Made two GEOS directory functions return NULL if they can't give a valid entry.

2020-10-29 17:54:56 -04:00
parent d8e6fa61bb
commit aad17a6f05
3 changed files with 23 additions and 22 deletions
--- a/libsrc/geos-common/file/get1stdirentry.s
+++ b/libsrc/geos-common/file/get1stdirentry.s
@@ -1,7 +1,7 @@
 ;
-; Maciej 'YTM/Alliance' Witkowiak
+; 1999-10-26, Maciej 'YTM/Alliance' Witkowiak
+; 2020-10-29, Greg King
 ;
-; 26.10.99

 ; struct filehandle* Get1stDirEntry (void);

@@ -15,9 +15,9 @@ _Get1stDirEntry:
        jsr Get1stDirEntry
        stx __oserror
        txa
-        beq L0                  ; error?
-        jmp return0             ; return NULL
-
-L0:     lda r5L
+        bne L1                  ; jump if disk error
+        lda r5L
        ldx r5H
        rts
+
+L1:     jmp return0             ; return NULL if not valid entry