don't use constructor to setup runtime stack

[cc65] / libsrc / cbm / c_open.s

diff --git a/libsrc/cbm/c_open.s b/libsrc/cbm/c_open.s
index 23577f9d483dcc4fec7661b4cf2a42355aada469..b8f9527814aca1de6211c959b07909379ab9b4a1 100644 (file)
--- a/libsrc/cbm/c_open.s
+++ b/libsrc/cbm/c_open.s
@@ -4,13 +4,13 @@
 ; unsigned char __fastcall__ cbm_k_open (void);
 ;
 
-       .include        "cbm.inc"
-
                .export         _cbm_k_open
+        .import         OPEN
+
 
 _cbm_k_open:
        jsr     OPEN
+       ldx     #0              ; Clear high byte
        bcs     @NotOk
-        lda     #0
-@NotOk:        ldx     #0              ; Clear high byte
-        rts
+        txa
+@NotOk: rts