More specialGlobals.
"
COPYRIGHT (c) 1991 by Claus Gittinger
All Rights Reserved
This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice. This software may not
be provided or otherwise made available to, or used by, any
other person. No title to or ownership of the software is
hereby transferred.
"
ByteCodeCompiler subclass:#Decompiler
instanceVariableNames:'hasLineNo bytes literals index listStream'
classVariableNames:''
poolDictionaries:''
category:'System-Compiler'
!
!Decompiler class methodsFor:'documentation'!
copyright
"
COPYRIGHT (c) 1991 by Claus Gittinger
All Rights Reserved
This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice. This software may not
be provided or otherwise made available to, or used by, any
other person. No title to or ownership of the software is
hereby transferred.
"
!
documentation
"
only for stx-debugging. Not for public eyes.
Decompiler decompile:(someClass compiledMethodAt:#someSelector)
"
! !
!Decompiler class methodsFor:'decompiling'!
decompile:aMethod
^ (self new) decompile:aMethod to:Transcript
"
Decompiler decompile:(FileBrowser compiledMethodAt:#initialize)
Decompiler decompile:(Decompiler compiledMethodAt:#decompile:to:)
"
"Modified: 16.4.1996 / 20:26:01 / cg"
!
decompile:aMethod to:aStream
^ (self new) decompile:aMethod to:aStream
"Decompiler decompile:(FileBrowser compiledMethodAt:#initialize)"
"Created: 16.4.1996 / 20:25:55 / cg"
! !
!Decompiler methodsFor:'decompiling'!
decompile:aMethod to:aStream
|nBytes offs byte sym sel lineNr who|
listStream := aStream.
aMethod isNil ifTrue:[
aStream showCR:'nil method'.
^ self
].
who := aMethod who.
who notNil ifTrue:[
classToCompileFor := who first.
aStream cr.
aStream showCR:'decompiling ' , classToCompileFor name , '>>' , (who at:2) , ':'.
aStream cr.
].
bytes := aMethod byteCode.
bytes isNil ifTrue:[
aStream showCR:'no bytecode'.
^ self
].
literals := aMethod literals.
index := 1.
nBytes := bytes size.
[index <= nBytes] whileTrue:[
self showPC.
sym := self symbolicCodeFor:(bytes at:index).
aStream show:sym.
"
extra notNil ifTrue:[Transcript show:(extra printString)].
"
hasLineNo ifTrue:[
index := index + 1.
lineNr := bytes at:index.
] ifFalse:[
lineNr := nil
].
index := index + 1.
extra notNil ifTrue:[
aStream show:' '.
byte := bytes at:index.
"compute argument showXXX selector from extra ..."
sel := 'show' , extra , ':'.
sel at:5 put:(sel at:5) asUppercase.
self perform:sel asSymbol with:byte
].
lineNr notNil ifTrue:[
aStream show:'['; show:lineNr; show:']'
].
aStream showCR:''
]
"Created: 16.4.1996 / 20:27:18 / cg"
"Modified: 16.4.1996 / 20:27:40 / cg"
!
showAbsOffset:byte
|offs b2|
index := index + 1.
b2 := (bytes at:index).
offs := byte + (b2 bitShift:8).
index := index + 1.
listStream show:offs printString.
listStream show:' ('.
listStream show:offs printString.
listStream show:')'
"Modified: 16.4.1996 / 20:27:53 / cg"
!
showAbsOffsetLevel:byte
|offs b2|
index := index + 1.
b2 := (bytes at:index).
offs := byte + (b2 bitShift:8).
index := index + 1.
listStream show:offs printString.
listStream show:' ('.
listStream show:offs printString.
listStream show:')'.
self showNvarNargsAt:index.
index := index + 2
"Modified: 16.4.1996 / 20:27:57 / cg"
!
showIndex:byte
listStream show:byte printString.
index := index + 1
"Modified: 16.4.1996 / 20:27:59 / cg"
!
showIndexLevel:byte
self showIndex:byte.
self showNvarNargsAt:index.
index := index + 2
!
showInstvarIndex:byte
listStream show:byte printString.
classToCompileFor notNil ifTrue:[
listStream show:'('.
listStream show:(classToCompileFor allInstVarNames at:byte).
listStream show:')'.
].
index := index + 1
"Modified: 16.4.1996 / 20:28:06 / cg"
!
showLevelIndex:byte
self showIndex:byte.
listStream show:' lvl:'; show:(bytes at:index).
index := index + 1.
"Modified: 16.4.1996 / 20:28:08 / cg"
!
showLineNo:byte
listStream show:' line:' , byte printString.
index := index + 1
"Modified: 16.4.1996 / 20:28:10 / cg"
!
showLit1:ignored
self showLit:1
!
showLit2:ignored
self showLit:2
!
showLit3:ignored
self showLit:3
!
showLit4:ignored
self showLit:4
!
showLit5:ignored
self showLit:5
!
showLit6:ignored
self showLit:6
!
showLit7:ignored
self showLit:7
!
showLit8:ignored
self showLit:8
!
showLit9:ignored
self showLit:9
!
showLit:litIndex
|lit|
lit := literals at:litIndex.
lit isBehavior ifTrue:[
listStream show:lit name
] ifFalse:[
listStream show:lit storeString
]
"Modified: 16.4.1996 / 20:28:19 / cg"
!
showLiteral16:byte
|litIndex|
litIndex := bytes wordAt:index MSB:false.
self showLit:litIndex.
index := index + 2
!
showLiteral16Skip6:byte
|litIndex|
litIndex := bytes wordAt:index MSB:false.
index := index + 2.
listStream show:(literals at:litIndex) printString.
index := index + 6
"Modified: 16.4.1996 / 20:28:23 / cg"
!
showLiteral:byte
index := index + 1.
self showLit:byte
!
showLiteralAt:index
|offs|
offs := bytes at:index.
self showLit:offs
!
showLiteralSkip6:byte
index := index + 1.
listStream show:(literals at:byte) printString.
index := index + 6
"Modified: 16.4.1996 / 20:28:27 / cg"
!
showLongOffset:byte
|offs|
index := index + 1.
(byte > 127) ifTrue:[
offs := byte - 256 - 128
] ifFalse:[
offs := byte + 128
].
listStream show:offs printString.
listStream show:' ('.
listStream show:(index + offs) printString.
listStream show:')'
"Modified: 16.4.1996 / 20:28:30 / cg"
!
showLongOffsetLevel:byte
self showLongOffset:byte.
self showNvarNargsAt:index.
index := index + 2
!
showLsendArgs:byte
|litIndex|
listStream show:byte printString.
listStream show:' '.
index := index + 1.
litIndex := bytes wordAt:index MSB:false.
listStream show:(literals at:litIndex) printString.
index := index + 2
"Modified: 16.4.1996 / 20:28:35 / cg"
!
showNumber16:byte
listStream show:(bytes signedWordAt:index MSB:false) printString.
index := index + 2
"Modified: 16.4.1996 / 20:28:37 / cg"
!
showNumber:byte
listStream show:byte printString.
index := index + 1
"Modified: 16.4.1996 / 20:28:38 / cg"
!
showNvarNargsAt:index
listStream show:' nv='.
listStream show:(bytes at:index) printString.
listStream show:' na='.
listStream show:(bytes at:(index + 1)) printString
"Modified: 16.4.1996 / 20:28:40 / cg"
!
showOffset:byte
|offs|
index := index + 1.
(byte > 127) ifTrue:[
offs := byte - 256
] ifFalse:[
offs := byte
].
listStream show:(offs printString).
listStream show:' ('.
listStream show:(index + offs) printString.
listStream show:')'
"Modified: 16.4.1996 / 20:28:43 / cg"
!
showOffsetLevel:byte
self showOffset:byte.
self showNvarNargsAt:index.
index := index + 2
!
showPC
listStream show:(index printStringRadix:10 size:3 fill:(Character space)).
listStream show:': '.
listStream show:((bytes at:index) printStringRadix:16 size:2 fill:$0).
listStream show:' '.
"Modified: 16.4.1996 / 20:28:47 / cg"
!
showSendArgs:byte
listStream show:byte printString.
listStream show:' '.
index := index + 1.
self showLiteralAt:index.
index := index + 1
"Modified: 16.4.1996 / 20:28:50 / cg"
!
showSpecialGlobal:byte
|specialIndex|
specialIndex := bytes at:index.
index := index + 1.
"/ listStream show:specialIndex printString.
listStream show:(#(Array String FloatArray DoubleArray
Point Symbol Smalltalk Processor
SmallInteger Character Float Process
Set IdentitySet Dictionary IdentityDictionary
Semaphore OrderedCollection) at:specialIndex + 1)
"Modified: 16.4.1996 / 20:28:53 / cg"
"Modified: 9.8.1996 / 23:59:36 / stefan"
!
showSpecialSend:byte
|specialIndex|
specialIndex := bytes at:index.
index := index + 1.
"/ listStream show:specialIndex printString.
listStream show:'#'.
listStream show:(#(top bottom left right) at:specialIndex + 1)
"Modified: 16.4.1996 / 20:28:55 / cg"
!
showSuperSendArgs:byte
listStream show:byte printString.
listStream show:' '.
index := index + 1.
self showLiteralAt:index.
index := index + 1.
listStream show:' '.
self showLiteralAt:index.
index := index + 1
"Modified: 16.4.1996 / 20:28:58 / cg"
!
showVeryLongOffset:byte
|offs|
index := index + 1.
(byte > 127) ifTrue:[
offs := byte - 256 - 256
] ifFalse:[
offs := byte + 256
].
listStream show:offs printString.
listStream show:' ('.
listStream show:(index + offs) printString.
listStream show:')'
"Modified: 16.4.1996 / 20:29:00 / cg"
!
showVeryLongOffsetLevel:byte
self showVeryLongOffset:byte.
self showNvarNargsAt:index.
index := index + 2
!
symbolicCodeFor:aByte
|syms extras lnos|
syms := #( retTop " 0 "
retNil
retTrue
retFalse
ret0
retSelf " 5 "
blockRetTop
nil
LINE
nil
pushNil " 10 "
pushTrue
pushFalse
sendSelf
pushLit
pushSelf " 15 "
pushNum
pushNum16
drop
send
superSend " 20 "
send0
send1
send2
send3
sendDrop " 25 "
sendDrop0
sendDrop1
sendDrop2
sendDrop3
pushMethodArg " 30 "
pushMethodVar
pushBlockArg
pushBlockVar
pushInstVar
pushClassVar " 35 "
pushGlobal
storeMethodVar
storeBlockVar
storeInstVar
storeClassVar " 40 "
storeGlobal
pushOuterBlockArg
pushOuter1BlockArg
pushOuter2BlockArg
equal " 45 "
notEqual
dup
equal0
notEqual0
falseJump " 50 "
trueJump
nilJump
notNilJump
jump
makeBlock " 55 "
zeroJump
notZeroJump
eqJump
notEqJump
falseJump " 60 "
trueJump
nilJump
notNilJump
jump
makeBlock " 65 "
zeroJump
notZeroJump
eqJump
notEqJump
falseJump " 70 "
trueJump
nilJump
notNilJump
jump
makeBlock " 75 "
zeroJump
notZeroJump
eqJump
notEqJump
pushMethodVar1 " 80 "
pushMethodVar2
pushMethodVar3
pushMethodVar4
pushMethodVar5
pushMethodVar6 " 85 "
pushMethodArg1
pushMethodArg2
pushMethodArg3
pushMethodArg4
pushInstVar1 " 90 "
pushInstVar2
pushInstVar3
pushInstVar4
pushInstVar5
pushInstVar6 " 95 "
pushInstVar7
pushInstVar8
pushInstVar9
pushInstVar10
storeMethodVar1 " 100 "
storeMethodVar2
storeMethodVar3
storeMethodVar4
storeMethodVar5
storeMethodVar6 " 105 "
sendY
sendX
sendWidth
sendHeight
storeInstVar1 " 110 "
storeInstVar2
storeInstVar3
storeInstVar4
storeInstVar5
storeInstVar6 " 115 "
storeInstVar7
storeInstVar8
storeInstVar9
storeInstVar10
push0 " 120 "
push1
pushMinus1
sendPlus1
sendMinus1
incMethodVar " 125 "
decMethodVar
retNum
pushOuterBlockVar "16r80"
storeOuterBlockVar
sendEQ " 130 "
sendPLUS
sendNE
sendMINUS
sendCLASS
sendAT " 135 "
sendATPUT
sendBitAnd
sendBitOr
push2
pushBlockArg1 " 140 "
pushBlockArg2
pushBlockArg3
pushBlockArg4
pushContext "16r90"
sendGT " 145 "
sendGE
sendLT
sendLE
sendNEXT
sendPEEK " 150 "
sendVALUE
sendVALUE1
sendSIZE
sendORIGIN
sendEXTENT " 155 "
make0Block
makeNILBlock
sendASINTEGER " 158 "
sendROUNDED " 159 "
retMvar1 " 160 " "16rA0"
retMvar2
retMvar3
retMvar4
retMvar5
retMvar6 " 165 "
retIvar1
retIvar2
retIvar3
retIvar4
retIvar5 " 170 "
retIvar6
retIvar7
retIvar8
retMarg1
retMarg2 " 175 "
pushClassInstVar
storeClassInstVar
nil
not
sendSelf0 " 180 "
sendSelf1
sendSelf2
sendSelf3
sendSelfDrop0
sendSelfDrop1 " 185 "
sendSelfDrop2
sendSelfDrop3
isNil
notNil
falseJumpAbs " 190 "
trueJumpAbs
nilJumpAbs
notNilJumpAbs
jumpAbs
makeBlockAbs " 195 "
zeroJumpAbs
notZeroJumpAbs
eqJumpAbs
notEqJumpAbs " 199 "
pushGlobal " 200 "
pushLLit
jmpFalseL
jmpTrueL
nil
lsend " 205 "
lsuperSend
lsendSelf
pushGT0
nil
sendArrayNew " 210 "
sendBasicNew
sendGT0
sendNew
sendBasicNewN
sendNewN " 215 "
sendLogAnd
sendLogOr
pushGlobL
storeGlobL
nil " 220 "
nil
pushLit1
pushLit2
pushLit3
pushLit4
pushLit5
pushLit6
pushLit7
pushLit8
sendMUL " 230 "
sendSpecial " 231 "
pushBlockVar1
pushBlockVar2
pushBlockVar3
storeBlockVar1
storeBlockVar2
storeBlockVar3
refCheck
pushLocal
storeLocal " 240 "
).
lnos := #( false " 0 "
false
false
false
false
false " 5 "
false
false
true
false
false " 10 "
false
false
true
false
false " 15 "
false
false
false
true
true " 20 "
true
true
true
true
true " 25 "
true
true
true
true
false " 30 "
false
false
false
false
false " 35 "
false
false
false
false
false " 40 "
false
false
false
false
false " 45 "
false
false
false
false
false " 50 "
false
false
false
false
false " 55 "
false
false
false
false
false " 60 "
false
false
false
false
false " 65 "
false
false
false
false
false " 70 "
false
false
false
false
false " 75 "
false
false
false
false
false " 80 "
false
false
false
false
false " 85 "
false
false
false
false
false " 90 "
false
false
false
false
false " 95 "
false
false
false
false
false " 100 "
false
false
false
false
false " 105 "
false
false
false
false
false " 110 "
false
false
false
false
false " 115 "
false
false
false
false
false " 120 "
false
false
true
true
true " 125 "
true
false
false
false
true " 130 "
true
true
true
false
true " 135 "
true
true
true
false
false " 140 "
false
false
false
false
true " 145 "
true
true
true
true
true " 150 "
true
true
true
true
true " 155 "
false
false
true
true
false " 160 "
false
false
false
false
false " 165 "
false
false
false
false
false " 170 "
false
false
false
false
false " 175 "
false
false
false
true
true " 180 "
true
true
true
true
true " 185 "
true
true
false
false
false " 190 "
false
false
false
false
false " 195 "
false
false
false
false " 199 "
false " 200 "
false
false
false
false
true " 205 "
true
false
true
false
false " 210 " " arrayNew "
true " basicNew "
true " > 0 "
true " new "
true " basicNew: "
true " 215 " " new: "
true
true
false
false
false " 220 "
false
false
false
false
false " 225 "
false
false
false
false " 229 "
true " 230 "
true " 231 "
false
false
false
false
false
false
false
false
false " 240 "
).
extras := #(nil " 0 "
nil
nil
nil
nil
nil " 5 "
nil
nil
nil
nil
nil " 10 "
nil
nil
sendArgs
literal
nil " 15 "
number
number16
nil
sendArgs
superSendArgs " 20 "
literal
literal
literal
literal
sendArgs " 25 "
literal
literal
literal
literal
index " 30 "
index
index
index
instvarIndex
literalSkip6 " 35 "
literalSkip6
index
index
instvarIndex
literalSkip6 " 40 "
literalSkip6
indexLevel
index
index
nil " 45 "
nil
nil
nil
nil
offset " 50 "
offset
offset
offset
offset
offsetLevel " 55 "
offset
offset
offset
offset
longOffset " 60 "
longOffset
longOffset
longOffset
longOffset
longOffsetLevel " 65 "
longOffset
longOffset
longOffset
longOffset
veryLongOffset " 70 "
veryLongOffset
veryLongOffset
veryLongOffset
veryLongOffset
veryLongOffsetLevel " 75 "
veryLongOffset
veryLongOffset
veryLongOffset
veryLongOffset
nil " 80 "
nil
nil
nil
nil
nil " 85 "
nil
nil
nil
nil
nil " 90 "
nil
nil
nil
nil
nil " 95 "
nil
nil
nil
nil
nil " 100 "
nil
nil
nil
nil
nil " 105 "
nil
nil
nil
nil
nil " 110 "
nil
nil
nil
nil
nil " 115 "
nil
nil
nil
nil
nil " 120 "
nil
nil
nil
nil
index " 125 "
index
number
levelIndex "/ indexLevel
indexLevel
nil " 130 "
nil
nil
nil
nil
nil " 135 "
nil
nil
nil
nil
nil " 140 "
nil
nil
nil
nil
nil " 145 "
nil
nil
nil
nil
nil " 150 "
nil
nil
nil
nil
nil " 155 "
nil
nil
nil
nil
nil " 160 "
nil
nil
nil
nil
nil " 165 "
nil
nil
nil
nil
nil " 170 "
nil
nil
nil
nil
nil " 175 "
index
index
nil
nil
literal " 180 "
literal
literal
literal
literal
literal " 185 "
literal
literal
nil
nil
absOffset " 190 "
absOffset
absOffset
absOffset
absOffset
absOffsetLevel
absOffset
absOffset
absOffset
absOffset " 199 "
specialGlobal " 200 "
literal16
nil
nil
nil
lsendArgs " 205 "
lsuperSendArgs
lsendSelfArgs
nil
nil
nil " 210 "
nil
nil
nil
nil
nil " 215 "
nil
nil
literal16Skip6
literal16Skip6
nil " 220 "
nil
lit1
lit2
lit3
lit4 " 225 "
lit5
lit6
lit7
lit8
nil " 230 "
specialSend " 231 "
nil
nil
nil
nil
nil
nil
index
index " 240 "
).
extra := extras at:(aByte + 1).
hasLineNo := lnos at:(aByte + 1).
^ syms at:(aByte + 1)
"Modified: 2.9.1995 / 00:12:11 / claus"
!
ttt
Set new
"Created: 9.8.1996 / 23:49:00 / stefan"
! !
!Decompiler class methodsFor:'documentation'!
version
^ '$Header: /cvs/stx/stx/libcomp/Decompiler.st,v 1.16 1996-08-09 22:55:35 stefan Exp $'
! !