bram $__XILINX_RAM16X1D
  init 1
  abits 4
  dbits 1
  groups 2
  ports  1 1
  wrmode 0 1
  enable 0 1
  transp 0 0
  clocks 0 1
  clkpol 0 2
endbram


match $__XILINX_RAM16X1D
  min bits 2
  min wports 1
  make_outreg
endmatch