+{- `Deep Thought', a softcore CPU implemented on a FPGA
+
+ Copyright (C) 2010 Markus Hofstaetter <markus.manrow@gmx.at>
+ Copyright (C) 2010 Martin Perner <e0725782@student.tuwien.ac.at>
+ Copyright (C) 2010 Stefan Rebernig <stefan.rebernig@gmail.com>
+ Copyright (C) 2010 Manfred Schwarz <e0725898@student.tuwien.ac.at>
+ Copyright (C) 2010 Bernhard Urban <lewurm@gmail.com>
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. -}
+
module DT where
import DTFormat
-- parsing --
-instruction :: Dict -> Parser Word32
-instruction dict = foldl1 (<|>) (fmap (\x -> try (x dict)) instructions) <* char '\n'
+instruction :: LineNo -> Dict -> Parser Word32
+instruction lno dict = foldl1 (<|>) (fmap (\x -> try (x dict)) instructions) <* char '\n' <?> (". something at line " ++ show lno ++ " is wrong (ignore line 1 hint above, but pay attention for possible line offset due to #include).")
testins :: String -> IO ()
testins input =
- case (parse (instruction dict) "" (input++"\n")) of
+ case (parse (instruction 0 dict) "" (input++"\n")) of
Left err -> do { putStr "fail :/\n"; print err}
Right x -> do { printf "0x%08X\n" x }
where
iLabel :: Dict -> Parser Word32
-- TODO: save msb (=sign) correctly...
-iLabel d@(aktadr,_) = do {i <- (iLit d); return $ (i - aktadr) .&. 0xffff}
+iLabel d@(aktadr,_) = do {i <- (iLit d); return $ ((i - aktadr)`div`4) .&. 0xffff}
iLit :: Dict -> Parser Word32
iLit (_,d) = do
+ parseMySpaces
val <- expr d;
try (do {
string "@hi"; parseMySpaces;
updateDisable :: Parser Word32
updateDisable = do { char 'd'; return 1} <|> do {string ""; return 0}
+highonly :: Parser Word32
+highonly = do { char 'h'; return 1} <|> do {string ""; return 0}
+
highlow :: Parser Word32
highlow = do { char 'h'; return 1} <|> do {char 'l'; return 0} <|> do {string ""; return 0}
csv0i_p dict f = f<$>condition<*>branchpred<*>(iLabel dict)
csv0i_p' f = f<$>condition<*>branchpred
csv1 f = f<$>condition<%>reg
+csv1' f = f<$>condition
csv1_p f = f<$>condition<%>reg
csv2 f = f<$>condition<%>reg<.>reg
csv2i dict f = f<$>condition<%>reg<.>(iLit16 dict)
csv2i_cd dict f = f<$>carry<*>updateDisable<*>condition<%>reg<.>reg<.>(iLit5 dict)
csv2i_d dict f = f<$>updateDisable<*>condition<%>reg<.>reg<.>(iLit5 dict)
csv2i_scd dict f = f<$>sign<*>carry<*>updateDisable<*>condition<%>reg<.>reg<.>(iLit12 dict)
-csv2i_sl dict f = f<$>sign<*>highlow<*>condition<%>reg<.>(iLit16 dict)
+csv2i_sl dict f = f<$>highonly<*>sign<*>condition<%>reg<.>(iLit16 dict)
+csv2i_sl' dict f = f<$>sign<*>condition<%>reg<.>(iLit16 dict)
csv2i_lfd dict f = f<$>highlow<*>fill<*>updateDisable<*>condition<%>reg<.>(iLit16 dict)
csv3_cd f = f<$>carry<*>updateDisable<*>condition<%>reg<.>reg<.>reg
csv3_d f = f<$>updateDisable<*>condition<%>reg<.>reg<.>reg
lls, lrs, ars,
pop, push, disc, fetch,
movpf, movsf, movpt, movst,
- ldh, ldb, ldw, ldi,
+ ldh, ldb, ldw, ldi, ldil,
stw, sth, stb,
ldx, stx,
br, ret, call, reti,
ars dict = ins "ars" (csv2i_d dict) $ shiform 0x0a 1 1 0
-- memory
pop _ = ins "pop" csv1 $ sform 0x0b 0x0
-disc _ = ins "disc" csv1 $ sform 0x0b 0x1
+disc _ = ins "disc" csv1' $ sform' 0x0b 0x1 0
fetch _ = ins "fetch" csv1 $ sform 0x0b 0x2
push _ = ins "push" csv1 $ sform 0x0b 0x3
movpf _ = ins "movpf" csv1 $ sform 0x0c 0x2
ldh dict = ins "ldh" (csv2m dict) $ mformi 0x10
ldb dict = ins "ldb" (csv2m dict) $ mformi 0x12
ldi dict = ins "ldi" (csv2i_sl dict) $ lformi' 0x1a
+ldil dict = ins "ldil" (csv2i_sl' dict) $ lformi' 0x1a 0
stw dict = ins "stw" (csv2m dict) $ mformi 0x0f
sth dict = ins "sth" (csv2m dict) $ mformi 0x11
stb dict = ins "stb" (csv2m dict) $ mformi 0x13
aformi' opcd s c d cond rd ra = aformi opcd s c d cond rd ra 0
lformi opcd hl f d cond rd imm = pack [(cond,28),(opcd,23),(rd,19),(imm,3),(hl,2),(f,1),(d,0)]
-lformi' opcd s hl cond rd imm = lformi opcd s hl 0 cond rd imm
-lformi'not opcd cond rd = lformi opcd 0 1 0 cond rd 0xefffffff
+lformi' opcd hl s cond rd imm = lformi opcd s hl 0 cond rd imm
+lformi'not opcd cond rd = lformi opcd 0 1 0 cond rd 0xffff
mformi opcd cond rd disp ra = pack [(cond,28),(opcd,23),(rd,19),(ra,15),(disp,0)]
mformi' opcd cond rd = mformi opcd cond rd 0
bform' opcd typ cond bp = bform opcd typ 0 cond bp 0
sform opcd typ cond rd = pack [(cond,28),(opcd,23),(rd,19),(typ,17)]
+sform' opcd typ rd cond = sform opcd typ cond rd
brrform opcd typ cond ra = pack [(cond,28),(opcd,23),(ra,19),(typ,2)]
shiform opcd lr a c d cond rd ra imm = pack [(cond,28),(opcd,23),(rd,19),(ra,15),(imm,10),(lr,3),(a,2),(c,1),(d,0)]
--- ppc64 stuff (TODO: remove)
-iform opcd aa lk li = pack [(opcd,6),(li,30),(aa,31),(lk,0)]
-scform opcd lev = pack [(opcd,6),(lev,27),(1,31)]
-dform'b opcd bf l ra si = pack [(opcd,6),(bf,9),(0,10),(l,11),(ra,16),(si,0)]
-dsform opcd rt ra ds xo = pack [(opcd,6),(rt,11),(ra,16),(ds,30),(xo,0)]
-xform'a opcd rt ra rb xo = pack [(opcd,6),(rt,11),(ra,16),(rb,21),(xo,31)]
-xform'b opcd xo bf l ra rb = pack [(opcd,6),(bf,9),(0,10),(l,11),(ra,16),(rb,21),(xo,31),(0,0)]
-xform'c opcd xo rs ra rb rc = pack [(opcd,6),(rs,11),(ra,16),(rb,21),(xo,31),(rc,0)]
-xform'd opcd xo rc rs ra = pack [(opcd,6),(rs,11),(ra,16),(0,21),(xo,31),(rc,0)]
-xlform'a opcd xo bt ba bb = pack [(opcd,6),(bt,11),(ba,16),(bb,21),(xo,31)]
-xlform'b opcd xo lk bo bi bh = pack [(opcd,6),(bo,11),(bi,16),(bh,21),(xo,31),(lk,0)]
-xlform'c opcd xo bf bfa = pack [(opcd,6),(bf,9),(bfa,14),(xo,31)]
-xfxform opcd xo rs spr = pack [(opcd,6),(rs,11),(spr,21),(xo,31)]
-xfxform'b opcd h xo fxm rs = pack [(opcd,6),(rs,11),(h,12),(fxm,20),(xo,31)]
---xflform
--- fix xsform
-xsform opcd xo rc ra rs sh = pack [(opcd,6),(rs,11),(ra,16),(sh,21),(xo,30),(sh,31),(rc,0)]
-xoform' opcd xo oe rc rt ra = pack [(opcd,6),(rt,11),(ra,16),(0,21),(oe,22),(xo,31),(rc,0)]
---aform
-mform opcd rc ra rs sh mb me = pack [(opcd,6),(rs,11),(ra,16),(sh,21),(mb,26),(me,31),(rc,0)]
--- mdform needs to be fixed to handle sh correctly
-mdform opcd h rc ra rs sh mb = pack [(opcd,6),(rs,11),(ra,16),(sh,21),(mb,27),(h,30),(sh,31),(rc,0)]
-mdsform opcd h rc ra rs rb mb = pack [(opcd,6),(rs,11),(ra,16),(rb,21),(mb,27),(h,31),(rc,0)]
-
-- bit-packing --
pack bf = foldr1 (.|.) $ map (uncurry rotateL) bf
projects / calu.git / blobdiff