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Implement DBG instruction

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Bartłomiej Przemysław Pluta
2021-11-08 22:00:54 +01:00
parent 4fe325e6e8
commit bf5d24fc84
1 changed files with 7 additions and 0 deletions
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7
app/VirtualMachine.hs
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@@ -54,6 +54,7 @@ data Op = Nop -- 0x00
| Ld -- 0x15
| In -- 0x16
| Out -- 0x17
| Dbg -- 0x18
deriving (Eq, Ord, Enum, Show, Read, Bounded)
type Args = [Int]
@@ -103,6 +104,7 @@ instructions = [ Simple { _op = Nop, _noParams = 0, _noPops = 0, _sAction = (\
, Complex { _op = Jge, _noParams = 1, _noPops = 1, _cAction = jumpIf (>=) }
, Complex { _op = Jle, _noParams = 1, _noPops = 1, _cAction = jumpIf (<=) }
, Complex { _op = Out, _noParams = 0, _noPops = 1, _cAction = output }
, Complex { _op = Dbg, _noParams = 0, _noPops = 0, _cAction = debug }
]
jumpIf :: (Int -> Int -> Bool) -> VM -> Args -> Pops -> ExceptT String IO VM
@@ -117,6 +119,11 @@ output vm _ (char:_) = do
liftIO $ putStr $ [chr char]
return vm { _pc = _pc vm + 1, _stack = S.drop 1 $ _stack vm}
debug :: VM -> Args -> Pops -> ExceptT String IO VM
debug vm _ _ = do
liftIO $ print vm
return vm { _pc = _pc vm + 1 }
instructionByOp :: M.Map Op Instruction
instructionByOp = M.fromList $ map (\i -> (_op i, i)) instructions