Chris Pressey
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ca1c877a60
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Support indirect refs in st, e.g. st a, [ptr] + y .
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2018-02-09 11:23:18 +00:00 |
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Chris Pressey
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f92e1f15bf
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Tired: copy [ptr]+y, a. Wired: ld a, [ptr]+y.
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2018-02-08 11:58:24 +00:00 |
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Chris Pressey
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34daad0e56
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Make ld parse to a IndexedRef or IndirectRef (latter still todo.)
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2018-02-08 11:04:11 +00:00 |
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Chris Pressey
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7c8f113c07
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Properly store address (not contents) of routine into vector table.
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2018-02-07 13:56:17 +00:00 |
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Chris Pressey
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6c1c1cb153
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Include final RTS when emitting trampolines for indirect calls.
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2018-02-07 11:11:14 +00:00 |
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Chris Pressey
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43b3a088b0
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Use a vector table in the demo game.
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2018-02-06 15:03:59 +00:00 |
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Chris Pressey
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a082aee001
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NOt 100% sure it's correct, but it seems close.
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2018-02-02 17:56:50 +00:00 |
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Chris Pressey
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4abedc0442
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Centralize helper, use it elsewhere.
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2018-02-02 17:05:15 +00:00 |
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Chris Pressey
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548905dce4
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Initialized byte tables need not have all 256 bytes initialized.
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2018-02-02 16:31:23 +00:00 |
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Chris Pressey
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f9dc730f88
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copy []+y, a to indirectly read byte into the a register.
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2017-12-13 16:11:02 +00:00 |
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Chris Pressey
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c7861d375c
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trash indicates a value is no longer considered meaningful.
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2017-12-13 15:23:06 +00:00 |
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Chris Pressey
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5f535c963e
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Subtract word (constant or memory location) from word memory location.
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2017-12-13 14:07:59 +00:00 |
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Chris Pressey
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75cc1f6b25
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Factor out utility method for selecting addressing mode.
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2017-12-13 12:14:26 +00:00 |
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Chris Pressey
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f87bcf5ee4
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Initial work on initialized byte tables.
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2017-12-12 16:41:49 +00:00 |
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Chris Pressey
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50390b0787
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Can copy a literal word to a word table.
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2017-12-12 16:04:59 +00:00 |
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Chris Pressey
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63f75a26b4
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Initialized word type memory locations.
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2017-12-12 15:34:51 +00:00 |
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Chris Pressey
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4854077cce
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Correctly analyze repeat { ... } forever loops.
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2017-12-12 15:18:59 +00:00 |
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Chris Pressey
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2216fcec17
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copy from word storage to word table and back, indexed by x or y.
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2017-12-11 12:02:48 +00:00 |
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Chris Pressey
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b86e7491d5
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Copy word to word table.
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2017-12-11 11:43:53 +00:00 |
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Chris Pressey
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bef1aba8ce
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Do not assume every label refers to a word-sized chunk of memory.
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2017-12-11 10:42:42 +00:00 |
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Chris Pressey
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84ca6c4e96
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Break the ground where we need to implement word table read/write.
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2017-12-08 15:53:18 +00:00 |
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Chris Pressey
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ad8e0647a4
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Use right endianness when copy ing literal word into storage.
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2017-12-07 16:49:43 +00:00 |
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Chris Pressey
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75cf18d3a2
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Add word (constant or memory loc) to pointer (unchecked for now).
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2017-12-07 14:14:43 +00:00 |
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Chris Pressey
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a4fd0e590b
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Adding a word memory location to another word memory location.
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2017-12-07 13:15:21 +00:00 |
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Chris Pressey
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92525fd482
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Adding a constant word to a memory location.
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2017-12-07 12:48:56 +00:00 |
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Chris Pressey
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d84566a880
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Write stored values, and read values, through pointers.
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2017-12-01 13:52:56 +00:00 |
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Chris Pressey
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32389e4422
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Require that the program does ^buf to get at the address of buf.
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2017-12-01 12:36:58 +00:00 |
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Chris Pressey
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a95cbb0f47
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Introduce IndirectRef and use it instead of adhoc 'copy[]+y' opcode.
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2017-12-01 11:44:40 +00:00 |
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Chris Pressey
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19a196f765
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Compile copy[]+y.
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2017-11-24 16:56:55 +00:00 |
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Chris Pressey
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c8c69a2a7d
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Fix problem with test case, and with serializing as zero page.
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2017-11-24 13:42:14 +00:00 |
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Chris Pressey
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e41dd1aa01
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Attempt to add Zero Page addressing; the emitter may need rethink.
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2017-11-24 13:09:10 +00:00 |
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Chris Pressey
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c91574186b
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First pass of buffer, pointer, copy b, [p] + y, indirect indexed.
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2017-11-24 12:35:36 +00:00 |
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Chris Pressey
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22cc7bfc11
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Support copy'ing a word constant to a word location. Joystick eg.
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2017-11-20 15:18:21 +00:00 |
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Chris Pressey
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e2daa33dc5
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Compile copy byte to byte and word to word.
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2016-06-16 11:10:03 -05:00 |
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Chris Pressey
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7b1ee60a73
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Initial value for locations: changed syntax, executes, compiles.
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2016-06-16 11:03:31 -05:00 |
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Chris Pressey
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0d3ac8c247
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{Low,High}AddressByte emittables to fix copy, make indirect call!
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2015-10-22 16:20:10 +01:00 |
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Chris Pressey
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0b2b5d904e
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Implement indirect JSRs with trampolines in theory; doesn't work.
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2015-10-22 15:45:16 +01:00 |
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Chris Pressey
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16450e06d5
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Compile goto's.
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2015-10-21 15:51:52 +01:00 |
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Chris Pressey
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16649042cb
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I kind of forgot that indirect JSR needs a trampoline first :/
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2015-10-20 13:15:21 +01:00 |
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Chris Pressey
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f16cb75677
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Fix compiler. All tests pass once again.
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2015-10-20 12:53:07 +01:00 |
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Chris Pressey
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2dc4dd988e
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Parse indirect calls, but break evaluator.
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2015-10-20 09:33:30 +01:00 |
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Chris Pressey
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98524e931a
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Vector and routine types are constructors with constraints now.
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2015-10-19 18:18:06 +01:00 |
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Chris Pressey
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04de73d04d
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Solve this by defining an Offset emittable.
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2015-10-19 08:55:47 +01:00 |
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Chris Pressey
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e3fe337730
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Interesting dead end we've got ourselves into here.
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2015-10-18 23:31:17 +01:00 |
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Chris Pressey
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645079f03a
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Implement 'with interrupts off'.
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2015-10-18 23:15:40 +01:00 |
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Chris Pressey
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a9bd8a3714
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Indexed access, + x / + y, at least for LDA and STA.
--HG--
rename : eg/screen.60p => eg/screen1.60p
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2015-10-18 18:32:20 +01:00 |
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Chris Pressey
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e1cf162a5b
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Refs have types.
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2015-10-18 17:23:01 +01:00 |
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Chris Pressey
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522c771208
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Add explicitly-addressed memory locations.
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2015-10-18 16:22:36 +01:00 |
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Chris Pressey
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49e42af953
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Implement if not and repeat forever .
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2015-10-18 15:32:28 +01:00 |
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Chris Pressey
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c5998ed240
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Compile repeat loops.
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2015-10-18 13:55:40 +01:00 |
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