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174 Commits

Author SHA1 Message Date
Chris Pressey
c707105cd3 Describe the behaviour just implemented. 2018-03-27 16:49:20 +01:00
Chris Pressey
6744ad29a9 Beginnings of modularity. 2018-03-27 16:23:22 +01:00
Chris Pressey
877f55b6cd VIC-20 example and rewrite docs. 2018-03-26 13:43:33 +01:00
Chris Pressey
766de6a455 Reformat READMEs. 2018-03-26 13:33:07 +01:00
Chris Pressey
a8a53e2ca9 Save a few bytes in the demo game by using a for loop. 2018-03-26 13:23:36 +01:00
Chris Pressey
7f38d04536 Documentation updates. 2018-03-26 13:16:53 +01:00
Chris Pressey
42864bf125 Add SixtyPical translations of Ribos and "The PETulant Cursor". 2018-03-15 10:56:09 +00:00
Chris Pressey
689670a69e Small bugfixes and changes. 2018-03-13 09:25:06 +00:00
Chris Pressey
af09bd8875 Add screenshot. 2018-03-08 13:36:30 +00:00
Chris Pressey
95fb2bb8f6 Make loadngo.sh able to handle both C64 (x64) and VIC-20 (xvic). 2018-03-07 13:27:57 +00:00
Chris Pressey
1d1612761b Make the demo game compilable again. 2018-03-06 15:52:21 +00:00
Chris Pressey
e44c802314 Syntax errors have line numbers in them now. 2018-03-06 12:23:57 +00:00
Chris Pressey
2fdba72959 Re-organize the example programs. 2018-03-06 10:32:52 +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
79d7c8d198 button_down is local to check_button. 2018-02-09 16:59:01 +00:00
Chris Pressey
e9d9c717bb More statics in demo game. 2018-02-09 16:57:49 +00:00
Chris Pressey
1bd765dbce Begin using static in the demo game. 2018-02-09 16:46:53 +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
105534de5b Trim the type of game_state_routine, but run into something odd. 2018-02-08 16:03:22 +00:00
Chris Pressey
1116229867 Clean up example programs a little bit. 2018-02-08 15:05:37 +00:00
Chris Pressey
3bee722900 The "union rule" lets us clean up some of these redundant trashes. 2018-02-08 14:20:17 +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
6fc3ce27cc Finally, vector table for actor logic in demo game works. 2018-02-07 13:58:10 +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
1ee60095db Fairly minimal example that exhibits the problem. 2018-02-07 13:43:41 +00:00
Chris Pressey
4099c9cc1b Attempting to debug this vector table stuff. 2018-02-06 16:45:35 +00:00
Chris Pressey
43b3a088b0 Use a vector table in the demo game. 2018-02-06 15:03:59 +00:00
Chris Pressey
043872584b Add another typedef in the demo game. 2018-02-06 11:41:32 +00:00
Chris Pressey
fa5f32b2d2 Update syntax of demo game. 2018-02-06 11:36:11 +00:00
Chris Pressey
f78460a37b Finally, use typedefs in example game. 2018-02-06 10:41:21 +00:00
Chris Pressey
afd083052e Update syntax in proto-game. 2018-02-05 18:14:44 +00:00
Chris Pressey
b7abdea733 Revert changes to example game. 2018-02-05 11:19:59 +00:00
Chris Pressey
169cc1b109 Bring proto-game up to date with new syntax. 2018-02-02 17:19:35 +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
7a9b7d0719 Reverse delta of obstacles in a more conventional way upon bounce. 2018-01-08 12:10:59 +00:00
Chris Pressey
439b827e92 Almost make the bouncing obstacles happen. It's... interesting. 2017-12-14 12:05:44 +00:00
Chris Pressey
e2f61faeae Fix bug in game. 2017-12-14 11:59:09 +00:00
Chris Pressey
be3591ae44 If player perishes, set a flag that game state will use to change. 2017-12-14 11:04:19 +00:00
Chris Pressey
0452d5f2c8 Add game_state_game_over. Needs a bit of work, though. 2017-12-14 10:47:57 +00:00
Chris Pressey
cfb094513f Set up obstacles in game. 2017-12-14 10:13:47 +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
2e4d01edd3 Correct the implementation of check_new_position_in_bounds. 2017-12-13 16:05:18 +00:00
Chris Pressey
7593da7b18 Implement check_new_position_in_bounds. 2017-12-13 15:53:43 +00:00
Chris Pressey
7c3e1ae62c Use trash to avoid writing code that's only to please the analyzer! 2017-12-13 15:30:20 +00:00
Chris Pressey
42c7e3006d Calculate new position instead of updating to it immediately. 2017-12-13 14:29:24 +00:00
Chris Pressey
1478db0fb4 Use word tables, in game, to store the actors' positions and deltas. 2017-12-13 13:14:10 +00:00
Chris Pressey
d9c9dab9e7 Clear the screen when starting the game. 2017-12-13 12:32:24 +00:00
Chris Pressey
9c7082db6e Display message on-screen at start of game. 2017-12-13 12:24:11 +00:00
Chris Pressey
4854077cce Correctly analyze repeat { ... } forever loops. 2017-12-12 15:18:59 +00:00
Chris Pressey
3417fd96c7 Apparently this hack was only needed previously due to a bug? 2017-12-12 14:55:57 +00:00
Chris Pressey
7d11273c6c Slightly less of a hack. Not very much. But more illustrative. 2017-12-12 14:40:32 +00:00
Chris Pressey
5e8f41307d Give the "game" a "title screen" of sorts; click to begin. 2017-12-12 10:58:59 +00:00
Chris Pressey
b3d2d0bfcf Clearing up a little mystery I had here. 2017-12-12 10:10:58 +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
7323927f72 Add more notes and basically small cleanups in many places. 2017-12-11 15:21:40 +00:00
Chris Pressey
4f919c1d81 Slightly frustrating, but illuminating, attempt to title screen. 2017-12-11 14:40:30 +00:00
Chris Pressey
73810827b9 "repeat forever" in the main loop, or at least as close as we can. 2017-12-11 14:21:32 +00:00
Chris Pressey
b6ae45e0cb Add a routine to clear the screen, in the demo game. Untested. 2017-12-11 14:09:55 +00:00
Chris Pressey
b395dbcfda Spiff up the demo game source a little bit. 2017-12-11 14:01:57 +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
84ca6c4e96 Break the ground where we need to implement word table read/write. 2017-12-08 15:53:18 +00:00
Chris Pressey
ad8e0647a4 Use right endianness when copying literal word into storage. 2017-12-07 16:49:43 +00:00
Chris Pressey
14494bcdbe Add beginnings of thing which may one day become a game. Untested. 2017-12-07 16:14:02 +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
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
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
22cc7bfc11 Support copy'ing a word constant to a word location. Joystick eg. 2017-11-20 15:18:21 +00:00
Chris Pressey
2c564f0e48 Add uncommitted example source, and fix names of 2 others. 2016-06-16 11:14:08 -05:00
Chris Pressey
3e72580cd2 Prep for release of 0.6. 2015-10-23 16:37:18 +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
16450e06d5 Compile goto's. 2015-10-21 15:51:52 +01:00
Chris Pressey
69fa91417c Add missing example source 2015-10-20 17:39:00 +01:00
Chris Pressey
7d56705530 Check that the constraints on a routine match those of vector. 2015-10-19 19:17:27 +01:00
Chris Pressey
e3fe337730 Interesting dead end we've got ourselves into here. 2015-10-18 23:31:17 +01:00
Chris Pressey
9235c6eacc Support line comments. 2015-10-18 18:54:28 +01:00
Chris Pressey
a9bd8a3714 Indexed access, + x / + y, at least for LDA and STA. 
--HG--
rename : eg/screen.60p => eg/screen1.60p
 2015-10-18 18:32:20 +01:00
Chris Pressey
522c771208 Add explicitly-addressed memory locations. 2015-10-18 16:22:36 +01:00
Chris Pressey
49e42af953 Implement if not and repeat forever. 2015-10-18 15:32:28 +01:00
Chris Pressey
c5998ed240 Compile repeat loops. 2015-10-18 13:55:40 +01:00
Chris Pressey
b794d8d273 Get serialization of relative labels correct. 2015-10-17 18:11:23 +01:00
Chris Pressey
e62fd85ccf Compile access of defined memory locations. 2015-10-17 15:46:28 +01:00
Chris Pressey
643a48a2c5 Compiler object, labels, compile 'call'... It prints 'A'! 2015-10-17 15:06:50 +01:00
Chris Pressey
d0e3dfbf84 Add tests for compilation, BASIC header, load-n-go script. 2015-10-17 12:28:39 +01:00
Chris Pressey
f92056d640 REBOOT the entire language & implementation as version 0.2-PRE. 2015-10-16 09:30:24 +01:00
Cat's Eye Technologies
5a794a46e6 Name flags in routine outputs. Refactor game, add check_button. 2014-04-13 13:42:15 +01:00
Cat's Eye Technologies
730f9f1cb1 Make game even more interesting -- 619 bytes. 2014-04-13 13:14:04 +01:00
Cat's Eye Technologies
cbd88abc89 Vector tables, and copy routine into a vector table. 2014-04-13 12:41:26 +01:00
Cat's Eye Technologies
eec59ac8a9 Make game more interesting (and 544 bytes long...) 2014-04-13 12:24:21 +01:00
Cat's Eye Technologies
13d38dc45f Immediate, or register, on LHS of copy command. 2014-04-13 12:12:53 +01:00
Cat's Eye Technologies
26448ccce5 More access of word tables. Game works with a word table now! 2014-04-13 12:06:36 +01:00
Cat's Eye Technologies
cbeac87a73 Beginnings of using word tables 2014-04-13 11:41:40 +01:00
Cat's Eye Technologies
cac23cc7d0 Two kinds of actor. We now need vector tables! 2014-04-12 21:45:27 +01:00
Cat's Eye Technologies
04678ca809 Block-level decls are visible in inner blocks. 2014-04-12 21:27:04 +01:00