ram distributed $__NX_XRFB_64x18_ { abits 6; width 18; cost 10; init no_undef; prune_rom; port sw "W" { clock anyedge; } port ar "R" { } } ram distributed $__NX_XRFB_32x36_ { abits 5; width 36; cost 10; init no_undef; prune_rom; port sw "W" { clock anyedge; } port ar "R" { } }