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| 1 : | anton | 1.1 | \ DEBUG.FS Debugger 12jun93jaw |
| 2 : | |||
| 3 : | anton | 1.9 | \ Copyright (C) 1995,1996,1997 Free Software Foundation, Inc. |
| 4 : | anton | 1.4 | |
| 5 : | \ This file is part of Gforth. | ||
| 6 : | |||
| 7 : | \ Gforth is free software; you can redistribute it and/or | ||
| 8 : | \ modify it under the terms of the GNU General Public License | ||
| 9 : | \ as published by the Free Software Foundation; either version 2 | ||
| 10 : | \ of the License, or (at your option) any later version. | ||
| 11 : | |||
| 12 : | \ This program is distributed in the hope that it will be useful, | ||
| 13 : | \ but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 14 : | \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 15 : | \ GNU General Public License for more details. | ||
| 16 : | |||
| 17 : | \ You should have received a copy of the GNU General Public License | ||
| 18 : | \ along with this program; if not, write to the Free Software | ||
| 19 : | \ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
| 20 : | |||
| 21 : | anton | 1.1 | decimal |
| 22 : | |||
| 23 : | jwilke | 1.8 | VARIABLE dbg-ip \ istruction pointer for debugger |
| 24 : | anton | 1.1 | |
| 25 : | : scanword ( body -- ) | ||
| 26 : | c-init C-Output off | ||
| 27 : | ScanMode c-pass ! | ||
| 28 : | dup MakePass | ||
| 29 : | 0 Level ! | ||
| 30 : | 0 XPos ! | ||
| 31 : | DisplayMode c-pass ! | ||
| 32 : | MakePass | ||
| 33 : | C-Output on ; | ||
| 34 : | |||
| 35 : | : .n 0 <# # # # # #S #> ctype bl cemit ; | ||
| 36 : | |||
| 37 : | : d.s ." [ " depth . ." ] " | ||
| 38 : | depth 4 min dup 0 ?DO dup i - pick .n LOOP drop ; | ||
| 39 : | |||
| 40 : | : NoFine XPos off YPos off | ||
| 41 : | NLFlag off Level off | ||
| 42 : | C-Formated off | ||
| 43 : | ; | ||
| 44 : | |||
| 45 : | : disp-step | ||
| 46 : | DisplayMode c-pass ! \ change to displaymode | ||
| 47 : | cr | ||
| 48 : | c-stop off | ||
| 49 : | jwilke | 1.8 | Base @ hex dbg-ip @ 8 u.r space dbg-ip @ @ 8 u.r space |
| 50 : | anton | 1.1 | Base ! |
| 51 : | NoFine 10 XPos ! | ||
| 52 : | jwilke | 1.8 | dbg-ip @ DisplayMode c-pass ! Analyse drop |
| 53 : | anton | 1.1 | 25 XPos @ - 0 max spaces ." -> " ; |
| 54 : | |||
| 55 : | : get-next ( -- n | n n ) | ||
| 56 : | DebugMode c-pass ! | ||
| 57 : | jwilke | 1.8 | dbg-ip @ Analyse ; |
| 58 : | anton | 1.1 | |
| 59 : | : jump ( addr -- ) | ||
| 60 : | r> drop \ discard last ip | ||
| 61 : | >r ; | ||
| 62 : | |||
| 63 : | AVARIABLE DebugLoop | ||
| 64 : | |||
| 65 : | jwilke | 1.8 | : breaker r> 1 cells - dbg-ip ! DebugLoop @ jump ; |
| 66 : | anton | 1.1 | |
| 67 : | CREATE BP 0 , 0 , | ||
| 68 : | CREATE DT 0 , 0 , | ||
| 69 : | |||
| 70 : | : set-bp ( 0 n | 0 n n -- ) | ||
| 71 : | 0. BP 2! | ||
| 72 : | ?dup IF dup BP ! dup @ DT ! | ||
| 73 : | ['] Breaker swap ! | ||
| 74 : | ?dup IF dup BP cell+ ! dup @ DT cell+ ! | ||
| 75 : | ['] Breaker swap ! drop THEN | ||
| 76 : | THEN ; | ||
| 77 : | |||
| 78 : | : restore-bp ( -- ) | ||
| 79 : | BP @ ?dup IF DT @ swap ! THEN | ||
| 80 : | BP cell+ @ ?dup IF DT cell+ @ swap ! THEN ; | ||
| 81 : | |||
| 82 : | VARIABLE Body | ||
| 83 : | |||
| 84 : | : NestXT ( xt -- true | body false ) | ||
| 85 : | jwilke | 1.10 | \ special deal for create does> words |
| 86 : | \ leaves body address on the stack | ||
| 87 : | dup >does-code IF dup >body swap THEN | ||
| 88 : | |||
| 89 : | anton | 1.1 | DebugMode c-pass ! C-Output off |
| 90 : | anton | 1.5 | xt-see C-Output on |
| 91 : | anton | 1.1 | c-pass @ DebugMode = dup |
| 92 : | IF ." Cannot debug" cr | ||
| 93 : | THEN ; | ||
| 94 : | |||
| 95 : | VARIABLE Nesting | ||
| 96 : | |||
| 97 : | : Leave-D | ||
| 98 : | C-Formated on | ||
| 99 : | C-Output on ; | ||
| 100 : | |||
| 101 : | VARIABLE Unnest | ||
| 102 : | |||
| 103 : | : D-KEY ( -- flag ) | ||
| 104 : | BEGIN | ||
| 105 : | Unnest @ IF 0 ELSE key THEN | ||
| 106 : | jwilke | 1.8 | CASE [char] n OF dbg-ip @ @ NestXT EXIT ENDOF |
| 107 : | anton | 1.1 | [char] s OF Leave-D |
| 108 : | -128 THROW ENDOF | ||
| 109 : | [char] a OF Leave-D | ||
| 110 : | -128 THROW ENDOF | ||
| 111 : | [char] d OF Leave-D | ||
| 112 : | cr ." Done..." cr | ||
| 113 : | Nesting off | ||
| 114 : | jwilke | 1.8 | r> drop dbg-ip @ >r |
| 115 : | anton | 1.1 | EXIT ENDOF |
| 116 : | [char] ? OF cr ." Nest Stop Done Unnest" cr | ||
| 117 : | ENDOF | ||
| 118 : | [char] u OF Unnest on true EXIT ENDOF | ||
| 119 : | drop true EXIT | ||
| 120 : | ENDCASE | ||
| 121 : | AGAIN ; | ||
| 122 : | |||
| 123 : | : (debug) ( body -- ) | ||
| 124 : | 0 Nesting ! | ||
| 125 : | BEGIN Unnest off | ||
| 126 : | cr ." Scanning code..." cr C-Formated on | ||
| 127 : | jwilke | 1.8 | dup scanword dbg-ip ! |
| 128 : | anton | 1.1 | cr ." Nesting debugger ready!" cr |
| 129 : | jwilke | 1.10 | BEGIN d.s disp-step D-Key |
| 130 : | anton | 1.1 | WHILE C-Stop @ 0= |
| 131 : | WHILE 0 get-next set-bp | ||
| 132 : | jwilke | 1.8 | dbg-ip @ jump |
| 133 : | anton | 1.1 | [ here DebugLoop ! ] |
| 134 : | restore-bp | ||
| 135 : | REPEAT | ||
| 136 : | jwilke | 1.8 | Nesting @ 0= IF EXIT THEN |
| 137 : | anton | 1.1 | -1 Nesting +! r> |
| 138 : | ELSE | ||
| 139 : | jwilke | 1.8 | dbg-ip @ 1 cells + >r 1 Nesting +! |
| 140 : | anton | 1.1 | THEN |
| 141 : | AGAIN ; | ||
| 142 : | |||
| 143 : | crook | 1.11 | : dbg \ gforth |
| 144 : | ' NestXT IF EXIT THEN (debug) Leave-D ; | ||
| 145 : | anton | 1.1 | |
| 146 : | jwilke | 1.12 | has? compiler [IF] |
| 147 : | crook | 1.11 | : break: \ gforth |
| 148 : | r> ['] (debug) >body >r ; | ||
| 149 : | anton | 1.6 | |
| 150 : | jwilke | 1.7 | : (break") |
| 151 : | crook | 1.11 | cr |
| 152 : | ." BREAK AT: " type cr | ||
| 153 : | r> ['] (debug) >body >r ; | ||
| 154 : | anton | 1.6 | |
| 155 : | crook | 1.11 | : break" \ gforth |
| 156 : | postpone s" | ||
| 157 : | postpone (break") ; immediate | ||
| 158 : | jwilke | 1.12 | [THEN] |
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