lenoil@mit-eddie.UUCP (Robert Scott Lenoil) (12/15/84)
> 3. Disk drive channels 0 and 1 are used by kernel when load or save > operations are called for. There is no real reason not to use them in your > programs unless your program calls for one of those operations (except > that it is usually advisable to respect your OS and not use something that > it reserves for itself - especially if you can just as easily avoid doing > so). This is mostly useful in machine language applications wher calls to > kernel's LOADRAM and SAVERAM might be common. > > - Jeff Rosenfeld, > jdr@cmu-cs-speech2.ARPA. This is NOT true. There IS a significance to secondary addresses 0 and 1. I have seen it when writing a routine to read the directory off the disk by opening 1,8,0,"$0". This does act differently if I use a different secondary address. Perhaps someone with a copy of "Inside Commodore DOS" could look this up and provide a (correct) answer as to the specific differences when using secondary addresses 0 and 1. Robert Lenoil USENET: {ihnp4,decvax!genrad,godot,harvard}!mit-eddie!lenoil ARPANET: lenoil@mit-xx.arpa
mrr@rayssd.UUCP (12/19/84)
It is my understanding that channels 0/1 load/save the directory in program image format (implying some conversion by DOS) rather than passing the binary image (which contains more information but requires more formatting by the application). Mark Rinfret SofTech, Inc.