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annotate lwasm/cycle.c @ 581:10f8fc64481d
Fix a slight error in cases where 0b is present but not followed by 0 or 1
This fixes an error where 0b is not followed by 0 or 1. In that case, the 0b
prefix should not be consumed but the code which attempted to not consume it
failed to actually update the parse pointer correctly.
| author | William Astle <lost@l-w.ca> |
|---|---|
| date | Thu, 08 Aug 2024 13:40:00 -0600 |
| parents | e545196bf14f |
| children |
| rev | line source |
|---|---|
| 378 | 1 /* |
| 2 cycle.c | |
| 3 | |
| 4 Copyright (c) 2015 Erik Gavriluk | |
| 5 Dual-licensed BSD 3-CLAUSE and GPL as per below. | |
| 6 Thanks to John Kowalksi for cycle count verification. | |
| 7 | |
| 8 This file is part of LWTOOLS. | |
| 9 | |
| 10 LWTOOLS is free software: you can redistribute it and/or modify it under the | |
| 11 terms of the GNU General Public License as published by the Free Software | |
| 12 Foundation, either version 3 of the License, or (at your option) any later | |
| 13 version. | |
| 14 | |
| 15 This program is distributed in the hope that it will be useful, but WITHOUT | |
| 16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 17 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 18 more details. | |
| 19 | |
| 20 You should have received a copy of the GNU General Public License along with | |
| 21 this program. If not, see <http://www.gnu.org/licenses/>. | |
| 22 */ | |
| 23 | |
| 24 #include "lwasm.h" | |
| 25 | |
| 26 typedef struct | |
| 27 { | |
| 28 int opc; | |
| 29 int cycles_6809; | |
| 30 int cycles_6309; | |
| 31 cycle_flags flags; | |
| 32 } cycletable_t; | |
| 33 | |
| 34 static cycletable_t cycletable[] = | |
| 35 { | |
| 36 { 0x3a, 3, 1, 0 }, // ABX | |
| 37 | |
| 38 { 0x89, 2, 2, 0 }, // ADCA | |
| 39 { 0x99, 4, 3, 0 }, | |
| 40 { 0xa9, 4, 4, CYCLE_ADJ }, | |
| 41 { 0xb9, 5, 4, 0 }, | |
| 42 | |
| 43 { 0xc9, 2, 2, 0 }, // ADCB | |
| 44 { 0xd9, 4, 3, 0 }, | |
| 45 { 0xe9, 4, 4, CYCLE_ADJ }, | |
| 46 { 0xf9, 5, 4, 0 }, | |
| 47 | |
| 48 { 0x1089, 5, 4, 0 }, // ADCD | |
| 49 { 0x1099, 7, 5, 0 }, | |
| 50 { 0x10a9, 7, 6, CYCLE_ADJ }, | |
| 51 { 0x10b9, 8, 6, 0 }, | |
| 52 | |
| 53 { 0x8b, 2, 2, 0 }, // ADDA | |
| 54 { 0x9b, 4, 3, 0 }, | |
| 55 { 0xab, 4, 4, CYCLE_ADJ }, | |
| 56 { 0xbb, 5, 4, 0 }, | |
| 57 | |
| 58 { 0xcb, 2, 2, 0 }, // ADDB | |
| 59 { 0xdb, 4, 3, 0 }, | |
| 60 { 0xeb, 4, 4, CYCLE_ADJ }, | |
| 61 { 0xfb, 5, 4, 0 }, | |
| 62 | |
| 63 { 0xc3, 4, 3, 0 }, // ADDD | |
| 64 { 0xd3, 6, 4, 0 }, | |
| 65 { 0xe3, 6, 5, CYCLE_ADJ }, | |
| 66 { 0xf3, 7, 5, 0 }, | |
| 67 | |
| 68 { 0x118b, 3, 3, 0 }, // ADDE | |
| 69 { 0x119b, 5, 4, 0 }, | |
| 70 { 0x11ab, 5, 5, CYCLE_ADJ }, | |
| 71 { 0x11bb, 6, 5, 0 }, | |
| 72 | |
| 73 { 0x11cb, 3, 3, 0 }, // ADDF | |
| 74 { 0x11db, 5, 4, 0 }, | |
| 75 { 0x11eb, 5, 5, CYCLE_ADJ }, | |
| 76 { 0x11fb, 6, 5, 0 }, | |
| 77 | |
| 78 { 0x1031, 4, 4, 0 }, // ADCR | |
| 79 { 0x1030, 4, 4, 0 }, // ADDR | |
| 80 { 0x1034, 4, 4, 0 }, // ANDR | |
| 81 { 0x1037, 4, 4, 0 }, // CMPR | |
| 82 { 0x1036, 4, 4, 0 }, // EORR | |
| 83 { 0x1035, 4, 4, 0 }, // ORR | |
| 84 { 0x1033, 4, 4, 0 }, // SBCR | |
| 85 { 0x1032, 4, 4, 0 }, // SUBR | |
| 86 | |
| 87 { 0x108b, 5, 4, 0 }, // ADDW | |
| 88 { 0x109b, 7, 5, 0 }, | |
| 89 { 0x10ab, 7, 6, CYCLE_ADJ }, | |
| 90 { 0x10bb, 8, 6, 0 }, | |
| 91 | |
| 92 { 0x02, 6, 6, 0 }, // AIM | |
| 93 { 0x62, 7, 7, CYCLE_ADJ }, | |
| 94 { 0x72, 7, 7, 0 }, | |
| 95 | |
| 96 { 0x84, 2, 2, 0 }, // ANDA | |
| 97 { 0x94, 4, 3, 0 }, | |
| 98 { 0xa4, 4, 4, CYCLE_ADJ }, | |
| 99 { 0xb4, 5, 4, 0 }, | |
| 100 | |
| 101 { 0xc4, 2, 2, 0 }, // ANDB | |
| 102 { 0xd4, 4, 3, 0 }, | |
| 103 { 0xe4, 4, 4, CYCLE_ADJ }, | |
| 104 { 0xf4, 5, 4, 0 }, | |
| 105 | |
| 106 { 0x1c, 3, 2, 0 }, // ANDCC | |
| 107 | |
| 108 { 0x1084, 5, 4, 0 }, // ANDD | |
| 109 { 0x1094, 7, 5, 0 }, | |
| 110 { 0x10a4, 7, 6, CYCLE_ADJ }, | |
| 111 { 0x10b4, 8, 6, 0 }, | |
| 112 | |
| 113 { 0x48, 2, 1, 0 }, // ASL | |
| 114 { 0x58, 2, 1, 0 }, | |
| 115 { 0x1048, 3, 2, 0 }, | |
| 116 { 0x08, 6, 5, 0 }, | |
| 117 { 0x68, 6, 6, CYCLE_ADJ }, | |
| 118 { 0x78, 7, 6, 0 }, | |
| 119 | |
| 120 { 0x47, 2, 1, 0 }, // ASR | |
| 121 { 0x57, 2, 1, 0 }, | |
| 122 { 0x1047, 3, 2, 0 }, | |
|
475
b9917c4dc6cf
Fix cycle counts for asr, cmpe, cmpf and cmpw.
Doug Masten <doug@dougmasten.com>
parents:
408
diff
changeset
|
123 { 0x07, 6, 5, 0 }, |
| 378 | 124 { 0x67, 6, 6, CYCLE_ADJ }, |
| 125 { 0x77, 7, 6, 0 }, | |
| 126 | |
| 127 { 0x1130, 7, 6, 0 }, // BAND | |
| 128 { 0x1131, 7, 6, 0 }, // BIAND | |
| 129 { 0x1132, 7, 6, 0 }, // BOR | |
| 130 { 0x1133, 7, 6, 0 }, // BIOR | |
| 131 { 0x1134, 7, 6, 0 }, // BEOR | |
| 132 { 0x1135, 7, 6, 0 }, // BIEOR | |
| 133 | |
| 134 { 0x85, 2, 2, 0 }, // BITA | |
| 135 { 0x95, 4, 3, 0 }, | |
| 136 { 0xa5, 4, 4, CYCLE_ADJ }, | |
| 137 { 0xb5, 5, 4, 0 }, | |
| 138 | |
| 139 { 0xc5, 2, 2, 0 }, // BITB | |
| 140 { 0xd5, 4, 3, 0 }, | |
| 141 { 0xe5, 4, 4, CYCLE_ADJ }, | |
| 142 { 0xf5, 5, 4, 0 }, | |
| 143 | |
| 144 { 0x1085, 5, 4, 0 }, // BITD | |
| 145 { 0x1095, 7, 5, 0 }, | |
| 146 { 0x10a5, 7, 6, CYCLE_ADJ }, | |
| 147 { 0x10b5, 8, 6, 0 }, | |
| 148 | |
| 149 { 0x113c, 4, 4, 0 }, // BITMD | |
| 150 | |
| 151 { 0x20, 3, 3, 0 }, // BRA | |
| 152 { 0x21, 3, 3, 0 }, | |
| 153 { 0x22, 3, 3, 0 }, | |
| 154 { 0x23, 3, 3, 0 }, | |
| 155 { 0x24, 3, 3, 0 }, | |
| 156 { 0x25, 3, 3, 0 }, | |
| 157 { 0x26, 3, 3, 0 }, | |
| 158 { 0x27, 3, 3, 0 }, | |
| 159 { 0x28, 3, 3, 0 }, | |
| 160 { 0x29, 3, 3, 0 }, | |
| 161 { 0x2a, 3, 3, 0 }, | |
| 162 { 0x2b, 3, 3, 0 }, | |
| 163 { 0x2c, 3, 3, 0 }, | |
| 164 { 0x2d, 3, 3, 0 }, | |
| 165 { 0x2e, 3, 3, 0 }, | |
| 166 { 0x2f, 3, 3, 0 }, | |
| 167 | |
| 168 { 0x8d, 7, 6, 0 }, // BSR | |
| 169 | |
| 170 { 0x4f, 2, 1, 0 }, // CLR | |
| 171 { 0x5f, 2, 1, 0 }, | |
| 172 { 0x104f, 3, 2, 0 }, | |
| 173 { 0x114f, 3, 2, 0 }, | |
| 174 { 0x115f, 3, 2, 0 }, | |
| 175 { 0x105f, 3, 2, 0 }, | |
| 176 { 0x0f, 6, 5, 0 }, | |
| 177 { 0x6f, 6, 6, CYCLE_ADJ }, | |
| 178 { 0x7f, 7, 6, 0 }, | |
| 179 | |
| 180 { 0x81, 2, 2, 0 }, // CMPA | |
| 181 { 0x91, 4, 3, 0 }, | |
| 182 { 0xa1, 4, 4, CYCLE_ADJ }, | |
| 183 { 0xb1, 5, 4, 0 }, | |
| 184 | |
| 185 { 0xc1, 2, 2, 0 }, // CMPB | |
| 186 { 0xd1, 4, 3, 0 }, | |
| 187 { 0xe1, 4, 4, CYCLE_ADJ }, | |
| 188 { 0xf1, 5, 4, 0 }, | |
| 189 | |
| 190 { 0x1083, 5, 4, 0 }, // CMPD | |
| 191 { 0x1093, 7, 5, 0 }, | |
| 192 { 0x10a3, 7, 6, CYCLE_ADJ }, | |
| 193 { 0x10b3, 8, 6, 0 }, | |
| 194 | |
|
475
b9917c4dc6cf
Fix cycle counts for asr, cmpe, cmpf and cmpw.
Doug Masten <doug@dougmasten.com>
parents:
408
diff
changeset
|
195 { 0x1181, 3, 3, 0 }, // CMPE |
|
b9917c4dc6cf
Fix cycle counts for asr, cmpe, cmpf and cmpw.
Doug Masten <doug@dougmasten.com>
parents:
408
diff
changeset
|
196 { 0x1191, 5, 4, 0 }, |
|
b9917c4dc6cf
Fix cycle counts for asr, cmpe, cmpf and cmpw.
Doug Masten <doug@dougmasten.com>
parents:
408
diff
changeset
|
197 { 0x11a1, 5, 5, CYCLE_ADJ }, |
|
b9917c4dc6cf
Fix cycle counts for asr, cmpe, cmpf and cmpw.
Doug Masten <doug@dougmasten.com>
parents:
408
diff
changeset
|
198 { 0x11b1, 6, 5, 0 }, |
| 378 | 199 |
|
475
b9917c4dc6cf
Fix cycle counts for asr, cmpe, cmpf and cmpw.
Doug Masten <doug@dougmasten.com>
parents:
408
diff
changeset
|
200 { 0x11c1, 3, 3, 0 }, // CMPF |
|
b9917c4dc6cf
Fix cycle counts for asr, cmpe, cmpf and cmpw.
Doug Masten <doug@dougmasten.com>
parents:
408
diff
changeset
|
201 { 0x11d1, 5, 4, 0 }, |
|
b9917c4dc6cf
Fix cycle counts for asr, cmpe, cmpf and cmpw.
Doug Masten <doug@dougmasten.com>
parents:
408
diff
changeset
|
202 { 0x11e1, 5, 5, CYCLE_ADJ }, |
|
b9917c4dc6cf
Fix cycle counts for asr, cmpe, cmpf and cmpw.
Doug Masten <doug@dougmasten.com>
parents:
408
diff
changeset
|
203 { 0x11f1, 6, 5, 0 }, |
| 378 | 204 |
| 205 { 0x118c, 5, 4, 0 }, // CMPS | |
| 206 { 0x119c, 7, 5, 0 }, | |
| 207 { 0x11ac, 7, 6, CYCLE_ADJ }, | |
| 208 { 0x11bc, 8, 6, 0 }, | |
| 209 | |
| 210 { 0x1183, 5, 4, 0 }, // CMPU | |
| 211 { 0x1193, 7, 5, 0 }, | |
| 212 { 0x11a3, 7, 6, CYCLE_ADJ }, | |
| 213 { 0x11b3, 8, 6, 0 }, | |
| 214 | |
|
475
b9917c4dc6cf
Fix cycle counts for asr, cmpe, cmpf and cmpw.
Doug Masten <doug@dougmasten.com>
parents:
408
diff
changeset
|
215 { 0x1081, 5, 4, 0 }, // CMPW |
|
b9917c4dc6cf
Fix cycle counts for asr, cmpe, cmpf and cmpw.
Doug Masten <doug@dougmasten.com>
parents:
408
diff
changeset
|
216 { 0x1091, 7, 5, 0 }, |
|
b9917c4dc6cf
Fix cycle counts for asr, cmpe, cmpf and cmpw.
Doug Masten <doug@dougmasten.com>
parents:
408
diff
changeset
|
217 { 0x10a1, 7, 6, CYCLE_ADJ }, |
|
b9917c4dc6cf
Fix cycle counts for asr, cmpe, cmpf and cmpw.
Doug Masten <doug@dougmasten.com>
parents:
408
diff
changeset
|
218 { 0x10b1, 8, 6, 0 }, |
| 378 | 219 |
| 220 { 0x8c, 4, 3, 0 }, // CMPX | |
| 221 { 0x9c, 6, 4, 0 }, | |
| 222 { 0xac, 6, 5, CYCLE_ADJ }, | |
| 223 { 0xbc, 7, 5, 0 }, | |
| 224 | |
| 225 { 0x108c, 5, 4, 0 }, // CMPY | |
| 226 { 0x109c, 7, 5, 0 }, | |
| 227 { 0x10ac, 7, 6, CYCLE_ADJ }, | |
| 228 { 0x10bc, 8, 6, 0 }, | |
| 229 | |
| 230 { 0x43, 2, 1, 0 }, // COMA | |
| 231 { 0x53, 2, 1, 0 }, // COMB | |
| 232 { 0x1043, 3, 2, 0 }, // COMD | |
| 233 { 0x1143, 3, 2, 0 }, // COME | |
| 234 { 0x1153, 3, 2, 0 }, // COMF | |
| 235 { 0x1053, 3, 2, 0 }, // COMW | |
| 236 | |
| 237 { 0x03, 6, 5, 0 }, // COM | |
| 238 { 0x63, 6, 6, CYCLE_ADJ }, | |
| 239 { 0x73, 7, 6, 0 }, | |
| 240 | |
| 385 | 241 { 0x3c, 22, 20, CYCLE_ESTIMATED }, // CWAI |
| 378 | 242 |
| 243 { 0x19, 2, 1, 0 }, // DAA | |
| 244 | |
| 245 { 0x4a, 2, 1, 0 }, // DECA | |
| 246 { 0x5a, 2, 1, 0 }, // DECB | |
| 247 { 0x104a, 3, 2, 0 }, // DECD | |
| 248 { 0x114a, 3, 2, 0 }, // DECE | |
| 249 { 0x115a, 3, 2, 0 }, // DECF | |
| 250 { 0x105a, 3, 2, 0 }, // DECW | |
| 251 | |
| 252 { 0x0a, 6, 5, 0 }, // DEC | |
| 253 { 0x6a, 6, 6, CYCLE_ADJ }, | |
| 254 { 0x7a, 7, 6, 0 }, | |
| 255 | |
| 256 { 0x118d, 25, 25, 0 }, // DIVD | |
| 257 { 0x119d, 27, 26, 0 }, | |
| 258 { 0x11ad, 27, 27, CYCLE_ADJ }, | |
| 259 { 0x11bd, 28, 27, 0 }, | |
| 260 | |
| 261 { 0x118e, 34, 34, 0 }, // DIVQ | |
| 262 { 0x119e, 36, 35, 0 }, | |
| 263 { 0x11ae, 36, 36, 0 }, | |
| 264 { 0x11be, 37, 36, 0 }, | |
| 265 | |
| 266 { 0x05, 6, 6, 0 }, // EIM | |
| 267 { 0x65, 7, 7, CYCLE_ADJ }, | |
| 268 { 0x75, 7, 7, 0 }, | |
| 269 | |
| 270 { 0x88, 2, 2, 0 }, // EORA | |
| 271 { 0x98, 4, 3, 0 }, | |
| 272 { 0xa8, 4, 4, CYCLE_ADJ }, | |
| 273 { 0xb8, 5, 4, 0 }, | |
| 274 | |
| 275 { 0xc8, 2, 2, 0 }, // EORB | |
| 276 { 0xd8, 4, 3, 0 }, | |
| 277 { 0xe8, 4, 4, CYCLE_ADJ }, | |
| 278 { 0xf8, 5, 4, 0 }, | |
| 279 | |
| 280 { 0x1088, 5, 4, 0 }, // EORD | |
| 281 { 0x1098, 7, 5, 0 }, | |
| 282 { 0x10a8, 7, 6, CYCLE_ADJ }, | |
| 283 { 0x10b8, 8, 6, 0 }, | |
| 284 | |
| 285 { 0x1e, 8, 5, 0 }, // EXG | |
| 286 | |
| 287 { 0x4c, 2, 1, 0 }, // INCA | |
| 288 { 0x5c, 2, 1, 0 }, // INCB | |
| 289 { 0x104c, 3, 2, 0 }, // INCD | |
| 290 { 0x114c, 3, 2, 0 }, // INCE | |
| 291 { 0x115c, 3, 2, 0 }, // INCF | |
| 292 { 0x105c, 3, 2, 0 }, // INCW | |
| 293 | |
| 294 { 0x0c, 6, 5, 0 }, // INC | |
| 295 { 0x6c, 6, 6, CYCLE_ADJ }, | |
| 296 { 0x7c, 7, 6, 0 }, | |
| 297 | |
| 298 { 0x0e, 3, 2, 0 }, // JMP | |
| 299 { 0x6e, 3, 3, CYCLE_ADJ }, | |
| 300 { 0x7e, 4, 3, 0 }, | |
| 301 | |
| 302 { 0x9d, 7, 6, 0 }, // JSR | |
| 303 { 0xad, 7, 6, CYCLE_ADJ }, | |
| 304 { 0xbd, 8, 7, 0 }, | |
| 305 | |
| 306 { 0x16, 5, 4, 0 }, // LBRA | |
| 307 { 0x17, 9, 7, 0 }, // LBSR | |
|
408
0af33282b518
Fix cycle counting for relative branches.
William Astle <lost@l-w.ca>
parents:
405
diff
changeset
|
308 { 0x1021, 5, 5, 0 }, // LBRN |
|
0af33282b518
Fix cycle counting for relative branches.
William Astle <lost@l-w.ca>
parents:
405
diff
changeset
|
309 { 0x1022, 5, 5, 0 }, // remaining long branches are estimated on 6809 only: |
|
0af33282b518
Fix cycle counting for relative branches.
William Astle <lost@l-w.ca>
parents:
405
diff
changeset
|
310 { 0x1023, 5, 5, 0 }, // |
|
0af33282b518
Fix cycle counting for relative branches.
William Astle <lost@l-w.ca>
parents:
405
diff
changeset
|
311 { 0x1024, 5, 5, 0 }, // 6809: 5 cycles, +1 cycle if the branch is taken |
|
0af33282b518
Fix cycle counting for relative branches.
William Astle <lost@l-w.ca>
parents:
405
diff
changeset
|
312 { 0x1025, 5, 5, 0 }, // 6309 native: always 5 cycles |
|
0af33282b518
Fix cycle counting for relative branches.
William Astle <lost@l-w.ca>
parents:
405
diff
changeset
|
313 { 0x1026, 5, 5, 0 }, // |
|
0af33282b518
Fix cycle counting for relative branches.
William Astle <lost@l-w.ca>
parents:
405
diff
changeset
|
314 { 0x1027, 5, 5, 0 }, // this is handled as a special case elsewhere |
|
0af33282b518
Fix cycle counting for relative branches.
William Astle <lost@l-w.ca>
parents:
405
diff
changeset
|
315 { 0x1028, 5, 5, 0 }, |
|
0af33282b518
Fix cycle counting for relative branches.
William Astle <lost@l-w.ca>
parents:
405
diff
changeset
|
316 { 0x1029, 5, 5, 0 }, |
|
0af33282b518
Fix cycle counting for relative branches.
William Astle <lost@l-w.ca>
parents:
405
diff
changeset
|
317 { 0x102a, 5, 5, 0 }, |
|
0af33282b518
Fix cycle counting for relative branches.
William Astle <lost@l-w.ca>
parents:
405
diff
changeset
|
318 { 0x102b, 5, 5, 0 }, |
|
0af33282b518
Fix cycle counting for relative branches.
William Astle <lost@l-w.ca>
parents:
405
diff
changeset
|
319 { 0x102c, 5, 5, 0 }, |
|
0af33282b518
Fix cycle counting for relative branches.
William Astle <lost@l-w.ca>
parents:
405
diff
changeset
|
320 { 0x102d, 5, 5, 0 }, |
|
0af33282b518
Fix cycle counting for relative branches.
William Astle <lost@l-w.ca>
parents:
405
diff
changeset
|
321 { 0x102e, 5, 5, 0 }, |
|
0af33282b518
Fix cycle counting for relative branches.
William Astle <lost@l-w.ca>
parents:
405
diff
changeset
|
322 { 0x102f, 5, 5, 0 }, |
| 378 | 323 |
| 324 { 0x86, 2, 2, 0 }, // LDA | |
| 325 { 0x96, 4, 3, 0 }, | |
| 326 { 0xa6, 4, 4, CYCLE_ADJ }, | |
| 327 { 0xb6, 5, 4, 0 }, | |
| 328 | |
| 329 { 0xc6, 2, 2, 0 }, // LDB | |
| 330 { 0xd6, 4, 3 }, | |
| 331 { 0xe6, 4, 4, CYCLE_ADJ }, | |
| 332 { 0xf6, 5, 4, 0 }, | |
| 333 | |
| 334 { 0x1136, 7, 6, 0 }, // LDBT | |
| 335 | |
| 336 { 0xcc, 3, 3, 0 }, // LDD | |
| 337 { 0xdc, 5, 4, 0 }, | |
| 338 { 0xec, 5, 5, CYCLE_ADJ }, | |
| 339 { 0xfc, 6, 5, 0 }, | |
| 340 | |
| 341 { 0x1186, 3, 3, 0 }, // LDE | |
| 342 { 0x1196, 5, 4, 0 }, | |
| 343 { 0x11a6, 5, 5, CYCLE_ADJ }, | |
| 344 { 0x11b6, 6, 5, 0 }, | |
| 345 | |
| 346 { 0x11c6, 3, 3, 0 }, // LDF | |
| 347 { 0x11d6, 5, 4, 0 }, | |
| 348 { 0x11e6, 5, 5, CYCLE_ADJ }, | |
| 349 { 0x11f6, 6, 5, 0 }, | |
| 350 | |
| 351 { 0xcd, 5, 5, 0 }, // LDQ | |
| 352 { 0x10dc, 8, 7, 0 }, | |
| 353 { 0x10ec, 8, 8, CYCLE_ADJ }, | |
| 354 { 0x10fc, 9, 8, 0 }, | |
| 355 | |
| 356 { 0x10ce, 4, 4, 0 }, // LDS | |
| 357 { 0x10de, 6, 5, 0 }, | |
| 358 { 0x10ee, 6, 6, CYCLE_ADJ }, | |
| 359 { 0x10fe, 7, 6, 0 }, | |
| 360 | |
| 361 { 0xce, 3, 3, 0 }, // LDU | |
| 362 { 0xde, 5, 4, 0 }, | |
| 363 { 0xee, 5, 5, CYCLE_ADJ }, | |
| 364 { 0xfe, 6, 5, 0 }, | |
| 365 | |
| 366 { 0x1086, 4, 4, 0 }, // LDW | |
| 367 { 0x1096, 6, 5, 0 }, | |
| 368 { 0x10a6, 6, 6, CYCLE_ADJ }, | |
| 369 { 0x10b6, 7, 6, 0 }, | |
| 370 | |
| 371 { 0x8e, 3, 3, 0 }, // LDX | |
| 372 { 0x9e, 5, 4, 0 }, | |
| 373 { 0xae, 5, 5, CYCLE_ADJ }, | |
| 374 { 0xbe, 6, 5, 0 }, | |
| 375 | |
| 376 { 0x108e, 4, 4, 0 }, // LDY | |
| 377 { 0x109e, 6, 5, 0 }, | |
| 378 { 0x10ae, 6, 6, CYCLE_ADJ }, | |
| 379 { 0x10be, 7, 6, 0 }, | |
| 380 | |
| 381 { 0x113d, 5, 5, 0 }, // LDMD | |
| 382 | |
| 383 { 0x30, 4, 4, CYCLE_ADJ }, // LEA | |
| 384 { 0x31, 4, 4, CYCLE_ADJ }, | |
| 385 { 0x32, 4, 4, CYCLE_ADJ }, | |
| 386 { 0x33, 4, 4, CYCLE_ADJ }, | |
| 387 | |
| 388 { 0x44, 2, 1, 0 }, // LSRA | |
| 389 { 0x54, 2, 1, 0 }, // LSRB | |
| 390 { 0x1044, 3, 2, 0 }, // LSRD | |
| 391 { 0x1054, 3, 2, 0 }, // LSRW | |
| 392 | |
| 393 { 0x04, 6, 5, 0 }, // LSR | |
| 394 { 0x64, 6, 6, CYCLE_ADJ }, | |
| 395 { 0x74, 7, 6, 0 }, | |
| 396 | |
| 397 { 0x3d, 11, 10, 0 }, // MUL | |
| 398 | |
| 399 { 0x118f, 28, 28, 0 }, // MULD | |
| 400 { 0x119f, 30, 29, 0 }, | |
| 401 { 0x11af, 30, 30, CYCLE_ADJ }, | |
| 402 { 0x11bf, 31, 30, 0 }, | |
| 403 | |
| 404 { 0x40, 2, 1, 0 }, // NEGA | |
| 405 { 0x50, 2, 1, 0 }, // NEGB | |
| 406 { 0x1040, 3, 2, 0 }, // NEGD | |
| 407 | |
| 408 { 0x00, 6, 5, 0 }, // NEG | |
| 409 { 0x60, 6, 6, CYCLE_ADJ }, | |
| 410 { 0x70, 7, 6, 0 }, | |
| 411 | |
| 412 { 0x12, 2, 1, 0 }, // NOP | |
| 413 | |
| 414 { 0x01, 6, 6, 0 }, // OIM | |
| 415 { 0x61, 7, 7, CYCLE_ADJ }, | |
| 416 { 0x71, 7, 7, 0 }, | |
| 417 | |
| 418 { 0x8a, 2, 2, 0 }, // ORA | |
| 419 { 0x9a, 4, 3, 0 }, | |
| 420 { 0xaa, 4, 4, CYCLE_ADJ }, | |
| 421 { 0xba, 5, 4, 0 }, | |
| 422 | |
| 423 { 0xca, 2, 2, 0 }, // ORB | |
| 424 { 0xda, 4, 3, 0 }, | |
| 425 { 0xea, 4, 4, CYCLE_ADJ }, | |
| 426 { 0xfa, 5, 4, 0 }, | |
| 427 | |
| 428 { 0x1a, 3, 2, 0 }, // ORCC | |
| 429 | |
| 430 { 0x108a, 5, 4, 0 }, // ORD | |
| 431 { 0x109a, 7, 5, 0 }, | |
| 432 { 0x10aa, 7, 6, CYCLE_ADJ }, | |
| 433 { 0x10ba, 8, 6, 0 }, | |
| 434 | |
| 435 { 0x34, 5, 4, CYCLE_ADJ }, // PSHS | |
| 436 { 0x36, 5, 4, CYCLE_ADJ }, // PSHU | |
| 437 { 0x35, 5, 4, CYCLE_ADJ }, // PULS | |
| 438 { 0x37, 5, 4, CYCLE_ADJ }, // PULU | |
| 439 { 0x1038, 6, 6, 0 }, // PSHSW | |
| 440 { 0x103a, 6, 6, 0 }, // PSHUW | |
| 441 { 0x1039, 6, 6, 0 }, // PULSW | |
| 442 { 0x103b, 6, 6, 0 }, // PULUW | |
| 443 | |
| 444 { 0x49, 2, 1, 0 }, // ROLA | |
| 445 { 0x59, 2, 1, 0 }, // ROLB | |
| 446 { 0x1049, 3, 2, 0 }, // ROLD | |
| 447 { 0x1059, 3, 2, 0 }, // ROLW | |
| 448 | |
| 449 { 0x09, 6, 5, 0 }, // ROL | |
| 450 { 0x69, 6, 6, CYCLE_ADJ }, | |
| 451 { 0x79, 7, 6, 0 }, | |
| 452 | |
| 453 { 0x46, 2, 1, 0 }, // RORA | |
| 454 { 0x56, 2, 1, 0 }, // RORB | |
| 455 { 0x1046, 3, 2, 0 }, // RORD | |
| 456 { 0x1056, 3, 2, 0 }, // RORW | |
| 457 | |
| 458 { 0x06, 6, 5, 0 }, // ROR | |
| 459 { 0x66, 6, 6, CYCLE_ADJ }, | |
| 460 { 0x76, 7, 6, 0 }, | |
| 461 | |
| 462 { 0x3b, 6, 17, CYCLE_ESTIMATED }, // RTI | |
| 463 | |
| 464 { 0x39, 5, 4, 0 }, // RTS | |
| 465 | |
| 466 { 0x82, 2, 2, 0 }, // SBCA | |
| 467 { 0x92, 4, 3, 0 }, | |
| 468 { 0xa2, 4, 4, CYCLE_ADJ }, | |
| 469 { 0xb2, 5, 4, 0 }, | |
| 470 | |
| 471 { 0xc2, 2, 2, 0 }, // SBCB | |
| 472 { 0xd2, 4, 3, 0 }, | |
| 473 { 0xe2, 4, 4, CYCLE_ADJ }, | |
| 474 { 0xf2, 5, 4, 0 }, | |
| 475 | |
| 476 { 0x1082, 5, 4, 0 }, // SBCD | |
| 477 { 0x1092, 7, 5, 0 }, | |
| 478 { 0x10a2, 7, 6, CYCLE_ADJ }, | |
| 479 { 0x10b2, 8, 6, 0 }, | |
| 480 | |
| 481 { 0x1d, 2, 1, 0 }, // SEX | |
| 482 { 0x14, 4, 4, 0 }, // SEXW | |
| 483 | |
| 484 { 0x97, 4, 3, 0 }, // STA | |
| 485 { 0xa7, 4, 4, CYCLE_ADJ }, | |
| 486 { 0xb7, 5, 4, 0 }, | |
| 487 | |
| 488 { 0xd7, 4, 3, 0 }, // STB | |
| 489 { 0xe7, 4, 4, CYCLE_ADJ }, | |
| 490 { 0xf7, 5, 4, 0 }, | |
| 491 | |
| 492 { 0x1137, 8, 7, 0 }, // STBT | |
| 493 | |
| 494 { 0xdd, 5, 4, 0 }, // STD | |
| 495 { 0xed, 5, 5, CYCLE_ADJ }, | |
| 496 { 0xfd, 6, 5, 0 }, | |
| 497 | |
| 498 { 0x1197, 5, 4, 0 }, // STE | |
| 499 { 0x11a7, 5, 5, CYCLE_ADJ }, | |
| 500 { 0x11b7, 6, 5, 0 }, | |
| 501 | |
| 502 { 0x11d7, 5, 4, 0 }, // STF | |
| 503 { 0x11e7, 5, 5, CYCLE_ADJ }, | |
| 504 { 0x11f7, 6, 5, 0 }, | |
| 505 | |
| 506 { 0x10dd, 8, 7, 0 }, // STQ | |
| 507 { 0x10ed, 8, 8, CYCLE_ADJ }, | |
| 508 { 0x10fd, 9, 8, 0 }, | |
| 509 | |
| 510 { 0x10df, 6, 5, 0 }, // STS | |
| 511 { 0x10ef, 6, 6, CYCLE_ADJ }, | |
| 512 { 0x10ff, 7, 6, 0 }, | |
| 513 | |
| 514 { 0xdf, 5, 4, 0 }, // STU | |
| 515 { 0xef, 5, 5, CYCLE_ADJ }, | |
| 516 { 0xff, 6, 5, 0 }, | |
| 517 | |
| 518 { 0x1097, 6, 5, 0 }, // STW | |
| 519 { 0x10a7, 6, 6, CYCLE_ADJ }, | |
| 520 { 0x10b7, 7, 6, 0 }, | |
| 521 | |
| 522 { 0x9f, 5, 4, 0 }, // STX | |
| 523 { 0xaf, 5, 5, CYCLE_ADJ }, | |
| 524 { 0xbf, 6, 5, 0 }, | |
| 525 | |
| 526 { 0x109f, 6, 5, 0 }, // STY | |
| 527 { 0x10af, 6, 6, CYCLE_ADJ }, | |
| 528 { 0x10bf, 7, 6, 0 }, | |
| 529 | |
| 530 { 0x80, 2, 2, 0 }, // SUBA | |
| 531 { 0x90, 4, 3, 0 }, | |
| 532 { 0xa0, 4, 4, CYCLE_ADJ }, | |
| 533 { 0xb0, 5, 4, 0 }, | |
| 534 | |
| 535 { 0xc0, 2, 2, 0 }, // SUBB | |
| 536 { 0xd0, 4, 3, 0 }, | |
| 537 { 0xe0, 4, 4, CYCLE_ADJ }, | |
| 538 { 0xf0, 5, 4, 0 }, | |
| 539 | |
| 540 { 0x83, 4, 3, 0 }, // SUBD | |
| 541 { 0x93, 6, 4, 0 }, | |
| 542 { 0xa3, 6, 5, CYCLE_ADJ }, | |
| 543 { 0xb3, 7, 5, 0 }, | |
| 544 | |
| 545 { 0x1180, 3, 3, 0 }, // SUBE | |
| 546 { 0x1190, 5, 4, 0 }, | |
| 547 { 0x11a0, 5, 5, CYCLE_ADJ }, | |
| 548 { 0x11b0, 6, 5, 0 }, | |
| 549 | |
| 550 { 0x11c0, 3, 3, 0 }, // SUBF | |
| 551 { 0x11d0, 5, 4, 0 }, | |
| 552 { 0x11e0, 5, 5, CYCLE_ADJ }, | |
| 553 { 0x11f0, 6, 5, 0 }, | |
| 554 | |
| 555 { 0x1080, 5, 4, 0 }, // SUBW | |
| 556 { 0x1090, 7, 5, 0 }, | |
| 557 { 0x10a0, 7, 6, CYCLE_ADJ }, | |
| 558 { 0x10b0, 8, 6, 0 }, | |
| 559 | |
| 560 { 0x3f, 19, 21, 0 }, // SWI | |
| 561 { 0x103f, 20, 22, 0 }, // SWI2 | |
| 562 { 0x113f, 20, 22, 0 }, // SWI3 | |
| 563 | |
| 564 { 0x13, 2, 1, CYCLE_ESTIMATED }, // SYNC | |
| 565 | |
| 566 { 0x1f, 6, 4, 0 }, // TFR | |
| 567 | |
| 486 | 568 { 0x0b, 6, 6, 0 }, // TIM |
| 569 { 0x6b, 7, 7, CYCLE_ADJ }, | |
| 570 { 0x7b, 7, 7, 0 }, | |
| 378 | 571 |
| 572 { 0x1138, 6, 6, CYCLE_ESTIMATED }, // TFM | |
| 573 { 0x1139, 6, 6, CYCLE_ESTIMATED }, | |
| 574 { 0x113a, 6, 6, CYCLE_ESTIMATED }, | |
| 575 { 0x113b, 6, 6, CYCLE_ESTIMATED }, | |
| 576 | |
| 577 { 0x4d, 2, 1, 0 }, // TSTA | |
| 578 { 0x5d, 2, 1, 0 }, // TSTB | |
| 579 { 0x104d, 3, 2, 0 }, // TSTD | |
| 580 { 0x114d, 3, 2, 0 }, // TSTE | |
| 581 { 0x115d, 3, 2, 0 }, // TSTF | |
| 582 { 0x105d, 3, 2, 0 }, // TSTW | |
| 583 | |
| 584 { 0x0d, 6, 4, 0 }, // TST | |
| 585 { 0x6d, 6, 5, CYCLE_ADJ }, | |
| 586 { 0x7d, 7, 5, 0 }, | |
| 587 | |
| 588 { -1, -1 } | |
| 589 }; | |
| 590 | |
| 591 typedef struct | |
| 592 { | |
| 593 int cycles_6809_indexed; | |
| 594 int cycles_6309_indexed; | |
| 595 int cycles_6809_indirect; | |
| 596 int cycles_6309_indirect; | |
| 597 } indtab_t; | |
| 598 | |
| 599 static indtab_t indtab[] = | |
| 600 { | |
| 601 { 2, 1, -1, -1, }, // 0000 ,R+ | |
| 602 { 3, 2, 6, 6, }, // 0001 ,R++ [,R++] | |
| 603 { 2, 1, -1, -1, }, // 0010 ,-R | |
| 604 { 3, 2, 6, 6, }, // 0011 ,--R [,--R] | |
| 605 { 0, 0, 3, 3, }, // 0100 ,R [,R] | |
| 606 { 1, 1, 4, 4, }, // 0101 B,R [B,R] | |
| 607 { 1, 1, 4, 4, }, // 0110 A,R [A,R] | |
| 608 { 1, 1, 1, 1, }, // 0111 E,R [E,R] | |
| 609 { 1, 1, 4, 4, }, // 1000 n,R [n,R] | |
| 610 { 4, 3, 7, 7, }, // 1001 n,R [n,R] (16 bit) | |
| 611 { 1, 1, 1, 1, }, // 1010 F,R [F,R] | |
| 612 { 4, 2, 4, 4, }, // 1011 D,R [D,R] | |
| 613 { 1, 1, 4, 4, }, // 1100 n,PC [n,PC] | |
| 614 { 5, 3, 8, 8, }, // 1101 n,PC [n,PC] (16 bit) | |
| 615 { 4, 1, 4, 4, }, // 1110 W,R [W,R] | |
| 616 { -1, -1, 5, 5, }, // 1111 [n] (16 bit) | |
| 617 }; | |
| 618 | |
| 619 /* calculates additional ticks from post byte in both indexed and indirect modes */ | |
| 620 int lwasm_cycle_calc_ind(line_t *cl) | |
| 621 { | |
| 622 int pb = cl->pb; | |
| 623 | |
| 624 if ((pb & 0x80) == 0) /* 5 bit offset */ | |
| 625 return 1; | |
| 626 | |
|
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627 // These need special handling because the *register* bits determine the specific operation (and, thus, cycle counts) |
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628 if (!CURPRAGMA(cl, PRAGMA_6809)) |
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629 { |
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630 switch (pb) |
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631 { |
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632 case 0x8f: // ,W |
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633 return 0; |
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634 case 0xaf: // n,W (16 bit) |
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635 return 2; |
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636 case 0xcf: // ,W++ |
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637 case 0xef: // ,--W |
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638 return 1; |
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639 case 0x90: // [,W] |
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640 return 3; |
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641 case 0xb0: // [n,W] (16 bit) |
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642 return 5; |
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643 case 0xd0: // [,W++] |
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644 case 0xf0: // [,--W] |
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645 return 4; |
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646 } |
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647 } |
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648 |
| 378 | 649 if (pb & 0x10) /* indirect */ |
| 650 return CURPRAGMA(cl, PRAGMA_6809) ? indtab[pb & 0xf].cycles_6809_indirect : indtab[pb & 0xf].cycles_6309_indirect; | |
| 651 else | |
| 652 return CURPRAGMA(cl, PRAGMA_6809) ? indtab[pb & 0xf].cycles_6809_indexed : indtab[pb & 0xf].cycles_6309_indexed; | |
| 653 } | |
| 654 | |
| 655 /* calculate additional ticks from post byte in rlist (PSHS A,B,X...) */ | |
| 656 int lwasm_cycle_calc_rlist(line_t *cl) | |
| 657 { | |
| 658 int i, cycles = 0; | |
| 659 | |
| 660 for (i = 0; i < 8; i++) | |
| 661 { | |
| 662 // 1 cycle for 8 bit regs CC-DP (bits 0-3) | |
| 663 // otherwise 2 | |
| 664 if (cl->pb & 1 << i) | |
| 665 cycles += (i <= 3) ? 1 : 2; | |
| 666 } | |
| 667 | |
| 668 return cycles; | |
| 669 } | |
| 670 | |
| 671 void lwasm_cycle_update_count(line_t *cl, int opc) | |
| 672 { | |
| 673 int i; | |
| 674 for (i = 0; 1; i++) | |
| 675 { | |
| 676 if (cycletable[i].opc == -1) return; | |
| 677 | |
| 678 if (cycletable[i].opc == opc) | |
| 679 { | |
| 680 cl->cycle_base = CURPRAGMA(cl, PRAGMA_6809) ? cycletable[i].cycles_6809 : cycletable[i].cycles_6309; | |
| 681 cl->cycle_flags = cycletable[i].flags; | |
| 682 cl->cycle_adj = 0; | |
| 683 | |
| 684 // long branches are estimated on 6809 | |
|
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685 if (CURPRAGMA(cl, PRAGMA_6809) && (opc >= 0x1022 && opc <= 0x102f)) |
| 378 | 686 cl->cycle_flags |= CYCLE_ESTIMATED; |
| 687 | |
| 688 return; | |
| 689 } | |
| 690 } | |
| 691 } |