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cc65/libsrc/cbm510/kopen.s

21 lines
474 B
ArmAsm

;
; 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