mirror of
https://github.com/yuzu-emu/unicorn
synced 2024-11-24 21:38:20 +00:00
74aaf3b321
These Haskell bindings make large use of c2hs to generate much of the code, so Unicorn's const_generator is not used. The emulator is based on the Either monad transformer. The IO monad is used to run the underlying Unicorn library, while the Either monad is used to handle errors. Instructions on how to build the bindings are located in bindings/haskell/README.TXT. The same samples found in samples/ can be found in bindings/haskell/samples. They should produce the same output, with slight differences in their error handling and messaging.
129 lines
3.8 KiB
Haskell
129 lines
3.8 KiB
Haskell
-- Sample code to demonstrate how to emulate Mips code (big endian)
|
|
|
|
import Unicorn
|
|
import Unicorn.Hook
|
|
import qualified Unicorn.CPU.Mips as Mips
|
|
|
|
import qualified Data.ByteString as BS
|
|
import Data.Word
|
|
import qualified Numeric as N (showHex)
|
|
|
|
-- Code to be emulated
|
|
--
|
|
-- ori $at, $at, 0x3456
|
|
mipsCodeEb :: BS.ByteString
|
|
mipsCodeEb = BS.pack [0x34, 0x21, 0x34, 0x56]
|
|
|
|
-- ori $at, $at, 0x3456
|
|
mipsCodeEl :: BS.ByteString
|
|
mipsCodeEl = BS.pack [0x56, 0x34, 0x21, 0x34]
|
|
|
|
-- Memory address where emulation starts
|
|
address :: Word64
|
|
address = 0x10000
|
|
|
|
-- Pretty-print integral as hex
|
|
showHex :: (Integral a, Show a) => a -> String
|
|
showHex =
|
|
flip N.showHex ""
|
|
|
|
-- Calculate code length
|
|
codeLength :: Num a => BS.ByteString -> a
|
|
codeLength =
|
|
fromIntegral . BS.length
|
|
|
|
hookBlock :: BlockHook ()
|
|
hookBlock _ addr size _ =
|
|
putStrLn $ ">>> Tracing basic block at 0x" ++ showHex addr ++
|
|
", block size = 0x" ++ (maybe "0" showHex size)
|
|
|
|
hookCode :: CodeHook ()
|
|
hookCode _ addr size _ =
|
|
putStrLn $ ">>> Tracing instruction at 0x" ++ showHex addr ++
|
|
", instruction size = 0x" ++ (maybe "0" showHex size)
|
|
|
|
testMipsEb :: IO ()
|
|
testMipsEb = do
|
|
putStrLn "Emulate MIPS code (big-endian)"
|
|
|
|
result <- runEmulator $ do
|
|
-- Initialize emulator in MIPS mode
|
|
uc <- open ArchMips [ModeMips32, ModeBigEndian]
|
|
|
|
-- Map 2MB memory for this emulation
|
|
memMap uc address (2 * 1024 * 1024) [ProtAll]
|
|
|
|
-- Write machine code to be emulated to memory
|
|
memWrite uc address mipsCodeEb
|
|
|
|
-- Initialise machine registers
|
|
regWrite uc Mips.Reg1 0x6789
|
|
|
|
-- Tracing all basic blocks with customized callback
|
|
blockHookAdd uc hookBlock () 1 0
|
|
|
|
-- Tracing one instruction at address with customized callback
|
|
codeHookAdd uc hookCode () address address
|
|
|
|
-- Emulate machine code in infinite time (last param = Nothing), or
|
|
-- when finishing all the code
|
|
let codeLen = codeLength mipsCodeEb
|
|
start uc address (address + codeLen) Nothing Nothing
|
|
|
|
-- Return the results
|
|
r1 <- regRead uc Mips.Reg1
|
|
|
|
return r1
|
|
case result of
|
|
Right r1 -> do
|
|
-- Now print out some registers
|
|
putStrLn ">>> Emulation done. Below is the CPU context"
|
|
putStrLn $ ">>> R1 = 0x" ++ showHex r1
|
|
Left err -> putStrLn $ "Failed with error: " ++ show err ++ " (" ++
|
|
strerror err ++ ")"
|
|
|
|
testMipsEl :: IO ()
|
|
testMipsEl = do
|
|
putStrLn "==========================="
|
|
putStrLn "Emulate MIPS code (little-endian)"
|
|
|
|
result <- runEmulator $ do
|
|
-- Initialize emulator in MIPS mode
|
|
uc <- open ArchMips [ModeMips32, ModeLittleEndian]
|
|
|
|
-- Map 2MB memory for this emulation
|
|
memMap uc address (2 * 1024 * 1024) [ProtAll]
|
|
|
|
-- Write machine code to be emulated to memory
|
|
memWrite uc address mipsCodeEl
|
|
|
|
-- Initialize machine registers
|
|
regWrite uc Mips.Reg1 0x6789
|
|
|
|
-- Tracing all basic blocks with customized callback
|
|
blockHookAdd uc hookBlock () 1 0
|
|
|
|
-- Tracing one instruction at address with customized callback
|
|
codeHookAdd uc hookCode () address address
|
|
|
|
-- Emulate machine code in infinite time (last param = Nothing), or
|
|
-- when finishing all the code
|
|
let codeLen = codeLength mipsCodeEl
|
|
start uc address (address + codeLen) Nothing Nothing
|
|
|
|
-- Return the results
|
|
r1 <- regRead uc Mips.Reg1
|
|
|
|
return r1
|
|
case result of
|
|
Right r1 -> do
|
|
-- Now print out some registers
|
|
putStrLn ">>> Emulation done. Below is the CPU context"
|
|
putStrLn $ ">>> R1 = 0x" ++ showHex r1
|
|
Left err -> putStrLn $ "Failed with error: " ++ show err ++ " (" ++
|
|
strerror err ++ ")"
|
|
|
|
main :: IO ()
|
|
main = do
|
|
testMipsEb
|
|
testMipsEl
|