245 Commits

Author	SHA1	Message	Date
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
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	7c8f113c07	Properly store address (not contents) of routine into vector table.	2018-02-07 13:56:17 +00:00
Chris Pressey	6c1c1cb153	Include final RTS when emitting trampolines for indirect calls.	2018-02-07 11:11:14 +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	9778e083c1	Move test, add test, add assertion.	2018-02-06 11:52:50 +00:00
Chris Pressey	70ecd52e8a	Retain some syntax compatibility: make table a postfix operator.	2018-02-06 11:34:21 +00:00
Chris Pressey	44ee8efbef	When backpatching constraints, don't strip ones we've already done.	2018-02-06 10:28:41 +00:00
Chris Pressey	612ae588f7	Add some tests, fix some bugs, show that one bug remains.	2018-02-06 10:05:56 +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	74f8675761	Start of typedef support.	2018-02-05 18:12:48 +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	15072eff52	The evaluator doesn't add much and keeps falling behind; remove it.	2018-02-05 13:17:23 +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	bbd3a84c00	Retain silly 'name inside the type' syntax (a la C) for now.	2018-02-05 11:18:35 +00:00
Chris Pressey	a082aee001	NOt 100% sure it's correct, but it seems close.	2018-02-02 17:56:50 +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	eb1974eb8a	Vector tables can be parsed.	2018-02-02 17:18:25 +00:00
Chris Pressey	b29716fccf	Constraints for vector come immediately after the type expression.	2018-02-02 17:16:31 +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	f9dc730f88	copy []+y, a to indirectly read byte into the a register.	2017-12-13 16:11:02 +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	75cc1f6b25	Factor out utility method for selecting addressing mode.	2017-12-13 12:14:26 +00:00
Chris Pressey	f87bcf5ee4	Initial work on initialized byte tables.	2017-12-12 16:41:49 +00:00
Chris Pressey	50390b0787	Can copy a literal word to a word table.	2017-12-12 16:04:59 +00:00
Chris Pressey	63f75a26b4	Initialized word type memory locations.	2017-12-12 15:34:51 +00:00
Chris Pressey	4854077cce	Correctly analyze repeat { ... } forever loops.	2017-12-12 15:18:59 +00:00
Chris Pressey	0194d37bbd	forward modifier on location expression, instead of assign.	2017-12-12 14:23:34 +00:00
Chris Pressey	b7b28830d7	Introducing a new pseudo-opcode is rarely an elegant solution.	2017-12-12 14:09:17 +00:00
Chris Pressey	dbbd99ffe5	Change how backpatching instructions is implemented.	2017-12-12 13:54:35 +00:00
Chris Pressey	19dd089a03	Allow call and goto routines defined further down in the source.	2017-12-12 13:17:00 +00:00
Chris Pressey	45bc4bd0a0	Tighten assumption when comparing LocationRefs.	2017-12-12 12:54:16 +00:00