# Virtex 2, Virtex 2 Pro, Spartan 3, Spartan 3E block RAM rules.

bram $__XILINX_RAMB16
  init 1
  abits  9     @a9d36
  dbits 36     @a9d36
  abits 10     @a10d18
  dbits 18     @a10d18
  abits 11     @a11d9
  dbits  9     @a11d9
  abits 12     @a12d4
  dbits  4     @a12d4
  abits 13     @a13d2
  dbits  2     @a13d2
  abits 14     @a14d1
  dbits  1     @a14d1
  groups 2
  ports  1 1
  wrmode 0 1
  enable 1 1
  transp 0 0
  clocks 2 3
  clkpol 2 3
endbram

match $__XILINX_RAMB16
  min bits 4096
  min efficiency 5
  shuffle_enable B
  make_transp
endmatch