-----------------------------------------------------------------
---April 27, 1993
---Copyright Simeon Cran
---This information pertains to the MYZ80 package version 1.11
---May be distributed freely as long as the file is not modified 
   in any way.
---No responsibility for the accuracy of this document is accepted 
   by the author.
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SPECIAL INFORMATION  YOU NEED TO KNOW IF YOU ARE  UPGRADING  FROM
========================== VERSION 1.10 =========================
                =================================

Replace the CPM.EXE file, the KEY.COM, COLOUR.COM and COLDBOOT.COM 
utilities and the text files. All other files remain the same.



SPECIAL INFORMATION YOU NEED TO KNOW IF YOU ARE UPGRADING FROM AN
=============== EARLIER VERSION THAN VERSION 1.10 ===============
                =================================

NB: Always keep backups during the upgrade process.  Although  the 
chances of any data being lost are negligible,  it is  much better 
to be cautious than sorry.

The CPM.EXE file you have been using should  be replaced  with the 
new CPM.EXE file contained in this package.

The  disk  files  from  all  previous  releases  of  MYZ80  remain 
compatible with this release of MYZ80.

For  version  1.10 the  CP/M systems  are updated.   The CP/M  2.2 
system uses a different structure for  the ram  disk and  the CP/M 
3.0 system uses different sector sizes as well. You should replace 
BOOT.CPM to change the CP/M 2.2 system and CPM3.SYS to  change the 
CP/M 3.0 system. The old files will work however the D: drive will 
not be accessible. BOOT3.CPM  should be  replaced as  a matter  of 
course.

The MYZ80 utilities on  the disk  files in  this package  will not 
work  with  releases of  CPM.EXE prior  to version  1.10, and  the 
earlier releases of the utilities will not work with this  release 
of  CPM.EXE.   This  is  VERY IMPORTANT  to note  as when  you run 
CPM.EXE on  your  old  disk  files  you  may  not  be able  to use 
IMPORT.COM to import the new utilities. You MUST first import  the 
new IMPORT.COM to your old disk files using your old  CPM.EXE then 
run the  new CPM.EXE  with the  new IMPORT.COM  to import  all the 
other utilities.

Run  the  new  MYZ80  utilities  using   the  "//"   argument  for 
information  about  how  the  new  utilities  operate (e.g.   type 
"IMPORT //").

Any key definition files you  have from  versions before  1.03 are 
not compatible with this version of  MYZ80.  They  will not  cause 
harm however, and it is very easy to make new .KEY files with this 
release of the MYZ80 package.

The information files contained on the disk files in  this package 
have  been  upgraded. You  should read  them and  retain them  for 
future reference.

It  is  no longer  possible to  specify a  boot file  name on  the 
command line. This facility has been superceded by the ability  to 
specify a boot file name in the DOS environment. The  key name  is 
MYZ80BOOT so the command SET MYZ80BOOT=BOOT3.CPM will specify  the 
file  BOOT3.CPM  as  the  boot  file.   If  you  wish to  continue 
specifying the boot file on the command line, make a batch file as 
follows:
SET MYZ80BOOT=%1
CPM.EXE

Note also the keyword  MYZ80TERM to  specify the  default terminal 
emulation, and the use of MYZ80.CLR  as a  default colour  file in 
the same subdirectory as the CPM.EXE file.

End of File.
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