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|
{-|
Module : VeriFuzz.Simulator.Icarus
Description : Icarus verilog module.
Copyright : (c) 2018-2019, Yann Herklotz Grave
License : BSD-3
Maintainer : ymherklotz [at] gmail [dot] com
Stability : experimental
Portability : POSIX
Icarus verilog module.
-}
module VeriFuzz.Simulator.Icarus where
import Control.Lens
import Data.ByteString ( ByteString )
import qualified Data.ByteString as B
import Data.Foldable ( fold )
import Data.Hashable
import Data.List ( transpose )
import Prelude hiding ( FilePath )
import Shelly
import VeriFuzz.Simulator.General
import VeriFuzz.Verilog
data Icarus = Icarus { icarusPath :: FilePath
, vvpPath :: FilePath
}
instance Simulator Icarus where
toText _ = "iverilog"
instance Simulate Icarus where
runSim = runSimIcarus
defaultIcarus :: Icarus
defaultIcarus = Icarus "iverilog" "vvp"
addDisplay :: [Stmnt] -> [Stmnt]
addDisplay s = concat $ transpose
[ s
, replicate l $ TimeCtrl 1 Nothing
, replicate l . SysTaskEnable $ Task "display" ["%h", Id "y"]
]
where l = length s
assignFunc :: [Port] -> ByteString -> Stmnt
assignFunc inp bs =
NonBlockAssign . Assign conc Nothing . Number (B.length bs * 4) $ bsToI bs
where conc = RegConcat (portToExpr <$> inp)
runSimIcarus :: Icarus -> ModDecl -> [ByteString] -> Sh Int
runSimIcarus sim m bss = do
let tb = ModDecl
"main"
[]
[]
[ Initial
$ fold (addDisplay $ assignFunc (m ^. modInPorts) <$> bss)
<> (SysTaskEnable $ Task "finish" [])
]
let newtb = instantiateMod m tb
let modWithTb = VerilogSrc $ Description <$> [newtb, m]
writefile "main.v" $ genSource modWithTb
run_ (icarusPath sim) ["-o", "main", "main.v"]
hash <$> run (vvpPath sim) ["main"]
|
