p19g.asm

nextnode ;Check if last sibling ptr is 0
         lda lptr+1
         bne chkchild

         ;Set this struct as the first
         ;child of its parent struct

         #copyptr ptr,child

chkchild lda children
         beq nextrow   ;In root menu
         dec children
         bne nextrow
         rts           ;Return to parent

         ;Set this struct as the?previus
         ;sibling of the next struct

nextrow  #copyptr ptr,lptr
         jmp parserow

children .byte 0
child    .byte 0,0 ;non-ZP Pointer
         .bend