Charlie wrote:
"David Empson" <dempson@actrix.gen.nz> wrote in message 1ivk1t0.1hybb3evsti5lN%dempson@actrix.gen.nz">news:1ivk1t0.1hybb3evsti5lN%dempson@actrix.gen.nz...vladitx <vladitx@nucleusys.com> wrote:SNIP <3) IIgs maximum RAM - banks $00 .. $7F are specified as RAM range. This makes exactly 8MB. But the manuals keep saying 8.25MB. What is the truth and where those 256KB came from?Anything saying 8.25 MB is simply wrong. The correct figure is 8.125 MB (8 MB plus 128 KB). The extra 128 KB is the "slow" memory in banks $E0 and $E1.Isn't there another 128KB of RAM dedicated to the sound generation chip?
That's 64K. -michael NadaNet and AppleCrate II: parallel computing for Apple II computers! Home page: http://home.comcast.net/~mjmahon "The wastebasket is our most important design tool--and it's seriously underused."