1 #include "../common/asm-constants.h" 2 #include "../common/mips-defines.h" 3 #include <asm/regdef.h> 4 #include <asm/fpregdef.h> 5 6 #ifdef __mips_hard_float 7 #define HARD_FLOAT 8 #else 9 #define SOFT_FLOAT 10 #endif 11 12 #if (__mips==32) && (__mips_isa_rev>=2) 13 #define MIPS32R2 14 #endif 15 16 /* MIPS definitions and declarations 17 18 reg nick purpose 19 s0 rPC interpreted program counter, used for fetching instructions 20 s1 rFP interpreted frame pointer, used for accessing locals and args 21 s2 rSELF self (Thread) pointer 22 s3 rIBASE interpreted instruction base pointer, used for computed goto 23 s4 rINST first 16-bit code unit of current instruction 24 */ 25 26 27 /* single-purpose registers, given names for clarity */ 28 #define rPC s0 29 #define rFP s1 30 #define rSELF s2 31 #define rIBASE s3 32 #define rINST s4 33 #define rOBJ s5 34 #define rBIX s6 35 #define rTEMP s7 36 37 /* The long arguments sent to function calls in Big-endian mode should be register 38 swapped when sent to functions in little endian mode. In other words long variable 39 sent as a0(MSW), a1(LSW) for a function call in LE mode should be sent as a1, a0 in 40 Big Endian mode */ 41 42 #ifdef HAVE_LITTLE_ENDIAN 43 #define rARG0 a0 44 #define rARG1 a1 45 #define rARG2 a2 46 #define rARG3 a3 47 #define rRESULT0 v0 48 #define rRESULT1 v1 49 #else 50 #define rARG0 a1 51 #define rARG1 a0 52 #define rARG2 a3 53 #define rARG3 a2 54 #define rRESULT0 v1 55 #define rRESULT1 v0 56 #endif 57 58 59 /* save/restore the PC and/or FP from the glue struct */ 60 #define LOAD_PC_FROM_SELF() lw rPC, offThread_pc(rSELF) 61 #define SAVE_PC_TO_SELF() sw rPC, offThread_pc(rSELF) 62 #define LOAD_FP_FROM_SELF() lw rFP, offThread_curFrame(rSELF) 63 #define SAVE_FP_TO_SELF() sw rFP, offThread_curFrame(rSELF) 64 #define LOAD_PC_FP_FROM_SELF() \ 65 LOAD_PC_FROM_SELF(); \ 66 LOAD_FP_FROM_SELF() 67 #define SAVE_PC_FP_TO_SELF() \ 68 SAVE_PC_TO_SELF(); \ 69 SAVE_FP_TO_SELF() 70 71 #define EXPORT_PC() \ 72 sw rPC, (offStackSaveArea_currentPc - sizeofStackSaveArea)(rFP) 73 74 #define SAVEAREA_FROM_FP(rd, _fpreg) \ 75 subu rd, _fpreg, sizeofStackSaveArea 76 77 #define FETCH_INST() lhu rINST, (rPC) 78 79 #define FETCH_ADVANCE_INST(_count) lhu rINST, ((_count)*2)(rPC); \ 80 addu rPC, rPC, ((_count) * 2) 81 82 #define PREFETCH_ADVANCE_INST(_dreg, _sreg, _count) \ 83 lhu _dreg, ((_count)*2)(_sreg) ; \ 84 addu _sreg, _sreg, (_count)*2 85 86 #define FETCH_ADVANCE_INST_RB(rd) addu rPC, rPC, rd; \ 87 lhu rINST, (rPC) 88 89 #define FETCH(rd, _count) lhu rd, ((_count) * 2)(rPC) 90 #define FETCH_S(rd, _count) lh rd, ((_count) * 2)(rPC) 91 92 #ifdef HAVE_LITTLE_ENDIAN 93 94 #define FETCH_B(rd, _count) lbu rd, ((_count) * 2)(rPC) 95 #define FETCH_C(rd, _count) lbu rd, ((_count) * 2 + 1)(rPC) 96 97 #else 98 99 #define FETCH_B(rd, _count) lbu rd, ((_count) * 2 + 1)(rPC) 100 #define FETCH_C(rd, _count) lbu rd, ((_count) * 2)(rPC) 101 102 #endif 103 104 #define GET_INST_OPCODE(rd) and rd, rINST, 0xFF 105 106 /* 107 * Put the prefetched instruction's opcode field into the specified register. 108 */ 109 110 #define GET_PREFETCHED_OPCODE(dreg, sreg) andi dreg, sreg, 255 111 112 #define GOTO_OPCODE(rd) sll rd, rd, ${handler_size_bits}; \ 113 addu rd, rIBASE, rd; \ 114 jr rd 115 116 #define GOTO_OPCODE_BASE(_base, rd) sll rd, rd, ${handler_size_bits}; \ 117 addu rd, _base, rd; \ 118 jr rd 119 120 #define GET_VREG(rd, rix) LOAD_eas2(rd, rFP, rix) 121 122 #define GET_VREG_F(rd, rix) EAS2(AT, rFP, rix); \ 123 .set noat; l.s rd, (AT); .set at 124 125 #define SET_VREG(rd, rix) STORE_eas2(rd, rFP, rix) 126 127 #define SET_VREG_GOTO(rd, rix, dst) .set noreorder; \ 128 sll dst, dst, ${handler_size_bits}; \ 129 addu dst, rIBASE, dst; \ 130 sll t8, rix, 2; \ 131 addu t8, t8, rFP; \ 132 jr dst; \ 133 sw rd, 0(t8); \ 134 .set reorder 135 136 #define SET_VREG_F(rd, rix) EAS2(AT, rFP, rix); \ 137 .set noat; s.s rd, (AT); .set at 138 139 140 #define GET_OPA(rd) srl rd, rINST, 8 141 #ifndef MIPS32R2 142 #define GET_OPA4(rd) GET_OPA(rd); and rd, 0xf 143 #else 144 #define GET_OPA4(rd) ext rd, rINST, 8, 4 145 #endif 146 #define GET_OPB(rd) srl rd, rINST, 12 147 148 #define LOAD_rSELF_OFF(rd, off) lw rd, offThread_##off## (rSELF) 149 150 #define LOAD_rSELF_method(rd) LOAD_rSELF_OFF(rd, method) 151 #define LOAD_rSELF_methodClassDex(rd) LOAD_rSELF_OFF(rd, methodClassDex) 152 #define LOAD_rSELF_interpStackEnd(rd) LOAD_rSELF_OFF(rd, interpStackEnd) 153 #define LOAD_rSELF_retval(rd) LOAD_rSELF_OFF(rd, retval) 154 #define LOAD_rSELF_pActiveProfilers(rd) LOAD_rSELF_OFF(rd, pActiveProfilers) 155 #define LOAD_rSELF_bailPtr(rd) LOAD_rSELF_OFF(rd, bailPtr) 156 #define LOAD_rSELF_SelfSuspendCount(rd) LOAD_rSELF_OFF(rd, SelfSuspendCount) 157 158 159 /* 160 * Form an Effective Address rd = rbase + roff<<n; 161 * Uses reg AT 162 */ 163 #define EASN(rd, rbase, roff, rshift) .set noat; \ 164 sll AT, roff, rshift; \ 165 addu rd, rbase, AT; \ 166 .set at 167 168 #define EAS1(rd, rbase, roff) EASN(rd, rbase, roff, 1) 169 #define EAS2(rd, rbase, roff) EASN(rd, rbase, roff, 2) 170 #define EAS3(rd, rbase, roff) EASN(rd, rbase, roff, 3) 171 #define EAS4(rd, rbase, roff) EASN(rd, rbase, roff, 4) 172 173 /* 174 * Form an Effective Shift Right rd = rbase + roff>>n; 175 * Uses reg AT 176 */ 177 #define ESRN(rd, rbase, roff, rshift) .set noat; \ 178 srl AT, roff, rshift; \ 179 addu rd, rbase, AT; \ 180 .set at 181 182 #define LOAD_eas2(rd, rbase, roff) EAS2(AT, rbase, roff); \ 183 .set noat; lw rd, 0(AT); .set at 184 185 #define STORE_eas2(rd, rbase, roff) EAS2(AT, rbase, roff); \ 186 .set noat; sw rd, 0(AT); .set at 187 188 #define LOAD_RB_OFF(rd, rbase, off) lw rd, off(rbase) 189 #define LOADu2_RB_OFF(rd, rbase, off) lhu rd, off(rbase) 190 #define STORE_RB_OFF(rd, rbase, off) sw rd, off(rbase) 191 192 #ifdef HAVE_LITTLE_ENDIAN 193 194 #define STORE64_off(rlo, rhi, rbase, off) sw rlo, off(rbase); \ 195 sw rhi, (off+4)(rbase) 196 #define LOAD64_off(rlo, rhi, rbase, off) lw rlo, off(rbase); \ 197 lw rhi, (off+4)(rbase) 198 199 #define vSTORE64_off(rlo, rhi, rbase, off) sw rlo, off(rbase); \ 200 sw rhi, (off+4)(rbase) 201 #define vLOAD64_off(rlo, rhi, rbase, off) lw rlo, off(rbase); \ 202 lw rhi, (off+4)(rbase) 203 204 #define STORE64_off_F(rlo, rhi, rbase, off) s.s rlo, off(rbase); \ 205 s.s rhi, (off+4)(rbase) 206 #define LOAD64_off_F(rlo, rhi, rbase, off) l.s rlo, off(rbase); \ 207 l.s rhi, (off+4)(rbase) 208 #else 209 210 #define STORE64_off(rlo, rhi, rbase, off) sw rlo, (off+4)(rbase); \ 211 sw rhi, (off)(rbase) 212 #define LOAD64_off(rlo, rhi, rbase, off) lw rlo, (off+4)(rbase); \ 213 lw rhi, (off)(rbase) 214 #define vSTORE64_off(rlo, rhi, rbase, off) sw rlo, (off+4)(rbase); \ 215 sw rhi, (off)(rbase) 216 #define vLOAD64_off(rlo, rhi, rbase, off) lw rlo, (off+4)(rbase); \ 217 lw rhi, (off)(rbase) 218 #define STORE64_off_F(rlo, rhi, rbase, off) s.s rlo, (off+4)(rbase); \ 219 s.s rhi, (off)(rbase) 220 #define LOAD64_off_F(rlo, rhi, rbase, off) l.s rlo, (off+4)(rbase); \ 221 l.s rhi, (off)(rbase) 222 #endif 223 224 #define STORE64(rlo, rhi, rbase) STORE64_off(rlo, rhi, rbase, 0) 225 #define LOAD64(rlo, rhi, rbase) LOAD64_off(rlo, rhi, rbase, 0) 226 227 #define vSTORE64(rlo, rhi, rbase) vSTORE64_off(rlo, rhi, rbase, 0) 228 #define vLOAD64(rlo, rhi, rbase) vLOAD64_off(rlo, rhi, rbase, 0) 229 230 #define STORE64_F(rlo, rhi, rbase) STORE64_off_F(rlo, rhi, rbase, 0) 231 #define LOAD64_F(rlo, rhi, rbase) LOAD64_off_F(rlo, rhi, rbase, 0) 232 233 #define STORE64_lo(rd, rbase) sw rd, 0(rbase) 234 #define STORE64_hi(rd, rbase) sw rd, 4(rbase) 235 236 237 #define LOAD_offThread_exception(rd, rbase) LOAD_RB_OFF(rd, rbase, offThread_exception) 238 #define LOAD_base_offArrayObject_length(rd, rbase) LOAD_RB_OFF(rd, rbase, offArrayObject_length) 239 #define LOAD_base_offClassObject_accessFlags(rd, rbase) LOAD_RB_OFF(rd, rbase, offClassObject_accessFlags) 240 #define LOAD_base_offClassObject_descriptor(rd, rbase) LOAD_RB_OFF(rd, rbase, offClassObject_descriptor) 241 #define LOAD_base_offClassObject_super(rd, rbase) LOAD_RB_OFF(rd, rbase, offClassObject_super) 242 243 #define LOAD_base_offClassObject_vtable(rd, rbase) LOAD_RB_OFF(rd, rbase, offClassObject_vtable) 244 #define LOAD_base_offClassObject_vtableCount(rd, rbase) LOAD_RB_OFF(rd, rbase, offClassObject_vtableCount) 245 #define LOAD_base_offDvmDex_pResClasses(rd, rbase) LOAD_RB_OFF(rd, rbase, offDvmDex_pResClasses) 246 #define LOAD_base_offDvmDex_pResFields(rd, rbase) LOAD_RB_OFF(rd, rbase, offDvmDex_pResFields) 247 248 #define LOAD_base_offDvmDex_pResMethods(rd, rbase) LOAD_RB_OFF(rd, rbase, offDvmDex_pResMethods) 249 #define LOAD_base_offDvmDex_pResStrings(rd, rbase) LOAD_RB_OFF(rd, rbase, offDvmDex_pResStrings) 250 #define LOAD_base_offInstField_byteOffset(rd, rbase) LOAD_RB_OFF(rd, rbase, offInstField_byteOffset) 251 #define LOAD_base_offStaticField_value(rd, rbase) LOAD_RB_OFF(rd, rbase, offStaticField_value) 252 #define LOAD_base_offMethod_clazz(rd, rbase) LOAD_RB_OFF(rd, rbase, offMethod_clazz) 253 254 #define LOAD_base_offMethod_name(rd, rbase) LOAD_RB_OFF(rd, rbase, offMethod_name) 255 #define LOAD_base_offObject_clazz(rd, rbase) LOAD_RB_OFF(rd, rbase, offObject_clazz) 256 257 #define LOADu2_offMethod_methodIndex(rd, rbase) LOADu2_RB_OFF(rd, rbase, offMethod_methodIndex) 258 259 260 #define STORE_offThread_exception(rd, rbase) STORE_RB_OFF(rd, rbase, offThread_exception) 261 262 263 #define STACK_STORE(rd, off) sw rd, off(sp) 264 #define STACK_LOAD(rd, off) lw rd, off(sp) 265 #define CREATE_STACK(n) subu sp, sp, n 266 #define DELETE_STACK(n) addu sp, sp, n 267 268 #define SAVE_RA(offset) STACK_STORE(ra, offset) 269 #define LOAD_RA(offset) STACK_LOAD(ra, offset) 270 271 #define LOAD_ADDR(dest, addr) la dest, addr 272 #define LOAD_IMM(dest, imm) li dest, imm 273 #define MOVE_REG(dest, src) move dest, src 274 #define RETURN jr ra 275 #define STACK_SIZE 128 276 277 #define STACK_OFFSET_ARG04 16 278 #define STACK_OFFSET_ARG05 20 279 #define STACK_OFFSET_ARG06 24 280 #define STACK_OFFSET_ARG07 28 281 #define STACK_OFFSET_SCR 32 282 #define STACK_OFFSET_SCRMX 80 283 #define STACK_OFFSET_GP 84 284 #define STACK_OFFSET_rFP 112 285 286 #define JAL(n) jal n 287 #define BAL(n) bal n 288 289 #define STACK_STORE_RA() CREATE_STACK(STACK_SIZE); \ 290 STACK_STORE(gp, STACK_OFFSET_GP); \ 291 STACK_STORE(ra, 124) 292 293 #define STACK_STORE_S0() STACK_STORE_RA(); \ 294 STACK_STORE(s0, 116) 295 296 #define STACK_STORE_S0S1() STACK_STORE_S0(); \ 297 STACK_STORE(s1, STACK_OFFSET_rFP) 298 299 #define STACK_LOAD_RA() STACK_LOAD(ra, 124); \ 300 STACK_LOAD(gp, STACK_OFFSET_GP); \ 301 DELETE_STACK(STACK_SIZE) 302 303 #define STACK_LOAD_S0() STACK_LOAD(s0, 116); \ 304 STACK_LOAD_RA() 305 306 #define STACK_LOAD_S0S1() STACK_LOAD(s1, STACK_OFFSET_rFP); \ 307 STACK_LOAD_S0() 308 309 #define STACK_STORE_FULL() CREATE_STACK(STACK_SIZE); \ 310 STACK_STORE(ra, 124); \ 311 STACK_STORE(fp, 120); \ 312 STACK_STORE(s0, 116); \ 313 STACK_STORE(s1, STACK_OFFSET_rFP); \ 314 STACK_STORE(s2, 108); \ 315 STACK_STORE(s3, 104); \ 316 STACK_STORE(s4, 100); \ 317 STACK_STORE(s5, 96); \ 318 STACK_STORE(s6, 92); \ 319 STACK_STORE(s7, 88); 320 321 #define STACK_LOAD_FULL() STACK_LOAD(gp, STACK_OFFSET_GP); \ 322 STACK_LOAD(s7, 88); \ 323 STACK_LOAD(s6, 92); \ 324 STACK_LOAD(s5, 96); \ 325 STACK_LOAD(s4, 100); \ 326 STACK_LOAD(s3, 104); \ 327 STACK_LOAD(s2, 108); \ 328 STACK_LOAD(s1, STACK_OFFSET_rFP); \ 329 STACK_LOAD(s0, 116); \ 330 STACK_LOAD(fp, 120); \ 331 STACK_LOAD(ra, 124); \ 332 DELETE_STACK(STACK_SIZE) 333 334 /* 335 * first 8 words are reserved for function calls 336 * Maximum offset is STACK_OFFSET_SCRMX-STACK_OFFSET_SCR 337 */ 338 #define SCRATCH_STORE(r,off) \ 339 STACK_STORE(r, STACK_OFFSET_SCR+off); 340 #define SCRATCH_LOAD(r,off) \ 341 STACK_LOAD(r, STACK_OFFSET_SCR+off); 342 343 #if defined(WITH_JIT) 344 #include "../common/jit-config.h" 345 #endif 346
