220 Commits

Author	SHA1	Message	Date
Chris Pressey	eb4ed6a6bc	Extract locations from context appropriately. All tests pass.	2018-04-25 16:58:21 +01:00
Chris Pressey	01e3ab00aa	Make tests pass.	2018-04-25 13:40:39 +01:00
Chris Pressey	4986454733	Support save'ing user-defined locations.	2018-04-25 13:27:47 +01:00
Chris Pressey	07541d7913	Compile code for saving a, x, or y on the stack.	2018-04-25 13:15:53 +01:00
Chris Pressey	80c46485f1	Saving anything except a trashes a.	2018-04-25 13:06:11 +01:00
Chris Pressey	4d1f9d0f3c	First cut at implementing save. Only the most basic tests though.	2018-04-19 13:18:52 +01:00
Chris Pressey	bc91ef1602	Compile byte-table add, sub, cmp, and, or, xor, shl, shr, inc, dec.	2018-04-18 16:32:12 +01:00
Chris Pressey	5fcbfa1d21	Analyze reads and updates of tables.	2018-04-18 15:45:47 +01:00
Chris Pressey	0c22944afc	Able to parse, but not yet able to analyze, other table accesses.	2018-04-18 14:21:03 +01:00
Chris Pressey	e565234d28	Support for shl foo and shr foo where foo is a byte storage.	2018-04-18 12:01:53 +01:00
Chris Pressey	3c7d95a724	Support for copy [ptra]+y, [ptrb]+y to indirect LDA indirect STA	2018-04-18 10:57:57 +01:00
Chris Pressey	70247e0e44	Generate zero-page code for and, or, and xor, when possible.	2018-04-17 17:58:26 +01:00
Chris Pressey	475584769d	Add more test cases.	2018-04-06 14:08:09 +01:00
Chris Pressey	5f64113484	1-line bugfix. Now the optimizer does do the expected good job.	2018-04-06 13:27:40 +01:00
Chris Pressey	27df0d27db	Optimize away RTS and JMP when possible. Fallthru stuff done.	2018-04-05 14:10:04 +01:00
Chris Pressey	2ca843ece7	Begin hooking the fallthru analysis up to the compilation phase.	2018-04-05 10:52:14 +01:00
Chris Pressey	ac24f98dd3	Vastly simplify the fallthru analysis algorithm.	2018-04-05 09:57:14 +01:00
Chris Pressey	7fa54f53cb	Serialize main first. However, this could use a fresh approach.	2018-04-04 17:55:59 +01:00
Chris Pressey	9c68b6a7e0	Serialize routines with in() sets first, and in the right order.	2018-04-04 17:49:50 +01:00
Chris Pressey	cab84b8ebe	Change the serialization format to be (hopefully) clearer.	2018-04-04 17:05:48 +01:00
Chris Pressey	efe8859209	Find the longest chain of routines in R and remove it.	2018-04-04 16:54:12 +01:00
Chris Pressey	b1bcc21ffc	Go slightly further with the serialization.	2018-04-04 16:22:14 +01:00
Chris Pressey	30e839033c	First cut at serialization of fallthru-optimized routines.	2018-04-04 15:09:48 +01:00
Chris Pressey	e39dbf68ed	Call it fall_in_map.	2018-04-04 14:16:49 +01:00
Chris Pressey	448849ac4b	Successfully break cycle.	2018-04-04 14:01:17 +01:00
Chris Pressey	50433ac860	Find cycles in fallthru map. Try to break them; not right, yet.	2018-04-04 13:37:32 +01:00
Chris Pressey	a0d3ea8167	Add a dedicated module for a dedicated FallthruAnalyzer.	2018-04-04 11:09:39 +01:00
Chris Pressey	237a8b5b39	Lessen dependence on the internals of ParsingContext.	2018-03-29 17:31:14 +01:00
Chris Pressey	a759f4414b	Make tests pass again.	2018-03-29 16:50:07 +01:00
Chris Pressey	8f1e35fb39	Add some tests, some failing, for expected fallthru maps.	2018-03-29 16:44:06 +01:00
Chris Pressey	b33998cddc	First cut at building fallthru map. Needs tests.	2018-03-29 15:07:44 +01:00
Chris Pressey	fa1b0cfae1	Support branching and looping on the n flag.	2018-03-29 14:45:28 +01:00
Chris Pressey	ebe53f540c	Fix bug when zero page address was $00.	2018-03-29 11:46:56 +01:00
Chris Pressey	eadf1eb4ae	A byte or word table can be initialized with a list of constants.	2018-03-29 11:09:02 +01:00
Chris Pressey	2f513f7291	Initial support for initializing byte tables with list of bytes.	2018-03-29 10:45:18 +01:00
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