94 Commits

Author	SHA1	Message	Date
Chris Pressey	92b1cfeefb	Implement tail-call optimization.	2019-10-22 12:23:15 +01:00
Chris Pressey	44d97c33a2	Better generation of code at tail of routines.	2019-10-22 11:37:00 +01:00
Chris Pressey	2e2e80664e	Forbid nested with interrupts blocks, and more refactoring.	2019-05-14 15:01:10 +01:00
Chris Pressey	3f666f4385	Add reset instruction; much refactoring.	2019-05-14 08:56:35 +01:00
Chris Pressey	b19267d3ba	Checkpoint import of changes for version 0.19.	2019-04-08 11:50:54 +01:00
Chris Pressey	35a1053439	Support more modes on add and sub.	2018-12-12 10:34:25 +00:00
Chris Pressey	2803aa2d05	Add failing tests for add and sub on locations other than a.	2018-12-12 10:11:16 +00:00
Chris Pressey	d1a29709f2	Add example test program for cmp-against-literal-word. Fix it.	2018-12-12 09:09:45 +00:00
Chris Pressey	97e6e619ff	cmp can compare against a literal word.	2018-12-12 09:01:46 +00:00
Chris Pressey	94ee042a1e	Fix order of operands in word-sized cmp.	2018-11-27 13:12:55 +00:00
Chris Pressey	dcc944d732	If add and sub can work on words, then cmp can work on words too.	2018-11-23 23:00:41 +00:00
Chris Pressey	e74c7f2b31	Initial attempt at 16-bit compare. Not super well tested yet.	2018-11-23 22:09:28 +00:00
Chris Pressey	38119dbe29	Convert all tests to new syntax.	2018-09-07 22:55:54 +01:00
Chris Pressey	b63bcfcd2b	Begin introducing shortcut syntax for nested saves.	2018-09-07 09:36:51 +01:00
Chris Pressey	4bba75857f	--output cmdline argument, serialize() returns an array of bytes.	2018-09-06 16:18:41 +01:00
Chris Pressey	8091c45a9a	Fix test which is misleading due to the way the appliance works.	2018-05-08 12:14:30 +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	89fa8361a8	Remove --prelude, reform and document --output-formats.	2018-04-23 13:18:01 +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	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	27df0d27db	Optimize away RTS and JMP when possible. Fallthru stuff done.	2018-04-05 14:10:04 +01:00
Chris Pressey	fa1b0cfae1	Support branching and looping on the n flag.	2018-03-29 14:45:28 +01:00
Chris Pressey	b9fb26320c	Add some failing tests for looping on the n flag.	2018-03-29 13:33:06 +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	adb53f7a04	Almost compile for loops correctly.	2018-03-14 15:33:11 +00:00
Chris Pressey	72efecbb1a	Support different preludes for different archs (c64 and vic20 now.)	2018-03-06 17:00:39 +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	7a024f3062	Compile static storage location access.	2018-02-09 16:13:09 +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	ca1c877a60	Support indirect refs in st, e.g. st a, [ptr] + y.	2018-02-09 11:23:18 +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	b4f5d60ad3	I think it should actually look like this!	2018-02-06 17:00:04 +00:00
Chris Pressey	ed1ed3eb5d	Always analyze before compiling.	2018-02-06 16:14:44 +00:00
Chris Pressey	70ecd52e8a	Retain some syntax compatibility: make table a postfix operator.	2018-02-06 11:34:21 +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	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	b29716fccf	Constraints for vector come immediately after the type expression.	2018-02-02 17:16:31 +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	f9dc730f88	copy []+y, a to indirectly read byte into the a register.	2017-12-13 16:11:02 +00:00