src/scoreboard/reg_select.py

   1 from nmigen import Elaboratable, Module, Signal
   2
   3
   4 class RegReservation(Elaboratable):
   5     def __init__(self, fu_count):
   6         self.fu_count = fu_count
   7         self.dest_rsel_i = Signal(fu_count, reset_less=True)
   8         self.src1_rsel_i = Signal(fu_count, reset_less=True)
   9         self.src2_rsel_i = Signal(fu_count, reset_less=True)
  10         self.dest_rsel_o = Signal(reset_less=True)
  11         self.src1_rsel_o = Signal(reset_less=True)
  12         self.src2_rsel_o = Signal(reset_less=True)
  13
  14     def elaboratable(self, platform):
  15         m = Module()
  16         m.d.comb += self.dest_rsel_o.eq(self.dest_rsel_i.bool())
  17         m.d.comb += self.src1_rsel_o.eq(self.src1_rsel_i.bool())
  18         m.d.comb += self.src2_rsel_o.eq(self.src2_rsel_i.bool())
  19         return m
  20