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--- base:techtech_fli [2016-04-21 13:27] – [The Solution] compyx
+++ base:techtech_fli [2016-04-22 12:41] (current) – added a screenshot compyx
@@ Line 5: / Line 5: @@
 Below is an example of a tech-tech effect, achieved using a so-called FLI-routine. This is **not** a tech-tech with a FLI logo, its a simple FLI based routine to allow videoram switching at every rasterline.
-The routine differs from the other article in that it uses videoram banks to create the tech-tech, not character sets. One could combine these two techniques by cleverly interleaving character sets and videoram to allow for a wider sinus, perhaps even bank switching with $dd00 for even more movement. I'll leave that as an exercise for the reader ;)
+The routine differs from [[magazines:chacking7#tech-tech_-_more_resolution_to_vertical_shift]|this article]] in that it uses videoram banks to create the tech-tech, not character sets. One could combine these two techniques by cleverly interleaving character sets and videoram to allow for a wider sinus, perhaps even bank switching with $dd00 for even more movement. I'll leave that as an exercise for the reader ;)
+{{:base:tech-tech-fli.png?404|Screenshot of the tech-tech in action}}
 I wrote this code as part of an attempt to regain my old VIC-trickery skills, it's been about 25 years since I did a tech-tech. As such, the code may not be up to today's standards. I just published it here since there was no article on tech-tech's using $d011/FLI.
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-====== The Theory =====
+===== The Theory =====
 //I'll use the word 'logo' here to simplify things a bit. My code doesn't actually include a logo, just some text
@@ Line 104: / Line 105: @@
 ===== The Code =====
-Here's the actual source code, in 64tass syntax. The FLI routine needs to be unrolled, the sinus calculation can all be done in a loop, but that eats cycles, so I also wrote some unrolled code for the $d016/$d018 values updating:
+Here's the actual source code, in 64tass syntax. The FLI routine needs to be unrolled, the sinus calculation can all be done in a loop, but that eats cycles, so I also wrote some unrolled code for the $d016/$d018 values updating.
+Before assembling, one should probably comment out the references to the music, I would be surprised to see everyone having their HVSC at "/home/compyx/c64/HSVC" ;)
 <code 6502tasm>