src/scoreboard/mem_fu_pending.py

   1 from nmigen import Elaboratable, Module, Signal, Cat
   2
   3
   4 class MemFU_Pend(Elaboratable):
   5     """ these are allocated per-FU (horizontally),
   6         and are of length reg_count
   7     """
   8     def __init__(self, reg_count):
   9         self.reg_count = reg_count
  10         self.ld_fwd_i = Signal(reg_count, reset_less=True)
  11         self.st_fwd_i = Signal(reg_count, reset_less=True)
  12
  13         self.reg_ld_pend_o = Signal(reset_less=True)
  14         self.reg_st_pend_o = Signal(reset_less=True)
  15
  16     def elaborate(self, platform):
  17         m = Module()
  18         m.d.comb += self.reg_ld_pend_o.eq(self.ld_fwd_i.bool())
  19         m.d.comb += self.reg_st_pend_o.eq(self.st_fwd_i.bool())
  20
  21         return m
  22