small optimization; fix line buffered read of length 0

[cc65] / libsrc / atari / dio_stc.s

diff --git a/libsrc/atari/dio_stc.s b/libsrc/atari/dio_stc.s
index fbb518f0b478c4250da4d54dde2336deafa6697d..b74e49283f0c54f58294ffba6669fe7b7c264563 100644 (file)
--- a/libsrc/atari/dio_stc.s
+++ b/libsrc/atari/dio_stc.s
@@ -7,28 +7,28 @@
 ; on the Atari this function is a dummy, it returns
 ; cylinder and head 0 and as sector the sectnum it got
 ;
-; unsigned char __fastcall__ _dio_log_to_phys(_dhandle_t handle,
-;                                            _dio_phys_pos *physpos,   /* output */
-;                                            _sectnum_t *sectnum);     /* input */
+; unsigned char __fastcall__ dio_log_to_phys(dhandle_t handle,
+;                                           sectnum_t *sectnum,        /* input */
+;                                           dio_phys_pos *physpos);    /* output */
 ;
-; _dhandle_t - 16bit (ptr)
-; _sectnum_t - 16bit
+; dhandle_t - 16bit (ptr)
+; sectnum_t - 16bit
 ;
 
-       .export         __dio_log_to_phys
+       .export         _dio_log_to_phys
        .include        "atari.inc"
        .importzp       ptr1,ptr2,ptr3
        .import         popax,__oserror
 
-.proc  __dio_log_to_phys
+.proc  _dio_log_to_phys
 
-       sta     ptr1
-       stx     ptr1+1          ; save pointer to input data
-
-       jsr     popax
        sta     ptr2
        stx     ptr2+1          ; pointer to output structure
 
+       jsr     popax
+       sta     ptr1
+       stx     ptr1+1          ; save pointer to input data
+
        jsr     popax
        sta     ptr3
        stx     ptr3+1          ; pointer to handle
@@ -57,7 +57,6 @@
 _l1:   lda     (ptr1,x)
        sta     (ptr2),y
 
-       ldx     #0
        txa
 ret:
        sta     __oserror