fix comments

[cc65] / libsrc / apple2 / initcwd.s

diff --git a/libsrc/apple2/initcwd.s b/libsrc/apple2/initcwd.s
index 77aa1442f06999eb8810f5c0e9b9982069d4256d..6ed914ca63e7582292ab35dce991ef027512b467 100644 (file)
--- a/libsrc/apple2/initcwd.s
+++ b/libsrc/apple2/initcwd.s
@@ -4,21 +4,14 @@
 
         .export         initcwd
         .import                __cwd
-        .import                subysp, addysp
 
         .include       "zeropage.inc"
         .include        "mli.inc"
 
-        .segment       "INIT"
-
 initcwd:
-        ; Alloc prefix buffer
-        ldy    #1 + 64+1       ; Length byte + max pathname length+trailing slash
-        jsr    subysp
-
-        ; Use allocated prefix buffer
-        lda    sp
-        ldx    sp+1
+        ; Set static prefix buffer
+        lda    #<__cwd
+        ldx    #>__cwd
         sta     mliparam + MLI::PREFIX::PATHNAME
         stx     mliparam + MLI::PREFIX::PATHNAME+1
 
@@ -26,24 +19,22 @@ initcwd:
         lda     #GET_PREFIX_CALL
         ldx     #PREFIX_COUNT
         jsr     callmli
-        bcs    done
 
         ; Check for null prefix
-        ldy    #$00
-        lda    (sp),y
-        beq    done
-
-        ; Set current working directory
-        ; - omit trailing slash and length byte
-        ; - terminating zero already in place
-        tay
-        dey
-:       lda    (sp),y
-        sta    __cwd-1,y
-        dey
-        bne    :-
-
-        ; Cleanup stack
-done:   ldy    #1 + 64+1       ; Length byte + max pathname length+trailing slash
-        jmp     addysp
-
+       lda     __cwd
+       beq     done
+
+       ; Remove length byte and trailing slash
+       sta     tmp1
+       ldx     #$01
+:      lda     __cwd,x
+       sta     __cwd - 1,x
+       inx
+       cpx     tmp1
+       bcc     :-
+
+       ; Add terminating zero
+       lda     #$00
+       sta     __cwd - 1,x
+       
+done:  rts