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https://www.megalextoria.com/forum2/index.php?t=rview&goto=128091&th=53541#msg_128091
Message-ID: <1139@nsc.UUCP>
Date: Mon, 2-Jul-84 16:41:57 EDT
Article-I.D.: nsc.1139
Posted: Mon Jul 2 16:41:57 1984
Date-Received: Tue, 3-Jul-84 03:13:57 EDT
Organization: National Semiconductor, Sunnyvale
Lines: 31
Is this newsgroup still active? I tried reading it after I found about
the TI discussions being moved here and found nothing. 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. 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
32000 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.zx.
Thanx,
Kchula-Rrit
!menlo70!nsc!nessus
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