Moved reusable parts of remove into oserrcheck.

Rewrote remove().
Added rename().


git-svn-id: svn://svn.cc65.org/cc65/trunk@2272 b7a2c559-68d2-44c3-8de9-860c34a00d81

libsrc/common/rename.s

@@ -0,0 +1,24 @@
+;
+; Ullrich von Bassewitz, 2003-08-12
+;
+; int __fastcall__ rename (const char* oldname, const char* newname);
+;
+
+        .export         _rename
+
+        .import         __sysrename
+        .import         oserrcheck
+
+
+;--------------------------------------------------------------------------
+
+.proc   _rename
+
+        jsr     __sysrename     ; Call the machine specific function
+        jmp     oserrcheck      ; Store into _oserror, set errno, return 0/-1
+
+.endproc
+
+
+
+