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Codey
Registered: Oct 2005
Posts: 79 |
1541 Routines
What's the most impressive 1541 routines you've seen other than for loading? Some routines I recall are turning the led on and off in sync with the music, fading the led in and out, and bumping the head to play music from the drive (this had to contribute to many mis-aligned 1541s!) |
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Krill
Registered: Apr 2002
Posts: 2839 |
Quoting CopyfaultI think there was a fractal generator
[...]
Either way, it's not a demo! Pray tell, why is it not a demo? =) |
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Copyfault
Registered: Dec 2001
Posts: 466 |
Quoting KrillQuoting CopyfaultI think there was a fractal generator
[...]
Either way, it's not a demo! Pray tell, why is it not a demo? =) I keep my hands off the territory of definitions on csdb. Better leave it to the mods ;) |
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Krill
Registered: Apr 2002
Posts: 2839 |
To quote a demo scener i keep in high regard:
"julia fractals are never nice (slow or fast)... they're ugly iterating blobs of nothingness, same goes for mandelbrots... It's debugging stuff for mathematicians, not eyecandy"
... and they serve no purpose, apart from showing "oh yeah, i can do that!" =)
So, if there's anything qualifying for "demo", it's fractal generators. =D |
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Martin Piper
Registered: Nov 2007
Posts: 634 |
Quote: To quote a demo scener i keep in high regard:
"julia fractals are never nice (slow or fast)... they're ugly iterating blobs of nothingness, same goes for mandelbrots... It's debugging stuff for mathematicians, not eyecandy"
... and they serve no purpose, apart from showing "oh yeah, i can do that!" =)
So, if there's anything qualifying for "demo", it's fractal generators. =D
Umm yeah, a fractal routine, especially one that is novel and uses one or more 1541s, would definitely be a "demo". |
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Mirage
Registered: Jan 2003
Posts: 113 |
Quote: To quote a demo scener i keep in high regard:
"julia fractals are never nice (slow or fast)... they're ugly iterating blobs of nothingness, same goes for mandelbrots... It's debugging stuff for mathematicians, not eyecandy"
... and they serve no purpose, apart from showing "oh yeah, i can do that!" =)
So, if there's anything qualifying for "demo", it's fractal generators. =D
They still are! :) |
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Krill
Registered: Apr 2002
Posts: 2839 |
Amanita (80%) - vector objects part on 2nd side. |
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Copyfault
Registered: Dec 2001
Posts: 466 |
Quoting KrillTo quote a demo scener i keep in high regard:
"julia fractals are never nice (slow or fast)... they're ugly iterating blobs of nothingness, same goes for mandelbrots... It's debugging stuff for mathematicians, not eyecandy"
... and they serve no purpose, apart from showing "oh yeah, i can do that!" =)
So, if there's anything qualifying for "demo", it's fractal generators. =D Meanwhile I found this link: https://www.c64-wiki.de/wiki/Mandelbrot-Construction-Set (sorry for German language used in the linked page)
The tool(!) is capable of handling only one drive, not several drives like I had in mind. But still, the program doesn't feel like a demo to me, it's rather a utility. |
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deetsay
Registered: Aug 2005
Posts: 36 |
Do loaders generally (...or any loader) have support or room left for 1541 code, or do you always trash the loader and then run the "loader installer" again afterwards? |
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Krill
Registered: Apr 2002
Posts: 2839 |
Quoting deetsayDo loaders generally (...or any loader) have support or room left for 1541 code, or do you always trash the loader and then run the "loader installer" again afterwards? It's the latter, but in a more refined form these days. :).struct drivecode
entry .word; drive
to .word; drive
length .word; bytes
from .word; host
.endstruct
.struct swapparams
buffer .word; $0800 bytes for swapped loader drive code
drivecode41 .tag drivecode
.if ONLY_1541_AND_COMPATIBLE = 0
drivecode71 .tag drivecode
drivecode81 .tag drivecode
.endif; ONLY_1541_AND_COMPATIBLE = 0
.endstruct
.import swapdrvcod
.import restoreldr
; Execute custom code in the drive, buffer loader code on host side before
; in: x/y - x: lo, y: hi of swapparams structure
; out: c - set on error
; a - status
.macro SWAP_DRIVECODE params
ldx #<(params)
ldy #>(params)
jsr swapdrvcod
.endmacro
; Restore drive-side loader code
; in: nothing
; out: undefined
.macro RESTORE_LOADER
jsr restoreldr
.endmacro |
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Krill
Registered: Apr 2002
Posts: 2839 |
Boo! - drive-side co-processing. |
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