Commit | Line | Data |
---|---|---|
8e9db35f PB |
1 | \ @(#) misc2.fth 98/01/26 1.2 |
2 | \ Utilities for PForth extracted from HMSL | |
3 | \ | |
4 | \ Author: Phil Burk | |
1a088514 | 5 | \ Copyright 1994 3DO, Phil Burk, Larry Polansky, David Rosenboom |
8e9db35f | 6 | \ |
1f99f95d S |
7 | \ Permission to use, copy, modify, and/or distribute this |
8 | \ software for any purpose with or without fee is hereby granted. | |
9 | \ | |
10 | \ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL | |
11 | \ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED | |
12 | \ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL | |
13 | \ THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR | |
14 | \ CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING | |
15 | \ FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF | |
16 | \ CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
17 | \ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
8e9db35f PB |
18 | \ |
19 | \ 00001 9/14/92 Added call, 'c w->s | |
20 | \ 00002 11/23/92 Moved redef of : to loadcom.fth | |
21 | ||
22 | anew task-misc2.fth | |
23 | ||
24 | : 'N ( <name> -- , make 'n state smart ) | |
25 | bl word find | |
26 | IF | |
27 | state @ | |
28 | IF namebase - ( make nfa relocatable ) | |
29 | [compile] literal ( store nfa of word to be compiled ) | |
30 | compile namebase+ | |
31 | THEN | |
32 | THEN | |
33 | ; IMMEDIATE | |
34 | ||
35 | : ?LITERAL ( n -- , do literal if compiling ) | |
36 | state @ | |
37 | IF [compile] literal | |
38 | THEN | |
39 | ; | |
40 | ||
41 | : 'c ( <name> -- xt , state sensitive ' ) | |
42 | ' ?literal | |
43 | ; immediate | |
44 | ||
45 | variable if-debug | |
46 | ||
19ed2c32 PB |
47 | : ? ( address -- , fatch from address and print value ) |
48 | @ . | |
49 | ; | |
50 | ||
8e9db35f PB |
51 | decimal |
52 | create msec-delay 10000 , ( default for SUN ) | |
53 | : (MSEC) ( #msecs -- ) | |
54 | 0 | |
55 | do msec-delay @ 0 | |
56 | do loop | |
57 | loop | |
58 | ; | |
59 | ||
60 | defer msec | |
61 | ' (msec) is msec | |
62 | ||
63 | : SHIFT ( val n -- val<<n ) | |
64 | dup 0< | |
65 | IF negate arshift | |
66 | ELSE lshift | |
67 | THEN | |
68 | ; | |
69 | ||
70 | ||
71 | variable rand-seed here rand-seed ! | |
72 | : random ( -- random_number ) | |
73 | rand-seed @ | |
74 | 31421 * 6927 + | |
75 | 65535 and dup rand-seed ! | |
76 | ; | |
77 | : choose ( range -- random_number , in range ) | |
78 | random * -16 shift | |
79 | ; | |
80 | ||
81 | : wchoose ( hi lo -- random_number ) | |
82 | tuck - choose + | |
83 | ; | |
84 | ||
85 | ||
86 | \ sort top two items on stack. | |
87 | : 2sort ( a b -- a<b | b<a , largest on top of stack) | |
88 | 2dup > | |
89 | if swap | |
90 | then | |
91 | ; | |
92 | ||
93 | \ sort top two items on stack. | |
94 | : -2sort ( a b -- a>b | b>a , smallest on top of stack) | |
95 | 2dup < | |
96 | if swap | |
97 | then | |
98 | ; | |
99 | ||
100 | : barray ( #bytes -- ) ( index -- addr ) | |
101 | create allot | |
102 | does> + | |
103 | ; | |
104 | ||
105 | : warray ( #words -- ) ( index -- addr ) | |
106 | create 2* allot | |
107 | does> swap 2* + | |
108 | ; | |
109 | ||
110 | : array ( #cells -- ) ( index -- addr ) | |
111 | create cell* allot | |
112 | does> swap cell* + | |
113 | ; | |
114 | ||
115 | : .bin ( n -- , print in binary ) | |
116 | base @ binary swap . base ! | |
117 | ; | |
118 | : .dec ( n -- ) | |
119 | base @ decimal swap . base ! | |
120 | ; | |
121 | : .hex ( n -- ) | |
122 | base @ hex swap . base ! | |
123 | ; | |
124 | ||
125 | : B->S ( c -- c' , sign extend byte ) | |
126 | dup $ 80 and | |
127 | IF | |
e14f2533 | 128 | [ $ 0FF invert ] literal or |
8e9db35f | 129 | ELSE |
e14f2533 | 130 | $ 0FF and |
8e9db35f PB |
131 | THEN |
132 | ; | |
e14f2533 | 133 | : W->S ( 16bit-signed -- cell-signed ) |
8e9db35f | 134 | dup $ 8000 and |
e14f2533 PB |
135 | IF |
136 | [ $ 0FFFF invert ] literal or | |
8e9db35f | 137 | ELSE |
e14f2533 PB |
138 | $ 0FFFF and |
139 | THEN | |
8e9db35f PB |
140 | ; |
141 | ||
142 | : WITHIN { n1 n2 n3 -- flag } | |
143 | n2 n3 <= | |
144 | IF | |
145 | n2 n1 <= | |
146 | n1 n3 < AND | |
147 | ELSE | |
148 | n2 n1 <= | |
149 | n1 n3 < OR | |
150 | THEN | |
151 | ; | |
152 | ||
153 | : MOVE ( src dst num -- ) | |
154 | >r 2dup - 0< | |
155 | IF | |
156 | r> CMOVE> | |
157 | ELSE | |
158 | r> CMOVE | |
159 | THEN | |
160 | ; | |
161 | ||
162 | : ERASE ( caddr num -- ) | |
163 | dup 0> | |
164 | IF | |
165 | 0 fill | |
166 | ELSE | |
167 | 2drop | |
168 | THEN | |
169 | ; | |
170 | ||
171 | : BLANK ( addr u -- , set memory to blank ) | |
172 | DUP 0> | |
173 | IF | |
174 | BL FILL | |
175 | ELSE | |
176 | 2DROP | |
177 | THEN | |
178 | ; | |
179 | ||
180 | \ Obsolete but included for CORE EXT word set. | |
181 | : QUERY REFILL DROP ; | |
182 | VARIABLE SPAN | |
183 | : EXPECT accept span ! ; | |
184 | : TIB source drop ; | |
185 | ||
186 | ||
187 | : UNUSED ( -- unused , dictionary space ) | |
188 | CODELIMIT HERE - | |
189 | ; | |
190 | ||
191 | : MAP ( -- , dump interesting dictionary info ) | |
192 | ." Code Segment" cr | |
193 | ." CODEBASE = " codebase .hex cr | |
194 | ." HERE = " here .hex cr | |
195 | ." CODELIMIT = " codelimit .hex cr | |
196 | ." Compiled Code Size = " here codebase - . cr | |
197 | ." CODE-SIZE = " code-size @ . cr | |
198 | ." Code Room UNUSED = " UNUSED . cr | |
199 | ." Name Segment" cr | |
200 | ." NAMEBASE = " namebase .hex cr | |
201 | ." HEADERS-PTR @ = " headers-ptr @ .hex cr | |
202 | ." NAMELIMIT = " namelimit .hex cr | |
203 | ." CONTEXT @ = " context @ .hex cr | |
204 | ." LATEST = " latest .hex ." = " latest id. cr | |
205 | ." Compiled Name size = " headers-ptr @ namebase - . cr | |
206 | ." HEADERS-SIZE = " headers-size @ . cr | |
207 | ." Name Room Left = " namelimit headers-ptr @ - . cr | |
208 | ; | |
209 | ||
210 | ||
211 | \ Search for substring S2 in S1 | |
212 | : SEARCH { addr1 cnt1 addr2 cnt2 | addr3 cnt3 flag -- addr3 cnt3 flag } | |
213 | \ ." Search for " addr2 cnt2 type ." in " addr1 cnt1 type cr | |
214 | \ if true, s1 contains s2 at addr3 with cnt3 chars remaining | |
215 | \ if false, s3 = s1 | |
216 | addr1 -> addr3 | |
217 | cnt1 -> cnt3 | |
218 | cnt1 cnt2 < not | |
219 | IF | |
220 | cnt1 cnt2 - 1+ 0 | |
221 | DO | |
222 | true -> flag | |
223 | cnt2 0 | |
224 | ?DO | |
225 | addr2 i chars + c@ | |
226 | addr1 i j + chars + c@ <> \ mismatch? | |
227 | IF | |
228 | false -> flag | |
229 | LEAVE | |
230 | THEN | |
231 | LOOP | |
232 | flag | |
233 | IF | |
234 | addr1 i chars + -> addr3 | |
235 | cnt1 i - -> cnt3 | |
236 | LEAVE | |
237 | THEN | |
238 | LOOP | |
239 | THEN | |
240 | addr3 cnt3 flag | |
241 | ; | |
242 | ||
29bf5876 HE |
243 | private{ |
244 | ||
245 | : env= ( c-addr u c-addr1 u1 x -- x true true | c-addr u false ) | |
246 | { x } 2over compare 0= if 2drop x true true else false then | |
247 | ; | |
248 | ||
249 | : 2env= ( c-addr u c-addr1 u1 x y -- x y true true | c-addr u false ) | |
250 | { x y } 2over compare 0= if 2drop x y true true else false then | |
251 | ; | |
252 | ||
253 | 0 invert constant max-u | |
254 | 0 invert 1 rshift constant max-n | |
255 | ||
256 | }private | |
257 | ||
258 | : ENVIRONMENT? ( c-addr u -- false | i*x true ) | |
259 | s" /COUNTED-STRING" 255 env= if exit then | |
260 | s" /HOLD" 128 env= if exit then \ same as PAD | |
261 | s" /PAD" 128 env= if exit then | |
262 | s" ADDRESS-UNITS-BITS" 8 env= if exit then | |
263 | s" FLOORED" false env= if exit then | |
264 | s" MAX-CHAR" 255 env= if exit then | |
265 | s" MAX-D" max-n max-u 2env= if exit then | |
266 | s" MAX-N" max-n env= if exit then | |
267 | s" MAX-U" max-u env= if exit then | |
268 | s" MAX-UD" max-u max-u 2env= if exit then | |
269 | s" RETURN-STACK-CELLS" 512 env= if exit then \ DEFAULT_RETURN_DEPTH | |
270 | s" STACK-CELLS" 512 env= if exit then \ DEFAULT_USER_DEPTH | |
47126cac HE |
271 | \ FIXME: maybe define those: |
272 | \ s" FLOATING-STACK" | |
273 | \ s" MAX-FLOAT" | |
274 | \ s" #LOCALS" | |
275 | \ s" WORDLISTS" | |
29bf5876 HE |
276 | 2drop false |
277 | ; | |
278 | ||
279 | privatize |