185 Commits

Author	SHA1	Message	Date
Chris Pressey	9b912de17c	Accessing zero-page with ld and st generates zero-page opcodes.	2018-03-29 10:31:42 +01:00
Chris Pressey	1f992f8dbd	Support of NOP opcode.	2018-03-28 14:52:16 +01:00
Chris Pressey	0093c7b7d9	First cut at support for targetting the Atari 2600.	2018-03-28 14:20:53 +01:00
Chris Pressey	bb0e7aa992	Track the gotos that we have encountered in a routine.	2018-03-27 17:27:09 +01:00
Chris Pressey	6744ad29a9	Beginnings of modularity.	2018-03-27 16:23:22 +01:00
Chris Pressey	d9e625db30	Clean up driver code, add filename to error messages.	2018-03-27 15:55:29 +01:00
Chris Pressey	3f0e36a67c	Add symbolic constants.	2018-03-27 12:36:33 +01:00
Chris Pressey	b91c3ed2f1	Add three more tests. Ensure they pass.	2018-03-26 17:40:43 +01:00
Chris Pressey	ceaae962d5	Make tests pass. Add two more tests towards completeness of spec.	2018-03-26 12:48:57 +01:00
Chris Pressey	96fbe03ce7	Make compilation tests pass.	2018-03-14 16:27:33 +00:00
Chris Pressey	adb53f7a04	Almost compile for loops correctly.	2018-03-14 15:33:11 +00:00
Chris Pressey	b79059faa4	Two seperate words looks better.	2018-03-14 09:51:24 +00:00
Chris Pressey	9a9db83fc6	Analyze the range in the for loop. All unit tests pass again.	2018-03-13 17:44:44 +00:00
Chris Pressey	7a3b52dc1e	More correct determination of tail position for purposes of goto.	2018-03-13 17:00:49 +00:00
Chris Pressey	689670a69e	Small bugfixes and changes.	2018-03-13 09:25:06 +00:00
Chris Pressey	994449ecb0	Make the loop variable unwriteable in the body of the "for" loop.	2018-03-08 17:41:42 +00:00
Chris Pressey	f73a2313bd	Add some failing tests for analyzing "for".	2018-03-08 17:17:49 +00:00
Chris Pressey	d815e05e0c	Syntax for "open-faced for loop".	2018-03-08 16:54:12 +00:00
Chris Pressey	bda0202dee	Confirm that AND clips the range and INC/DEC invalidate it.	2018-03-06 15:42:12 +00:00
Chris Pressey	1eaec602e3	The exception object now contains an AST node, renders name.	2018-03-06 14:39:47 +00:00
Chris Pressey	42cbd73a20	Show line numbers in static analysis errors (clumsily.)	2018-03-06 13:13:18 +00:00
Chris Pressey	e44c802314	Syntax errors have line numbers in them now.	2018-03-06 12:23:57 +00:00
Chris Pressey	9ad34ed34f	Refine the AST classes even more.	2018-03-06 10:43:23 +00:00
Chris Pressey	8a7e3aaebb	Flatten more.	2018-03-05 15:32:08 +00:00
Chris Pressey	1180d2fe2a	Attempt to flatten the code for generating code for copy.	2018-03-05 15:22:47 +00:00
Chris Pressey	c194808e64	Label the various cases for compiling a copy instruction.	2018-03-05 13:23:09 +00:00
Chris Pressey	c85159a9c0	Start trying to clean up the code for compiling copy.	2018-03-05 12:34:24 +00:00
Chris Pressey	b579e8b2eb	Refs have indexes. Instructions do not.	2018-03-05 12:19:27 +00:00
Chris Pressey	0a83d90515	Tighten structure of AST more.	2018-03-05 12:13:15 +00:00
Chris Pressey	4b43ba734e	Make AST more structured (borrowed from ALPACA.)	2018-03-05 11:55:06 +00:00
Chris Pressey	b42aa8b051	Fix error message.	2018-03-05 11:28:08 +00:00
Chris Pressey	d24e9fa2e1	I can no longer see a reason to require that it is a power of two.	2018-03-05 10:38:20 +00:00
Chris Pressey	42c4bed36e	Make tests pass.	2018-02-16 15:46:55 +00:00
Chris Pressey	0e0a3d552a	Implement Context.copy_range(), ranges for constants. Progress!	2018-02-14 16:35:19 +00:00
Chris Pressey	0687da80d5	Some headway on context.assert_in_range().	2018-02-14 15:54:57 +00:00
Chris Pressey	2897a04718	Get and set top of range of a location. Make AND do this to A reg.	2018-02-14 15:13:35 +00:00
Chris Pressey	93e2dada16	Check for table size (in parser, thus tests are for syntax.)	2018-02-14 13:53:22 +00:00
Chris Pressey	ab33331924	Associate a range with each meaningful storage location in context.	2018-02-14 13:31:03 +00:00
Chris Pressey	5fa8c69bd2	Don't fudge the name of IndexRefs; dig in to find the ref's name.	2018-02-13 17:17:27 +00:00
Chris Pressey	f6fa1ec7d2	Remove need for forward keyword in forward reference in copy.	2018-02-12 15:59:20 +00:00
Chris Pressey	08ec0e46a3	Remove the need for parens in vector (routine ...) table type.	2018-02-12 14:53:49 +00:00
Chris Pressey	e9d9c717bb	More statics in demo game.	2018-02-09 16:57:49 +00:00
Chris Pressey	7a024f3062	Compile static storage location access.	2018-02-09 16:13:09 +00:00
Chris Pressey	52fb1dc6b9	Inch toward compiling statics.	2018-02-09 14:44:41 +00:00
Chris Pressey	71cded0297	Move compiler towards being able to compile access to statics.	2018-02-09 14:13:39 +00:00
Chris Pressey	55331e9c54	Statics are always writeable. Statics are always meaningful.	2018-02-09 13:35:59 +00:00
Chris Pressey	b829836cdc	Ability to parse static definitions and look them up.	2018-02-09 12:33:45 +00:00
Chris Pressey	ca1c877a60	Support indirect refs in st, e.g. st a, [ptr] + y.	2018-02-09 11:23:18 +00:00
Chris Pressey	a7365731ca	Even if we goto another routine, we can't trash an output.	2018-02-08 16:37:40 +00:00
Chris Pressey	b20b664748	Implement the "union rule for trashes" when analyzing if blocks.	2018-02-08 14:04:51 +00:00