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CPM OPERATING SYSTEMS/CPM 2.X/CPM 2.2/PATCHES/CPM22PAT.01

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+                                      CP/M   V2.2 
+                               Patch 01, MOVCPM, 1/21/82 
+
+                          Copyright   1982 by Digital Research
+                  CP/M is a registered trademark of Digital Research.
+                        DDT is a trademark of Digital Research.
+                                 Compiled November 1982
+
+          Program:  MOVCPM
+          Products and Serial Numbers Affected:  CP/M  V2.2
+
+          Error Description:
+
+               The following modification affects only CP/M systems  that  use
+          the optional blocking  and deblocking  algorithms listed in the CP/M
+          Operating System Manual.   When you  update  a  file  under  systems
+          using  the algorithms with no data added to the file, the last block
+          of updated records is not written to  that  file.   Contact  Digital
+          Reserach  or  your CP/M distributor if you are not certain that this
+          patch applies to your system.
+
+          Patch Procedure:
+
+               Make a back-up copy of MOVCPM.COM before you use DDT   to  make
+          the  following  changes.  Use  the  Assemble command (A) and the Set
+          command (S).  After you make the  changes,  return  to  the  Console
+          Command  Processor using the G0 command and save the modified memory
+          image on disk.  Update the  memory  image  on  tracks  0  and  1  by
+          executing the new MOVCPM program as described in the CP/M  Operating
+          System Manual and by integrating your customized I/O system.
+
+
+                  A>ddt movcpm.com
+                  DDT VERS 2.0
+                  NEXT PC
+                  2700 0100
+                  -alcd2
+                  1CD2 nop                      Old instructions were
+                  1CD3 nop                      DCR C
+                  1CD4 lxi h,0                  DCR C
+                  1CD7 .                        JNZ 12DF
+
+
+                  -G0
+                                               Number of pages to save
+                                               is determined from value
+                                               displayed under NEXT.
+                  A>save 38 movcpm.com
+
+
+
+
+
+
+               Install  this  patch  on  all  CP/M  systems   that   use   the
+          blocking/deblocking algorithms  listed in  the CP/M Operating System
+          Manual.
+
+               Licensed users are granted the right to include  these  changes
+          in CP/M V2.2 software.