1 /* libs/pixelflinger/codeflinger/ARMAssemblerInterface.h 2 ** 3 ** Copyright 2006, The Android Open Source Project 4 ** 5 ** Licensed under the Apache License, Version 2.0 (the "License"); 6 ** you may not use this file except in compliance with the License. 7 ** You may obtain a copy of the License at 8 ** 9 ** http://www.apache.org/licenses/LICENSE-2.0 10 ** 11 ** Unless required by applicable law or agreed to in writing, software 12 ** distributed under the License is distributed on an "AS IS" BASIS, 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 ** See the License for the specific language governing permissions and 15 ** limitations under the License. 16 */ 17 18 19 #ifndef ANDROID_ARMASSEMBLER_INTERFACE_H 20 #define ANDROID_ARMASSEMBLER_INTERFACE_H 21 22 #include <stdint.h> 23 #include <sys/types.h> 24 25 namespace android { 26 27 // ---------------------------------------------------------------------------- 28 29 class ARMAssemblerInterface 30 { 31 public: 32 virtual ~ARMAssemblerInterface(); 33 34 enum { 35 EQ, NE, CS, CC, MI, PL, VS, VC, HI, LS, GE, LT, GT, LE, AL, NV, 36 HS = CS, 37 LO = CC 38 }; 39 enum { 40 S = 1 41 }; 42 enum { 43 LSL, LSR, ASR, ROR 44 }; 45 enum { 46 ED, FD, EA, FA, 47 IB, IA, DB, DA 48 }; 49 enum { 50 R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, 51 SP = R13, 52 LR = R14, 53 PC = R15 54 }; 55 enum { 56 #define LIST(rr) L##rr=1<<rr 57 LIST(R0), LIST(R1), LIST(R2), LIST(R3), LIST(R4), LIST(R5), LIST(R6), 58 LIST(R7), LIST(R8), LIST(R9), LIST(R10), LIST(R11), LIST(R12), 59 LIST(R13), LIST(R14), LIST(R15), 60 LIST(SP), LIST(LR), LIST(PC), 61 #undef LIST 62 LSAVED = LR4|LR5|LR6|LR7|LR8|LR9|LR10|LR11 | LLR 63 }; 64 65 // ----------------------------------------------------------------------- 66 // shifters and addressing modes 67 // ----------------------------------------------------------------------- 68 69 // shifters... 70 static bool isValidImmediate(uint32_t immed); 71 static int buildImmediate(uint32_t i, uint32_t& rot, uint32_t& imm); 72 73 static uint32_t imm(uint32_t immediate); 74 static uint32_t reg_imm(int Rm, int type, uint32_t shift); 75 static uint32_t reg_rrx(int Rm); 76 static uint32_t reg_reg(int Rm, int type, int Rs); 77 78 // addressing modes... 79 // LDR(B)/STR(B)/PLD 80 // (immediate and Rm can be negative, which indicates U=0) 81 static uint32_t immed12_pre(int32_t immed12, int W=0); 82 static uint32_t immed12_post(int32_t immed12); 83 static uint32_t reg_scale_pre(int Rm, int type=0, uint32_t shift=0, int W=0); 84 static uint32_t reg_scale_post(int Rm, int type=0, uint32_t shift=0); 85 86 // LDRH/LDRSB/LDRSH/STRH 87 // (immediate and Rm can be negative, which indicates U=0) 88 static uint32_t immed8_pre(int32_t immed8, int W=0); 89 static uint32_t immed8_post(int32_t immed8); 90 static uint32_t reg_pre(int Rm, int W=0); 91 static uint32_t reg_post(int Rm); 92 93 // ----------------------------------------------------------------------- 94 // basic instructions & code generation 95 // ----------------------------------------------------------------------- 96 97 // generate the code 98 virtual void reset() = 0; 99 virtual int generate(const char* name) = 0; 100 virtual void disassemble(const char* name) = 0; 101 102 // construct prolog and epilog 103 virtual void prolog() = 0; 104 virtual void epilog(uint32_t touched) = 0; 105 virtual void comment(const char* string) = 0; 106 107 // data processing... 108 enum { 109 opAND, opEOR, opSUB, opRSB, opADD, opADC, opSBC, opRSC, 110 opTST, opTEQ, opCMP, opCMN, opORR, opMOV, opBIC, opMVN 111 }; 112 113 virtual void 114 dataProcessing( int opcode, int cc, int s, 115 int Rd, int Rn, 116 uint32_t Op2) = 0; 117 118 // multiply... 119 virtual void MLA(int cc, int s, 120 int Rd, int Rm, int Rs, int Rn) = 0; 121 virtual void MUL(int cc, int s, 122 int Rd, int Rm, int Rs) = 0; 123 virtual void UMULL(int cc, int s, 124 int RdLo, int RdHi, int Rm, int Rs) = 0; 125 virtual void UMUAL(int cc, int s, 126 int RdLo, int RdHi, int Rm, int Rs) = 0; 127 virtual void SMULL(int cc, int s, 128 int RdLo, int RdHi, int Rm, int Rs) = 0; 129 virtual void SMUAL(int cc, int s, 130 int RdLo, int RdHi, int Rm, int Rs) = 0; 131 132 // branches... 133 virtual void B(int cc, uint32_t* pc) = 0; 134 virtual void BL(int cc, uint32_t* pc) = 0; 135 virtual void BX(int cc, int Rn) = 0; 136 137 virtual void label(const char* theLabel) = 0; 138 virtual void B(int cc, const char* label) = 0; 139 virtual void BL(int cc, const char* label) = 0; 140 141 // valid only after generate() has been called 142 virtual uint32_t* pcForLabel(const char* label) = 0; 143 144 // data transfer... 145 virtual void LDR (int cc, int Rd, 146 int Rn, uint32_t offset = immed12_pre(0)) = 0; 147 virtual void LDRB(int cc, int Rd, 148 int Rn, uint32_t offset = immed12_pre(0)) = 0; 149 virtual void STR (int cc, int Rd, 150 int Rn, uint32_t offset = immed12_pre(0)) = 0; 151 virtual void STRB(int cc, int Rd, 152 int Rn, uint32_t offset = immed12_pre(0)) = 0; 153 154 virtual void LDRH (int cc, int Rd, 155 int Rn, uint32_t offset = immed8_pre(0)) = 0; 156 virtual void LDRSB(int cc, int Rd, 157 int Rn, uint32_t offset = immed8_pre(0)) = 0; 158 virtual void LDRSH(int cc, int Rd, 159 int Rn, uint32_t offset = immed8_pre(0)) = 0; 160 virtual void STRH (int cc, int Rd, 161 int Rn, uint32_t offset = immed8_pre(0)) = 0; 162 163 // block data transfer... 164 virtual void LDM(int cc, int dir, 165 int Rn, int W, uint32_t reg_list) = 0; 166 virtual void STM(int cc, int dir, 167 int Rn, int W, uint32_t reg_list) = 0; 168 169 // special... 170 virtual void SWP(int cc, int Rn, int Rd, int Rm) = 0; 171 virtual void SWPB(int cc, int Rn, int Rd, int Rm) = 0; 172 virtual void SWI(int cc, uint32_t comment) = 0; 173 174 // DSP instructions... 175 enum { 176 // B=0, T=1 177 // yx 178 xyBB = 0, // 0000, 179 xyTB = 2, // 0010, 180 xyBT = 4, // 0100, 181 xyTT = 6, // 0110, 182 yB = 0, // 0000, 183 yT = 4, // 0100 184 }; 185 186 virtual void PLD(int Rn, uint32_t offset) = 0; 187 188 virtual void CLZ(int cc, int Rd, int Rm) = 0; 189 190 virtual void QADD(int cc, int Rd, int Rm, int Rn) = 0; 191 virtual void QDADD(int cc, int Rd, int Rm, int Rn) = 0; 192 virtual void QSUB(int cc, int Rd, int Rm, int Rn) = 0; 193 virtual void QDSUB(int cc, int Rd, int Rm, int Rn) = 0; 194 195 virtual void SMUL(int cc, int xy, 196 int Rd, int Rm, int Rs) = 0; 197 virtual void SMULW(int cc, int y, 198 int Rd, int Rm, int Rs) = 0; 199 virtual void SMLA(int cc, int xy, 200 int Rd, int Rm, int Rs, int Rn) = 0; 201 virtual void SMLAL(int cc, int xy, 202 int RdHi, int RdLo, int Rs, int Rm) = 0; 203 virtual void SMLAW(int cc, int y, 204 int Rd, int Rm, int Rs, int Rn) = 0; 205 206 // byte/half word extract... 207 virtual void UXTB16(int cc, int Rd, int Rm, int rotate) = 0; 208 209 // bit manipulation... 210 virtual void UBFX(int cc, int Rd, int Rn, int lsb, int width) = 0; 211 212 // ----------------------------------------------------------------------- 213 // convenience... 214 // ----------------------------------------------------------------------- 215 inline void 216 ADC(int cc, int s, int Rd, int Rn, uint32_t Op2) { 217 dataProcessing(opADC, cc, s, Rd, Rn, Op2); 218 } 219 inline void 220 ADD(int cc, int s, int Rd, int Rn, uint32_t Op2) { 221 dataProcessing(opADD, cc, s, Rd, Rn, Op2); 222 } 223 inline void 224 AND(int cc, int s, int Rd, int Rn, uint32_t Op2) { 225 dataProcessing(opAND, cc, s, Rd, Rn, Op2); 226 } 227 inline void 228 BIC(int cc, int s, int Rd, int Rn, uint32_t Op2) { 229 dataProcessing(opBIC, cc, s, Rd, Rn, Op2); 230 } 231 inline void 232 EOR(int cc, int s, int Rd, int Rn, uint32_t Op2) { 233 dataProcessing(opEOR, cc, s, Rd, Rn, Op2); 234 } 235 inline void 236 MOV(int cc, int s, int Rd, uint32_t Op2) { 237 dataProcessing(opMOV, cc, s, Rd, 0, Op2); 238 } 239 inline void 240 MVN(int cc, int s, int Rd, uint32_t Op2) { 241 dataProcessing(opMVN, cc, s, Rd, 0, Op2); 242 } 243 inline void 244 ORR(int cc, int s, int Rd, int Rn, uint32_t Op2) { 245 dataProcessing(opORR, cc, s, Rd, Rn, Op2); 246 } 247 inline void 248 RSB(int cc, int s, int Rd, int Rn, uint32_t Op2) { 249 dataProcessing(opRSB, cc, s, Rd, Rn, Op2); 250 } 251 inline void 252 RSC(int cc, int s, int Rd, int Rn, uint32_t Op2) { 253 dataProcessing(opRSC, cc, s, Rd, Rn, Op2); 254 } 255 inline void 256 SBC(int cc, int s, int Rd, int Rn, uint32_t Op2) { 257 dataProcessing(opSBC, cc, s, Rd, Rn, Op2); 258 } 259 inline void 260 SUB(int cc, int s, int Rd, int Rn, uint32_t Op2) { 261 dataProcessing(opSUB, cc, s, Rd, Rn, Op2); 262 } 263 inline void 264 TEQ(int cc, int Rn, uint32_t Op2) { 265 dataProcessing(opTEQ, cc, 1, 0, Rn, Op2); 266 } 267 inline void 268 TST(int cc, int Rn, uint32_t Op2) { 269 dataProcessing(opTST, cc, 1, 0, Rn, Op2); 270 } 271 inline void 272 CMP(int cc, int Rn, uint32_t Op2) { 273 dataProcessing(opCMP, cc, 1, 0, Rn, Op2); 274 } 275 inline void 276 CMN(int cc, int Rn, uint32_t Op2) { 277 dataProcessing(opCMN, cc, 1, 0, Rn, Op2); 278 } 279 280 inline void SMULBB(int cc, int Rd, int Rm, int Rs) { 281 SMUL(cc, xyBB, Rd, Rm, Rs); } 282 inline void SMULTB(int cc, int Rd, int Rm, int Rs) { 283 SMUL(cc, xyTB, Rd, Rm, Rs); } 284 inline void SMULBT(int cc, int Rd, int Rm, int Rs) { 285 SMUL(cc, xyBT, Rd, Rm, Rs); } 286 inline void SMULTT(int cc, int Rd, int Rm, int Rs) { 287 SMUL(cc, xyTT, Rd, Rm, Rs); } 288 289 inline void SMULWB(int cc, int Rd, int Rm, int Rs) { 290 SMULW(cc, yB, Rd, Rm, Rs); } 291 inline void SMULWT(int cc, int Rd, int Rm, int Rs) { 292 SMULW(cc, yT, Rd, Rm, Rs); } 293 294 inline void 295 SMLABB(int cc, int Rd, int Rm, int Rs, int Rn) { 296 SMLA(cc, xyBB, Rd, Rm, Rs, Rn); } 297 inline void 298 SMLATB(int cc, int Rd, int Rm, int Rs, int Rn) { 299 SMLA(cc, xyTB, Rd, Rm, Rs, Rn); } 300 inline void 301 SMLABT(int cc, int Rd, int Rm, int Rs, int Rn) { 302 SMLA(cc, xyBT, Rd, Rm, Rs, Rn); } 303 inline void 304 SMLATT(int cc, int Rd, int Rm, int Rs, int Rn) { 305 SMLA(cc, xyTT, Rd, Rm, Rs, Rn); } 306 307 inline void 308 SMLALBB(int cc, int RdHi, int RdLo, int Rs, int Rm) { 309 SMLAL(cc, xyBB, RdHi, RdLo, Rs, Rm); } 310 inline void 311 SMLALTB(int cc, int RdHi, int RdLo, int Rs, int Rm) { 312 SMLAL(cc, xyTB, RdHi, RdLo, Rs, Rm); } 313 inline void 314 SMLALBT(int cc, int RdHi, int RdLo, int Rs, int Rm) { 315 SMLAL(cc, xyBT, RdHi, RdLo, Rs, Rm); } 316 inline void 317 SMLALTT(int cc, int RdHi, int RdLo, int Rs, int Rm) { 318 SMLAL(cc, xyTT, RdHi, RdLo, Rs, Rm); } 319 320 inline void 321 SMLAWB(int cc, int Rd, int Rm, int Rs, int Rn) { 322 SMLAW(cc, yB, Rd, Rm, Rs, Rn); } 323 inline void 324 SMLAWT(int cc, int Rd, int Rm, int Rs, int Rn) { 325 SMLAW(cc, yT, Rd, Rm, Rs, Rn); } 326 }; 327 328 }; // namespace android 329 330 #endif //ANDROID_ARMASSEMBLER_INTERFACE_H 331
