; ; Ullrich von Bassewitz, 2003-12-20 ; ; OPEN kernal call. ; ; NOTE: The OPEN system call in the CBM610 kernal is different from the ; standard. It evaluates the carry flag and does a normal open if carry clear ; and some strange things (output sa 15 + name on IEC) if carry set. To be ; compatible with our CBM file stuff, we have to clear the carry before ; calling the real OPEN. .export OPEN .proc OPEN clc jmp $FFC0 .endproc