Log inRegister an accountBrowse CSDbHelp & documentationFacts & StatisticsThe forumsAvailable RSS-feeds on CSDbSupport CSDb Commodore 64 Scene Database
You are not logged in - nap
CSDb User Forums


Forums > C64 Coding > Help wanted for developing special disk loader
2020-04-15 05:47
Proton

Registered: Jul 2019
Posts: 7
Help wanted for developing special disk loader

I'm looking for advanced programmers for developing special disk loader routine.

Background info: I developed working and fast IRQ-loader 32 years ago. Loader initiates using Kernal routines, then it invokes raster IRQ and does fast loading using two bits serial transfer. Now I need to modify it to on-demand loader where drive-code is initialized once and then stays in stand-by to load more without initiating the drive code again.
2020-04-15 08:38
JackAsser

Registered: Jun 2002
Posts: 1987
Quote: I'm looking for advanced programmers for developing special disk loader routine.

Background info: I developed working and fast IRQ-loader 32 years ago. Loader initiates using Kernal routines, then it invokes raster IRQ and does fast loading using two bits serial transfer. Now I need to modify it to on-demand loader where drive-code is initialized once and then stays in stand-by to load more without initiating the drive code again.


There are tons of loaders off the shelf, why not use them?

Such as Krill's Loader, Repository Version 184, Spindle 2.3 or Bitfire 0.6
2020-04-15 09:03
Proton

Registered: Jul 2019
Posts: 7
Because I don't know which one does the magic I'm looking for.
I was sure that someone will ask me why?
Yesterday I took a look at krill's loader and my preferred environment didn't fit into the prerequisites.
So I'm following the ancient rule - - if you are doing something different and want to get it done, do it yourself.
I'm just looking for some help.
2020-04-15 09:07
Krill

Registered: Apr 2002
Posts: 2804
Quoting proton_FIG
Yesterday I took a look at krill's loader and my preferred environment didn't fit into the prerequisites.
You know that you only need to build it once, then incbin the two binaries in your code? (Plus there are prebuilt binaries.) The loader's and your build environment are basically orthogonal.
2020-04-15 09:11
Proton

Registered: Jul 2019
Posts: 7
No, I did not.
How does it work with running irq?
2020-04-15 09:14
Krill

Registered: Apr 2002
Posts: 2804
It's arbitrarily interruptible. They all are. :)
Using 2bits+ATN protocol, there are no restrictions of sprites, DMA, IRQ or NMI usage.
RefreshSubscribe to this thread:

You need to be logged in to post in the forum.

Search the forum:
Search   for   in  
All times are CET.
Search CSDb
Advanced
Users Online
St0rmfr0nt/Quantum
Twoflower/ΤRIΛD
encore
commodore_freak
Tom-Cat/Nostalgia
Murphy/Exceed
cba
Spinball/Excess
t0m3000/ibex-crew
Guests online: 336
Top Demos
1 Next Level  (9.8)
2 Mojo  (9.7)
3 Coma Light 13  (9.7)
4 Edge of Disgrace  (9.6)
5 No Bounds  (9.6)
6 Comaland 100%  (9.6)
7 Uncensored  (9.6)
8 The Ghost  (9.6)
9 Wonderland XIV  (9.6)
10 Bromance  (9.6)
Top onefile Demos
1 Party Elk 2  (9.7)
2 Cubic Dream  (9.6)
3 Copper Booze  (9.5)
4 Rainbow Connection  (9.5)
5 TRSAC, Gabber & Pebe..  (9.5)
6 Onscreen 5k  (9.5)
7 Dawnfall V1.1  (9.5)
8 Quadrants  (9.5)
9 Daah, Those Acid Pil..  (9.5)
10 Birth of a Flower  (9.5)
Top Groups
1 Booze Design  (9.3)
2 Nostalgia  (9.3)
3 Oxyron  (9.3)
4 Censor Design  (9.3)
5 Crest  (9.3)
Top Swappers
1 Derbyshire Ram  (10)
2 Jerry  (9.8)
3 Violator  (9.8)
4 Acidchild  (9.7)
5 Starlight  (9.6)

Home - Disclaimer
Copyright © No Name 2001-2024
Page generated in: 0.052 sec.