cc65/libsrc/apple2/systime.s

;
; Ullrich von Bassewitz, 12.11.2002
;
; time_t _systime (void);
; /* Similar to time(), but:
;  *   - Is not ISO C
;  *   - Does not take the additional pointer
;  *   - Does not set errno when returning -1
;  */
;

        .export		__systime

        .include	"zeropage.inc"

__systime:
        lda     #$FF
        tax
        sta     sreg
        sta     sreg+1
        rts                     ; Return -1