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3695b659 AT |
1 | #ifndef VVS_STDLIB_HEAP |
2 | #define VVS_STDLIB_HEAP | |
3 | ||
4 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ | |
5 | @ Description: | |
6 | @ This function writes pattern into the memory locations: | |
3d75b928 | 7 | @ startaddr -> startaddr+count |
3695b659 AT |
8 | @ Call Stack: |
9 | @ pattern | |
10 | @ startaddr | |
3d75b928 | 11 | @ count <-- TOS |
3695b659 AT |
12 | @ Return Stack: |
13 | @ <empty> | |
14 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ | |
15 | NSSVTTSSSN | Mark: 11000 (memset) | |
16 | ||
17 | @ Prepare the stack for computation. | |
18 | @ Addr | Contents | |
3d75b928 | 19 | @ 0 | count |
3695b659 AT |
20 | @ 1 | startaddr |
21 | @ 2 | pattern | |
22 | ||
23 | SSSSN | PUSH 0 (ptr) | |
24 | SNT | SWAP | |
25 | TTS | STORE | |
26 | SSSTN | PUSH 1 (ptr) | |
27 | SNT | SWAP | |
28 | TTS | STORE | |
29 | SSSTSN | PUSH 2 (ptr) | |
30 | SNT | SWAP | |
31 | TTS | STORE | |
32 | ||
33 | @ Store pattern into one memory location on each pass through this loop. | |
34 | NSSVSSSTTSSSSSSSSSSSN | Mark: 00011000 00000000 | |
35 | SSSSN | PUSH 0 (ptr) | |
36 | TTT | LOAD | |
37 | SSSTN | PUSH 1 (ptr) | |
38 | TTT | LOAD | |
39 | TSSS | ADD | |
40 | SSSTSN | PUSH 2 (ptr) | |
41 | TTT | LOAD | |
42 | TTS | STORE | |
43 | ||
3d75b928 | 44 | @ Decrement and check for loop end condition count == 0. |
3695b659 AT |
45 | SSSSN | PUSH 0 (ptr) |
46 | TTT | LOAD | |
47 | SNS | DUP | |
48 | NTSSSSTTSSSSSSSSSSTN | BRZ > 00011000 00000001 | |
49 | SSSTN | PUSH 1 | |
50 | TSST | SUBTRACT | |
51 | SSSSN | PUSH 0 (ptr) | |
52 | SNT | SWAP | |
53 | TTS | STORE | |
54 | NSNSSSTTSSSSSSSSSSSN | JMP > 00011000 00000000 | |
55 | ||
56 | @ Clean up and return | |
57 | NSSVSSSTTSSSSSSSSSSTN | Mark: 00011000 00000001 | |
58 | SNN | DROP | |
59 | NTN | RTS | |
60 | ||
3d75b928 AT |
61 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ |
62 | @ Description: | |
63 | @ This function copies count+1 words from source to destination. | |
64 | @ Call Stack: | |
65 | @ source | |
66 | @ destination | |
67 | @ count <-- TOS | |
68 | @ Return Stack: | |
69 | @ <empty> | |
70 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ | |
71 | NSSVTTSSTN | Mark: 11001 (memcpy) | |
72 | ||
73 | @ Prepare the stack for computation. | |
74 | @ Addr | Contents | |
75 | @ 0 | count | |
76 | @ 1 | destination | |
77 | @ 2 | source | |
78 | ||
79 | SSSSN | PUSH 0 (ptr) | |
80 | SNT | SWAP | |
81 | TTS | STORE | |
82 | SSSTN | PUSH 1 (ptr) | |
83 | SNT | SWAP | |
84 | TTS | STORE | |
85 | SSSTSN | PUSH 2 (ptr) | |
86 | SNT | SWAP | |
87 | TTS | STORE | |
88 | ||
89 | @ Copy one word on each pass through this loop. | |
90 | NSSVSSSTTSSTSSSSSSSSN | Mark: 00011001 00000000 | |
91 | SSSTN | PUSH 1 (ptr) | |
92 | TTT | LOAD | |
93 | SSSSN | PUSH 0 (ptr) | |
94 | TTT | LOAD | |
95 | TSSS | ADD | |
96 | SSSTSN | PUSH 2 (ptr) | |
97 | TTT | LOAD | |
98 | SSSSN | PUSH 0 (ptr) | |
99 | TTT | LOAD | |
100 | TSSS | ADD | |
101 | TTT | LOAD | |
102 | TTS | STORE | |
103 | ||
104 | @ Decrement and check for loop end conditions. | |
105 | SSSSN | PUSH 0 (ptr) | |
106 | TTT | LOAD | |
107 | SNS | DUP | |
108 | NTSSSSTTSSTSSSSSSSTN | BRZ > 00011001 00000001 | |
109 | SSSTN | PUSH 1 | |
110 | TSST | SUBTRACT | |
111 | SSSSN | PUSH 0 (ptr) | |
112 | SNT | SWAP | |
113 | TTS | STORE | |
114 | NSNSSSTTSSTSSSSSSSSN | JMP > 00011001 00000000 | |
115 | ||
116 | @ Clean up and return | |
117 | NSSVSSSTTSSTSSSSSSSTN | Mark: 00011001 00000001 | |
118 | SNN | DROP | |
119 | NTN | RTS | |
120 | ||
d63de3fa AT |
121 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ |
122 | @ Description: | |
123 | @ This function writes random words into the memory locations: | |
124 | @ startaddr -> startaddr+count | |
125 | @ Call Stack: | |
126 | @ count | |
127 | @ startaddr <-- TOS | |
128 | @ Return Stack: | |
129 | @ <empty> | |
130 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ | |
131 | NSSVTTSTSN | Mark: 11010 (memrand) | |
132 | SSSSN | PUSH 0 (ptr) | |
133 | SNT | SWAP | |
134 | TTS | STORE | |
135 | ||
136 | @ Store random word into one memory location on each pass through this loop. | |
137 | NSSVSSSTTSTSSSSSSSSSN | Mark: 00011010 00000000 | |
138 | SNS | DUP | |
139 | SSSSN | PUSH 0 (ptr) | |
140 | TTT | LOAD | |
141 | TSSS | ADD | |
142 | NSTTSSSSN | JSR > 10000 (random) | |
143 | TTS | STORE | |
144 | ||
145 | @ Decrement and check loop end conditions | |
146 | SNS | DUP | |
147 | NTSSSSTTSTSSSSSSSSTN | BRZ > 00011010 00000001 | |
148 | SSSTN | PUSH 1 | |
149 | TSST | SUBTRACT | |
150 | NSNSSSTTSTSSSSSSSSSN | JMP > 00011010 00000000 | |
151 | ||
d63de3fa AT |
152 | @ Clean up and return |
153 | NSSVSSSTTSTSSSSSSSSTN | Mark: 00011010 00000001 | |
154 | SNN | DROP | |
155 | NTN | RTS | |
156 | ||
87d27426 AT |
157 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ |
158 | @ Description: | |
159 | @ This function compares two blocks of memory: | |
160 | @ blk1ptr -> blk1ptr+count | |
161 | @ -- versus -- | |
162 | @ blk2ptr -> blk2ptr+count | |
163 | @ The return value is zero if the blocks are identical, otherwise non-zero. | |
164 | @ Call Stack: | |
165 | @ count | |
166 | @ blk1ptr | |
167 | @ blk2ptr <-- TOS | |
168 | @ Return Stack: | |
169 | @ retvalue <-- TOS | |
170 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ | |
171 | NSSVTTSTTN | Mark: 11011 (memcmp) | |
172 | ||
173 | @ Prepare the stack for computation. | |
174 | @ Addr | Contents | |
175 | @ 0 | blk2ptr | |
176 | @ 1 | blk1ptr | |
177 | ||
178 | SSSSN | PUSH 0 (ptr) | |
179 | SNT | SWAP | |
180 | TTS | STORE | |
181 | SSSTN | PUSH 1 (ptr) | |
182 | SNT | SWAP | |
183 | TTS | STORE | |
184 | ||
185 | @ Compare one word on each pass through this loop. | |
186 | NSSVSSSTTSTTSSSSSSSSN | Mark: 00011011 00000000 | |
187 | SNS | DUP | |
188 | SNS | DUP | |
189 | SSSSN | PUSH 0 (ptr) | |
190 | TTT | LOAD | |
191 | TSSS | ADD | |
192 | TTT | LOAD | |
193 | SNT | SWAP | |
194 | SSSTN | PUSH 1 (ptr) | |
195 | TTT | LOAD | |
196 | TSSS | ADD | |
197 | TTT | LOAD | |
198 | TSST | SUBTRACT | |
199 | NTSSSSTTSTTSSSSSSTSN | BRZ > 00011011 00000010 (jump if words match) | |
200 | ||
201 | @ Return 'match? = false' | |
202 | SNN | DROP | |
203 | SSSTN | PUSH 1 | |
204 | NTN | RTS | |
205 | ||
d00258fa | 206 | @ Decrement and loop again if loop is not complete. |
87d27426 AT |
207 | NSSVSSSTTSTTSSSSSSTSN | Mark: 00011011 00000010 |
208 | SNS | DUP | |
209 | NTSSSSTTSTTSSSSSSSTN | BRZ > 00011011 00000001 (jump if loop is complete) | |
210 | SSSTN | PUSH 1 | |
211 | TSST | SUBTRACT | |
212 | NSNSSSTTSTTSSSSSSSSN | JMP > 00011011 00000000 | |
213 | ||
214 | @ Return 'match? = true' | |
215 | NSSVSSSTTSTTSSSSSSSTN | Mark: 00011011 00000001 | |
216 | SNN | DROP | |
217 | SSSSN | PUSH 0 | |
218 | NTN | RTS | |
219 | ||
fd04fb41 AT |
220 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ |
221 | @ Description: | |
222 | @ This function searches the heap from address to address+count. | |
223 | @ If pattern is found, the return value is a pointer to the matching word. | |
224 | @ If not found, the return value is a null pointer. | |
225 | @ Call Stack: | |
226 | @ pattern | |
227 | @ count | |
228 | @ address <-- TOS | |
229 | @ Return Stack: | |
230 | @ pointer <-- TOS | |
231 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ | |
232 | NSSVTTTSSN | Mark: 11100 (memsrch) | |
233 | ||
234 | @ Prepare the stack for computation. | |
235 | @ Stack: | |
236 | @ offset <-- TOS | |
237 | @ Addr | Contents | |
238 | @ 0 | address | |
239 | @ 1 | count | |
240 | @ 2 | pattern | |
241 | ||
242 | SSSSN | PUSH 0 (ptr) | |
243 | SNT | SWAP | |
244 | TTS | STORE | |
245 | SSSTN | PUSH 1 (ptr) | |
246 | SNT | SWAP | |
247 | TTS | STORE | |
248 | SSSTSN | PUSH 2 (ptr) | |
249 | SNT | SWAP | |
250 | TTS | STORE | |
251 | ||
252 | @ Compare one word on each pass through this loop. | |
253 | NSSVSSSTTTSSSSSSSSSSN | Mark: 00011100 00000000 | |
254 | SNS | DUP | |
255 | SSSSN | PUSH 0 (ptr) | |
256 | TTT | LOAD | |
257 | TSSS | ADD | |
258 | TTT | LOAD | |
259 | SSSTSN | PUSH 2 (ptr) | |
260 | TTT | LOAD | |
261 | TSST | SUBTRACT | |
262 | NTSSSSTTTSSSSSSSSSTN | BRZ > 00011100 00000001 | |
263 | SNS | DUP | |
264 | SSSTN | PUSH 1 (ptr) | |
265 | TTT | LOAD | |
266 | TSST | SUBTRACT | |
267 | NTSSSSTTTSSSSSSSSTSN | BRZ > 00011100 00000010 | |
268 | SSSTN | PUSH 1 | |
269 | TSSS | ADD | |
270 | NSNSSSTTTSSSSSSSSSSN | JMP > 00011100 00000000 | |
271 | ||
272 | @ Found a match. Clean up and return. | |
273 | NSSVSSSTTTSSSSSSSSSTN | Mark: 00011100 00000001 | |
274 | SSSSN | PUSH 0 (ptr) | |
275 | TTT | LOAD | |
276 | TSSS | ADD | |
277 | NTN | RTS | |
278 | ||
279 | @ No match found. Clean up and return. | |
280 | NSSVSSSTTTSSSSSSSSTSN | Mark: 00011100 00000010 | |
281 | SNN | DROP | |
282 | SSSSN | PUSH 0 | |
283 | NTN | RTS | |
284 | ||
d63de3fa AT |
285 | #include <math.pvvs> |
286 | ||
3695b659 | 287 | #endif |