X-Git-Url: http://cloudbase.mooo.com/gitweb/z180-stamp-cpm3.git/blobdiff_plain/ea5293bb6ce484bf1ec9ab70befe10c3a36a70c2..4fc939ea71f1c4979525f2cb059da81a5e3fb07c:/cbios/cpm3slr.lib

diff --git a/cbios/cpm3slr.lib b/cbios/cpm3slr.lib
index 2414bf4..9d708af 100644
--- a/cbios/cpm3slr.lib
+++ b/cbios/cpm3slr.lib
@@ -49,10 +49,14 @@ dph macro ?trans,?dpb,?csize,?asize
 	db 0			; media flag
 	dw ?dpb			; disk parameter block
     if not nul ?csize
+      if ?csize = 0
+	dw 0			; permanently mounted, no checksum vector
+      else
 	dw ?csv			; checksum vector
+      endif
     else
-	dw 0FFFEh		; checksum vector allocated by
-    endif			; GENCPM
+	dw 0FFFEh		; checksum vector alloc'd by GENCPM
+    endif
     if not nul ?asize
 	dw ?alv			; allocation vector
     else
@@ -63,7 +67,9 @@ dph macro ?trans,?dpb,?csize,?asize
 	db 0			; hash bank
 
     if not nul ?csize
+      if ?csize <> 0
 ?csv	ds	?csize		; checksum vector
+      endif
     endif
     if not nul ?asize
 ?alv	ds	?asize		; allocation vector