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mirror of https://github.com/catseye/SixtyPical.git synced 2025-02-18 13:31:08 +00:00

105 Commits

Author SHA1 Message Date
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
Chris Pressey
60df162625 Refactor: common method to backpatch labels. 2017-12-12 12:51:19 +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
ec2e051518 Constraint sets may only contain labels, which are resolved late. 2017-12-11 17:49:02 +00:00
Chris Pressey
2216fcec17 copy from word storage to word table and back, indexed by x or y. 2017-12-11 12:02:48 +00:00
Chris Pressey
b86e7491d5 Copy word to word table. 2017-12-11 11:43:53 +00:00
Chris Pressey
bef1aba8ce Do not assume every label refers to a word-sized chunk of memory. 2017-12-11 10:42:42 +00:00
Chris Pressey
404f8c72a3 We really need to review how storage location labels are emitted. 2017-12-08 16:59:31 +00:00
Chris Pressey
84ca6c4e96 Break the ground where we need to implement word table read/write. 2017-12-08 15:53:18 +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
Chris Pressey
ad8e0647a4 Use right endianness when copying literal word into storage. 2017-12-07 16:49:43 +00:00
Chris Pressey
75cf18d3a2 Add word (constant or memory loc) to pointer (unchecked for now). 2017-12-07 14:14:43 +00:00
Chris Pressey
a4fd0e590b Adding a word memory location to another word memory location. 2017-12-07 13:15:21 +00:00
Chris Pressey
92525fd482 Adding a constant word to a memory location. 2017-12-07 12:48:56 +00:00
Chris Pressey
cf679b293a Ability to --debug analysis. Make 16-bit addition test pass. 2017-12-07 11:49:15 +00:00
Chris Pressey
97d00637d2 Initial work on adding 16-bit constants to a 16-bit location. 2017-12-07 11:31:46 +00:00
Chris Pressey
d84566a880 Write stored values, and read values, through pointers. 2017-12-01 13:52:56 +00:00
Chris Pressey
32389e4422 Require that the program does ^buf to get at the address of buf. 2017-12-01 12:36:58 +00:00
Chris Pressey
a95cbb0f47 Introduce IndirectRef and use it instead of adhoc 'copy[]+y' opcode. 2017-12-01 11:44:40 +00:00
Chris Pressey
19a196f765 Compile copy[]+y. 2017-11-24 16:56:55 +00:00
Chris Pressey
c8c69a2a7d Fix problem with test case, and with serializing as zero page. 2017-11-24 13:42:14 +00:00
Chris Pressey
e41dd1aa01 Attempt to add Zero Page addressing; the emitter may need rethink. 2017-11-24 13:09:10 +00:00
Chris Pressey
c91574186b First pass of buffer, pointer, copy b, [p] + y, indirect indexed. 2017-11-24 12:35:36 +00:00
Chris Pressey
42438dd97f Beginning of: buffers and pointers. 2017-11-24 11:30:20 +00:00
Chris Pressey
c33e6ef0e9 Assert that the loop variable is meaningful in repeat. Unit test. 2017-11-20 16:39:39 +00:00
Chris Pressey
22cc7bfc11 Support copy'ing a word constant to a word location. Joystick eg. 2017-11-20 15:18:21 +00:00
Chris Pressey
563aaeba47 Remove low/high byte operators until I've thought about it more. 2017-11-17 15:54:50 +00:00
Chris Pressey
9d6ca0b2b4 Low and high address operators, parsing and execution thereof. 2016-06-16 11:10:43 -05:00
Chris Pressey
e2daa33dc5 Compile copy byte to byte and word to word. 2016-06-16 11:10:03 -05:00
Chris Pressey
fc8c85e670 word types, with syntax and analysis thereof 2016-06-16 11:08:57 -05:00
Chris Pressey
007c81acad Split scanner off from parser module, into own module. 2016-06-16 11:04:03 -05:00
Chris Pressey
7b1ee60a73 Initial value for locations: changed syntax, executes, compiles. 2016-06-16 11:03:31 -05:00
Chris Pressey
b5763e84b4 Constants (such as routines) cannot be given in call-constraints. 2015-10-22 20:01:02 +01:00
Chris Pressey
0d3ac8c247 {Low,High}AddressByte emittables to fix copy, make indirect call! 2015-10-22 16:20:10 +01:00
Chris Pressey
0b2b5d904e Implement indirect JSRs with trampolines in theory; doesn't work. 2015-10-22 15:45:16 +01:00
Chris Pressey
0361016e4c Bring the rest of the tests up to date with the new names. 2015-10-22 09:48:26 +01:00