cc65/libsrc/cbm/telldir.s

36 lines
498 B
ArmAsm

;
; Ullrich von Bassewitz, 2012-06-03
;
; Based on C code by Groepaz
;
; long __fastcall__ telldir (DIR *dir);
;
.include "dir.inc"
.include "zeropage.inc"
.proc _telldir
sta ptr1
stx ptr1+1
; Clear high word of returned value
lda #0
sta sreg
sta sreg+1
; Return dir->off
ldy #DIR::off+1
lda (ptr1),y
tax
dey
lda (ptr1),y
rts
.endproc