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Path: utzoo!linus!philabs!mcnc!ecsvax!ubsims
From: ubsims@ecsvax.UUCP (William K. Sims)
Newsgroups: net.micro.cbm
Subject: Re: 1571 ROM Upgrade
Message-ID: <1649@ecsvax.UUCP>
Date: Mon, 2-Jun-86 20:38:56 EDT
Article-I.D.: ecsvax.1649
Posted: Mon Jun  2 20:38:56 1986
Date-Received: Wed, 4-Jun-86 00:40:18 EDT
References: <278@cbmvax.cbmvax.cbm.UUCP>
Organization: North Carolina Educational Computing Service
Lines: 97

> 
> 
> 
>                 SU: Release Notes 1571 ROM upgrade
>                 FM: D. Siracusa
>                 DT: 05/20/86
>                 Rev. to ROM 310654-03 
> 
> 
>           I would appreciate any comments to the bugs or anomolies
>           listed below before I make release for the 1571.
> 
> 
> 
>       1.  Previously during a BURST GCR FORMAT the  activity  led  was
>           not activated.  This has been remedied (1571).
> 
>       2.  A bug in routine 'STLBUF' prevented  buffer  allocation  and
>           caused the SAVE@ bug.  This has been remedied (1541/1571).
> 
>       3.  The 1571 Burst Load Utility would not load  'Locked  Files'.
>           This has been remedied (1571).
> 
>       4.  A bug in routine 'TSTATN' caused device not present  errors,
>           the irq source was never cleared in the 6522.  This has been
>           remedied (1541/1571).
> 
>       5.  Previously an active collect in 1541  emulation  mode  would
>           write  a zero to the double sided flag in the BAM.  This has
>           been remedied (1541/1571).
> 
>       6.  Previously BAM allocation on side one would  write  the  BAM
>           image  to the diskette every access.  This has been remedied
>           (1571).
> 
>       7.  In Routine 'SPINP' interrupts from SP  (fast  serial  input)
>           were not enabled properly, this has been remedied but has no
>           affect on the operation of the serial bus (1571).
> 
>       8.  Previously if a copy was performed addressing drive one, the
>           error  channel  would  return status 00, OK,00,00.  This has
>           been remedied (1541/1571).
> 
>       9.  Motor acceleration time for the MFM controller was too  long
>           and  affected  performance  when  reading and writing in MFM
>           format.  This has been remedied (1571).
> 
>       10. Previously  determining   whether   a   diskette   was   GCR
>           double-sided  or  single-sided  would  take  too long due to
>           valid sync  pulses  found  on  'flippy  diskettes'  and  MFM
>           diskettes.  This has been remedied (1571).
> 
>       11. Previously the rom test did not check the first page in  ROM
>           memory.  This has been remedied (1571).
> 
>       12. Previously while loading files using the Burst Load  Utility
>           retries were not performed properly.  This has been remedied
> 	  (1571).
> 
>       13. Due to a bug in  routine  'USEDTS'  a  block  not  available
>           status  was returned when blocks free were equal to 3.  This
>           has been remedied (1541/1571).
> 
>       14. With multiple files open and sectors  being  allococated  on
>           both  sides  the  BAM swapper mechanism would trash BAM side
>           one.  This has been remedied (1571).
> 
> 
> 
> 
> 
>           NOTE:  Below (1541/1571) implies that the bug occured in the
>           1541  as  well as the 1571 disk drive.  While (1571) implies
>           that the bug only occured in the 1571 disk drive.
> 
> 
> 
> *************************************************************************
> *     David Siracusa	   Commodore Business Machines        		*
> *         		   uucp: {ihnp4|seismo|caip}!cbmvax!siracusa    *
> *  		           arpa: cbmvax!siracusa@seismo.css.GOV         *
> *		           (or)  siracusa@cbmvax.UUCP@{seismo|harvard}  *
> *			   TEL : (215) 431-9100			        *
> *			   ADD : 1200 Wilson Drive			*
> *				 West Chester, Pa 19380			*
> *************************************************************************


Thanks Dave, That's good to know.  How do I, the owner of C128 and 
two 1571 disk drives get the up dated versions of the rom's??
When I call up there and try to talk to someone I alwauys get the
RUN AROUND------ Please advise ---
******************************************************************^*
Bill Sims, Univ. of North Carolins --- (ubsims@ecsvax).
******************************************************************
98c
98p