From: groepaz (groepaz_at_gmx.net)
Date: 2002-05-17 15:54:25
Hello Stephan, SL> What do you think, can I assume that the size of a compiled C program SL> (modulo silly programming :)) will be about 1 to 1.5 times that of a SL> hand-written assembly program for the same purpose, plus ca 3 K for the SL> library? it depends on the actual size of your program.... the larger your program will be, the less "overhead" (in terms of size) you will have. SL> Generally, those who already have realized larger projects under cc65, SL> particularly on the c64 and including interfaces to binary parts like musics SL> and IRQ loaders, could you tell how well it went, and what experiences SL> you made? Does it actually become easier to write a program like a game SL> in C, compared to assembly, and can you write the major parts in C, or SL> do you end up with a frame program in C, and the rest mostly written in SL> assembly? biggest problems/pitfals are probably with interfacing to "foreign" assembly....that is code that is tied to a fixed memory location (eg lotta music tied to $1000) and you dont have sources for it either so you can recompile - my suggestion for that would be, use a musicroutine and an irq-loader that you have sources of and convert those to ca65 syntax....this way they will integrate into the rest of your project nicely. second thing is working with interupts themselves - you will most likely end up in coding all your interupt-services in assembler (it could be done in C with some hacking but its in no way reasonable) generally, i'd say write your "main loop" in C, and put everything else in a tiny dedicated library (which you are ofcoz supposed to release for everyone to use...etc ;=P hehe) .... that is, combine the best of both worlds, start writing stuff in C, debug it and then convert the logic to assembler (maybe based on the compiler output). -- Best regards, groepaz mailto:groepaz_at_gmx.net ---------------------------------------------------------------------- To unsubscribe from the list send mail to majordomo_at_musoftware.de with the string "unsubscribe cc65" in the body(!) of the mail.
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