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quasar/src/main/scala/lib/lib.scala

420 lines
19 KiB
Scala
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package lib
import chisel3._
import chisel3.util._
import include._
trait lib extends param{
implicit def int2boolean(b:Int) = if (b==1) true else false
implicit def uint2bool(b:UInt) = b.asBool()
implicit def aslong(b:Int) = 0xFFFFFFFFL & b
def repl(b:Int, a:UInt) = VecInit.tabulate(b)(i => a).reduce(Cat(_,_))
def bridge_gen(tag: Int, ahb_type: Boolean) = if(BUILD_AXI4) flip(tag, ahb_type) else ahb_bridge_gen(ahb_type)
def flip(tag: Int , ahb_type: Boolean) = if(ahb_type) Flipped(new axi_channels(tag)) else new axi_channels(tag)
def ahb_bridge_gen(ahb_type: Boolean) = if(ahb_type) new Bundle{
val sig = Flipped(new ahb_channel())
val hsel = Input(Bool())
val hreadyin = Input(Bool())}
else new ahb_channel()
def MEM_CAL : (Int, Int, Int, Int)=
(ICACHE_WAYPACK, ICACHE_ECC) match{
case(0,0) => (68, 22, 68, 22)
case(0,1) => (71, 26, 71, 26)
case(1,0) => (68*ICACHE_NUM_WAYS, 22*ICACHE_NUM_WAYS, 68, 22)
case(1,1) => (71*ICACHE_NUM_WAYS, 26*ICACHE_NUM_WAYS, 71, 26)
}
val DATA_MEM_LINE = MEM_CAL
val Tag_Word = MEM_CAL._4
object rvsyncss {
def apply(din:UInt,clk:Clock) =withClock(clk){RegNext(withClock(clk){RegNext(din,0.U)},0.U)}
}
///////////////////////////////////////////////////////////////////
def btb_tag_hash(pc : UInt) =
VecInit.tabulate(3)(i => pc(BTB_ADDR_HI-1+((i+1)*(BTB_BTAG_SIZE)),BTB_ADDR_HI+(i*BTB_BTAG_SIZE))).reduce(_^_)
///////////////////////////////////////////////////////////////////
def btb_tag_hash_fold(pc : UInt) =
pc(BTB_ADDR_HI+(2*BTB_BTAG_SIZE),BTB_ADDR_HI+BTB_BTAG_SIZE+1)^pc(BTB_ADDR_HI+BTB_BTAG_SIZE,BTB_ADDR_HI+1)
///////////////////////////////////////////////////////////////////
def btb_addr_hash(pc : UInt) =
if(BTB_FOLD2_INDEX_HASH) pc(BTB_INDEX1_HI-1,BTB_INDEX1_LO-1) ^ pc(BTB_INDEX3_HI-1,BTB_INDEX3_LO-1)
else (pc(BTB_INDEX1_HI-1,BTB_INDEX1_LO-1) ^ pc(BTB_INDEX2_HI-1,BTB_INDEX2_LO-1) ^ pc(BTB_INDEX3_HI-1,BTB_INDEX3_LO-1))
///////////////////////////////////////////////////////////////////
def btb_ghr_hash(hashin : UInt, ghr :UInt) =
if(BHT_GHR_HASH_1) Cat(ghr(BHT_GHR_SIZE-1,BTB_INDEX1_HI-1), hashin(BTB_INDEX1_HI,2) ^ ghr(BTB_INDEX1_HI-2,0))
else hashin(BHT_GHR_SIZE+1,2) ^ ghr(BHT_GHR_SIZE-1,0)
///////////////////////////////////////////////////////////////////
def rveven_paritycheck(data_in:UInt, parity_in:UInt) : UInt =
(data_in.xorR.asUInt) ^ parity_in
///////////////////////////////////////////////////////////////////
def rveven_paritygen(data_in : UInt) =
data_in.xorR.asUInt
///////////////////////////////////////////////////////////////////
//rvbradder(Cat(pc, 0.U), Cat(offset, 0.U))
def rvbradder (pc:UInt, offset:UInt) = {
val dout_lower = pc(12,1) +& offset(12,1)
val pc_inc = pc(31,13)+1.U
val pc_dec = pc(31,13)-1.U
val sign = offset(12)
Cat(Mux1H(Seq(( sign ^ !dout_lower(dout_lower.getWidth-1)).asBool -> pc(31,13),
(!sign & dout_lower(dout_lower.getWidth-1)).asBool -> pc_inc,
( sign & !dout_lower(dout_lower.getWidth-1)).asBool -> pc_dec)), dout_lower(11,0), 0.U)
}
///////////////////////////////////////////////////////////////////
// RV range
def rvrangecheck(CCM_SADR:Int, CCM_SIZE:Int, addr:UInt) = {
val REGION_BITS = 4;
val MASK_BITS = 10 + log2Ceil(CCM_SIZE)
val start_addr = aslong(CCM_SADR).U(32.W)
val region = start_addr(31,32-REGION_BITS)
val in_region = addr(31,(32-REGION_BITS)) === region
val in_range = if(CCM_SIZE==48)
(addr(31, MASK_BITS) === start_addr(31,MASK_BITS)) & ~addr(MASK_BITS-1 , MASK_BITS-2).andR
else addr(31,MASK_BITS) === start_addr(31,MASK_BITS)
(in_region, in_range)
}
def rvlsadder(rs1:UInt,offset:UInt) = {
val w1 = Cat(0.U(1.W),rs1(11,0)) + Cat(0.U(1.W),offset(11,0)) //w1[12] =cout offset[11]=sign
val dout_upper = ((Fill(20, ~(offset(11) ^ w1(12)))) & rs1(31,12)) |
((Fill(20, ~offset(11) & w1(12))) & (rs1(31,12)+1.U)) |
((Fill(20, offset(11) & ~w1(12))) & (rs1(31,12)-1.U))
Cat(dout_upper,w1(11,0))
}
///////////////////////////////////////////////////////////////////
def rvmaskandmatch(mask:UInt, data:UInt, masken:Bool):UInt={
val matchvec = Wire(Vec(data.getWidth,UInt(1.W)))
val masken_or_fullmask = masken & ~mask.andR
matchvec(0) := masken_or_fullmask | (mask(0) === data(0)).asUInt
for(i <- 1 to data.getWidth-1)
matchvec(i) := Mux(mask(i-1,0).andR & masken_or_fullmask,"b1".U,(mask(i) === data(i)).asUInt)
matchvec.asUInt.andR()
}
///////////////////////////////////////////////////////////////////
def configurable_gw(clk : Clock, rst:AsyncReset, extintsrc_req_sync : Bool, meigwctrl_polarity: Bool, meigwctrl_type: Bool, meigwclr: Bool) = {
val din = WireInit(Bool(), 0.U)
val dout = withClockAndReset(clk, rst){RegNext(din, false.B)}
din := (extintsrc_req_sync ^ meigwctrl_polarity) | (dout & !meigwclr)
Mux(meigwctrl_type, (extintsrc_req_sync ^ meigwctrl_polarity) | dout, extintsrc_req_sync ^ meigwctrl_polarity)
}
///////////////////////////////////////////////////////////////////
// Move rvecc_encode to a proper trait
def rvecc_encode(din:UInt):UInt = {
def pat(y : List[Int]) = (0 until y.size).map(i=> din(y(i))).reduce(_^_)
val w0 = pat(List(0, 1, 3, 4, 6, 8, 10, 11, 13, 15, 17, 19, 21, 23, 25, 26, 28, 30))
val w1 = pat(List(0, 2, 3, 5, 6, 9, 10, 12, 13, 16, 17, 20, 21, 24, 25, 27, 28, 31))
val w2 = pat(List(1, 2, 3, 7, 8, 9, 10, 14, 15, 16, 17, 22, 23, 24, 25, 29, 30, 31))
val w3 = pat(List(4, 5, 6, 7, 8, 9, 10, 18, 19, 20, 21, 22, 23, 24, 25))
val w4 = pat(List(11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25))
val w5 = pat(List(26, 27, 28, 29, 30, 31))
val w6 = Cat(w5,w4,w3,w2,w1,w0)
Cat(din.xorR ^ w6.xorR, w6)
}
class rvecc_encode extends Module{ //Done for verification and testing
val io = IO(new Bundle{
val din = Input(UInt(32.W))
val ecc_out = Output(UInt(7.W))
})
val mask0 = Array(1,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,1,0,1,0,1,0)
val mask1 = Array(1,0,1,1,0,1,1,0,0,1,1,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,1,1,0,0,1)
val mask2 = Array(0,1,1,1,0,0,0,1,1,1,1,0,0,0,1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,1,1,1)
val mask3 = Array(0,0,0,0,1,1,1,1,1,1,1,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,0,0,0,0,0,0)
val mask4 = Array(0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0)
val mask5 = Array(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1)
val w0 = Wire(Vec(18,UInt(1.W)))
val w1 = Wire(Vec(18,UInt(1.W)))
val w2 = Wire(Vec(18,UInt(1.W)))
val w3 = Wire(Vec(15,UInt(1.W)))
val w4 = Wire(Vec(15,UInt(1.W)))
val w5 = Wire(Vec(6, UInt(1.W)))
var j = 0;var k = 0;var m = 0;
var x = 0;var y = 0;var z = 0;
for(i <- 0 to 31)
{
if(mask0(i)==1) {w0(j) := io.din(i); j = j +1 }
if(mask1(i)==1) {w1(k) := io.din(i); k = k +1 }
if(mask2(i)==1) {w2(m) := io.din(i); m = m +1 }
if(mask3(i)==1) {w3(x) := io.din(i); x = x +1 }
if(mask4(i)==1) {w4(y) := io.din(i); y = y +1 }
if(mask5(i)==1) {w5(z) := io.din(i); z = z +1 }
}
val w6 = Cat((w5.asUInt.xorR),(w4.asUInt.xorR),(w3.asUInt.xorR),(w2.asUInt.xorR),(w1.asUInt.xorR),(w0.asUInt.xorR))
io.ecc_out := Cat(io.din.xorR ^ w6.xorR, w6)
}
def rvecc_decode(en:UInt,din:UInt,ecc_in:UInt,sed_ded:UInt)= {
val mask0 = Array(1,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,1,0,1,0,1,0)
val mask1 = Array(1,0,1,1,0,1,1,0,0,1,1,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,1,1,0,0,1)
val mask2 = Array(0,1,1,1,0,0,0,1,1,1,1,0,0,0,1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,1,1,1)
val mask3 = Array(0,0,0,0,1,1,1,1,1,1,1,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,0,0,0,0,0,0)
val mask4 = Array(0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0)
val mask5 = Array(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1)
val w0 = Wire(Vec(18,UInt(1.W)))
val w1 = Wire(Vec(18,UInt(1.W)))
val w2 = Wire(Vec(18,UInt(1.W)))
val w3 = Wire(Vec(15,UInt(1.W)))
val w4 = Wire(Vec(15,UInt(1.W)))
val w5 = Wire(Vec(6,UInt(1.W)))
var j = 0;var k = 0;var m = 0; var n =0;
var x = 0;var y = 0;
for(i <- 0 to 31)
{
if(mask0(i)==1) {w0(j) := din(i); j = j +1 }
if(mask1(i)==1) {w1(k) := din(i); k = k +1 }
if(mask2(i)==1) {w2(m) := din(i); m = m +1 }
if(mask3(i)==1) {w3(n) := din(i); n = n +1 }
if(mask4(i)==1) {w4(x) := din(i); x = x +1 }
if(mask5(i)==1) {w5(y) := din(i); y = y +1 }
}
val ecc_check = Cat((din.xorR ^ ecc_in.xorR) & ~sed_ded ,ecc_in(5)^(w5.asUInt.xorR),ecc_in(4)^(w4.asUInt.xorR),ecc_in(3)^(w3.asUInt.xorR),ecc_in(2)^(w2.asUInt.xorR),ecc_in(1)^(w1.asUInt.xorR),ecc_in(0)^(w0.asUInt.xorR))
val single_ecc_error = en & (ecc_check=/= 0.U) & ecc_check(6)
val double_ecc_error = en & (ecc_check=/= 0.U) & ~ecc_check(6)
val error_mask = Wire(Vec(39,UInt(1.W)))
for(i <- 1 until 40){
error_mask(i-1) := ecc_check(5,0) === i.asUInt
}
val din_plus_parity = Cat(ecc_in(6), din(31,26), ecc_in(5), din(25,11), ecc_in(4), din(10,4), ecc_in(3), din(3,1), ecc_in(2), din(0), ecc_in(1,0))
val dout_plus_parity = Mux(single_ecc_error.asBool, (error_mask.asUInt ^ din_plus_parity), din_plus_parity)
val dout = Cat(dout_plus_parity(37,32),dout_plus_parity(30,16), dout_plus_parity(14,8), dout_plus_parity(6,4), dout_plus_parity(2))
val ecc_out = Cat(dout_plus_parity(38) ^ (ecc_check(6,0) === "b1000000".U(7.W)), dout_plus_parity(31), dout_plus_parity(15), dout_plus_parity(7), dout_plus_parity(3), dout_plus_parity(1,0))
(ecc_out,dout,single_ecc_error,double_ecc_error)
}
class rvecc_encode_64 extends Module{ //Done for verification and testing
val io = IO(new Bundle{
val din = Input(UInt(64.W))
val ecc_out = Output(UInt(7.W))
})
val mask0 = Array(1,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,1,0,1,0,1,0,1)
val mask1 = Array(1,0,1,1,0,1,1,0,0,1,1,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,1,1,0,0,1,1)
val mask2 = Array(0,1,1,1,0,0,0,1,1,1,1,0,0,0,1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,1,1,1,1)
val mask3 = Array(0,0,0,0,1,1,1,1,1,1,1,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0)
val mask4 = Array(0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0)
val mask5 = Array(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0)
val mask6 = Array(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1)
val w0 = Wire(Vec(35,UInt(1.W)))
val w1 = Wire(Vec(35,UInt(1.W)))
val w2 = Wire(Vec(35,UInt(1.W)))
val w3 = Wire(Vec(31,UInt(1.W)))
val w4 = Wire(Vec(31,UInt(1.W)))
val w5 = Wire(Vec(31,UInt(1.W)))
val w6 = Wire(Vec(7, UInt(1.W)))
var j = 0;var k = 0;var m = 0; var n =0;
var x = 0;var y = 0;var z = 0
for(i <- 0 to 63)
{
if(mask0(i)==1) {w0(j) := io.din(i); j = j +1 }
if(mask1(i)==1) {w1(k) := io.din(i); k = k +1 }
if(mask2(i)==1) {w2(m) := io.din(i); m = m +1 }
if(mask3(i)==1) {w3(n) := io.din(i); n = n +1 }
if(mask4(i)==1) {w4(x) := io.din(i); x = x +1 }
if(mask5(i)==1) {w5(y) := io.din(i); y = y +1 }
if(mask6(i)==1) {w6(z) := io.din(i); z = z +1 }
}
io.ecc_out := Cat((w6.asUInt.xorR),(w5.asUInt.xorR),(w4.asUInt.xorR),(w3.asUInt.xorR),(w2.asUInt.xorR),(w1.asUInt.xorR),(w0.asUInt.xorR))
}
def rvecc_encode_64(din:UInt):UInt = {
val mask0 = Array(1,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,1,0,1,0,1,0,1)
val mask1 = Array(1,0,1,1,0,1,1,0,0,1,1,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,1,1,0,0,1,1)
val mask2 = Array(0,1,1,1,0,0,0,1,1,1,1,0,0,0,1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,1,1,1,1)
val mask3 = Array(0,0,0,0,1,1,1,1,1,1,1,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0)
val mask4 = Array(0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0)
val mask5 = Array(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0)
val mask6 = Array(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1)
val w0 = Wire(Vec(35,UInt(1.W)))
val w1 = Wire(Vec(35,UInt(1.W)))
val w2 = Wire(Vec(35,UInt(1.W)))
val w3 = Wire(Vec(31,UInt(1.W)))
val w4 = Wire(Vec(31,UInt(1.W)))
val w5 = Wire(Vec(31,UInt(1.W)))
val w6 = Wire(Vec(7, UInt(1.W)))
var j = 0;var k = 0;var m = 0; var n =0;
var x = 0;var y = 0;var z = 0
for(i <- 0 to 63)
{
if(mask0(i)==1) {w0(j) := din(i); j = j +1 }
if(mask1(i)==1) {w1(k) := din(i); k = k +1 }
if(mask2(i)==1) {w2(m) := din(i); m = m +1 }
if(mask3(i)==1) {w3(n) := din(i); n = n +1 }
if(mask4(i)==1) {w4(x) := din(i); x = x +1 }
if(mask5(i)==1) {w5(y) := din(i); y = y +1 }
if(mask6(i)==1) {w6(z) := din(i); z = z +1 }
}
Cat((w6.asUInt.xorR),(w5.asUInt.xorR),(w4.asUInt.xorR),(w3.asUInt.xorR),(w2.asUInt.xorR),(w1.asUInt.xorR),(w0.asUInt.xorR))
}
def rvecc_decode_64(en:UInt,din:UInt,ecc_in:UInt) = {
val mask0 = Array(1,1,0,1,1,0,1,0,1,0,1,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1,1,0,1,0,1,0,1)
val mask1 = Array(1,0,1,1,0,1,1,0,0,1,1,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,0,1,1,0,1,1,0,0,1,1)
val mask2 = Array(0,1,1,1,0,0,0,1,1,1,1,0,0,0,1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,1,1,1,1)
val mask3 = Array(0,0,0,0,1,1,1,1,1,1,1,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0)
val mask4 = Array(0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0)
val mask5 = Array(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0)
val mask6 = Array(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1)
val w0 = Wire(Vec(35,UInt(1.W)))
val w1 = Wire(Vec(35,UInt(1.W)))
val w2 = Wire(Vec(35,UInt(1.W)))
val w3 = Wire(Vec(31,UInt(1.W)))
val w4 = Wire(Vec(31,UInt(1.W)))
val w5 = Wire(Vec(31,UInt(1.W)))
val w6 = Wire(Vec(7, UInt(1.W)))
var j = 0;var k = 0;var m = 0; var n =0;
var x = 0;var y = 0;var z = 0
for(i <- 0 to 63)
{
if(mask0(i)==1) {w0(j) := din(i); j = j +1 }
if(mask1(i)==1) {w1(k) := din(i); k = k +1 }
if(mask2(i)==1) {w2(m) := din(i); m = m +1 }
if(mask3(i)==1) {w3(n) := din(i); n = n +1 }
if(mask4(i)==1) {w4(x) := din(i); x = x +1 }
if(mask5(i)==1) {w5(y) := din(i); y = y +1 }
if(mask6(i)==1) {w6(z) := din(i); z = z +1 }
}
val ecc_check = Cat((ecc_in(6) ^ w6.asUInt.xorR) ,ecc_in(5)^(w5.asUInt.xorR),ecc_in(4)^(w4.asUInt.xorR),ecc_in(3)^(w3.asUInt.xorR),ecc_in(2)^(w2.asUInt.xorR),ecc_in(1)^(w1.asUInt.xorR),ecc_in(0)^(w0.asUInt.xorR))
val ecc_error = en & (ecc_check(6,0) =/= 0.U)
ecc_error
}
class gated_latch extends BlackBox with HasBlackBoxResource {
val io = IO(new Bundle {
val Q = Output(Clock())
val CK = Input(Clock())
val EN = Input(Bool())
val SE = Input(Bool())
})
addResource("/vsrc/gated_latch.sv")
}
class rvclkhdr extends Module {
val io = IO(new Bundle {
val l1clk = Output(Clock())
val clk = Input(Clock())
val en = Input(Bool())
val scan_mode = Input(Bool())
})
val clkhdr = { Module(new gated_latch) }
io.l1clk := clkhdr.io.Q
clkhdr.io.CK := io.clk
clkhdr.io.EN := io.en
clkhdr.io.SE := io.scan_mode
}
object rvclkhdr {
def apply(clk: Clock, en: Bool, scan_mode: Bool): Clock = {
val cg = Module(new rvclkhdr)
cg.io.clk := clk
cg.io.en := en
cg.io.scan_mode := scan_mode
cg.io.l1clk
}
}
object rvoclkhdr {
def apply(clk: Clock, en: Bool, scan_mode: Bool): Clock = {
val cg = Module(new rvclkhdr)
cg.io.clk := clk
cg.io.en := en
cg.io.scan_mode := 0.U
cg.io.l1clk
}
}
def rvrangecheck_ch(addr:UInt,CCM_SADR:UInt, CCM_SIZE:Int=128) = {
val REGION_BITS = 4
val MASK_BITS = 10 + log2Ceil(CCM_SIZE)
val start_addr = CCM_SADR
val region = start_addr(31,(32-REGION_BITS))
val in_region = (addr(31,(32-REGION_BITS)) === region(REGION_BITS-1,0)).asUInt
val in_range = Wire(UInt(1.W))
if(CCM_SIZE == 48)
in_range := (addr(31,MASK_BITS) === start_addr(31,MASK_BITS)).asUInt & ~(addr(MASK_BITS-1,MASK_BITS-2).andR.asUInt)
else
in_range := (addr(31,MASK_BITS) === start_addr(31,MASK_BITS)).asUInt
(in_range,in_region)
}
////rvdffe ///////////////////////////////////////////////////////////////////////
object rvdffe {
def apply(din: UInt, en: Bool, clk: Clock, scan_mode: Bool): UInt = {
val obj = Module(new rvclkhdr())
val l1clk = obj.io.l1clk
obj.io.clk := clk
obj.io.en := en
obj.io.scan_mode := scan_mode
withClock(l1clk) {
RegNext(din, 0.U)
}
}
def apply(din: Bundle, en: Bool, clk: Clock, scan_mode: Bool) = {
val obj = Module(new rvclkhdr())
val l1clk = obj.io.l1clk
obj.io.clk := clk
obj.io.en := en
obj.io.scan_mode := scan_mode
withClock(l1clk) {
RegNext(din,0.U.asTypeOf(din.cloneType))
}
}
def apply(din: SInt, en: Bool, clk: Clock, scan_mode: Bool): Bits with Num[_ >: SInt with UInt <: Bits with Num[_ >: SInt with UInt]] = {
val obj = Module(new rvclkhdr())
val l1clk = obj.io.l1clk
obj.io.clk := clk
obj.io.en := en
obj.io.scan_mode := scan_mode
withClock(l1clk) {
RegNext(din, 0.S)
}
}
}
/////////////////////////////////////////////////////////
def rvtwoscomp(din:UInt) = { //Done for verification and testing
val temp = Wire(Vec(din.getWidth-1,UInt(1.W)))
for(i <- 1 to din.getWidth-1){
temp(i-1) := Mux(din(i-1,0).orR ,~din(i),din(i))
}
Cat(temp.asUInt,din(0))
}
//implicit def bool2int(b:Boolean): Int = if (b) 1 else 0
}
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