from soc.experiment.compalu import ComputationUnitNoDelay
from soc.experiment.compalu_multi import MultiCompUnit, go_record
-from soc.experiment.compldst import LDSTCompUnit
-from soc.experiment.testmem import TestMemory
+from soc.experiment.compldst_multi import LDSTCompUnit
+from soc.experiment.compldst_multi import CompLDSTOpSubset
+from soc.experiment.l0_cache import TstL0CacheBuffer
from soc.experiment.alu_hier import ALU, BranchALU, CompALUOpSubset
from soc.decoder.power_enums import InternalOp, Function
from soc.decoder.power_decoder import (create_pdecode)
from soc.decoder.power_decoder2 import (PowerDecode2)
+from soc.decoder.power_decoder2 import Decode2ToExecute1Type
+
from soc.simulator.program import Program
class CompUnitLDSTs(CompUnitsBase):
- def __init__(self, rwid, opwid, n_ldsts, mem):
+ def __init__(self, rwid, opwid, n_ldsts, l0):
""" Inputs:
* :rwid: bit width of register file(s) - both FP and INT
self.opwid = opwid
# inputs
- self.op = CompALUOpSubset("cua_i")
-
- # Int ALUs
- self.alus = []
- for i in range(n_ldsts):
- self.alus.append(ALU(rwid))
+ self.op = CompLDSTOpSubset("cul_i")
+ # LD/ST Units
units = []
- for i, alu in enumerate(self.alus):
- # XXX disable the 2nd memory temporarily
- if i == 0:
- debugtest = False
- else:
- debugtest = True
- units.append(LDSTCompUnit(rwid, alu, mem, debugtest=debugtest))
+ for i in range(n_ldsts):
+ pi = l0.l0.dports[i].pi
+ units.append(LDSTCompUnit(pi, rwid, awid=48))
CompUnitsBase.__init__(self, rwid, units, ldstmode=True)
m = CompUnitsBase.elaborate(self, platform)
comb = m.d.comb
- # hand the same operation to all units, 4 lower bits though
- for alu in self.units:
- comb += alu.oper_i.eq(self.op)
- comb += alu.isalu_i.eq(0)
+ # hand the same operation to all units
+ for ldst in self.units:
+ comb += ldst.oper_i.eq(self.op)
return m
# inputs
self.op = CompALUOpSubset("cua_i")
- self.oper_i = Signal(opwid, reset_less=True)
- self.imm_i = Signal(rwid, reset_less=True)
# Int ALUs
alus = []
# hand the subset of operation to ALUs
for alu in self.units:
comb += alu.oper_i.eq(self.op)
- #comb += alu.oper_i[0:3].eq(self.oper_i)
- #comb += alu.imm_i.eq(self.imm_i)
return m
self.fpregs = RegFileArray(rwid, n_regs)
# Memory (test for now)
- self.mem = TestMemory(self.rwid, 8) # not too big, takes too long
+ self.l0 = TstL0CacheBuffer()
# issue q needs to get at these
self.aluissue = IssueUnitGroup(2)
self.lsissue = IssueUnitGroup(2)
self.brissue = IssueUnitGroup(1)
# and these
- self.alu_op = CompALUOpSubset("alu")
+ self.instr = Decode2ToExecute1Type("sc_instr")
self.br_oper_i = Signal(4, reset_less=True)
self.br_imm_i = Signal(rwid, reset_less=True)
self.ls_oper_i = Signal(4, reset_less=True)
m.submodules.intregs = self.intregs
m.submodules.fpregs = self.fpregs
- m.submodules.mem = mem = self.mem
+ m.submodules.l0 = l0 = self.l0
# register ports
int_dest = self.intregs.write_port("dest")
# LDST Comp Units
n_ldsts = 2
- cul = CompUnitLDSTs(self.rwid, 4, self.lsissue.n_insns, self.mem)
+ cul = CompUnitLDSTs(self.rwid, 4, self.lsissue.n_insns, l0)
# Comp Units
m.submodules.cu = cu = CompUnitsBase(self.rwid, [cua, cul, cub])
]
# take these to outside (issue needs them)
- comb += cua.op.eq(self.alu_op)
+ comb += cua.op.eq_from_execute1(self.instr)
comb += cub.oper_i.eq(self.br_oper_i)
comb += cub.imm_i.eq(self.br_imm_i)
- comb += cul.op.eq(self.alu_op) # TODO: separate ls_op?
+ comb += cul.op.eq_from_execute1(self.instr)
# TODO: issueunit.f (FP)
# TODO: adr_rel_o needs to go into L1 Cache. for now,
# just immediately activate go_adr
- comb += cul.go_ad_i.eq(cul.adr_rel_o)
+ sync += cul.go_ad_i.eq(cul.adr_rel_o)
# connect up address data
comb += memfus.addrs_i[0].eq(cul.units[0].addr_o)
comb += sc.int_src1_i.eq(src1)
comb += sc.int_src2_i.eq(src2)
comb += sc.reg_enable_i.eq(1) # enable the regfile
+ comb += sc.instr.eq(instr)
# choose a Function-Unit-Group
with m.If(fu == Function.ALU): # alu
- comb += sc.alu_op.eq_from_execute1(instr)
comb += sc.aluissue.insn_i.eq(1) # enable alu issue
comb += wait_issue_alu.eq(1)
with m.Elif(fu == Function.LDST): # ld/st
- comb += sc.alu_op.eq_from_execute1(instr) # XXX separate ls_op?
comb += sc.lsissue.insn_i.eq(1) # enable ldst issue
comb += wait_issue_ls.eq(1)
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