Fix for Issue #324 ZPM Named Directory Handling Error

Credit to Jose Luis for discovering this bug and bringing it to my attention.  The fix is a small patch on top of the patches previously applied from Jon Saxton.  See the ZPM3 directory in Sources for  more information.

Source/Images/d_zpm3/u0/ROMWBW.TXT

@@ -21,7 +21,7 @@ Per ZPM3 standard, files are distributed across different user areas
 depending on their usage.  Normal applications are in user 15.  Help
 files in user 10.  Configuration files in user 14.
 
-In addition to the applications provided in the ZPM3 distributio, the
+In addition to the applications provided in the ZPM3 distribution, the
 normal CP/M 3 files are included in user area 15.  A few typical ZCPR
 utility programs are also included in user area 15:
 
@@ -41,8 +41,23 @@ utility programs are also included in user area 15:
  - ZP
  - SHOW (named ZSHOW)
  - ZXD
+ - EDITNDR
+ - SAVENDR
+ - SDZ
 
 It is a bit confusing, but the ZPM3 system file is called CPM3.SYS.
 This is the ZPM3 default configuration and I guess it is done this
 way to maximize compatibility with CP/M 3.  You will notice that the
 startup banner will indicate ZPM3.
+
+In 2015, Jon Saxton released a patched version of ZPM3.  The changes
+are documented in ZPM3FIX.TXT in the RomWBW distribution in the
+Source/ZPM3 directory.  RomWBW uses the patched version of
+ZPM3.  However, Jose Luis discovered that named directories do not
+work properly with these patches (see RomWBW GitHub Issue #324). I have
+subsequenty added a small patch to correct this.  The original
+unpatched copies of RESBDOS.SPR and BNKBDOS.SPR are included in the 
+RomWBW build directory for ZPM3 as RESBDOS.SPR.bak and 
+BNKBDOS.SPR.bak.  If you want to revert to the unpatched release of 
+ZPM3, just overlay RESBDOS.SPR and BNKBDOS.SPR with the .bak variants 
+and regenerate RomWBW.

Source/Images/fd_zpm3.txt

@@ -25,16 +25,16 @@
 ../../Binary/Apps/cpuspd.com 15:
 ../../Binary/Apps/fat.com 15:
 ../../Binary/Apps/fdu.com 15:
-../../Binary/Apps/fdu.doc 15:
+#../../Binary/Apps/fdu.doc 15:
 ../../Binary/Apps/mode.com 15:
 ../../Binary/Apps/rtc.com 15:
 ../../Binary/Apps/survey.com 15:
 ../../Binary/Apps/syscopy.com 15:
 ../../Binary/Apps/sysgen.com 15:
 ../../Binary/Apps/talk.com 15:
-../../Binary/Apps/tbasic.com 15:
+#../../Binary/Apps/tbasic.com 15:
 ../../Binary/Apps/timer.com 15:
-../../Binary/Apps/tune.com 15:
+#../../Binary/Apps/tune.com 15:
 ../../Binary/Apps/xm.com 15:
 #
 # Add Common Applications

Source/ZPM3/Notes.txt

@@ -28,3 +28,13 @@ sync the rdSeq procedure back to the DIR CPMLDR version.
 This seems to allow ZPMLDR to work with RomWBW now.
 
 --WBW  4:22 PM 12/8/2021
+
+Jose Luis reported that attempting to change to a different
+DU by using a named directory was not working correctly.
+It was working with the original ZPM3 distribution, but not
+with the Jon Saxton patches.  Refer to the RomWBW Issue
+https://github.com/wwarthen/RomWBW/issues/324.  I was able
+to track down the issue and have applied an additional
+patch to correct the Jon Saxton variant.
+
+--WBW 8:46 PM 3/12/2023

Source/ver.inc

@@ -2,7 +2,7 @@
 #DEFINE	RMN	2
 #DEFINE	RUP	0
 #DEFINE	RTP	0
-#DEFINE BIOSVER	"3.2.0-rc.5"
+#DEFINE BIOSVER	"3.2.0-rc.6"
 #define rmj	RMJ
 #define rmn	RMN
 #define rup	RUP

Source/ver.lib

@@ -3,5 +3,5 @@ rmn	equ	2
 rup	equ	0
 rtp	equ	0
 biosver	macro
-	db	"3.2.0-rc.5"
+	db	"3.2.0-rc.6"
 	endm