My thought was that `vslidedown` with an immediate 1 technically does less work than slide1down, and maybe they special cases that one in hardware, but that see

My thought was that `vslidedown` with an immediate 1 technically does less work than slide1down, and maybe they special cases that one in hardware, but that seems quite unlikely. Edit: actually idk if there is a version of `vslidedown` that is allowed to set the values to an undefined state.