[ISMAP]-Deja News Toolbar Interest Finder Browse Groups New On Our Site! Search ______________________________ Find Find messages in the [complete] archive Happy Holidays From Deja News Sun Microsystems. Who's .com-ming the world? Sun Microsystems. Who's .com-ming the world? Message 43 of 190 return to comp.sys.cbm [USEMAP] previous · post reply · next help Re: C128D more options Author: Cameron Kaiser Email: cdkaiser@delete.these.four.words.concentric.net Date: 1998/12/28 Forums: comp.sys.cbm more headers author profile view thread _________________________________________________________________ Nicolas Welte writes: >The B command is not listed in the 1570/71 manual, so it doesn't exist. >But I just had a look into my 1581 manual and the R command is somewhat >different, as it seems. Bit 7 is responsible for something called >"nichtadressierbare Hilfsspeicher" (I have the German manual) and I have >absolutely no idea what they mean with that! What's the English >expression for that? I'll have a look at Project64 if they have the >English manual right now... Non-addressable storage bit? I thought that a Speicher was an attic, though :-) I'll save you some trouble -- the 1581 manual, at least in the U.S., doesn't even break down the command parametre. As far as it's concerned, you get all eight bits -- doesn't say anything about bit 7 being reserved. -- CHGUTL UTILITY byte bit 7 6 5 4 3 2 1 0 00 0 1 0 1 0 1 0 1 01 0 0 1 1 0 0 0 0 02 X X X 1 1 1 1 0 03 utility commands: 'b','s','r','t','v',#dev,'mr','mw' 04 command parameter SWITCHES: X-don't care UTILITY COMMANDS: 'b'-serial bus mode 's'-DOS sector interleave 'r'-DOS retries 't'-ROM signature analysis 'v'-verify select #dev-device # Note: Byte 02 is equivalent to '>'. EXAMPLES: "u0>b1" - fast serial, "u0>b0" - slow serial "u0>s"+chr$(sector interleave) "u0>r"+chr$(retries) "u0>t" (if the ROM signature failed, the activity LED blinks 4 times) "u0>v0" - disk verify ON, "u0>v1" - disk verify OFF "u0>"+chr$(#dev), where #dev = 4- 30 "u0>mr"+chr$(>memory address)+(# of pages) [# or chr$???] "u0>mw"+chr$(>memory address)+(# of pages) Burst memory read and memory write use standard burst protocol (without status bytes). -- >>You would think that if it starts up in 1541 mode, it automatically goes to >>single sided mode, but it doesn't. I had to send the u0>m0 outright to get >>it to work. >Do you have it connected to a C128? My 1571 always goes to 1541 mode if >I switch it on without a 128 connected, or if I enter 64 mode with C= >and reset. No problems so far. It's a 128DCR internal drive. Now, of course, it's going to prove me a liar and behave to specs. I'm wondering what I was doing before to make it behave like that. >>By the way, I have just discovered that trying to access a single-sided disk >>with the head flipped over causes interesting and possibly damaging activity >>to the drive (grrrRRRRRRR KLACK KLACK KLACK t-t-TICK bzzz ... [power switch]) . >Yeah, that's funny. Also try this with a double sided (1571 mode) disk: >u0>m0 and then u0>h1. Krrrtttt krrrttt and again and again... (power >off) No thanks, I want to keep it working :-) I didn't know my reaction time was that good until it started going berserk. *grin* -- Cameron Kaiser * cdkaiser.cris@com * powered by eight bits * operating on faith -- supporting the Commodore 64/128: http://computerworkshops.home.ml.org/ -- head moderator comp.binaries.cbm * cbm special forces unit $ea31 (tincsf) personal page http://calvin.ptloma.edu/~spectre/ * "when in doubt, take a pawn" _________________________________________________________________ Email a Friend Sponsored by: Audio Book Club [USEMAP] previous · post reply · next help Sun Microsystems. Who's .com-ming the world? Sun Microsystems. Who's .com-ming the world? Home · Search · My Deja News · Post · Power Search · Help · How are we doing? FREE STUFF @FreeShop! | Developer Resources | Express by Infoseek NextCard VISA 2.9% intro APR | Directories | Shopping | Auctions & Classifieds Yellow Pages | Four audio books for a penny! | Get Great Deals at uBid! Trade Now! with Datek Online | Win CASH on Uproar game shows! New Users · About Deja News · Ad Info · Our Advertisers · Deja News Store Free Web Email · Link to Deja News · Create Your Own Community _________________________________________________________________ Copyright © 1995-98 Deja News, Inc. All rights reserved. Conditions of use. Site privacy statement reviewed by TRUSTe.