; hash_init(alg, context);
hash_init:
    pop bc,de,hl
    push hl,de,bc
    // if (! [l < hash_alg_count]); return false;
    ld h, 9
    mlt hl
    ld bc, hash_func_lookup
    add hl, bc
    ld iy, (hl)
    ld bc, 9
    ldir
    jp (iy)