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Shadow
Account closed
Registered: Apr 2002
Posts: 355 |
Safe zeropage addresses
Which zeropage addresses are safe for use?
I've checked through a C64-memory map, and it seems like most zeropage locations with the exception of $00 and $01 are mostly for BASIC stuff, meaning that they should be OK when coding demos that doesn't use ase any BASIC or Kernel stuff?
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... 14 posts hidden. Click here to view all posts....
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Cruzer
Registered: Dec 2001
Posts: 1048 |
Quote: You said it yourself. If your demo doesn't use any BASIC or Kernel stuff, all addresses except $00 and $01 are safe. It's really simple as that.
And if we could just have had these two as well, everything would be perfect. I'll never forgive the C64 designers for this. DAMN YOU RUSSELL AND YANNES!! ;)
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Oswald
Registered: Apr 2002
Posts: 5094 |
yeah, also chuck peddle should suffer for not adding atleast one more damned index register ;) |
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Skate
Registered: Jul 2003
Posts: 494 |
@Oswald: registers are just like girls. you can load them as much as you want but you will still miss another one ;) tax, tay, tya, txa are all lesbians... |
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HCL
Registered: Feb 2003
Posts: 728 |
Which register is most teh ghay?
..and @Oswald: a bit naive to judge a music player as better/worse by the number of zp-adresses it uses.. lda zp,pha is not teh quality. |
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Cruzer
Registered: Dec 2001
Posts: 1048 |
The ideal music player should be configurable so you could set parameters like how many zp-adrs it can use, whether it should be optimized for cycle or memory consumption, whether it's the max or average rastertime that counts, etc. and then it should generate the player based on these criteria. Just an idea for next version, Jeff! ;)
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Zyron
Registered: Jan 2002
Posts: 2381 |
It should also create the music by itself, automagically. :) |
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HCL
Registered: Feb 2003
Posts: 728 |
Ahh, you're f**kedup, and you know it. This is the kind of stuff that is really motivating for the composers.. Cryptic, meaningless settings that doesn't affect the sound of your music at all. I guess *every* musician would start to fiddle with the ZeroPage-ramp and the Optimize-button at once, yeah right.. ;) |
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Dane
Registered: May 2002
Posts: 423 |
Quote: The ideal music player should be configurable so you could set parameters like how many zp-adrs it can use, whether it should be optimized for cycle or memory consumption, whether it's the max or average rastertime that counts, etc. and then it should generate the player based on these criteria. Just an idea for next version, Jeff! ;)
This pretty much describes my relationship with HCL |
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Quetzal
Registered: Jul 2002
Posts: 71 |
Quote: @Oswald: registers are just like girls. you can load them as much as you want but you will still miss another one ;) tax, tay, tya, txa are all lesbians...
lax = two at same time?! |
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Skate
Registered: Jul 2003
Posts: 494 |
this explains why lax is illegal ;) |
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