C64 Codebase Wiki

base:rasterbars_flash_screen_effect

wozza — Thu, 10 May 2012 12:21:07 +0000

A Rasterbar Screen Flasher routine by Wozza/CygnusOz ~ you can assemble via Kick Assembler! You can achieve this effect in a number of ways, with obvious tighter code etc, but this is my poor version. When I first started coding back in the early 80's, Rasterbars were a lot of fun, but I remember nutting out a flash routine which I thought was very cool. m( I didn't do much coding after that, (too busy swapping, chasing girls and boozing) so after 20+ years (ahem) it's been fun to go back and …

base:rasterbar-flasher_src.rar - created

wozza — Thu, 10 May 2012 12:17:00 +0000

base:rasterbar-flasher.jpg - created

wozza — Thu, 10 May 2012 12:15:59 +0000

base:advanced_optimizing - [LAX]

bitbreaker — Thu, 10 May 2012 09:01:11 +0000

In addition to the tutorials about speedcode an its generation i want to show some other possibilities to save some cycles and thus speed up your code. Therefore i try to give you some triggers on common situations. Feel free to add some more examples.

base:demo_programming - [Rasterbars]

wozza — Wed, 09 May 2012 11:32:55 +0000

This section contain material related to demo coding. General VIC programming is not available on this page. Instead it is devoted to coding specific demo effects and tutorials on how to make demos specifically (rather than coding in general). General drawing, non-specific to demo coding, is also on the general VIC page instead.

quick_howto - Added instructions about logging in before editing a page.

ftc — Mon, 07 May 2012 11:03:41 +0000

Adding a new page To add a new page, do this: * Log in. If you don't have username/password yet, just click the login button, and then click “register” (the link is located right below the log in box.) * Edit the page that should link to your page. Do this by pressing the “Edit this page” on the top/bottom or press an “edit” button to the right of the page. * Go the the precise location in the text where you want to add a link to your new page. Click the button that looks like a chain (…

base:mandelbrot - Link added

martin_piper — Fri, 04 May 2012 19:51:50 +0000

Mandelbrot generator Using the floating point routines in the BASIC ROM. The “stdlib.a” which is required by this asm source can be found in the Resurrection project ZIP file. ;Mandelbrot test code !source "../stdlib/stdlib.a" !to "Mandelbrot.prg", cbm !sal !sl "Mandelbrot.map" !svl "Mandelbrot.lbl" !cpu 6510 !ct pet !source "../stdlib/BASICEntry80d.a" !macro OutputFAC { jsr $bddd ; Convert FAC#1 to ASCII String. Kills FAC#2 jsr $b487 ; Set Up String jsr $ab21 ; Output String } LDFAC …

projects:sprite_clock

ftc — Mon, 30 Apr 2012 09:25:09 +0000

Download: Simple IRQ clock for C64 that uses sprite objects for presentation. ;SPRITE IRQ CLOCK (C) M.K. HOMEBREW COMPUTERS INC. ; Code below compiles with CC65 assembler: ; cl65 --verbose --listing spriteclock.asm ; Use HEX editor to insert "00 C0" at the beginning ; of the executable to be able to run it on C64 or ; in emulator. ; Usage: ; LOAD"SPRITECLOCK",8,1 ; CLR:NEW ; SYS49152,"HHMMSS" ; Where: ; HH - hours, MM - minutes, SS - seconds ; Turn clock off: ; SYS49152 ; Clock works in …

base:code_frame_for_16_kb_crt-images

ftc — Mon, 30 Apr 2012 09:20:42 +0000

; raw frame for generic 16 KB cartridge images ; v 1.0 enthusi 04/2012 ; this 16 KB Cartridge framework was written for http://www.rgcd.co.uk ; you will find this document also at http://codebase64.org ; this is a VERY simple but efficient approach, you can make more ; sophisticated usage of ROM using an own depacker routine etc.... ; sources are in XA format but no special features are used ; I strongly recommend the usage of cartconv which comes with vice ; you can as well set up your own crt…

base:thirdparty - [General cartridge info]

enthusi — Wed, 25 Apr 2012 15:05:57 +0000

Information about programming REU's, cartridges such as Action Replay/Final Cartridge/Retro Replay, RR-net/SilverSurfer, and so on. Cartridges General cartridge info * Cartridge bugs - A collection of bugs in common cartridges like Action Replay, Retro Replay and Final Cartridge. Original version of this text was by GRG. * Cartridge detection - Article by AlexC. * Assembling your own cart ROM image - info collected by FTC. * Code frame for 16 KB crt-images - by enthusi. * "crt.txt" …

base:6502_6510_maths - [Floating point] Mandelbrot

martin_piper — Mon, 23 Apr 2012 08:34:36 +0000

This is where you find pure math routines, i.e. not algorithms dependent of the workings of the graphics chip such as line drawing (which you find in the VIC section instead). Since the material in here does not really relate to other hardware than the 6502/6510, it is also useful for other systems which are based on 6502/6510 CPUs.

base:kick_assembler_macros

mace — Sun, 15 Apr 2012 11:23:27 +0000

Every now and then, someone (mostly Slammer), posts a nice Kick Assembler macro on CSDb. This page is intended to collect such tips and tricks that relate specifically to Kick Assembler. Please add your own macros here! To call a Macro in Kick Assembler, just write something like:

tools:kick_assembler_tips_tricks

mace — Sun, 15 Apr 2012 11:18:20 +0000

These tips & tricks have been extracted from various threads on the CSDb forum. There's also a page with a collection of macros for Kick Assembler. Many interrupts Suppose you have a routine that uses many IRQs. You might want create a macro to use at the end of each IRQ:

base:acme_vim.tar.gz

bitbreaker — Thu, 16 Feb 2012 11:42:47 +0000

base:vector.tar.gz

bitbreaker — Fri, 30 Dec 2011 08:24:36 +0000

base:mapdumbs.zip

achim — Fri, 23 Dec 2011 15:28:43 +0000

base:spritebackgr.zip

achim — Sat, 17 Dec 2011 14:56:19 +0000

base:tile_row.zip

achim — Tue, 22 Nov 2011 19:38:26 +0000

base:tile_column.zip

achim — Mon, 21 Nov 2011 18:36:38 +0000

base:filler.png

bitbreaker — Wed, 09 Nov 2011 14:36:37 +0000

projects:spriteclock.zip

mkarcz — Sun, 09 Oct 2011 23:54:39 +0000

base:3ddrivecalc.zip

wegi — Fri, 26 Aug 2011 12:30:54 +0000

base:3ddotscroll.zip

wegi — Fri, 26 Aug 2011 12:28:15 +0000

base:3ddotscroll.jpg

wegi — Fri, 26 Aug 2011 04:35:27 +0000

base:ccs0.jpg

wegi — Mon, 15 Aug 2011 12:04:54 +0000