86 Commits

Author	SHA1	Message	Date
Chris Pressey	1f992f8dbd	Support of NOP opcode.	2018-03-28 14:52:16 +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	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	adb53f7a04	Almost compile for loops correctly.	2018-03-14 15:33:11 +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	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	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	9ad34ed34f	Refine the AST classes even more.	2018-03-06 10:43:23 +00:00
Chris Pressey	0a83d90515	Tighten structure of AST more.	2018-03-05 12:13:15 +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	ab33331924	Associate a range with each meaningful storage location in context.	2018-02-14 13:31:03 +00:00
Chris Pressey	e9d9c717bb	More statics in demo game.	2018-02-09 16:57:49 +00:00
Chris Pressey	55331e9c54	Statics are always writeable. Statics are always meaningful.	2018-02-09 13:35:59 +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
Chris Pressey	3f1f3bf16e	Set a location as touched when trashed with a trash instruction.	2018-02-08 13:43:06 +00:00
Chris Pressey	f92e1f15bf	Tired: copy [ptr]+y, a. Wired: ld a, [ptr]+y.	2018-02-08 11:58:24 +00:00
Chris Pressey	34daad0e56	Make ld parse to a IndexedRef or IndirectRef (latter still todo.)	2018-02-08 11:04:11 +00:00
Chris Pressey	ed1ed3eb5d	Always analyze before compiling.	2018-02-06 16:14:44 +00:00
Chris Pressey	43b3a088b0	Use a vector table in the demo game.	2018-02-06 15:03:59 +00:00
Chris Pressey	c12a76e106	Make assertions more robust, in hopes of hunting down bugs.	2018-02-06 09:52:01 +00:00
Chris Pressey	0be721667a	Kind-of not-pretty syntax refactor to support adding typedefs.	2018-02-05 17:01:25 +00:00
Chris Pressey	20c824743e	Fix table access bug where index wasn't required to be initialized.	2018-02-05 12:35:19 +00:00
Chris Pressey	11d6c08369	In fact the 'src' should never (I think?) be 'touched'.	2018-02-05 12:08:33 +00:00
Chris Pressey	7dfd2cfe0c	Allow copying a routine directly into a vector table.	2018-02-05 12:04:28 +00:00
Chris Pressey	13e6654088	Executable types are compatible with other executable types.	2018-02-02 17:48:57 +00:00
Chris Pressey	0fff8e4f0a	Begin to implement vector tables, stuck at a type equality problem.	2018-02-02 17:45:07 +00:00
Chris Pressey	4abedc0442	Centralize helper, use it elsewhere.	2018-02-02 17:05:15 +00:00
Chris Pressey	548905dce4	Initialized byte tables need not have all 256 bytes initialized.	2018-02-02 16:31:23 +00:00
Chris Pressey	d69766afbe	Marginally more informative error message.	2017-12-14 11:54:39 +00:00
Chris Pressey	1d8f1af964	Fix bug in copy []+y, a. "Hero" no longer leaves a trail.	2017-12-13 17:00:21 +00:00
Chris Pressey	b477c5e786	Don't trash a in copy if a is the dest of the copy, for now.	2017-12-13 16:18:36 +00:00
Chris Pressey	c7861d375c	trash indicates a value is no longer considered meaningful.	2017-12-13 15:23:06 +00:00
Chris Pressey	5f535c963e	Subtract word (constant or memory location) from word memory location.	2017-12-13 14:07:59 +00:00
Chris Pressey	50390b0787	Can copy a literal word to a word table.	2017-12-12 16:04:59 +00:00
Chris Pressey	4854077cce	Correctly analyze repeat { ... } forever loops.	2017-12-12 15:18:59 +00:00
Chris Pressey	8dc44673fa	LocationRefs are equal if names/type are; this needed __str__ tho.	2017-12-12 12:45:47 +00:00
Chris Pressey	e46c6f6c6e	Improve error messaging yet more. Game kind of has game states now.	2017-12-12 09:59:43 +00:00
Chris Pressey	82e33ab476	Improve error messaging when constraints are exceeded.	2017-12-12 09:42:16 +00:00
Chris Pressey	aa5e4119da	Copy indexed location to location. All tests pass again.	2017-12-08 15:07:15 +00:00
Chris Pressey	689ed37f2e	Beginnings of implementing word tables. One test still fails.	2017-12-08 13:41:48 +00:00