;
; Ullrich von Bassewitz, 27.09.1998
; Christian Krueger, 11-Mar-2017, added 65SC02 optimization
;
; CC65 runtime: modulo operation for long unsigned ints
;

        .export         tosumod0ax, tosumodeax
        .import         getlop, udiv32
        .importzp       sreg, tmp3, tmp4, ptr2

        .macpack        cpu

tosumod0ax:                          
.if (.cpu .bitand ::CPU_ISET_65SC02)
        stz     sreg
        stz     sreg+1
.else
        ldy     #$00
        sty     sreg
        sty     sreg+1
.endif

tosumodeax:
        jsr     getlop          ; Get the paramameters
        jsr     udiv32          ; Do the division
        lda     tmp3            ; Remainder is in ptr2:tmp3:tmp4
        sta     sreg
        lda     tmp4
        sta     sreg+1
        lda     ptr2
        ldx     ptr2+1
        rts