def construct(s, EntryType):
# Interface
s.enq = EnqIfcRTL(EntryType)
s.deq = DeqIfcRTL(EntryType)
s.count = OutPort(Bits1)
# Components
s.entry = Wire(EntryType)
s.full = Wire(Bits1)
s.bypass_mux = Mux(EntryType, 2)(
in_={
0: s.enq.msg,
1: s.entry
},
out=s.deq.ret,
sel=s.full,
)
# Logic
s.count //= s.full
s.enq.rdy //= lambda: ~s.reset & ~s.full
s.deq.rdy //= lambda: ~s.reset & (s.full | s.enq.en)
@s.update_ff
def ff_bypass1():
s.full <<= ~s.reset & (~s.deq.en & (s.enq.en | s.full))
if s.enq.en & ~s.deq.en:
s.entry <<= s.enq.msg
def construct(s, EntryType):
# Interface
s.enq = EnqIfcRTL(EntryType)
s.deq = DeqIfcRTL(EntryType)
s.count = OutPort(Bits1)
# Components
s.entry = Wire(EntryType)
s.full = Wire(Bits1)
# Logic
s.count //= s.full
s.deq.ret //= s.entry
s.enq.rdy //= lambda: ~s.reset & (~s.full | s.deq.en)
s.deq.rdy //= lambda: s.full & ~s.reset
@s.update_ff
def ff_pipe1():
s.full <<= ~s.reset & (s.enq.en | s.full & ~s.deq.en)
if s.enq.en:
s.entry <<= s.enq.msg
def construct(s, EntryType):
# Interface
s.enq = EnqIfcRTL(EntryType)
s.deq = DeqIfcRTL(EntryType)
s.count = OutPort(Bits1)
# Components
s.entry = Wire(EntryType)
s.full = Wire(Bits1)
connect(s.count, s.full)
# Logic
@s.update_on_edge
def up_full():
if s.reset:
s.full = b1(0)
else:
s.full = ~s.deq.en & (s.enq.en | s.full)
@s.update_on_edge
def up_entry():
if s.enq.en:
s.entry = s.enq.msg
@s.update
def up_enq_rdy():
if s.reset:
s.enq.rdy = b1(0)
else:
s.enq.rdy = ~s.full
@s.update
def up_deq_rdy():
s.deq.rdy = s.full & ~s.reset
connect(s.entry, s.deq.msg)
def construct(s, EntryType, num_entries=2):
# Interface
s.enq = EnqIfcRTL(EntryType)
s.deq = DeqIfcRTL(EntryType)
s.count = OutPort(mk_bits(clog2(num_entries + 1)))
# Components
assert num_entries > 0
if num_entries == 1:
s.q = BypassQueue1EntryRTL(EntryType)
connect(s.enq, s.q.enq)
connect(s.deq, s.q.deq)
connect(s.count, s.q.count)
else:
s.ctrl = BypassQueueCtrlRTL(num_entries)
s.dpath = BypassQueueDpathRTL(EntryType, num_entries)
# Connect ctrl to data path
connect(s.ctrl.wen, s.dpath.wen)
connect(s.ctrl.waddr, s.dpath.waddr)
connect(s.ctrl.raddr, s.dpath.raddr)
connect(s.ctrl.mux_sel, s.dpath.mux_sel)
# Connect to interface
connect(s.enq.en, s.ctrl.enq_en)
connect(s.enq.rdy, s.ctrl.enq_rdy)
connect(s.deq.en, s.ctrl.deq_en)
connect(s.deq.rdy, s.ctrl.deq_rdy)
connect(s.count, s.ctrl.count)
connect(s.enq.msg, s.dpath.enq_msg)
connect(s.deq.ret, s.dpath.deq_ret)