nessus@nsc.UUCP (Kchula-Rrit) (07/06/84)
I'm glad to see that this newsgroup has been formed. A few days ago, I
was informed that net.zx was going to be used unofficially for net.ti99. This
is a message that I put in net.zx, but just found out about net.ti, so am
placing it here, instead.
For starters, I just built a 32K expansion RAM for my TI 99/4A and found
that it seems to play merry havoc with TV reception. Otherwise, the RAM works
just fine. Wrapping the box in aluminum foil seemed to not help at all.
Any {hopefully inexpensive/free} ideas to help me cure this?
The memory map is thus:
0000 -> 1FFF Console ROM
2000 -> 3FFF Expansion RAM low bank
4000 -> 5FFF Peripheral Driver programs
6000 -> 7FFF Cartridge space
8000 -> 83FF Console RAM
8400 -> 9FFF Speech Synthesizer,Video Display Processor
A000 -> FFFF Expansion RAM high bank
What does BASIC put in low Expansion RAM? If it is available to me, then
I should see "13298 STACK
32XXX PROGRAM BYTES FREE" instead of "24XXX PROGRAM". I am very
curious about this.
For the purposes of discussion, it may be advisable to send answers to
net.micro.ti.
Thanx,
Kchula-Rrit
!menlo70!nsc!nessus