Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!seismo!rochester!kodak!elmgate!jdg From: jdg@elmgate.UUCP (Jeff Gortatowsky) Newsgroups: net.micro.atari16 Subject: Re: Questions on BITBLIT, Malloc (not malloc), and 68 Disassemblers Message-ID: <521@elmgate.UUCP> Date: Fri, 5-Sep-86 08:17:32 EDT Article-I.D.: elmgate.521 Posted: Fri Sep 5 08:17:32 1986 Date-Received: Fri, 5-Sep-86 21:11:28 EDT References: <8609050623.AA09089@ucbvax.Berkeley.EDU> Organization: Eastman Kodak Co., Rochester, NY Lines: 40 Summary: I'd like an example (well commented) of using BITBLT ($A007). In article <8609050623.AA09089@ucbvax.Berkeley.EDU>, bammi@case.CSNET ("Jwahar R. Bammi") writes: > The parameter block for bitblt (a007) is described in detail in the document > titled 'The much awaited Line A document' that comes with the developers > sytem. Its too long to retype here. No,no,no,... I meant I'd just like to see the same structure definition that was published in the 68K issue of BYTE, only with the fields of the structure commented as to what units they represent (BYTES,PIXELS,X/Y pairs, words, etc). That is assuming of course it is the correct structure definition in the first place. For example the structure starts with: struct blahblah { short b_wd,b_ht; ..... .... lots more stuff... Now I looked at that and said AH HAH! block width and block height. Hmmm ....in pixels? Must be. Well maybe not. Hmmm. The offsets (word,line,plane) really are the ones I can't deduce from looking at the structure. Offset by what? Word offset? 16 bits right? Or 1 for one word. Plane offset? I thought the plane offsets were 0,1,2,3 words depending on color choice (or something like that). I'll muddle along figuring the rest out. Just get me started with a commented structure definition. Please? As for the Line A doc you mentioned, my developer buddy told me on the phone that it says 'see the end of this document for a description of BITBLT'. Only there is no description to be found! I asked him if the 300 bucks was well spent? He hung up...... 8^) -- Jeff Gortatowsky {allegra,seismo}!rochester!kodak!elmgate!jdg Eastman Kodak Company