| --- Log opened Sat Mar 11 00:00:58 2017 |
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| 03:24 | | * McMartin ponders intermediate representations and how they can let him more sensibly organize his code. |
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| 06:20 | < LadyOfLight`> | Oh, I solved my let problem |
| 06:20 | < LadyOfLight`> | Huh |
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| 06:33 | <~Vornicus> | yey solved |
| 06:34 | < LadyOfLight`> | Sadly now I have the statements problem |
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| 07:42 | | * McMartin finishes doing the coding and testing for his PRNG explorations |
| 07:42 | <&McMartin> | That was a whole lot of work for what turned into 8 bytes of savings. |
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| 08:13 | <~Vornicus> | on a fuckin' zx, 8 bytes is a long way |
| 08:16 | <&McMartin> | Kinda, but, like, I can save four just by having the BASIC stub lie about what the number in its line is |
| 08:17 | <&McMartin> | Behold as I go to a whole lot of trouble to grind through code optimizing for a chip I don't know very well! |
| 08:17 | <&McMartin> | https://bumbershootsoft.wordpress.com/2017/03/11/getting-a-decent-and-fast-prng- out-of-an-8-bit-chip/ |
| 08:25 | | Kindamoody is now known as Kindamoody|afk |
| 08:37 | <~Vornicus> | heh |
| 10:15 | | * McMartin then sorts out the relevant file histories to get a sensible fake history up at the Github repo |
| 10:16 | <&McMartin> | Look, a complete game, albeit the same one I've always used for projects I'm not tremendously interested in~ |
| 10:16 | <&McMartin> | https://github.com/michaelcmartin/bumbershoot/blob/master/zx81/lightsout81.asm |
| 10:16 | <&McMartin> | Final Actual Program size: 742 bytes |
| 10:16 | <&McMartin> | Large enough to load into a 1K ZX81 without crashing it, but not enough to both be loaded and actually run. It actually checks and apologizes though! |
| 10:17 | <&McMartin> | It *will* run properly in 2KB, so if I ever fix this TS1000's keyboard ribbon I can totally load it into it |
| 10:17 | <&McMartin> | ... by hooking my PC speakers into its casette input port with a headphone extender |
| 10:17 | <&McMartin> | I kind of want to fix it just so that I have an excuse to do that, because that is hilarious. |
| 10:25 | <&McMartin> | (https://hkn.eecs.berkeley.edu/~mcmartin/screenshots/zx81_screen.png is the game in action) |
| 10:56 | <~Vornicus> | that is hilarious. |
| 11:08 | <@abudhabi> | McMartin: How small would you need it to be to run in 1K? |
| 11:13 | <&McMartin> | 108 bytes, or a drastically curtailed display |
| 11:13 | <&McMartin> | I'm using the whole screen memory there, but it will shrink if you don't use it, leaving more space for your program |
| 11:15 | <&McMartin> | One that shrank to the bare minimum display - no text, no space, just a 5x5 grid on the left side of the screen - would be a screen that costs 50 bytes instead of 793 |
| 11:16 | <&McMartin> | That would remove a bunch of rendering logic, too, but then I'd need to add new logic to handle the fact that you can no longer advance the cursor down by adding a constant to its position. |
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| --- Log closed Sun Mar 12 00:00:00 2017 |