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Carl Shapiro
cmucl
Commits
174719d4
Commit
174719d4
authored
35 years ago
by
ch
Browse files
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Plain Diff
Added code to number instructions, identify branch delay slots, and deal
with relative branches. Also uppercase'd all the register names.
parent
6810a1a3
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code/pmax-disassem.lisp
+71
-47
71 additions, 47 deletions
code/pmax-disassem.lisp
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71 additions
and
47 deletions
code/pmax-disassem.lisp
+
71
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47
View file @
174719d4
;;; -*- Mode: Lisp; Package: MIPS -*-
;;; -*- Mode: Lisp; Package: MIPS -*-
;;;
;;;
;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/code/pmax-disassem.lisp,v 1.
3
1990/02/0
5 13:04:49 wlott
Exp $
;;; $Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/code/pmax-disassem.lisp,v 1.
4
1990/02/0
6 02:22:56 ch
Exp $
;;;
;;;
;;; A simple dissambler for the MIPS R2000.
;;; A simple dissambler for the MIPS R2000.
;;;
;;;
...
@@ -54,22 +54,22 @@
...
@@ -54,22 +54,22 @@
"The register name style: :c, :lisp, :raw"
)
"The register name style: :c, :lisp, :raw"
)
(
defvar
*c-register-names*
(
defvar
*c-register-names*
'#(
"
zero
"
"$
at
"
"$
v
0"
"$
v
1"
"$
a
0"
"$
a
1"
"$
a
2"
"$
a
3"
'#(
"
ZERO
"
"$
AT
"
"$
V
0"
"$
V
1"
"$
A
0"
"$
A
1"
"$
A
2"
"$
A
3"
"$
t
0"
"$
t
1"
"$
t
2"
"$
t
3"
"$
t
4"
"$
t
5"
"$
t
6"
"$
t
7"
"$
T
0"
"$
T
1"
"$
T
2"
"$
T
3"
"$
T
4"
"$
T
5"
"$
T
6"
"$
T
7"
"$
s
0"
"$
s
1"
"$
s
2"
"$
s
3"
"$
s
4"
"$
s
5"
"$
s
6"
"$
s
7"
"$
S
0"
"$
S
1"
"$
S
2"
"$
S
3"
"$
S
4"
"$
S
5"
"$
S
6"
"$
S
7"
"$
t
8"
"$
t
9"
"$
k
0"
"$
k
1"
"$
gp
"
"$
sp
"
"$
s
8"
"$
ra
"
))
"$
T
8"
"$
T
9"
"$
K
0"
"$
K
1"
"$
GP
"
"$
SP
"
"$
S
8"
"$
RA
"
))
(
defvar
*lisp-register-names*
(
defvar
*lisp-register-names*
'#(
"$
zero
"
"$
lip
"
"$
nl
0"
"$
nl
1"
"$
nl
2"
"$
nl
3"
"$
nl
4"
"$
nl5/nargs
"
'#(
"$
ZERO
"
"$
LIP
"
"$
NL
0"
"$
NL
1"
"$
NL
2"
"$
NL
3"
"$
NL
4"
"$
NL5/NARGS
"
"$
l
0"
"$
l
1"
"$
l
2"
"$
l
3"
"$
l
4"
"$
l
5/
env
"
"$
l
6/
old-cont
"
"$
l
7/
call-name
"
"$
L
0"
"$
L
1"
"$
L
2"
"$
L
3"
"$
L
4"
"$
L
5/
ENV
"
"$
L
6/
OLD-CONT
"
"$
L
7/
CALL-NAME
"
"$
a
0"
"$
a
1"
"$
a
2"
"$
a
3"
"$
a
4"
"$
a
5"
"$
l
14/
args
"
"$
l
15/
lra
"
"$
A
0"
"$
A
1"
"$
A
2"
"$
A
3"
"$
A
4"
"$
A
5"
"$
L
14/
ARGS
"
"$
L
15/
LRA
"
"$
bsp
"
"$
csp
"
"$
k
0"
"$
k
1"
"$
null
"
"$
nsp
"
"$
code"
"$cont
"
))
"$
BSP
"
"$
CSP
"
"$
K
0"
"$
K
1"
"$
NULL
"
"$
NSP
"
"$
CODE"
"$CONT
"
))
(
defvar
*raw-register-names*
(
defvar
*raw-register-names*
'#(
"$
r
0"
"$
r
1"
"$
r
2"
"$
r
3"
"$
r
4"
"$
r
5"
"$
r
6"
"$
r
7"
'#(
"$
R
0"
"$
R
1"
"$
R
2"
"$
R
3"
"$
R
4"
"$
R
5"
"$
R
6"
"$
R
7"
"$
r
8"
"$
r
9"
"$
r
10"
"$
r
12"
"$
r
13"
"$
r
14"
"$
r
15"
"$
R
8"
"$
R
9"
"$
R
10"
"$
R
12"
"$
R
13"
"$
R
14"
"$
R
15"
"$
r
16"
"$
r
17"
"$
r
18"
"$
r
19"
"$
r
20"
"$
r
21"
"$
r
22"
"$
r
23"
"$
R
16"
"$
R
17"
"$
R
18"
"$
R
19"
"$
R
20"
"$
R
21"
"$
R
22"
"$
R
23"
"$
r
24"
"$
r
25"
"$
r
26"
"$
r
27"
"$
r
28"
"$
r
29"
"$
r
30"
"$
r
31"
))
"$
R
24"
"$
R
25"
"$
R
26"
"$
R
27"
"$
R
28"
"$
R
29"
"$
R
30"
"$
R
31"
))
(
defun
register-name
(
register-number
)
(
defun
register-name
(
register-number
)
(
unless
(
<=
0
register-number
31
)
(
unless
(
<=
0
register-number
31
)
...
@@ -99,8 +99,7 @@
...
@@ -99,8 +99,7 @@
(
dolist
(
type
',types
)
(
dolist
(
type
',types
)
(
when
(
gethash
type
*mips-instruction-types*
)
(
when
(
gethash
type
*mips-instruction-types*
)
(
warn
"Instruction type ~S being redefined"
type
))
(
warn
"Instruction type ~S being redefined"
type
))
(
setf
(
gethash
type
*mips-instruction-types*
)
(
setf
(
gethash
type
*mips-instruction-types*
)
closure
))))
closure
))))
(
defun
mips-instruction-type-p
(
type
)
(
defun
mips-instruction-type-p
(
type
)
(
not
(
not
(
gethash
type
*mips-instruction-types*
))))
(
not
(
not
(
gethash
type
*mips-instruction-types*
))))
...
@@ -108,56 +107,65 @@
...
@@ -108,56 +107,65 @@
;;;; Instruction Types
;;;; Instruction Types
;;;
;;; Used later for relative branches.
(
defvar
*current-instruction-number*
0
)
(
def-mips-instruction-type
(
:ls-type
)
(
def-mips-instruction-type
(
:ls-type
)
(
let
((
rs
(
ldb
(
byte
5
21
)
word
))
(
let
((
rs
(
ldb
(
byte
5
21
)
word
))
(
rt
(
ldb
(
byte
5
16
)
word
))
(
rt
(
ldb
(
byte
5
16
)
word
))
(
immed
(
signed-ldb
(
byte
16
0
)
word
)))
(
immed
(
signed-ldb
(
byte
16
0
)
word
)))
(
format
stream
"~
8
,8T~A~8,8T~A, #x~X(~A)~%"
(
format
stream
"~
16
,8T~A~8,8T~A, #x~X(~A)~%"
name
(
register-name
rt
)
immed
(
register-name
rs
))))
name
(
register-name
rt
)
immed
(
register-name
rs
))))
(
def-mips-instruction-type
(
:si-type
)
(
def-mips-instruction-type
(
:si-type
)
(
let
((
rs
(
ldb
(
byte
5
21
)
word
))
(
let
((
rs
(
ldb
(
byte
5
21
)
word
))
(
rt
(
ldb
(
byte
5
16
)
word
))
(
rt
(
ldb
(
byte
5
16
)
word
))
(
immed
(
signed-ldb
(
byte
16
0
)
word
)))
(
immed
(
signed-ldb
(
byte
16
0
)
word
)))
(
format
stream
"~
8
,8T~A~8,8T~A, ~A, #x~X~%"
(
format
stream
"~
16
,8T~A~8,8T~A, ~A, #x~X~%"
name
(
register-name
rt
)
(
register-name
rs
)
immed
)))
name
(
register-name
rt
)
(
register-name
rs
)
immed
)))
(
def-mips-instruction-type
(
:ui-type
)
(
def-mips-instruction-type
(
:ui-type
)
(
let
((
rs
(
ldb
(
byte
5
21
)
word
))
(
let
((
rs
(
ldb
(
byte
5
21
)
word
))
(
rt
(
ldb
(
byte
5
16
)
word
))
(
rt
(
ldb
(
byte
5
16
)
word
))
(
immed
(
ldb
(
byte
16
0
)
word
)))
(
immed
(
ldb
(
byte
16
0
)
word
)))
(
format
stream
"~
8
,8T~A~8,8T~A, ~A, #x~X~%"
(
format
stream
"~
16
,8T~A~8,8T~A, ~A, #x~X~%"
name
(
register-name
rt
)
(
register-name
rs
)
immed
)))
name
(
register-name
rt
)
(
register-name
rs
)
immed
)))
(
def-mips-instruction-type
(
:lui-type
)
(
def-mips-instruction-type
(
:lui-type
)
(
let
((
rt
(
ldb
(
byte
5
16
)
word
))
(
let
((
rt
(
ldb
(
byte
5
16
)
word
))
(
immed
(
ldb
(
byte
16
0
)
word
)))
(
immed
(
ldb
(
byte
16
0
)
word
)))
(
format
stream
"~
8
,8T~A~8,8T~A, #x~X~%"
name
(
register-name
rt
)
immed
)))
(
format
stream
"~
16
,8T~A~8,8T~A, #x~X~%"
name
(
register-name
rt
)
immed
)))
(
def-mips-instruction-type
(
:j-type
)
(
def-mips-instruction-type
(
:j-type
)
(
let
((
target
(
ldb
(
byte
26
0
)
word
)))
(
let
((
target
(
ldb
(
byte
26
0
)
word
)))
(
format
stream
"~
8
,8T~A~8,8Ttarget = ~D~%"
name
target
)))
(
format
stream
"~
16
,8T~A~8,8Ttarget = ~D~%"
name
target
)))
(
def-mips-instruction-type
(
:jr-type
)
(
def-mips-instruction-type
(
:jr-type
)
(
let
((
rs
(
ldb
(
byte
5
21
)
word
)))
(
let
((
rs
(
ldb
(
byte
5
21
)
word
)))
(
format
stream
"~
8
,8T~A~8,8T~A~%"
name
(
register-name
rs
))))
(
format
stream
"~
16
,8T~A~8,8T~A~%"
name
(
register-name
rs
))))
(
def-mips-instruction-type
(
:jalr-type
)
(
def-mips-instruction-type
(
:jalr-type
)
(
let
((
rs
(
ldb
(
byte
5
21
)
word
))
(
let
((
rs
(
ldb
(
byte
5
21
)
word
))
(
rd
(
ldb
(
byte
5
11
)
word
)))
(
rd
(
ldb
(
byte
5
11
)
word
)))
(
format
stream
"~8,8T~A~8,8T~A, ~A~%"
name
(
register-name
rd
)
(
register-name
rs
))))
(
format
stream
"~16,8T~A~8,8T~A, ~A~%"
name
(
register-name
rd
)
(
register-name
rs
))))
(
defun
branch-target
(
offset
)
(
+
*current-instruction-number*
offset
1
))
(
def-mips-instruction-type
(
:branch-type
)
(
def-mips-instruction-type
(
:branch-type
)
(
let
((
rs
(
ldb
(
byte
5
21
)
word
))
(
let
((
rs
(
ldb
(
byte
5
21
)
word
))
(
offset
(
ldb
(
byte
16
0
)
word
)))
(
offset
(
signed-ldb
(
byte
16
0
)
word
)))
(
format
stream
"~8,8T~A~8,8T~A, offset = ~D~%"
name
(
register-name
rs
)
offset
)))
(
format
stream
"~16,8T~A~8,8T~A, ~D~%"
name
(
register-name
rs
)
(
branch-target
offset
))))
(
def-mips-instruction-type
(
:branch2-type
)
(
def-mips-instruction-type
(
:branch2-type
)
(
let
((
rs
(
ldb
(
byte
5
21
)
word
))
(
let
((
rs
(
ldb
(
byte
5
21
)
word
))
(
rt
(
ldb
(
byte
5
16
)
word
))
(
rt
(
ldb
(
byte
5
16
)
word
))
(
offset
(
ldb
(
byte
16
0
)
word
)))
(
offset
(
signed-
ldb
(
byte
16
0
)
word
)))
(
format
stream
"~
8
,8T~A~8,8T~A, ~A,
offset =
~D~%"
(
format
stream
"~
16
,8T~A~8,8T~A, ~A, ~D~%"
name
name
(
register-name
rs
)
(
register-name
rt
)
offset
)))
(
register-name
rs
)
(
register-name
rt
)
(
branch-target
offset
)))
)
(
def-mips-instruction-type
(
:r3-type
)
(
def-mips-instruction-type
(
:r3-type
)
(
let
((
rs
(
ldb
(
byte
5
21
)
word
))
(
let
((
rs
(
ldb
(
byte
5
21
)
word
))
...
@@ -165,28 +173,29 @@
...
@@ -165,28 +173,29 @@
(
rd
(
ldb
(
byte
5
11
)
word
)))
(
rd
(
ldb
(
byte
5
11
)
word
)))
(
cond
((
zerop
rd
)
(
cond
((
zerop
rd
)
;; Hack for NOP
;; Hack for NOP
(
format
stream
"~
8
,8TNOP~%"
))
(
format
stream
"~
16
,8TNOP~%"
))
((
and
(
zerop
rt
)
(
string=
name
"OR"
))
((
and
(
zerop
rt
)
(
string=
name
"OR"
))
;; Hack for MOVE
;; Hack for MOVE
(
format
stream
"~
8
,8TMOVE~8,8T~A, ~A~%"
(
format
stream
"~
16
,8TMOVE~8,8T~A, ~A~%"
(
register-name
rd
)
(
register-name
rs
)))
(
register-name
rd
)
(
register-name
rs
)))
(
t
(
t
(
format
stream
"~
8
,8T~A~8,8T~A, ~A, ~A~%"
(
format
stream
"~
16
,8T~A~8,8T~A, ~A, ~A~%"
name
(
register-name
rd
)
(
register-name
rs
)
name
(
register-name
rd
)
(
register-name
rs
)
(
register-name
rt
))))))
(
register-name
rt
))))))
(
def-mips-instruction-type
(
:mf-type
)
(
def-mips-instruction-type
(
:mf-type
)
(
let
((
rd
(
ldb
(
byte
5
11
)
word
)))
(
let
((
rd
(
ldb
(
byte
5
11
)
word
)))
(
format
stream
"~
8
,8T~A~8,8T~A~%"
name
(
register-name
rd
))))
(
format
stream
"~
16
,8T~A~8,8T~A~%"
name
(
register-name
rd
))))
(
def-mips-instruction-type
(
:mt-type
)
(
def-mips-instruction-type
(
:mt-type
)
(
let
((
rs
(
ldb
(
byte
5
21
)
word
)))
(
let
((
rs
(
ldb
(
byte
5
21
)
word
)))
(
format
stream
"~
8
,8T~A~8,8T~A~%"
name
(
register-name
rs
))))
(
format
stream
"~
16
,8T~A~8,8T~A~%"
name
(
register-name
rs
))))
(
def-mips-instruction-type
(
:mult-type
)
(
def-mips-instruction-type
(
:mult-type
)
(
let
((
rs
(
ldb
(
byte
5
21
)
word
))
(
let
((
rs
(
ldb
(
byte
5
21
)
word
))
(
rt
(
ldb
(
byte
5
16
)
word
)))
(
rt
(
ldb
(
byte
5
16
)
word
)))
(
format
stream
"~8,8T~A~8,8T~A, ~A~%"
name
(
register-name
rs
)
(
register-name
rt
))))
(
format
stream
"~16,8T~A~8,8T~A, ~A~%"
name
(
register-name
rs
)
(
register-name
rt
))))
(
def-mips-instruction-type
(
:shift-type
)
(
def-mips-instruction-type
(
:shift-type
)
(
let
((
rt
(
ldb
(
byte
5
16
)
word
))
(
let
((
rt
(
ldb
(
byte
5
16
)
word
))
...
@@ -194,28 +203,28 @@
...
@@ -194,28 +203,28 @@
(
shamt
(
ldb
(
byte
5
6
)
word
)))
(
shamt
(
ldb
(
byte
5
6
)
word
)))
;; Hack for NOP
;; Hack for NOP
(
cond
((
=
word
0
)
(
cond
((
=
word
0
)
(
format
stream
"~
8
,8TNOP~%"
))
(
format
stream
"~
16
,8TNOP~%"
))
(
t
(
t
(
format
stream
"~
8
,8T~A~8,8T~A, ~A, #x~X~%"
(
format
stream
"~
16
,8T~A~8,8T~A, ~A, #x~X~%"
name
(
register-name
rd
)
(
register-name
rt
)
shamt
)))))
name
(
register-name
rd
)
(
register-name
rt
)
shamt
)))))
(
def-mips-instruction-type
(
:shiftv-type
)
(
def-mips-instruction-type
(
:shiftv-type
)
(
let
((
rs
(
ldb
(
byte
5
21
)
word
))
(
let
((
rs
(
ldb
(
byte
5
21
)
word
))
(
rt
(
ldb
(
byte
5
16
)
word
))
(
rt
(
ldb
(
byte
5
16
)
word
))
(
rd
(
ldb
(
byte
5
11
)
word
)))
(
rd
(
ldb
(
byte
5
11
)
word
)))
(
format
stream
"~
8
,8T~A~8,8T~A, ~A, ~A~%"
(
format
stream
"~
16
,8T~A~8,8T~A, ~A, ~A~%"
name
(
register-name
rd
)
(
register-name
rt
)
(
register-name
rs
))))
name
(
register-name
rd
)
(
register-name
rt
)
(
register-name
rs
))))
(
def-mips-instruction-type
(
:break-type
)
(
def-mips-instruction-type
(
:break-type
)
(
let
((
code
(
ldb
(
byte
20
6
)
word
)))
; sandro's adb uses (byte 10 16)
(
let
((
code
(
ldb
(
byte
20
6
)
word
)))
; sandro's adb uses (byte 10 16)
(
format
stream
"~
8
,8T~A~8,8T#x~X~%"
name
code
)))
(
format
stream
"~
16
,8T~A~8,8T#x~X~%"
name
code
)))
(
def-mips-instruction-type
(
:syscall-type
)
(
def-mips-instruction-type
(
:syscall-type
)
(
declare
(
ignore
word
))
(
declare
(
ignore
word
))
(
format
stream
"~
8
,8T~A~%"
name
))
(
format
stream
"~
16
,8T~A~%"
name
))
(
def-mips-instruction-type
(
:cop0-type
:cop1-type
:cop2-type
:cop3-type
)
(
def-mips-instruction-type
(
:cop0-type
:cop1-type
:cop2-type
:cop3-type
)
(
format
stream
"~
8
,8T~A~8,8T(#x~X)~%"
name
word
))
(
format
stream
"~
16
,8T~A~8,8T(#x~X)~%"
name
word
))
;;;; Instruction Definition
;;;; Instruction Definition
...
@@ -407,7 +416,7 @@
...
@@ -407,7 +416,7 @@
(
let
((
instr
(
mips-instruction
word
)))
(
let
((
instr
(
mips-instruction
word
)))
(
unless
instr
(
unless
instr
(
format
stream
"UNKNOWN INSTR (#x~X)~%"
word
)
(
format
stream
"UNKNOWN INSTR (#x~X)~%"
word
)
(
return-from
disassemble-instruction
))
(
return-from
disassemble-instruction
(
values
nil
nil
)
))
(
let*
((
instr-name
(
mips-instruction-name
instr
))
(
let*
((
instr-name
(
mips-instruction-name
instr
))
(
instr-type
(
mips-instruction-type
instr
))
(
instr-type
(
mips-instruction-type
instr
))
(
closure
(
gethash
instr-type
*mips-instruction-types*
)))
(
closure
(
gethash
instr-type
*mips-instruction-types*
)))
...
@@ -415,16 +424,31 @@
...
@@ -415,16 +424,31 @@
(
funcall
closure
instr-name
word
stream
))
(
funcall
closure
instr-name
word
stream
))
(
t
(
t
(
format
stream
"UNKNOWN TYPE (~A/~S/#x~X)~%"
(
format
stream
"UNKNOWN TYPE (~A/~S/#x~X)~%"
instr-name
instr-type
word
))))))
instr-name
instr-type
word
)))
(
values
instr-name
instr-type
))))
;;; Dissassemble-Code-Vector
;;; Dissassemble-Code-Vector
(
defconstant
delay-slot-instruction-types
'
(
:j-type
:jr-type
:jalr-type
:branch-type
:branch2-type
))
(
defun
disassemble-code-vector
(
code-vector
length
&optional
(
stream
t
))
(
defun
disassemble-code-vector
(
code-vector
length
&optional
(
stream
t
))
(
do
((
i
0
(
+
i
4
)))
(
do
((
i
0
(
+
i
4
))
(
*current-instruction-number*
0
(
1+
*current-instruction-number*
))
(
instruction-in-delay-slot-p
nil
))
((
>=
i
length
))
((
>=
i
length
))
(
disassemble-instruction
(
+
(
ash
(
aref
code-vector
i
)
24
)
(
unless
instruction-in-delay-slot-p
(
ash
(
aref
code-vector
(
+
i
1
))
16
)
(
format
stream
"~6D:"
*current-instruction-number*
))
(
ash
(
aref
code-vector
(
+
i
2
))
8
)
(
multiple-value-bind
(
aref
code-vector
(
+
i
3
)))
(
name
type
)
stream
)))
(
disassemble-instruction
(
+
(
ash
(
aref
code-vector
i
)
24
)
(
ash
(
aref
code-vector
(
+
i
1
))
16
)
(
ash
(
aref
code-vector
(
+
i
2
))
8
)
(
aref
code-vector
(
+
i
3
)))
stream
)
(
declare
(
ignore
name
))
(
cond
((
member
type
delay-slot-instruction-types
:test
#'
eq
)
(
setf
instruction-in-delay-slot-p
t
))
(
t
(
setf
instruction-in-delay-slot-p
nil
))))))
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