From brain@mail.msen.com Tue May 28 15:32:00 EET DST 1996 Article: 53096 of comp.sys.cbm Path: news.cs.tut.fi!news3.funet.fi!news.funet.fi!news.eunet.fi!EU.net!newsfeed.internetmci.com!news.kei.com!news.texas.net!news1.best.com!pravda.aa.msen.com!conch.aa.msen.com!not-for-mail From: brain@mail.msen.com (Jim Brain) Newsgroups: comp.sys.cbm Subject: Commodore Trivia Edition #27 Answers Date: 23 May 1996 23:05:46 -0400 Organization: Msen, Inc. -- Ann Arbor, MI Lines: 172 Sender: brain@msen.com Message-ID: NNTP-Posting-Host: conch.aa.msen.com X-Newsreader: Yarn 0.90 with YES 0.22 X-URL: http://www.msen.com/~brain/ -------Commodore Trivia Edition #27 Questions and Answers Preface-------- Not to leave you in the dark for too long, here are the trivia answers to the previous edition of Commodore Trivia. I am posting the answers at this time, and will post the scores and winners in a few days. This time frame is set up to allow time for any discussions on the correctness of these answers. By this time, the newest edition of trivia has been posted. I encourage you to enter it. This edition of trivia answers has been posted to the USENET newsgroups: comp.sys.cbm, alt.folklore.computers, and comp.sys.amiga.advocacy. It has also been posted to the FidoNET CBM Echo. Feel free to use these trivia answers in newsletters, magazines, and other publications (please see disclaimer). If you use the trivia, I would appreciate knowing where it has ended up. If you intend to use this information, please wait a few days after the posting date to allow for major errors to be corrected. Please mail any new questions for upcoming trivia (with answers) to my address. This edition and previous editions the trivia can be obtained from my mailserver. To: brain@mail.msen.com Subject: MAILSERV Body: send trivia1 quit This will retrieve the first edition of the trivia. Replace the number with the edition you want. **NEW** Interested persons can now subscribe to the Trivia Mailing List. To add your name to the list, please mail a message: To: brain@mail.msen.com Subject: MAILSERV Body: subscribe trivia Firstname Lastname help quit Each new edition of the trivia will be automatically mailed to you when it is made available on the Internet. I try to post the answers for the questions shortly after the monthly contest has ended. However, I usually wait a few days for any errors I may have made to be worked out before scoring the contest. -------Commodore Trivia Edition #27 Questions and Answers (BEGIN)-------- Q $1A0) Commodore produced an assembler for the 128 called HCD65. What does HCD stand for? A $1A0) Hedly C. Davis, the writer of the assembler. Q $1A1) Who wrote most of RAM DOS? A $1A1) Although many assume Fred Bowen wrote RAMDOS, Hedly Davis actually wrote the bulk of it. Q $1A2) What is the name of the first C64 disk copy program? (hint: it sported a "gas gauge".) A $1A2) 1541 Backup. Q $1A3) What was the case color of the original Commodore 64s? A $1A3) Ivory, just like the case color of the VIC-20. In fact, early cases WERE VIC-20 cases. Q $1A4) There are at least two ways to enter 64 mode from 128 mode on a C128: go 64 and sys 65357. They produce the same result (64 mode), but they differ in at least one noticable way. How? A $1A4) sys 65357 doesn't ask the "Are You Sure?" question. Q $1A5) What CPU powers the B-128 computer system? A $1A5) The 6509 CPU. Q $1A6) What type of drive mechanisms are in the D series hard drives from Commodore? A $1A6) The D9060 and D9090 drives used "Winchester" hard drive mechanisms. Q $1A7) Commodore produced a 16kB RAM expander for the Commodore VIC-20. What is its model number? A $1A7) The VIC-1111. Q $1A8) Commodore produced at least one disk drive with an optical track one sensor. Which drive? A $1A8) Certain early versions of the 1541C drive had a functional track 1 sensor. Later, due to compatibilitty problems, it was disabled, and then later, the sensor was removed from the mechanism. Q $1A9) The Commodore PET series used the IEEE bus to communicate with peripherals. Each peripheral had a unique ID. What range of IDs are supported by the PET? A $1A9) IDs 4-15 are supported, although you cannot connect all 12 devices up at one time. Q $1AA) Many people have developed Commodore software with the PAL assembler. What does PAL stand for? A $1AA) Personal Assembly Language (PAL). Q $1AB) Many people remember Compute's Gazette. This magazine is best known for the word processor program it shared with thousands of subscribers. Name the program? A $1AB) SpeedScript. Q $1AC) In some 6502 assemblers, the opcode "bge" is available. It stands for "branch if greater than or equal to". What more common opcode is this opcode referring to? A $1AC) bcs (Branch Carry Set) Q $1AD) If I wanted to do a "blt" (branch if result less than), what 6502 opcode would i use? A $1AD) bcc (Branch Carry Clear) Q $1AE) Each Commodore peripheral has a device number, which is associated with a type of device. 8-15 implied disk drive, 4-5 implies printer. These have remained constant from the PET to the C128. However, one peripheral in the PET was phased out and its device number was reused. What device number was reused? A $1AE) Device #2. The PET systems used #2 as a second tape drive, but in the newer computers, #2 referes to the RS-232 port. Q $1AF) What is the maximum amount of general purpose RAM can one utilize in a stock C64? (I need an exact number here) A $1AF) In the Ultimax memory configuration, if you guarantee no interrupts can occur, one can utilize all but the first two memory locations for general purpose RAM, giving 65534 bytes of RAM. If you can't guarantee you'll never receive an NMI, you lose 2 more bytes for that vector, giving 65532 bytes available. The information in this between the lines marked by (BEGIN) and (END) is copyright 1996 by Jim Brain. Provided that the information between the (BEGIN) and (END) lines is not changed except to correct typographical errors, the so marked copyrighted information may be reproduced in its entirety on other networks or in other mediums. For more information about using this file, please contact the address shown below. Jim Brain brain@mail.msen.com 602 North Lemen Fenton, MI 48430 (810) 737-7300 x8528 --------Commodore Trivia Edition #27 Questions and Answers (END)--------- -- Jim Brain, Embedded System Designer, Brain Innovations, Inc. (BII)(offline sig) brain@mail.msen.com "Above views DO reflect my employer, since I'm my employer" Dabbling in WWW, Embedded Systems, VR, Old CBM computers, and Good Times! -Me- Jim Brain: BII, VR, and CBM info