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- Newsgroups: comp.sys.tandy
- Path: sparky!uunet!psgrain!qiclab!leonard
- From: leonard@qiclab.scn.rain.com (Leonard Erickson)
- Subject: Re: 1000 RL questions
- Message-ID: <1992Sep4.031324.27009@qiclab.scn.rain.com>
- Reply-To: 70465.203@compuserve.com
- Organization: SCN Research/Qic Laboratories of Tigard, Oregon.
- References: <israel.715560598@unixg.ubc.ca>
- Date: Fri, 4 Sep 1992 03:13:24 GMT
- Lines: 35
-
- israel@unixg.ubc.ca (Robert B. Israel) writes:
-
- >My son has a Tandy 1000RL. We have three questions:
-
- >1) The computer originally had 512K of RAM. He bought and installed
- >256K of additional memory (two chips). The computer now says "768 K"
- >when we turn it on, but after it's finished booting we can only find
- >640K. Yes, I know DOS has a 640K limit, but I thought we could use
- >the extra 128K for loading TSR's or for a RAMdisk. Where is this
- >memory and how is it accessible?
-
- The Tandy 1000 series *without* that extra RAM uses part of the *normal*
- RAM for the video (instead of having dedicated RAM for it). That extra
- 128k is *now* dedicated to your video. It's in the A000 to BFFF area.
-
- >2) How can one access the sound and music systems, other than through
- >DeskMate? We'd like to do some programming.
-
- *Good* question. There *was* a book from Tandy "Grapics and Sound
- Programming on the Tandy 1000". So far the only info I've fund was
- in Ralf Brown's interrupt list.
-
- >3) Is there a technical reference manual for this computer, and where
- >is it available? The sales people at Radio Shack have been completely
- >out of their depth on these questions.
-
- Try getting them to order a *service* manual. It may have some info.
- Or get them to give you the number for Tandy National Parts. Then
- you'll be at least one level closer to someone who might know something.
-
- --
- Leonard Erickson leonard@qiclab.scn.rain.com
- CIS: [70465,203] 70465.203@compuserve.com
- FIDO: 1:105/51 Leonard.Erickson@f51.n105.z1.fidonet.org
- (The CIS & Fido addresses are preferred)
-