Re: The infinitely profitable program

2016-07-05 Thread Tapley, Mark
On Jul 2, 2016, at 1:37 PM, Fred Cisin wrote: > On Sat, 2 Jul 2016, Eric Christopherson wrote: >> Genius. > Clever? yes. Genius? no, or you would have to count too many of us. > >> But I would have thought CP/M would at least require a .com file to >> have a header. >> http://peetm.com/blog/?p=

Re: The infinitely profitable program

2016-07-02 Thread Raymond Wiker
> On 03 Jul 2016, at 01:00 , Eric Smith wrote: > > On Sat, Jul 2, 2016 at 11:29 AM, Eric Christopherson > wrote: >> Genius. But I would have thought CP/M would at least require a .com file to >> have a header. >> http://peetm.com/blog/?p=55 > > Multiple people independently invented the zero-b

Re: The infinitely profitable program

2016-07-02 Thread Eric Smith
On Sat, Jul 2, 2016 at 11:29 AM, Eric Christopherson wrote: > Genius. But I would have thought CP/M would at least require a .com file to > have a header. > http://peetm.com/blog/?p=55 Multiple people independently invented the zero-byte CP/M program, which is obviously the shortest possible usef

Re: The infinitely profitable program

2016-07-02 Thread Fred Cisin
On Sat, 2 Jul 2016, Liam Proven wrote: [Howard Fullmer] https://books.google.cz/books?id=WDAEMBAJ&pg=PA34&lpg=PA34&dq=Howard+Fullmer+parasitic+engineering&source=bl&ots=vR97Abpe-n&sig=PkbTWlbiUCJDMt4iyl80Mu7Tds0&hl=en&sa=X&redir_esc=y#v=onepage&q=Howard%20Fullmer%20parasitic%20engineering&f=f

Re: The infinitely profitable program

2016-07-02 Thread Liam Proven
On 2 July 2016 at 20:37, Fred Cisin wrote: >Initials of Mark Zbikowski. Who was he? As little is known about him as > is about Howard Fullmer ("Parasitic Engineering" and chief engineer for > Morrow) Fascinating stuff as ever, Fred. Thanks. BTW... https://en.wikipedia.org/wiki/Mark_Zbiko

Re: The infinitely profitable program

2016-07-02 Thread Fred Cisin
On Sat, 2 Jul 2016, Chuck Guzis wrote: Of course, this only works when the program doesn't clobber its own initialization code (to reclaim memory), which a lot of programs did in those memory-limited days. OR, as part of the program's initialization code (starting at 100h) it clears the areas of

Re: The infinitely profitable program

2016-07-02 Thread Fred Cisin
On Sat, 2 Jul 2016, Eric Christopherson wrote: Genius. Clever? yes. Genius? no, or you would have to count too many of us. But I would have thought CP/M would at least require a .com file to have a header. http://peetm.com/blog/?p=55 NO. A .COM file is a pure image of memory, starting at lo

Re: The infinitely profitable program

2016-07-02 Thread Chuck Guzis
On 07/02/2016 10:29 AM, Eric Christopherson wrote: > Genius. But I would have thought CP/M would at least require a .com > file to have a header. > > http://peetm.com/blog/?p=55 Of course, this only works when the program doesn't clobber its own initialization code (to reclaim memory), which a lo

The infinitely profitable program

2016-07-02 Thread Eric Christopherson
Genius. But I would have thought CP/M would at least require a .com file to have a header. http://peetm.com/blog/?p=55