Search found 33 matches
- Mon Dec 13, 2021 8:47 am
- Forum: Programming
- Topic: BASIC input buffer $0200 - $0258
- Replies: 5
- Views: 990
Re: BASIC input buffer $0200 - $0258
Thanks for the warning, I am actually doing just that!
- Sun Dec 12, 2021 1:10 pm
- Forum: Programming
- Topic: BASIC input buffer $0200 - $0258
- Replies: 5
- Views: 990
BASIC input buffer $0200 - $0258
This seems a fairly decent amount of space, could I use this in an ML program that was started with a BASIC stub without screwing anything up?
- Sat Sep 11, 2021 7:16 am
- Forum: Games
- Topic: missile command
- Replies: 5
- Views: 1323
Re: missile command
I've seen clips of people playing Missile Command on the Atari 2600 using an Amiga mouse, would such a thing be possible on the Vic?
- Tue Aug 10, 2021 6:21 am
- Forum: Games
- Topic: ZEPTOPOLIS
- Replies: 66
- Views: 18932
Re: WIP: ZEPTOPOLIS
The real answer to this is "zero page." Except for a few storage locations that need to be part of the saved game state, everything uses zero page. I think that's the best way to compress 6502 code without tricks. In rewriting Gravity Ball, I've noticed places where I can change the curre...
- Sat Aug 07, 2021 5:17 pm
- Forum: Programming
- Topic: Standardized 'libraries' for Assembly?
- Replies: 13
- Views: 2733
Re: Standardized 'libraries' for Assembly?
Yeah, I can't have too much in each one. For instance in the above joystick routine I could have added something to push the current contents of the Data Direction Registers onto the stack, set them, read the stick, then restore them. That would have added size and execution time and if the keyboard...
- Sat Aug 07, 2021 1:18 pm
- Forum: Programming
- Topic: Standardized 'libraries' for Assembly?
- Replies: 13
- Views: 2733
Re: Standardized 'libraries' for Assembly?
Here's an example. Program code for JoyStick.asm JoystickS1 = 37137 ; Set data direction registers at 37139 to 0 JoystickS2 = 37152 ; and 37154 to 127 before attempting to read joystick StickUp$ = 4 ; read these 4 values from JoystickS1 StickDown$ = 8 ; these bits are INVERSE. Bit with be 0 on read ...
- Sat Aug 07, 2021 11:55 am
- Forum: General Topics
- Topic: Famicom-music on VIC-20
- Replies: 39
- Views: 14676
Re: Famicom-music on VIC-20
That is epic! Any chance of getting some of the music from Solstice? A vic would probably explode attempting that... 

- Sat Aug 07, 2021 11:52 am
- Forum: Games
- Topic: WIP: Siege
- Replies: 11
- Views: 3229
Re: WIP: Siege
Also quite similar to Runic Chess, a minigame from Star Ocean 3. Love the idea, and the clever use of PETSCII for the vehicles.
- Sat Aug 07, 2021 11:18 am
- Forum: Programming
- Topic: Standardized 'libraries' for Assembly?
- Replies: 13
- Views: 2733
Standardized 'libraries' for Assembly?
I had to scrap Gravity Ball and start over because I was running out of memory and my physics were janky as f***. I was using almost identical code in multiple areas to do the same jobs, the program was disjointed and hard to follow, and the code I had to look over was huge, over 1000 lines with lab...
- Thu Aug 05, 2021 11:07 pm
- Forum: Games
- Topic: ZEPTOPOLIS
- Replies: 66
- Views: 18932
Re: ZEPTOPOLIS
Ah, got that bassackwards.
Also realized that your city can be disconnected. Here I'm taking advantage of lakes by starting small communities around them. Although a house just burned down north of that center lake, they aren't going to like that next year...
Also realized that your city can be disconnected. Here I'm taking advantage of lakes by starting small communities around them. Although a house just burned down north of that center lake, they aren't going to like that next year...
- Thu Aug 05, 2021 1:23 pm
- Forum: Games
- Topic: ZEPTOPOLIS
- Replies: 66
- Views: 18932
Re: ZEPTOPOLIS
RetroArch for Android has a VICE core and supports all the functions that RetroArch provides, such as Save State. For Vic I would prefer a portrait screen layout with stick and button on the left and right. It defaults to a Playstation style control layout which is ridiculous for the Vic. Edit: Foun...
- Wed Aug 04, 2021 9:11 pm
- Forum: Games
- Topic: ZEPTOPOLIS
- Replies: 66
- Views: 18932
Re: ZEPTOPOLIS
Thanks to RetroArch it's now a mobile game too!
- Wed Aug 04, 2021 6:06 pm
- Forum: Games
- Topic: ZEPTOPOLIS
- Replies: 66
- Views: 18932
Re: ZEPTOPOLIS
I didn't realize you could get away with so few windmills, I think I'm throwing way too many of those out there.
- Wed Aug 04, 2021 6:26 am
- Forum: Games
- Topic: ZEPTOPOLIS
- Replies: 66
- Views: 18932
Re: ZEPTOPOLIS
Making enough profit to maintain the whole place is going to be tough, my dream of amassing enough of a fortune so I can launch myself into space on a phallic shaped rocket while everyone else languishes in poverty isn't going to happen, is it? I guess I'll just have to make sure my people have what...
- Tue Aug 03, 2021 10:57 pm
- Forum: Games
- Topic: ZEPTOPOLIS
- Replies: 66
- Views: 18932
Re: ZEPTOPOLIS
Gack, made the mistake of building a ton of houses at the start of the game, kinda pointless considering they don't fill up very fast.