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Parser.hs
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Parser.hs
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module Parser where
import DLX
clear_code s = filter (not . null) $ map (\x -> takeWhile (/=';') x) $ lines s
extract_addr s = int2bv (read (filter (/=' ') (takeWhile (/=':') s)) :: Int)
extract_instr True s
= let l = words $ drop 1 $ dropWhile (/=' ') $ drop 1 $ dropWhile (/=':') s
in
case head l of
"lb" -> I "lb" (l!!2) (l!!1) (read (l!!3) :: Int)
"lh" -> I "lh" (l!!2) (l!!1) (read (l!!3) :: Int)
"lw" -> I "lw" (l!!2) (l!!1) (read (l!!3) :: Int)
"lbu" -> I "lbu" (l!!2) (l!!1) (read (l!!3) :: Int)
"lhu" -> I "lhu" (l!!2) (l!!1) (read (l!!3) :: Int)
"sb" -> I "sb" (l!!2) (l!!1) (read (l!!3) :: Int)
"sh" -> I "sh" (l!!2) (l!!1) (read (l!!3) :: Int)
"sw" -> I "sw" (l!!2) (l!!1) (read (l!!3) :: Int)
"addi" -> I "addi" (l!!2) (l!!1) (read (l!!3) :: Int)
"subi" -> I "subi" (l!!2) (l!!1) (read (l!!3) :: Int)
"andi" -> I "andi" (l!!2) (l!!1) (read (l!!3) :: Int)
"ori" -> I "ori" (l!!2) (l!!1) (read (l!!3) :: Int)
"xori" -> I "xori" (l!!2) (l!!1) (read (l!!3) :: Int)
"lhgi" -> I "lhgi" "r0" (l!!1) (read (l!!2) :: Int)
"clri" -> I "clri" "r0" (l!!1) 0
"seti" -> I "seti" "r0" (l!!1) 0
"sgri" -> I "sgri" (l!!2) (l!!1) (read (l!!3) :: Int)
"seqi" -> I "seqi" (l!!2) (l!!1) (read (l!!3) :: Int)
"sgei" -> I "sgei" (l!!2) (l!!1) (read (l!!3) :: Int)
"slsi" -> I "slsi" (l!!2) (l!!1) (read (l!!3) :: Int)
"snei" -> I "snei" (l!!2) (l!!1) (read (l!!3) :: Int)
"slei" -> I "slei" (l!!2) (l!!1) (read (l!!3) :: Int)
"beqz" -> I "beqz" (l!!1) "r0" (read (l!!2) :: Int)
"bnez" -> I "bnez" (l!!1) "r0" (read (l!!2) :: Int)
"jr" -> I "jr" (l!!1) "r0" 0
"jalr" -> I "jalr" (l!!1) "r0" 0
"nop" -> I "addi" "r0" "r0" 0
"slli" -> R (l!!2) "r0" (l!!1) (read (l!!3) :: Int) "slli"
"srli" -> R (l!!2) "r0" (l!!1) (read (l!!3) :: Int) "srli"
"srai" -> R (l!!2) "r0" (l!!1) (read (l!!3) :: Int) "srai"
"sll" -> R (l!!2) (l!!3) (l!!1) 0 "sll"
"srl" -> R (l!!2) (l!!3) (l!!1) 0 "srl"
"sra" -> R (l!!2) (l!!3) (l!!1) 0 "sra"
"add" -> R (l!!2) (l!!3) (l!!1) 0 "add"
"sub" -> R (l!!2) (l!!3) (l!!1) 0 "sub"
"and" -> R (l!!2) (l!!3) (l!!1) 0 "and"
"or" -> R (l!!2) (l!!3) (l!!1) 0 "or"
"xor" -> R (l!!2) (l!!3) (l!!1) 0 "xor"
"lhg" -> R "r0" (l!!2) (l!!1) 0 "lhg"
"clr" -> R "r0" "r0" (l!!1) 0 "clr"
"set" -> R "r0" "r0" (l!!1) 0 "set"
"sgr" -> R (l!!2) (l!!3) (l!!1) 0 "sgr"
"seq" -> R (l!!2) (l!!3) (l!!1) 0 "seq"
"sge" -> R (l!!2) (l!!3) (l!!1) 0 "sge"
"sls" -> R (l!!2) (l!!3) (l!!1) 0 "sls"
"sne" -> R (l!!2) (l!!3) (l!!1) 0 "sne"
"sle" -> R (l!!2) (l!!3) (l!!1) 0 "sle"
"j" -> J "j" (read (l!!1) :: Int)
"jal" -> J "jal" (read (l!!1) :: Int)
_ -> Illegal
extract_instr False s
= let l = words $ drop 1 $ dropWhile (/=' ') $ drop 1 $ dropWhile (/=':') s
in
case head l of
"lb" -> I "lb" (l!!1) (l!!2) (read (l!!3) :: Int)
"lh" -> I "lh" (l!!1) (l!!2) (read (l!!3) :: Int)
"lw" -> I "lw" (l!!1) (l!!2) (read (l!!3) :: Int)
"lbu" -> I "lbu" (l!!1) (l!!2) (read (l!!3) :: Int)
"lhu" -> I "lhu" (l!!1) (l!!2) (read (l!!3) :: Int)
"sb" -> I "sb" (l!!1) (l!!2) (read (l!!3) :: Int)
"sh" -> I "sh" (l!!1) (l!!2) (read (l!!3) :: Int)
"sw" -> I "sw" (l!!1) (l!!2) (read (l!!3) :: Int)
"addi" -> I "addi" (l!!1) (l!!2) (read (l!!3) :: Int)
"subi" -> I "subi" (l!!1) (l!!2) (read (l!!3) :: Int)
"andi" -> I "andi" (l!!1) (l!!2) (read (l!!3) :: Int)
"ori" -> I "ori" (l!!1) (l!!2) (read (l!!3) :: Int)
"xori" -> I "xori" (l!!1) (l!!2) (read (l!!3) :: Int)
"lhgi" -> I "lhgi" "r0" (l!!1) (read (l!!2) :: Int)
"clri" -> I "clri" "r0" (l!!1) 0
"seti" -> I "seti" "r0" (l!!1) 0
"sgri" -> I "sgri" (l!!1) (l!!2) (read (l!!3) :: Int)
"seqi" -> I "seqi" (l!!1) (l!!2) (read (l!!3) :: Int)
"sgei" -> I "sgei" (l!!1) (l!!2) (read (l!!3) :: Int)
"slsi" -> I "slsi" (l!!1) (l!!2) (read (l!!3) :: Int)
"snei" -> I "snei" (l!!1) (l!!2) (read (l!!3) :: Int)
"slei" -> I "slei" (l!!1) (l!!2) (read (l!!3) :: Int)
"beqz" -> I "beqz" (l!!1) "r0" (read (l!!2) :: Int)
"bnez" -> I "bnez" (l!!1) "r0" (read (l!!2) :: Int)
"jr" -> I "jr" (l!!1) "r0" 0
"jalr" -> I "jalr" (l!!1) "r0" 0
"nop" -> I "addi" "r0" "r0" 0
"slli" -> R (l!!1) "r0" (l!!2) (read (l!!3) :: Int) "slli"
"srli" -> R (l!!1) "r0" (l!!2) (read (l!!3) :: Int) "srli"
"srai" -> R (l!!1) "r0" (l!!2) (read (l!!3) :: Int) "srai"
"sll" -> R (l!!1) (l!!2) (l!!3) 0 "sll"
"srl" -> R (l!!1) (l!!2) (l!!3) 0 "srl"
"sra" -> R (l!!1) (l!!2) (l!!3) 0 "sra"
"add" -> R (l!!1) (l!!2) (l!!3) 0 "add"
"sub" -> R (l!!1) (l!!2) (l!!3) 0 "sub"
"and" -> R (l!!1) (l!!2) (l!!3) 0 "and"
"or" -> R (l!!1) (l!!2) (l!!3) 0 "or"
"xor" -> R (l!!1) (l!!2) (l!!3) 0 "xor"
"lhg" -> R "r0" (l!!1) (l!!2) 0 "lhg"
"clr" -> R "r0" "r0" (l!!1) 0 "clr"
"set" -> R "r0" "r0" (l!!1) 0 "set"
"sgr" -> R (l!!1) (l!!2) (l!!3) 0 "sgr"
"seq" -> R (l!!1) (l!!2) (l!!3) 0 "seq"
"sge" -> R (l!!1) (l!!2) (l!!3) 0 "sge"
"sls" -> R (l!!1) (l!!2) (l!!3) 0 "sls"
"sne" -> R (l!!1) (l!!2) (l!!3) 0 "sne"
"sle" -> R (l!!1) (l!!2) (l!!3) 0 "sle"
"j" -> J "j" (read (l!!1) :: Int)
"jal" -> J "jal" (read (l!!1) :: Int)
_ -> Illegal
opc2id False [False,False,False,False,True,False] = "j"
opc2id False [False,False,False,False,True,True] = "jal"
opc2id False [False,False,False,True,False,False] = "beqz"
opc2id False [False,False,False,True,False,True] = "bnez"
opc2id False [False,False,True,False,False,True] = "addi"
opc2id False [False,False,True,False,True,True] = "subi"
opc2id False [False,False,True,True,False,False] = "andi"
opc2id False [False,False,True,True,False,True] = "ori"
opc2id False [False,False,True,True,True,False] = "xori"
opc2id False [False,False,True,True,True,True] = "lhgi"
opc2id False [False,True,False,True,True,False] = "jr"
opc2id False [False,True,False,True,True,True] = "jalr"
opc2id False [False,True,True,False,False,False] = "clri"
opc2id False [False,True,True,False,False,True] = "sgri"
opc2id False [False,True,True,False,True,False] = "seqi"
opc2id False [False,True,True,False,True,True] = "sgei"
opc2id False [False,True,True,True,False,False] = "slsi"
opc2id False [False,True,True,True,False,True] = "snei"
opc2id False [False,True,True,True,True,False] = "slei"
opc2id False [False,True,True,True,True,True] = "seti"
opc2id False [True,False,False,False,False,False] = "lb"
opc2id False [True,False,False,False,False,True] = "lh"
opc2id False [True,False,False,False,True,True] = "lw"
opc2id False [True,False,False,True,False,False] = "lbu"
opc2id False [True,False,False,True,False,True] = "lhu"
opc2id False [True,False,True,False,False,False] = "sb"
opc2id False [True,False,True,False,False,True] = "sh"
opc2id False [True,False,True,False,True,True] = "sw"
opc2id True [False,False,False,False,False,False] = "slli"
opc2id True [False,False,False,False,True,False] = "srli"
opc2id True [False,False,False,False,True,True] = "srai"
opc2id True [False,False,False,True,False,False] = "sll"
opc2id True [False,False,False,True,True,False] = "srl"
opc2id True [False,False,False,True,True,True] = "sra"
opc2id True [True,False,False,False,False,True] = "add"
opc2id True [True,False,False,False,True,True] = "sub"
opc2id True [True,False,False,True,False,False] = "and"
opc2id True [True,False,False,True,False,True] = "or"
opc2id True [True,False,False,True,True,False] = "xor"
opc2id True [True,False,False,True,True,True] = "lhg"
opc2id True [True,False,True,False,False,False] = "clr"
opc2id True [True,False,True,False,False,True] = "sgr"
opc2id True [True,False,True,False,True,False] = "seq"
opc2id True [True,False,True,False,True,True] = "sge"
opc2id True [True,False,True,True,False,False] = "sls"
opc2id True [True,False,True,True,False,True] = "sne"
opc2id True [True,False,True,True,True,False] = "sle"
opc2id True [True,False,True,True,True,True] = "set"
bv2instr i = let rtype = all (==f) (take 6 i)
opc = opc2id rtype (if rtype then drop 26 i else take 6 i)
rs1 = ("r" ++) $ show $ bv2nat $ slice (25,21) i
rs2 = ("r" ++) $ show $ bv2nat $ slice (20,16) i
rdI = ("r" ++) $ show $ bv2nat $ slice (20,16) i
rdR = ("r" ++) $ show $ bv2nat $ slice (15,11) i
immI = bv2int $ slice (15,0) i
immJ = bv2int $ slice (25,0) i
sa = bv2int $ slice (10,6) i
in
case opc of
"lb" -> I "lb" rs1 rdI immI
"lh" -> I "lh" rs1 rdI immI
"lw" -> I "lw" rs1 rdI immI
"lbu" -> I "lbu" rs1 rdI immI
"lhu" -> I "lhu" rs1 rdI immI
"sb" -> I "sb" rs1 rdI immI
"sh" -> I "sh" rs1 rdI immI
"sw" -> I "sw" rs1 rdI immI
"addi" -> I "addi" rs1 rdI immI
"subi" -> I "subi" rs1 rdI immI
"andi" -> I "andi" rs1 rdI immI
"ori" -> I "ori" rs1 rdI immI
"xori" -> I "xori" rs1 rdI immI
"lhgi" -> I "lhgi" "r0" rdI immI
"clri" -> I "clri" "r0" rdI 0
"seti" -> I "seti" "r0" rdI 0
"sgri" -> I "sgri" rs1 rdI immI
"seqi" -> I "seqi" rs1 rdI immI
"sgei" -> I "sgei" rs1 rdI immI
"slsi" -> I "slsi" rs1 rdI immI
"snei" -> I "snei" rs1 rdI immI
"slei" -> I "slei" rs1 rdI immI
"beqz" -> I "beqz" rs1 "r0" immI
"bnez" -> I "bnez" rs1 "r0" immI
"jr" -> I "jr" rs1 "r0" 0
"jalr" -> I "jalr" rs1 "r0" 0
"nop" -> I "addi" "r0" "r0" 0
"slli" -> R rs1 "r0" rdR sa "slli"
"srli" -> R rs1 "r0" rdR sa "srli"
"srai" -> R rs1 "r0" rdR sa "srai"
"sll" -> R rs1 rs2 rdR 0 "sll"
"srl" -> R rs1 rs2 rdR 0 "srl"
"sra" -> R rs1 rs2 rdR 0 "sra"
"add" -> R rs1 rs2 rdR 0 "add"
"sub" -> R rs1 rs2 rdR 0 "sub"
"and" -> R rs1 rs2 rdR 0 "and"
"or" -> R rs1 rs2 rdR 0 "or"
"xor" -> R rs1 rs2 rdR 0 "xor"
"lhg" -> R "r0" rs2 rdR 0 "lhg"
"clr" -> R "r0" "r0" rdR 0 "clr"
"set" -> R "r0" "r0" rdR 0 "set"
"sgr" -> R rs1 rs2 rdR 0 "sgr"
"seq" -> R rs1 rs2 rdR 0 "seq"
"sge" -> R rs1 rs2 rdR 0 "sge"
"sls" -> R rs1 rs2 rdR 0 "sls"
"sne" -> R rs1 rs2 rdR 0 "sne"
"sle" -> R rs1 rs2 rdR 0 "sle"
"j" -> J "j" immJ
"jal" -> J "jal" immJ
_ -> Illegal
input2program ns i = map (\l -> (extract_addr l, extract_instr ns l)) $ clear_code i