2600 VCS development community.
2012-05-29 18:24:20 -07:00
Michael C. Martin
196cb47f05 Fix bug in pass manager that was making the branch extender too aggressive.
We need to let the zero-page collapser do as much work as it can before
we get bent out of shape about out-of-range branches.
2012-05-28 22:53:53 -07:00
Michael C. Martin
741390e955 Allow '-' as a filename to mean standard input or output.
As part of this change, all assembler chat is being pushed to
standard error, where it probably should have been in the first place.
Scripts and batchfiles that relied on capturing the output of Ophis
will need to capture stderr now instead.
2012-05-28 19:19:08 -07:00
Michael C. Martin
f8bc917601 A new 'correctness optimization': ExtendBranches.
This pass actually isn't an optimizer in that it produces larger
binaries when it triggers. However, the larger binaries created
will actually assemble properly.

The ExtendBranches pass detects Relative instructions (that is,
branches) that extend past the signed-8-bit range Relative instructions
permit, and replaces them with a branch-jump combination with identical
semantics.

Since this may be evidence of a program bug, Ophis will warn when
the optimization is triggered.

Due to similarities between this pass and UpdateLabels, both passes
have been refactored in passing.
2012-05-27 15:57:23 -07:00
Michael C. Martin
3184b22e41 Add backup files to .gitignore 2012-05-27 15:57:22 -07:00
Michael C. Martin
c1c102291c Remove the deprecated and incomplete compatibility mode for Perl65. 2012-05-27 15:57:10 -07:00
Michael C. Martin
1df8ad465d Major formatting fixes:
* No more tabs
 * Fix copyright notices to point at right files and name the license right
2012-05-06 20:06:28 -07:00
Michael C. Martin
d5ec7bdacd A simple distutils wrapper to make ophis a standalone program on a system. 2012-05-06 18:20:47 -07:00
Michael C. Martin
579747fc43 Merge pull request #2 from catseye/driver-script
Rewrite the driver script in Python; use os.path.realpath(). This should keep local copies working while still leaving the door open for distutils-based solutions like the original 1.0 had.
2012-04-25 21:19:01 -07:00
Cat's Eye Technologies
8c94910440 Rewrite the driver script in Python; use os.path.realpath(). 2011-12-19 13:41:09 -06:00
Michael C. Martin
00f8586be9 Merge pull request #1 from catseye/master
Fix misleading error message from .incbin and .charmapbin pragmas, add some bookkeeping
2011-12-17 19:34:01 -08:00
Cat's Eye Technologies
a1cc6db760 Catch IOError in .incbin and .charmapbin pragmas. 2011-12-09 14:24:12 -06:00
Cat's Eye Technologies
5392f4c2d4 Add .gitignore and minimal driver shell script. 2011-12-09 13:59:54 -06:00
Michael C. Martin
2c8dba2450 Initial import of the Ophis 1.0 distribution and supplemental material 2011-08-20 16:33:25 -07:00
Michael C. Martin
b78f3c614a Initial README commit 2011-08-20 16:11:17 -07:00