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- Path: sparky!uunet!cs.utexas.edu!zaphod.mps.ohio-state.edu!menudo.uh.edu!uhphys.phys.uh.edu!stich
- From: stich@uhphys.phys.uh.edu (CHRISTIAN STICH)
- Subject: Re: A1000 ECS ?
- Message-ID: <23JUL199223152707@uhphys.phys.uh.edu>
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- Organization: University of Houston
- References: <al158305.711682867@academ01> <1992Jul21.181107.28894@ninja.zso.dec.com> <21JUL199216040569@uhphys.phys.uh.edu> <1992Jul22.173346.27281@ninja.zso.dec.com>
- Date: Fri, 24 Jul 1992 05:15:00 GMT
- Lines: 54
-
- In article <1992Jul22.173346.27281@ninja.zso.dec.com>, Hans Ridder <ridder@zso.dec.com> writes...
- >In article <21JUL199216040569@uhphys.phys.uh.edu> stich@uhphys.phys.uh.edu (CHRISTIAN STICH) writes:
- >>In Appendix C on page 299 of the Amiga Hardware reference manual
- >>(edition) it says:
- >> At present there are four possible settings. A value of 20 or 30
- >> indicates that the enhanced HighRes Agnus is present.
- >>
- >> 8361 (regular NTSC) or 8370 (fat NTSC) = 10 for NTSC
- >> 8367 (regular PAL) or 8371 (fat PAL) = 00 for PAL
- >> -> 8368 (hr) or 8372 (fat-hr) = 20 for PAL, 30 for NTSC
- >>
- >>Notice that the 8368 follows the 8367 but comes numerically before any
- >>of the fat Agnus versions.
- >
- >What 8368?
- >
- >>This seems to indicate that someone at C= was at least planning a Super
- >>(non fat) Agnus for the A1000 (or maybe the A2000A ?) which would still
- >>only address 512 KB of chip mem, but allow the ECS video modes such as
- >>Productivity and Super-Hires.
- >
- >How can you draw a conclusion like that? All you can possibly tell from
- >the existing chip numbers is that they started numbering the fat Agnuses
- >at 8370 and went up from there. Anything beyond that is wild
- >speculation.
- >
- >>When I tried to order one through the local dealership, they couldn't
- >>find an order number in Commodore's parts catalog, though.
- >
- >No surprise, the chip doesn't exist! (What some people will do for
- >entertainment?!?)
- >
- >> Christian
- >
- >-hans
- >--
- > Hans-Gabriel Ridder Digital DECwest Engineering
- > ridder@rust.zso.dec.com Bellevue, Washington, USA
- > {pacbell,pyramid,uunet}!rust.zso.dec.com!ridder
-
-
- What a kind reply! Maybe you can tell me what type of chip it is and why
- it is listed in the Hardware manual (3rd edition, I lost the 3rd in the
- first posting). I did not say anywhere that it existed, I only stated that
- it, 8368 HR (similar to HR-fat ???), is printed in the manual. Please read it
- yourself. Do you think that this kind of message is appropriate, especially
- "(What some people will do for entertainment?!?)" ?
- Christian E. Stich
-
- UofH, Physics, Mathematics + Computer Science
-
- By the way, I would not need one of those chips since my 2 A1000 are barely
- used at all, and the 2000 as well as the 2500/30 are both equipped with ECS
- Agni (Agnus got a Latin ending so plural would be Agni) and ECS Denises.
-