| 1 | @ (c) 2020 Aaron Taylor <ataylor at subgeniuskitty dot com> |
| 2 | @ See LICENSE.txt file for copyright and license details. |
| 3 | |
| 4 | #ifndef VVS_STDLIB_HEAP |
| 5 | #define VVS_STDLIB_HEAP |
| 6 | |
| 7 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ |
| 8 | @ Name: |
| 9 | @ memset (11000) |
| 10 | @ Description: |
| 11 | @ Writes 'pattern' in memory locations 'startaddr' to 'startaddr+count'. |
| 12 | @ Call Stack: |
| 13 | @ pattern |
| 14 | @ startaddr |
| 15 | @ count <-- TOS |
| 16 | @ Return Stack: |
| 17 | @ <empty> |
| 18 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ |
| 19 | #include <stack.pvvs> |
| 20 | NSSVTTSSSN | Mark: 11000 (memset) |
| 21 | |
| 22 | @ Store 'pattern' into one memory location on each pass through this loop. |
| 23 | NSSVSSSTTSSSSSSSSSSSN | Mark: 00011000 00000000 |
| 24 | SNS | DUP |
| 25 | SSSTTN | PUSH 3 |
| 26 | NSTTTSSN | JSR > 1100 (deepdup) |
| 27 | TSSS | ADD |
| 28 | SSSTSSN | PUSH 4 |
| 29 | NSTTTSSN | JSR > 1100 (deepdup) |
| 30 | TTS | STORE |
| 31 | |
| 32 | @ Check for loop end condition 'count == 0'. |
| 33 | SNS | DUP |
| 34 | NTSSSSTTSSSSSSSSSSTN | BRZ > 00011000 00000001 |
| 35 | @ Decrement and loop again. |
| 36 | SSSTN | PUSH 1 |
| 37 | TSST | SUBTRACT |
| 38 | NSNSSSTTSSSSSSSSSSSN | JMP > 00011000 00000000 |
| 39 | |
| 40 | @ Clean up and return |
| 41 | NSSVSSSTTSSSSSSSSSSTN | Mark: 00011000 00000001 |
| 42 | SNN | DROP |
| 43 | SNN | DROP |
| 44 | SNN | DROP |
| 45 | NTN | RTS |
| 46 | |
| 47 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ |
| 48 | @ Name: |
| 49 | @ memcpy (11001) |
| 50 | @ Description: |
| 51 | @ Copies 'count+1' words from 'source' to 'destination'. |
| 52 | @ Call Stack: |
| 53 | @ source |
| 54 | @ destination |
| 55 | @ count <-- TOS |
| 56 | @ Return Stack: |
| 57 | @ <empty> |
| 58 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ |
| 59 | #include <stack.pvvs> |
| 60 | NSSVTTSSTN | Mark: 11001 (memcpy) |
| 61 | |
| 62 | @ Copy one word on each pass through this loop. |
| 63 | NSSVSSSTTSSTSSSSSSSSN | Mark: 00011001 00000000 |
| 64 | SNS | DUP |
| 65 | SSSTTN | PUSH 3 |
| 66 | NSTTTSSN | JSR > 1100 (deepdup) |
| 67 | TSSS | ADD |
| 68 | SSSTSN | PUSH 2 |
| 69 | NSTTTSSN | JSR > 1100 (deepdup) |
| 70 | SSSTSTN | PUSH 5 |
| 71 | NSTTTSSN | JSR > 1100 (deepdup) |
| 72 | TSSS | ADD |
| 73 | TTT | LOAD |
| 74 | TTS | STORE |
| 75 | |
| 76 | @ Check for loop end conditions and decrement. |
| 77 | SNS | DUP |
| 78 | NTSSSSTTSSTSSSSSSSTN | BRZ > 00011001 00000001 |
| 79 | SSSTN | PUSH 1 |
| 80 | TSST | SUBTRACT |
| 81 | NSNSSSTTSSTSSSSSSSSN | JMP > 00011001 00000000 |
| 82 | |
| 83 | @ Clean up and return |
| 84 | NSSVSSSTTSSTSSSSSSSTN | Mark: 00011001 00000001 |
| 85 | SNN | DROP |
| 86 | SNN | DROP |
| 87 | SNN | DROP |
| 88 | NTN | RTS |
| 89 | |
| 90 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ |
| 91 | @ Name: |
| 92 | @ memrand (11010) |
| 93 | @ Description: |
| 94 | @ Writes random words into memory locations 'startaddr' to 'startaddr+count'. |
| 95 | @ Call Stack: |
| 96 | @ count |
| 97 | @ startaddr <-- TOS |
| 98 | @ Return Stack: |
| 99 | @ <empty> |
| 100 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ |
| 101 | #include <math.pvvs> |
| 102 | #include <stack.pvvs> |
| 103 | NSSVTTSTSN | Mark: 11010 (memrand) |
| 104 | |
| 105 | @ Store random word into one memory location on each pass through this loop. |
| 106 | NSSVSSSTTSTSSSSSSSSSN | Mark: 00011010 00000000 |
| 107 | SNS | DUP |
| 108 | SSSTTN | PUSH 3 |
| 109 | NSTTTSSN | JSR > 1100 (deepdup) |
| 110 | TSSS | ADD |
| 111 | NSTTSSSSN | JSR > 10000 (random) |
| 112 | TTS | STORE |
| 113 | |
| 114 | @ Decrement and check loop end conditions |
| 115 | SNT | SWAP |
| 116 | SNS | DUP |
| 117 | NTSSSSTTSTSSSSSSSSTN | BRZ > 00011010 00000001 |
| 118 | SSSTN | PUSH 1 |
| 119 | TSST | SUBTRACT |
| 120 | SNT | SWAP |
| 121 | NSNSSSTTSTSSSSSSSSSN | JMP > 00011010 00000000 |
| 122 | |
| 123 | @ Clean up and return |
| 124 | NSSVSSSTTSTSSSSSSSSTN | Mark: 00011010 00000001 |
| 125 | SNN | DROP |
| 126 | SNN | DROP |
| 127 | NTN | RTS |
| 128 | |
| 129 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ |
| 130 | @ Name: |
| 131 | @ memcmp (11011) |
| 132 | @ Description: |
| 133 | @ Compares two blocks of memory: |
| 134 | @ blk1ptr -> blk1ptr+count |
| 135 | @ -- versus -- |
| 136 | @ blk2ptr -> blk2ptr+count |
| 137 | @ The return value is zero if the blocks are identical, otherwise non-zero. |
| 138 | @ Call Stack: |
| 139 | @ count |
| 140 | @ blk1ptr |
| 141 | @ blk2ptr <-- TOS |
| 142 | @ Return Stack: |
| 143 | @ retvalue <-- TOS |
| 144 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ |
| 145 | #include <stack.pvvs> |
| 146 | NSSVTTSTTN | Mark: 11011 (memcmp) |
| 147 | |
| 148 | @ Compare one word on each pass through this loop. |
| 149 | @ TOS> blk2ptr, blk1ptr, count |
| 150 | NSSVSSSTTSTTSSSSSSSSN | Mark: 00011011 00000000 |
| 151 | @ Retrieve *blk2ptr |
| 152 | SNS | DUP |
| 153 | SSSTSSN | PUSH 4 |
| 154 | NSTTTSSN | JSR > 1100 (deepdup) |
| 155 | TSSS | ADD |
| 156 | TTT | LOAD |
| 157 | @ Retrieve *blk1ptr |
| 158 | SSSTTN | PUSH 3 |
| 159 | NSTTTSSN | JSR > 1100 (deepdup) |
| 160 | SSSTSTN | PUSH 5 |
| 161 | NSTTTSSN | JSR > 1100 (deepdup) |
| 162 | TSSS | ADD |
| 163 | TTT | LOAD |
| 164 | @ Compare |
| 165 | TSST | SUBTRACT |
| 166 | @ TOS> *blk2ptr-*blk1ptr, blk2ptr, blk1ptr, count |
| 167 | NTSSSSTTSTTSSSSSSTSN | BRZ > 00011011 00000010 (jump if words match) |
| 168 | |
| 169 | @ Return 'match? = false' |
| 170 | SNN | DROP |
| 171 | SNN | DROP |
| 172 | SNN | DROP |
| 173 | SSSTN | PUSH 1 |
| 174 | NTN | RTS |
| 175 | |
| 176 | @ Decrement and loop again if loop is not complete. |
| 177 | NSSVSSSTTSTTSSSSSSTSN | Mark: 00011011 00000010 |
| 178 | SSSTTN | PUSH 3 |
| 179 | NSTTTSSN | JSR > 1100 (deepdup) |
| 180 | @ TOS> count, blk2ptr, blk1ptr, count |
| 181 | NTSSSSTTSTTSSSSSSSTN | BRZ > 00011011 00000001 (jump if loop is complete) |
| 182 | SSSTTN | PUSH 3 |
| 183 | NSTTSTTN | JSR > 1011 (stackrotatereverse) |
| 184 | SSSTN | PUSH 1 |
| 185 | TSSS | ADD |
| 186 | SSSTTN | PUSH 3 |
| 187 | NSTTSTSN | JSR > 1010 (stackrotate) |
| 188 | NSNSSSTTSTTSSSSSSSSN | JMP > 00011011 00000000 |
| 189 | |
| 190 | @ Return 'match? = true' |
| 191 | NSSVSSSTTSTTSSSSSSSTN | Mark: 00011011 00000001 |
| 192 | SNN | DROP |
| 193 | SNN | DROP |
| 194 | SNN | DROP |
| 195 | SSSSN | PUSH 0 |
| 196 | NTN | RTS |
| 197 | |
| 198 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ |
| 199 | @ Name: |
| 200 | @ memsrch (11100) |
| 201 | @ Description: |
| 202 | @ Searches the heap from 'address' to 'address+count'. |
| 203 | @ If 'pattern' is found, the return value is a pointer to the matching word. |
| 204 | @ If not found, the return value is a null pointer. |
| 205 | @ Call Stack: |
| 206 | @ pattern |
| 207 | @ count |
| 208 | @ address <-- TOS |
| 209 | @ Return Stack: |
| 210 | @ pointer <-- TOS |
| 211 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ |
| 212 | #include <stack.pvvs> |
| 213 | NSSVTTTSSN | Mark: 11100 (memsrch) |
| 214 | |
| 215 | @ Setup an 'offset counter' on the stack. |
| 216 | SSSSN | PUSH 0 |
| 217 | |
| 218 | @ Compare one word on each pass through this loop. |
| 219 | @ TOS> counter, address, count, pattern |
| 220 | NSSVSSSTTTSSSSSSSSSSN | Mark: 00011100 00000000 |
| 221 | SNT | SWAP |
| 222 | SNS | DUP |
| 223 | SSSTTN | PUSH 3 |
| 224 | NSTTSTTN | JSR > 1011 (stackrotatereverse) |
| 225 | SNS | DUP |
| 226 | SSSTTN | PUSH 3 |
| 227 | NSTTSTTN | JSR > 1011 (stackrotatereverse) |
| 228 | TSSS | ADD |
| 229 | TTT | LOAD |
| 230 | SSSTSTN | PUSH 5 |
| 231 | NSTTTSSN | JSR > 1100 (deepdup) |
| 232 | TSST | SUBTRACT |
| 233 | @ TOS> pattern-(address+counter), counter, address, count, pattern |
| 234 | NTSSSSTTTSSSSSSSSSTN | BRZ > 00011100 00000001 |
| 235 | |
| 236 | @ Test for end of loop by comparing 'counter' and 'count'. |
| 237 | SNS | DUP |
| 238 | SSSTSSN | PUSH 4 |
| 239 | NSTTTSSN | JSR > 1100 (deepdup) |
| 240 | TSST | SUBTRACT |
| 241 | @ TOS> counter-count, counter, address, count, pattern |
| 242 | NTSSSSTTTSSSSSSSSTSN | BRZ > 00011100 00000010 |
| 243 | |
| 244 | @ Increment 'counter' and loop again. |
| 245 | SSSTN | PUSH 1 |
| 246 | TSSS | ADD |
| 247 | NSNSSSTTTSSSSSSSSSSN | JMP > 00011100 00000000 |
| 248 | |
| 249 | @ Found a match. Clean up and return. |
| 250 | NSSVSSSTTTSSSSSSSSSTN | Mark: 00011100 00000001 |
| 251 | TSSS | ADD |
| 252 | SNT | SWAP |
| 253 | SNN | DROP |
| 254 | SNT | SWAP |
| 255 | SNN | DROP |
| 256 | NTN | RTS |
| 257 | |
| 258 | @ No match found. Clean up and return. |
| 259 | NSSVSSSTTTSSSSSSSSTSN | Mark: 00011100 00000010 |
| 260 | SNN | DROP |
| 261 | SNN | DROP |
| 262 | SNN | DROP |
| 263 | SNN | DROP |
| 264 | SSSSN | PUSH 0 |
| 265 | NTN | RTS |
| 266 | |
| 267 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ |
| 268 | @ Name: |
| 269 | @ slurp (11110) |
| 270 | @ Description: |
| 271 | @ Reads values from heap to stack in complementary order to 'spew'. |
| 272 | @ Call Stack: |
| 273 | @ address |
| 274 | @ count <-- TOS |
| 275 | @ Return Stack: |
| 276 | @ heap[address+count] |
| 277 | @ ... |
| 278 | @ heap[address+1] |
| 279 | @ heap[address] <-- TOS |
| 280 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ |
| 281 | #include <stack.pvvs> |
| 282 | NSSVTTTTSN | Mark: 11110 (slurp) |
| 283 | |
| 284 | @ Load one word from heap on each pass. |
| 285 | SNS | DUP |
| 286 | SSSTTN | PUSH 3 |
| 287 | NSTTSTSN | JSR > 1010 (stackrotate) |
| 288 | SNT | SWAP |
| 289 | SNS | DUP |
| 290 | SSSTTN | PUSH 3 |
| 291 | NSTTSTSN | JSR > 1010 (stackrotate) |
| 292 | TSSS | ADD |
| 293 | TTT | LOAD |
| 294 | SSSTTN | PUSH 3 |
| 295 | NSTTSTSN | JSR > 1010 (stackrotate) |
| 296 | SNT | SWAP |
| 297 | |
| 298 | @ Check for loop completion. |
| 299 | SNS | DUP |
| 300 | NTSSSSTTTTSSSSSSSSSN | BRZ > 00011110 00000000 |
| 301 | SSSTN | PUSH 1 |
| 302 | TSST | SUBTRACT |
| 303 | NSNTTTTSN | JMP > 11110 (slurp) |
| 304 | |
| 305 | @ Clean up and return. |
| 306 | NSSVSSSTTTTSSSSSSSSSN | Mark: 00011110 00000000 |
| 307 | SNN | DROP |
| 308 | SNN | DROP |
| 309 | NTN | RTS |
| 310 | |
| 311 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ |
| 312 | @ Name: |
| 313 | @ spew (11111) |
| 314 | @ Description: |
| 315 | @ Writes values from stack to heap in this order: |
| 316 | @ TOS -> heap[address] |
| 317 | @ TOS+1 -> heap[address+1] |
| 318 | @ ... |
| 319 | @ TOS+n -> heap[address+count] |
| 320 | @ Call Stack: |
| 321 | @ data-words |
| 322 | @ ... |
| 323 | @ data-words |
| 324 | @ address |
| 325 | @ count <-- TOS |
| 326 | @ Return Stack: |
| 327 | @ <empty> |
| 328 | @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ |
| 329 | #include <stack.pvvs> |
| 330 | NSSVTTTTTN | Mark: 11111 (spew) |
| 331 | |
| 332 | @ Create a counter that doubles as a dest. pointer offset generator. |
| 333 | SSSSN | PUSH 0 |
| 334 | |
| 335 | @ Store one word to heap on each pass. |
| 336 | NSSVSSSTTTTTSSSSSSSSN | Mark: 00011111 00000000 |
| 337 | SNS | DUP |
| 338 | SSSTSSN | PUSH 4 |
| 339 | NSTTTSSN | JSR > 1100 (deepdup) |
| 340 | TSSS | ADD |
| 341 | SSSTSTN | PUSH 5 |
| 342 | NSTTSTTN | JSR > 1011 (stackrotatereverse) |
| 343 | TTS | STORE |
| 344 | |
| 345 | @ Check for loop completion. |
| 346 | SNT | SWAP |
| 347 | SNS | DUP |
| 348 | SSSTTN | PUSH 3 |
| 349 | NSTTSTTN | JSR > 1011 (stackrotatereverse) |
| 350 | SNS | DUP |
| 351 | SSSTTN | PUSH 3 |
| 352 | NSTTSTTN | JSR > 1011 (stackrotatereverse) |
| 353 | TSST | SUBTRACT |
| 354 | NTSSSSTTTTTSSSSSSSTN | BRZ > 00011111 00000001 |
| 355 | |
| 356 | @ Increment counter. |
| 357 | SSSTN | PUSH 1 |
| 358 | TSSS | ADD |
| 359 | NSNSSSTTTTTSSSSSSSSN | JMP > 00011111 00000000 |
| 360 | |
| 361 | @ Clean up and return. |
| 362 | NSSVSSSTTTTTSSSSSSSTN | Mark: 00011111 00000001 |
| 363 | SNN | DROP |
| 364 | SNN | DROP |
| 365 | SNN | DROP |
| 366 | NTN | RTS |
| 367 | |
| 368 | #endif |