Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!samsung!think.com!snorkelwacker!apple!mattd From: mattd@Apple.COM (Matt Deatherage) Newsgroups: comp.sys.apple2 Subject: Re: CDA GS/OS file format Message-ID: <44583@apple.Apple.COM> Date: 6 Sep 90 20:18:48 GMT References: <1990Sep5.201614.2370@ux1.cso.uiuc.edu> Organization: Apple Computer Inc., Cupertino, CA Lines: 22 In article <1990Sep5.201614.2370@ux1.cso.uiuc.edu> dat33228@uxa.cso.uiuc.edu (Derek A. Taubert) writes: > > Does anyone know specifically (like in what reference I can look it up) what >the $45 bytes is in the beginning of a CDA file? I'm wanting to write some >short assembly routines as CDA's, but I don't have an assembler, it's all been >done by hand. I've created a CDA file and I can save the code from the monitor >using prodos, but these extra $45 bytes seem to control the way GS/OS loads the >CDA, and I can't figure it out. > Apparently you're referring to the OMF header that all loadable files have. OMF is documented in the GS/OS Reference, new from Addison-Wesley. No assembler? Give it up, man. ORCA/M is only about $39 mail-order; doing it any other way (than with an assembler) just isn't worth it. Especially where OMF is involved. -- ============================================================================ Matt Deatherage, Apple Computer, Inc. | "The opinions represented here are Developer Technical Support, Apple II | not necessarily those of Apple Group. Personal mail only, please. | Computer, Inc. Remember that." ============================================================================