15 instructions 2 3store_src_rg xy = src.rg 4init_lane_masks CondMask = LoopMask = RetMask = true 5store_device_xy01 sk_FragCoord = DeviceCoords.xy01 6copy_4_slots_unmasked $0..3 = sk_FragCoord 7load_src src.rgba = $0..3 8