version 1.14, 1996/08/26 10:07:21
|
version 1.66, 2010/04/11 15:37:22
|
Line 1
|
Line 1
|
\ SEE.FS highend SEE for ANSforth 16may93jaw |
\ SEE.FS highend SEE for ANSforth 16may93jaw |
|
|
\ Copyright (C) 1995 Free Software Foundation, Inc. |
\ Copyright (C) 1995,2000,2003,2004,2006,2007,2008 Free Software Foundation, Inc. |
|
|
\ This file is part of Gforth. |
\ This file is part of Gforth. |
|
|
\ Gforth is free software; you can redistribute it and/or |
\ Gforth is free software; you can redistribute it and/or |
\ modify it under the terms of the GNU General Public License |
\ modify it under the terms of the GNU General Public License |
\ as published by the Free Software Foundation; either version 2 |
\ as published by the Free Software Foundation, either version 3 |
\ of the License, or (at your option) any later version. |
\ of the License, or (at your option) any later version. |
|
|
\ This program is distributed in the hope that it will be useful, |
\ This program is distributed in the hope that it will be useful, |
Line 15
|
Line 15
|
\ GNU General Public License for more details. |
\ GNU General Public License for more details. |
|
|
\ You should have received a copy of the GNU General Public License |
\ You should have received a copy of the GNU General Public License |
\ along with this program; if not, write to the Free Software |
\ along with this program. If not, see http://www.gnu.org/licenses/. |
\ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
|
|
|
|
|
\ May be cross-compiled |
\ May be cross-compiled |
Line 25
|
Line 24
|
|
|
\ Ideas: Level should be a stack |
\ Ideas: Level should be a stack |
|
|
|
require look.fs |
require termsize.fs |
require termsize.fs |
|
require wordinfo.fs |
|
|
decimal |
decimal |
|
|
Line 50 VARIABLE Level
|
Line 51 VARIABLE Level
|
: level- -7 Level +! ; |
: level- -7 Level +! ; |
|
|
VARIABLE nlflag |
VARIABLE nlflag |
|
VARIABLE uppercase \ structure words are in uppercase |
|
|
DEFER nlcount ' noop IS nlcount |
DEFER nlcount ' noop IS nlcount |
|
|
: nl nlflag on ; |
: nl nlflag on ; |
: (nl) nlcount |
: (nl) nlcount |
XPos @ Level @ = ?Exit |
XPos @ Level @ = IF EXIT THEN \ ?Exit |
C-Formated @ IF |
C-Formated @ IF |
C-Output @ |
C-Output @ |
IF C-Clearline @ IF cols XPos @ - spaces |
IF C-Clearline @ IF cols XPos @ - spaces |
Line 69 DEFER nlcount ' noop IS nlcount
|
Line 71 DEFER nlcount ' noop IS nlcount
|
XPos @ over + cols u>= IF (nl) THEN ; |
XPos @ over + cols u>= IF (nl) THEN ; |
|
|
: ctype ( adr len -- ) |
: ctype ( adr len -- ) |
warp? dup XPos +! C-Output @ IF type ELSE 2drop THEN ; |
warp? dup XPos +! C-Output @ |
|
IF uppercase @ IF bounds ?DO i c@ toupper emit LOOP |
|
uppercase off ELSE type THEN |
|
ELSE 2drop THEN ; |
|
|
: cemit 1 warp? |
: cemit 1 warp? |
over bl = Level @ XPos @ = and |
over bl = Level @ XPos @ = and |
IF 2drop ELSE XPos +! C-Output @ IF emit ELSE drop THEN |
IF 2drop ELSE XPos +! C-Output @ IF emit ELSE drop THEN |
THEN ; |
THEN ; |
|
|
DEFER .string |
DEFER .string ( c-addr u n -- ) |
|
|
[IFDEF] Green |
[IFDEF] Green |
VARIABLE Colors Colors on |
VARIABLE Colors Colors on |
Line 97 VARIABLE Colors Colors on
|
Line 102 VARIABLE Colors Colors on
|
|
|
' (.string) IS .string |
' (.string) IS .string |
|
|
|
: c-\type ( c-addr u -- ) |
|
\ type string in \-escaped form |
|
begin |
|
dup while |
|
2dup newline string-prefix? if |
|
'\ cemit 'n cemit |
|
newline nip /string |
|
else |
|
over c@ |
|
dup '" = over '\ = or if |
|
'\ cemit cemit |
|
else |
|
dup bl 127 within if |
|
cemit |
|
else |
|
base @ >r try |
|
8 base ! 0 <<# # # # '\ hold #> ctype #>> 0 |
|
restore |
|
r@ base ! |
|
endtry |
|
rdrop throw |
|
endif |
|
endif |
|
1 /string |
|
endif |
|
repeat |
|
2drop ; |
|
|
: .struc Str# .string ; |
: .struc |
|
uppercase on Str# .string ; |
|
|
\ CODES 15may93jaw |
\ CODES (Branchtypes) 15may93jaw |
|
|
21 CONSTANT RepeatCode |
21 CONSTANT RepeatCode |
22 CONSTANT AgainCode |
22 CONSTANT AgainCode |
Line 110 VARIABLE Colors Colors on
|
Line 143 VARIABLE Colors Colors on
|
11 CONSTANT AheadCode |
11 CONSTANT AheadCode |
13 CONSTANT WhileCode2 |
13 CONSTANT WhileCode2 |
14 CONSTANT Disable |
14 CONSTANT Disable |
|
15 CONSTANT LeaveCode |
|
|
|
|
\ FORMAT WORDS 13jun93jaw |
\ FORMAT WORDS 13jun93jaw |
|
|
VARIABLE C-Stop |
VARIABLE C-Stop |
VARIABLE Branches |
VARIABLE Branches |
|
|
VARIABLE BranchPointer |
VARIABLE BranchPointer \ point to the end of branch table |
VARIABLE SearchPointer |
VARIABLE SearchPointer |
CREATE BranchTable 500 allot |
|
|
\ The branchtable consists of three entrys: |
|
\ address of branch , branch destination , branch type |
|
|
|
CREATE BranchTable 128 cells allot |
here 3 cells - |
here 3 cells - |
ACONSTANT MaxTable |
ACONSTANT MaxTable |
|
|
: FirstBranch BranchTable cell+ SearchPointer ! ; |
: FirstBranch BranchTable cell+ SearchPointer ! ; |
|
|
: (BranchAddr?) ( a-addr -- a-addr true | false ) |
: (BranchAddr?) ( a-addr1 -- a-addr2 true | false ) |
|
\ searches a branch with destination a-addr1 |
|
\ a-addr1: branch destination |
|
\ a-addr2: pointer in branch table |
SearchPointer @ |
SearchPointer @ |
BEGIN dup BranchPointer @ u< |
BEGIN dup BranchPointer @ u< |
WHILE |
WHILE |
Line 153 ACONSTANT MaxTable
|
Line 195 ACONSTANT MaxTable
|
2drop true |
2drop true |
THEN ; |
THEN ; |
|
|
|
: MyBranch ( a-addr -- a-addr a-addr2 ) |
|
\ finds branch table entry for branch at a-addr |
|
dup @ |
|
BranchAddr? |
|
BEGIN |
|
WHILE 1 cells - @ |
|
over <> |
|
WHILE dup @ |
|
MoreBranchAddr? |
|
REPEAT |
|
SearchPointer @ 3 cells - |
|
ELSE true ABORT" SEE: Table failure" |
|
THEN ; |
|
|
\ |
\ |
\ addrw addrt |
\ addrw addrt |
\ BEGIN ... WHILE ... AGAIN ... THEN |
\ BEGIN ... WHILE ... AGAIN ... THEN |
Line 184 ACONSTANT MaxTable
|
Line 240 ACONSTANT MaxTable
|
BranchPointer @ 1 cells - ! ; |
BranchPointer @ 1 cells - ! ; |
|
|
: Branch! ( a-addr rel -- a-addr ) |
: Branch! ( a-addr rel -- a-addr ) |
over + over ,Branch ,Branch 0 ,Branch ; |
over ,Branch ,Branch 0 ,Branch ; |
|
\ over + over ,Branch ,Branch 0 ,Branch ; |
|
|
\ DEFER CheckUntil |
\ DEFER CheckUntil |
VARIABLE NoOutput |
VARIABLE NoOutput |
Line 198 VARIABLE C-Pass
|
Line 255 VARIABLE C-Pass
|
: Display? ( -- flag ) C-Pass @ 1 = ; |
: Display? ( -- flag ) C-Pass @ 1 = ; |
: Debug? ( -- flag ) C-Pass @ 2 = ; |
: Debug? ( -- flag ) C-Pass @ 2 = ; |
|
|
: back? ( n -- flag ) 0< ; |
: back? ( addr target -- addr flag ) |
: ahead? ( n -- flag ) 0> ; |
over u< ; |
|
|
: c-(compile) |
: .word ( addr x -- addr ) |
Display? |
\ print x as a word if possible |
|
dup look 0= IF |
|
drop dup threaded>name dup 0= if |
|
drop over 1 cells - @ dup body> look |
|
IF |
|
nip nip dup ." <" name>string rot wordinfo .string ." > " |
|
ELSE |
|
2drop ." <" 0 .r ." > " |
|
THEN |
|
EXIT |
|
then |
|
THEN |
|
nip dup cell+ @ immediate-mask and |
IF |
IF |
s" POSTPONE " Com# .string |
bl cemit ." POSTPONE " |
dup @ look 0= ABORT" SEE: No valid XT" |
|
name>string 0 .string bl cemit |
|
THEN |
THEN |
cell+ ; |
dup name>string rot wordinfo .string |
|
; |
|
|
: c-lit |
: c-call ( addr1 -- addr2 ) |
Display? IF |
Display? IF |
dup @ dup abs 0 <# #S rot sign #> 0 .string bl cemit |
dup @ body> .word bl cemit |
THEN |
THEN |
cell+ ; |
cell+ ; |
|
|
: c-@local# |
: c-callxt ( addr1 -- addr2 ) |
Display? IF |
Display? IF |
S" @local" 0 .string |
dup @ .word bl cemit |
dup @ dup 1 cells / abs 0 <# #S rot sign #> 0 .string bl cemit |
|
THEN |
THEN |
cell+ ; |
cell+ ; |
|
|
: c-flit |
\ here docon: , docol: , dovar: , douser: , dodefer: , dofield: , |
Display? IF |
\ here over - 2constant doers |
dup f@ scratch represent 0= |
|
IF 2drop scratch 3 min 0 .string |
|
ELSE |
|
IF '- cemit THEN 1- |
|
scratch over c@ cemit '. cemit 1 /string 0 .string |
|
'E cemit |
|
dup abs 0 <# #S rot sign #> 0 .string bl cemit |
|
THEN THEN |
|
float+ ; |
|
|
|
: c-f@local# |
: c-lit ( addr1 -- addr2 ) |
Display? IF |
Display? IF |
S" f@local" 0 .string |
dup @ dup body> dup cfaligned over = swap in-dictionary? and if |
dup @ dup 1 floats / abs 0 <# #S rot sign #> 0 .string bl cemit |
( addr1 addr1@ ) |
THEN |
dup body> @ dovar: = if |
|
drop c-call EXIT |
|
endif |
|
endif |
|
\ !! test for cfa here, and print "['] ..." |
|
dup abs 0 <# #S rot sign #> 0 .string bl cemit |
|
endif |
cell+ ; |
cell+ ; |
|
|
: c-laddr# |
: c-lit+ ( addr1 -- addr2 ) |
Display? IF |
Display? if |
S" laddr# " 0 .string |
|
dup @ dup abs 0 <# #S rot sign #> 0 .string bl cemit |
dup @ dup abs 0 <# #S rot sign #> 0 .string bl cemit |
THEN |
s" + " 0 .string |
|
endif |
cell+ ; |
cell+ ; |
|
|
: c-lp+!# |
: .name-without ( addr -- addr ) |
Display? IF |
\ !! the stack effect cannot be correct |
S" lp+!# " 0 .string |
\ prints a name without a() e.g. a(+LOOP) or (s") |
dup @ dup abs 0 <# #S rot sign #> 0 .string bl cemit |
dup 1 cells - @ threaded>name dup IF |
THEN |
name>string over c@ 'a = IF |
cell+ ; |
1 /string |
|
THEN |
: c-s" |
over c@ '( = IF |
count 2dup + aligned -rot |
1 /string |
Display? |
THEN |
IF [char] S cemit [char] " cemit bl cemit 0 .string |
2dup + 1- c@ ') = IF 1- THEN .struc ELSE drop |
[char] " cemit bl cemit |
THEN ; |
ELSE 2drop |
|
THEN ; |
|
|
|
: c-." |
|
count 2dup + aligned -rot |
|
Display? |
|
IF [char] . cemit |
|
[char] " cemit bl cemit 0 .string |
|
[char] " cemit bl cemit |
|
ELSE 2drop |
|
THEN ; |
|
|
|
|
[ifdef] (s") |
: c-c" |
: c-c" |
|
Display? IF nl .name-without THEN |
count 2dup + aligned -rot |
count 2dup + aligned -rot |
Display? |
Display? |
IF [char] C cemit [char] " cemit bl cemit 0 .string |
IF bl cemit 0 .string |
[char] " cemit bl cemit |
[char] " cemit bl cemit |
ELSE 2drop |
ELSE 2drop |
THEN ; |
THEN ; |
|
[endif] |
|
|
|
: c-string? ( addr1 -- addr2 f ) |
|
\ f is true if a string was found and decompiled. |
|
\ if f is false, addr2=addr1 |
|
\ recognizes the following patterns: |
|
\ c": ahead X: len string then lit X |
|
\ flit: ahead X: float then lit X f@ |
|
\ s\": ahead X: string then lit X lit len |
|
\ .\": ahead X: string then lit X lit len type |
|
\ !! not recognized anywhere: |
|
\ abort": if ahead X: len string then lit X c(abort") then |
|
dup @ back? if false exit endif |
|
dup @ >r |
|
r@ @ decompile-prim ['] lit xt>threaded <> if rdrop false exit endif |
|
r@ cell+ @ over cell+ <> if rdrop false exit endif |
|
\ we have at least C" |
|
r@ 2 cells + @ decompile-prim dup ['] lit xt>threaded = if |
|
drop r@ 3 cells + @ over cell+ + aligned r@ = if |
|
\ we have at least s" |
|
r@ 4 cells + @ decompile-prim ['] lit-perform xt>threaded = |
|
r@ 5 cells + @ ['] type >body = and if |
|
6 s\" .\\\" " |
|
else |
|
4 s\" s\\\" " |
|
endif |
|
\ !! make newline if string too long? |
|
display? if |
|
0 .string r@ cell+ @ r@ 3 cells + @ c-\type '" cemit bl cemit |
|
else |
|
2drop |
|
endif |
|
nip cells r> + true exit |
|
endif |
|
endif |
|
['] f@ xt>threaded = if |
|
display? if |
|
r@ cell+ @ f@ 10 8 16 f>str-rdp 0 .string bl cemit |
|
endif |
|
drop r> 3 cells + true exit |
|
endif |
|
\ !! check if count matches space? |
|
display? if |
|
s\" c\" " 0 .string r@ cell+ @ count 0 .string '" cemit bl cemit |
|
endif |
|
drop r> 2 cells + true ; |
|
|
|
: Forward? ( a-addr true | false -- a-addr true | false ) |
|
\ a-addr is pointer into branch table |
|
\ returns true when jump is a forward jump |
|
IF |
|
dup dup @ swap 1 cells - @ u> IF |
|
true |
|
ELSE |
|
drop false |
|
THEN |
|
\ only if forward jump |
|
ELSE |
|
false |
|
THEN ; |
|
|
: Forward? ( a-addr true | false -- ) |
: RepeatCheck ( a-addr1 a-addr2 true | false -- false ) |
IF dup dup @ swap 1 cells - @ - |
|
Ahead? IF true ELSE drop false THEN |
|
\ only if forward jump |
|
ELSE false THEN ; |
|
|
|
: RepeatCheck |
|
IF BEGIN 2dup |
IF BEGIN 2dup |
1 cells - @ swap dup @ + |
1 cells - @ swap @ |
u<= |
u<= |
WHILE drop dup cell+ |
WHILE drop dup cell+ |
MoreBranchAddr? 0= |
MoreBranchAddr? 0= |
Line 300 VARIABLE C-Pass
|
Line 408 VARIABLE C-Pass
|
ELSE false |
ELSE false |
THEN ; |
THEN ; |
|
|
: c-branch |
: c-branch ( addr1 -- addr2 ) |
|
c-string? ?exit |
Scan? |
Scan? |
IF dup @ Branch! |
IF dup @ Branch! |
dup @ back? |
dup @ back? |
Line 327 VARIABLE C-Pass
|
Line 436 VARIABLE C-Pass
|
IF drop S" REPEAT " .struc nl |
IF drop S" REPEAT " .struc nl |
ELSE S" AGAIN " .struc nl |
ELSE S" AGAIN " .struc nl |
THEN |
THEN |
ELSE dup cell+ BranchAddr? Forward? |
ELSE MyBranch cell+ @ LeaveCode = |
IF dup cell+ @ WhileCode2 = |
IF S" LEAVE " .struc |
IF nl S" ELSE" .struc level+ |
ELSE |
ELSE level- nl S" ELSE" .struc level+ THEN |
dup cell+ BranchAddr? Forward? |
cell+ Disable swap ! |
IF dup cell+ @ WhileCode2 = |
ELSE S" AHEAD" .struc level+ |
IF nl S" ELSE" .struc level+ |
THEN |
ELSE level- nl S" ELSE" .struc level+ THEN |
|
cell+ Disable swap ! |
|
ELSE S" AHEAD" .struc level+ |
|
THEN |
|
THEN |
THEN |
THEN |
THEN |
THEN |
Debug? |
Debug? |
IF dup @ + |
IF @ \ !!! cross-interacts with debugger !!! |
ELSE cell+ |
ELSE cell+ |
THEN ; |
THEN ; |
|
|
: MyBranch ( a-addr -- a-addr a-addr2 ) |
|
dup @ over + |
|
BranchAddr? |
|
BEGIN |
|
WHILE 1 cells - @ |
|
over <> |
|
WHILE dup @ over + |
|
MoreBranchAddr? |
|
REPEAT |
|
SearchPointer @ 3 cells - |
|
ELSE true ABORT" SEE: Table failure" |
|
THEN ; |
|
|
|
: DebugBranch |
: DebugBranch |
Debug? |
Debug? |
IF dup @ over + swap THEN ; \ return 2 different addresses |
IF dup @ swap THEN ; \ return 2 different addresses |
|
|
: c-?branch |
: c-?branch |
Scan? |
Scan? |
Line 376 VARIABLE C-Pass
|
Line 476 VARIABLE C-Pass
|
level- nl |
level- nl |
S" WHILE " .struc |
S" WHILE " .struc |
level+ |
level+ |
ELSE nl S" IF " .struc level+ |
ELSE MyBranch cell+ @ LeaveCode = |
|
IF s" 0= ?LEAVE " .struc |
|
ELSE nl S" IF " .struc level+ |
|
THEN |
THEN |
THEN |
THEN |
THEN |
THEN |
THEN |
DebugBranch |
DebugBranch |
cell+ ; |
cell+ ; |
|
|
: c-?branch-lp+!# c-?branch cell+ ; |
|
: c-branch-lp+!# c-branch cell+ ; |
|
|
|
: c-do |
|
Display? IF nl S" DO" .struc level+ THEN ; |
|
|
|
: c-?do |
|
Display? IF nl S" ?DO" .struc level+ THEN |
|
DebugBranch cell+ ; |
|
|
|
: c-for |
: c-for |
Display? IF nl S" FOR" .struc level+ THEN ; |
Display? IF nl S" FOR" .struc level+ THEN ; |
|
|
: c-next |
|
Display? IF level- nl S" NEXT " .struc nl THEN |
|
DebugBranch cell+ cell+ ; |
|
|
|
: c-loop |
: c-loop |
Display? IF level- nl S" LOOP " .struc nl THEN |
Display? IF level- nl .name-without nl bl cemit THEN |
DebugBranch cell+ cell+ ; |
DebugBranch cell+ |
|
Scan? |
|
IF dup BranchAddr? |
|
BEGIN WHILE cell+ LeaveCode swap ! |
|
dup MoreBranchAddr? |
|
REPEAT |
|
THEN |
|
cell+ ; |
|
|
: c-+loop |
: c-do |
Display? IF level- nl S" +LOOP " .struc nl THEN |
Display? IF nl .name-without level+ THEN ; |
DebugBranch cell+ cell+ ; |
|
|
|
: c-s+loop |
|
Display? IF level- nl S" S+LOOP " .struc nl THEN |
|
DebugBranch cell+ cell+ ; |
|
|
|
: c--loop |
|
Display? IF level- nl S" -LOOP " .struc nl THEN |
|
DebugBranch cell+ cell+ ; |
|
|
|
: c-next-lp+!# c-next cell+ ; |
|
: c-loop-lp+!# c-loop cell+ ; |
|
: c-+loop-lp+!# c-+loop cell+ ; |
|
: c-s+loop-lp+!# c-s+loop cell+ ; |
|
: c--loop-lp+!# c--loop cell+ ; |
|
|
|
: c-leave |
|
Display? IF S" LEAVE " .struc THEN |
|
Debug? IF dup @ + THEN cell+ ; |
|
|
|
: c-?leave |
|
Display? IF S" ?LEAVE " .struc THEN |
|
cell+ DebugBranch swap cell+ swap cell+ ; |
|
|
|
: c-exit dup 1 cells - |
|
CheckEnd |
|
IF Display? IF nlflag off S" ;" Com# .string THEN |
|
C-Stop on |
|
ELSE Display? IF S" EXIT " .struc THEN |
|
THEN |
|
Debug? IF drop THEN ; |
|
|
|
: c-does> \ end of create part |
: c-?do ( addr1 -- addr2 ) |
Display? IF S" DOES> " Com# .string THEN |
Display? IF |
Cell+ cell+ ; |
nl .name-without level+ |
|
THEN |
|
DebugBranch cell+ ; |
|
|
|
: c-exit ( addr1 -- addr2 ) |
|
dup 1 cells - |
|
CheckEnd |
|
IF |
|
Display? IF nlflag off S" ;" Com# .string THEN |
|
C-Stop on |
|
ELSE |
|
Display? IF S" EXIT " .struc THEN |
|
THEN |
|
Debug? IF drop THEN ; \ !!! cross-interacts with debugger !!! |
|
|
: c-abort" |
: c-abort" |
count 2dup + aligned -rot |
count 2dup + aligned -rot |
Line 451 VARIABLE C-Pass
|
Line 529 VARIABLE C-Pass
|
ELSE 2drop |
ELSE 2drop |
THEN ; |
THEN ; |
|
|
|
[IFDEF] (does>) |
|
: c-does> \ end of create part |
|
Display? IF S" DOES> " Com# .string THEN ; |
|
\ maxaligned /does-handler + ; \ !! no longer needed for non-cross stuff |
|
[THEN] |
|
|
|
[IFDEF] (compile) |
|
: c-(compile) |
|
Display? |
|
IF |
|
s" POSTPONE " Com# .string |
|
dup @ look 0= ABORT" SEE: No valid XT" |
|
name>string 0 .string bl cemit |
|
THEN |
|
cell+ ; |
|
[THEN] |
|
|
CREATE C-Table |
CREATE C-Table |
' lit A, ' c-lit A, |
' lit A, ' c-lit A, |
' @local# A, ' c-@local# A, |
' does-exec A, ' c-callxt A, |
' flit A, ' c-flit A, |
' lit@ A, ' c-call A, |
' f@local# A, ' c-f@local# A, |
[IFDEF] call ' call A, ' c-call A, [THEN] |
' laddr# A, ' c-laddr# A, |
\ ' useraddr A, .... |
' lp+!# A, ' c-lp+!# A, |
' lit-perform A, ' c-call A, |
' (s") A, ' c-s" A, |
' lit+ A, ' c-lit+ A, |
' (.") A, ' c-." A, |
[IFDEF] (s") ' (s") A, ' c-c" A, [THEN] |
' "lit A, ' c-c" A, |
[IFDEF] (.") ' (.") A, ' c-c" A, [THEN] |
comp' leave drop A, ' c-leave A, |
[IFDEF] "lit ' "lit A, ' c-c" A, [THEN] |
comp' ?leave drop A, ' c-?leave A, |
[IFDEF] (c") ' (c") A, ' c-c" A, [THEN] |
' (do) A, ' c-do A, |
' (do) A, ' c-do A, |
' (?do) A, ' c-?do A, |
[IFDEF] (+do) ' (+do) A, ' c-?do A, [THEN] |
' (for) A, ' c-for A, |
[IFDEF] (u+do) ' (u+do) A, ' c-?do A, [THEN] |
' ?branch A, ' c-?branch A, |
[IFDEF] (-do) ' (-do) A, ' c-?do A, [THEN] |
' branch A, ' c-branch A, |
[IFDEF] (u-do) ' (u-do) A, ' c-?do A, [THEN] |
' (loop) A, ' c-loop A, |
' (?do) A, ' c-?do A, |
' (+loop) A, ' c-+loop A, |
' (for) A, ' c-for A, |
' (s+loop) A, ' c-s+loop A, |
' ?branch A, ' c-?branch A, |
' (-loop) A, ' c--loop A, |
' branch A, ' c-branch A, |
' (next) A, ' c-next A, |
' (loop) A, ' c-loop A, |
' ?branch-lp+!# A, ' c-?branch-lp+!# A, |
' (+loop) A, ' c-loop A, |
' branch-lp+!# A, ' c-branch-lp+!# A, |
[IFDEF] (s+loop) ' (s+loop) A, ' c-loop A, [THEN] |
' (loop)-lp+!# A, ' c-loop-lp+!# A, |
[IFDEF] (-loop) ' (-loop) A, ' c-loop A, [THEN] |
' (+loop)-lp+!# A, ' c-+loop-lp+!# A, |
' (next) A, ' c-loop A, |
' (s+loop)-lp+!# A, ' c-s+loop-lp+!# A, |
' ;s A, ' c-exit A, |
' (-loop)-lp+!# A, ' c--loop-lp+!# A, |
[IFDEF] (abort") ' (abort") A, ' c-abort" A, [THEN] |
' (next)-lp+!# A, ' c-next-lp+!# A, |
\ only defined if compiler is loaded |
' ;s A, ' c-exit A, |
[IFDEF] (compile) ' (compile) A, ' c-(compile) A, [THEN] |
' (does>) A, ' c-does> A, |
[IFDEF] (does>) ' (does>) A, ' c-does> A, [THEN] |
' (abort") A, ' c-abort" A, |
0 , here 0 , |
' (compile) A, ' c-(compile) A, |
|
0 , |
avariable c-extender |
|
c-extender ! |
|
|
\ DOTABLE 15may93jaw |
\ DOTABLE 15may93jaw |
|
|
: DoTable ( cfa -- flag ) |
: DoTable ( ca/cfa -- flag ) |
C-Table |
decompile-prim C-Table BEGIN ( cfa table-entry ) |
BEGIN dup @ dup |
dup @ dup 0= IF |
WHILE 2 pick <> |
drop cell+ @ dup IF ( next table!) |
WHILE 2 cells + |
dup @ |
REPEAT |
ELSE ( end!) |
nip cell+ perform |
2drop false EXIT |
true |
THEN |
ELSE |
THEN |
2drop drop false |
\ jump over to extender, if any 26jan97jaw |
THEN ; |
xt>threaded 2 pick <> |
|
WHILE |
|
2 cells + |
|
REPEAT |
|
nip cell+ perform |
|
true |
|
; |
|
|
: BranchTo? ( a-addr -- a-addr ) |
: BranchTo? ( a-addr -- a-addr ) |
Display? IF dup BranchAddr? |
Display? IF dup BranchAddr? |
IF BEGIN cell+ @ dup 20 u> |
IF |
|
BEGIN cell+ @ dup 20 u> |
IF drop nl S" BEGIN " .struc level+ |
IF drop nl S" BEGIN " .struc level+ |
ELSE |
ELSE |
dup Disable <> |
dup Disable <> over LeaveCode <> and |
IF WhileCode2 = |
IF WhileCode2 = |
IF nl S" THEN " .struc nl ELSE |
IF nl S" THEN " .struc nl ELSE |
level- nl S" THEN " .struc nl THEN |
level- nl S" THEN " .struc nl THEN |
Line 518 CREATE C-Table
|
Line 620 CREATE C-Table
|
THEN ; |
THEN ; |
|
|
: analyse ( a-addr1 -- a-addr2 ) |
: analyse ( a-addr1 -- a-addr2 ) |
Branches @ IF BranchTo? THEN |
Branches @ IF BranchTo? THEN |
dup cell+ swap @ |
dup cell+ swap @ |
dup >r DoTable r> swap IF drop EXIT THEN |
dup >r DoTable r> swap IF drop EXIT THEN |
Display? |
Display? |
IF look 0= IF drop dup 1 cells - @ . \ ABORT" SEE: Bua!" |
IF |
ELSE dup cell+ count 31 and rot wordinfo .string THEN bl cemit |
.word bl cemit |
ELSE drop |
ELSE |
THEN ; |
drop |
|
THEN ; |
|
|
: c-init |
: c-init |
0 YPos ! 0 XPos ! |
0 YPos ! 0 XPos ! |
Line 553 Defer xt-see-xt ( xt -- )
|
Line 656 Defer xt-see-xt ( xt -- )
|
then |
then |
space ; |
space ; |
|
|
Defer discode ( addr -- ) |
Defer discode ( addr u -- ) \ gforth |
\ hook for the disassembler: disassemble code at addr (as far as the |
\G hook for the disassembler: disassemble code at addr of length u |
\ disassembler thinks is sensible) |
' dump IS discode |
:noname ( addr -- ) |
|
drop ." ..." ; |
: next-head ( addr1 -- addr2 ) \ gforth |
IS discode |
\G find the next header starting after addr1, up to here (unreliable). |
|
here swap u+do |
|
i head? -2 and if |
|
i unloop exit |
|
then |
|
cell +loop |
|
here ; |
|
|
|
[ifundef] umin \ !! bootstrapping help |
|
: umin ( u1 u2 -- u ) |
|
2dup u> |
|
if |
|
swap |
|
then |
|
drop ; |
|
[then] |
|
|
|
: next-prim ( addr1 -- addr2 ) \ gforth |
|
\G find the next primitive after addr1 (unreliable) |
|
1+ >r -1 primstart |
|
begin ( umin head R: boundary ) |
|
@ dup |
|
while |
|
tuck name>int >code-address ( head1 umin ca R: boundary ) |
|
r@ - umin |
|
swap |
|
repeat |
|
drop dup r@ negate u>= |
|
\ "umin+boundary within [0,boundary)" = "umin within [-boundary,0)" |
|
if ( umin R: boundary ) \ no primitive found behind -> use a default length |
|
drop 31 |
|
then |
|
r> + ; |
|
|
: seecode ( xt -- ) |
: seecode ( xt -- ) |
dup s" Code" .defname |
dup s" Code" .defname |
>body discode |
>code-address |
." end-code" cr ; |
dup in-dictionary? \ user-defined code word? |
|
if |
|
dup next-head |
|
else |
|
dup next-prim |
|
then |
|
over - discode |
|
." end-code" cr ; |
: seevar ( xt -- ) |
: seevar ( xt -- ) |
s" Variable" .defname cr ; |
s" Variable" .defname cr ; |
: seeuser ( xt -- ) |
: seeuser ( xt -- ) |
Line 577 IS discode
|
Line 719 IS discode
|
: seedefer ( xt -- ) |
: seedefer ( xt -- ) |
dup >body @ xt-see-xt cr |
dup >body @ xt-see-xt cr |
dup s" Defer" .defname cr |
dup s" Defer" .defname cr |
>name dup ??? = if |
>name ?dup-if |
drop ." lastxt >body !" |
|
else |
|
." IS " .name cr |
." IS " .name cr |
|
else |
|
." latestxt >body !" |
then ; |
then ; |
: see-threaded ( addr -- ) |
: see-threaded ( addr -- ) |
C-Pass @ DebugMode = IF |
C-Pass @ DebugMode = IF |
Line 594 IS discode
|
Line 736 IS discode
|
S" DOES> " Com# .string XPos @ Level ! |
S" DOES> " Com# .string XPos @ Level ! |
>does-code see-threaded ; |
>does-code see-threaded ; |
: seecol ( xt -- ) |
: seecol ( xt -- ) |
dup s" :" .defname cr |
dup s" :" .defname nl |
2 Level ! |
2 Level ! |
>body see-threaded ; |
>body see-threaded ; |
: seefield ( xt -- ) |
: seefield ( xt -- ) |
dup >body ." 0 " ? ." 0 0 " |
dup >body ." 0 " ? ." 0 0 " |
s" Field" .defname cr ; |
s" Field" .defname cr ; |
|
|
: xt-see ( xt -- ) |
: xt-see ( xt -- ) \ gforth |
|
\G Decompile the definition represented by @i{xt}. |
cr c-init |
cr c-init |
dup >does-code |
dup >does-code |
if |
if |
seedoes EXIT |
seedoes EXIT |
then |
then |
dup forthstart u< |
dup xtprim? |
if |
if |
seecode EXIT |
seecode EXIT |
then |
then |
dup >code-address |
dup >code-address |
CASE |
CASE |
docon: of seecon endof |
docon: of seecon endof |
|
[IFDEF] dovalue: |
|
dovalue: of seevalue endof |
|
[THEN] |
docol: of seecol endof |
docol: of seecol endof |
dovar: of seevar endof |
dovar: of seevar endof |
|
[IFDEF] douser: |
douser: of seeuser endof |
douser: of seeuser endof |
|
[THEN] |
|
[IFDEF] dodefer: |
dodefer: of seedefer endof |
dodefer: of seedefer endof |
|
[THEN] |
|
[IFDEF] dofield: |
dofield: of seefield endof |
dofield: of seefield endof |
over >body of seecode endof |
[THEN] |
|
over of seecode endof \ direct threaded code words |
|
over >body of seecode endof \ indirect threaded code words |
2drop abort" unknown word type" |
2drop abort" unknown word type" |
ENDCASE ; |
ENDCASE ; |
|
|
: (xt-see-xt) ( xt -- ) |
: (xt-see-xt) ( xt -- ) |
xt-see cr ." lastxt" ; |
xt-see cr ." latestxt" ; |
' (xt-see-xt) is xt-see-xt |
' (xt-see-xt) is xt-see-xt |
|
|
: (.immediate) ( xt -- ) |
: (.immediate) ( xt -- ) |
Line 639 IS discode
|
Line 792 IS discode
|
if \ normal or immediate word |
if \ normal or immediate word |
swap xt-see (.immediate) |
swap xt-see (.immediate) |
else |
else |
r@ ['] compile-only-error = |
r@ ['] ticking-compile-only-error = |
if \ compile-only word |
if \ compile-only word |
swap xt-see (.immediate) ." compile-only" |
swap xt-see (.immediate) ." compile-only" |
else \ interpret/compile word |
else \ interpret/compile word |
r@ xt-see-xt cr |
r@ xt-see-xt cr |
swap xt-see-xt cr |
swap xt-see-xt cr |
." interpret/compile " over .name (.immediate) |
." interpret/compile: " over .name drop |
then |
then |
then |
then |
rdrop drop ; |
rdrop drop ; |
|
|
: see ( "name" -- ) \ tools |
: see ( "<spaces>name" -- ) \ tools |
|
\G Locate @var{name} using the current search order. Display the |
|
\G definition of @var{name}. Since this is achieved by decompiling |
|
\G the definition, the formatting is mechanised and some source |
|
\G information (comments, interpreted sequences within definitions |
|
\G etc.) is lost. |
name find-name dup 0= |
name find-name dup 0= |
IF |
IF |
drop -&13 bounce |
drop -&13 throw |
THEN |
THEN |
name-see ; |
name-see ; |
|
|