1// Copyright 2018 The Go Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style 3// license that can be found in the LICENSE file. 4 5package wasm 6 7import "cmd/internal/obj" 8 9//go:generate go run ../stringer.go -i $GOFILE -o anames.go -p wasm 10 11const ( 12 /* mark flags */ 13 DONE = 1 << iota 14 PRESERVEFLAGS // not allowed to clobber flags 15) 16 17/* 18 * wasm 19 */ 20const ( 21 AGet = obj.ABaseWasm + obj.A_ARCHSPECIFIC + iota 22 ASet 23 ATee 24 ANot // alias for I32Eqz 25 26 // The following are low-level WebAssembly instructions. 27 // Their order matters, since it matches the opcode encoding. 28 // Gaps in the encoding are indicated by comments. 29 30 AUnreachable // opcode 0x00 31 ANop 32 ABlock 33 ALoop 34 AIf 35 AElse 36 37 AEnd // opcode 0x0B 38 ABr 39 ABrIf 40 ABrTable 41 // ACall and AReturn are WebAssembly instructions. obj.ACALL and obj.ARET are higher level instructions 42 // with Go semantics, e.g. they manipulate the Go stack on the linear memory. 43 AReturn 44 ACall 45 ACallIndirect 46 47 ADrop // opcode 0x1A 48 ASelect 49 50 ALocalGet // opcode 0x20 51 ALocalSet 52 ALocalTee 53 AGlobalGet 54 AGlobalSet 55 56 AI32Load // opcode 0x28 57 AI64Load 58 AF32Load 59 AF64Load 60 AI32Load8S 61 AI32Load8U 62 AI32Load16S 63 AI32Load16U 64 AI64Load8S 65 AI64Load8U 66 AI64Load16S 67 AI64Load16U 68 AI64Load32S 69 AI64Load32U 70 AI32Store 71 AI64Store 72 AF32Store 73 AF64Store 74 AI32Store8 75 AI32Store16 76 AI64Store8 77 AI64Store16 78 AI64Store32 79 ACurrentMemory 80 AGrowMemory 81 82 AI32Const 83 AI64Const 84 AF32Const 85 AF64Const 86 87 AI32Eqz 88 AI32Eq 89 AI32Ne 90 AI32LtS 91 AI32LtU 92 AI32GtS 93 AI32GtU 94 AI32LeS 95 AI32LeU 96 AI32GeS 97 AI32GeU 98 99 AI64Eqz 100 AI64Eq 101 AI64Ne 102 AI64LtS 103 AI64LtU 104 AI64GtS 105 AI64GtU 106 AI64LeS 107 AI64LeU 108 AI64GeS 109 AI64GeU 110 111 AF32Eq 112 AF32Ne 113 AF32Lt 114 AF32Gt 115 AF32Le 116 AF32Ge 117 118 AF64Eq 119 AF64Ne 120 AF64Lt 121 AF64Gt 122 AF64Le 123 AF64Ge 124 125 AI32Clz 126 AI32Ctz 127 AI32Popcnt 128 AI32Add 129 AI32Sub 130 AI32Mul 131 AI32DivS 132 AI32DivU 133 AI32RemS 134 AI32RemU 135 AI32And 136 AI32Or 137 AI32Xor 138 AI32Shl 139 AI32ShrS 140 AI32ShrU 141 AI32Rotl 142 AI32Rotr 143 144 AI64Clz 145 AI64Ctz 146 AI64Popcnt 147 AI64Add 148 AI64Sub 149 AI64Mul 150 AI64DivS 151 AI64DivU 152 AI64RemS 153 AI64RemU 154 AI64And 155 AI64Or 156 AI64Xor 157 AI64Shl 158 AI64ShrS 159 AI64ShrU 160 AI64Rotl 161 AI64Rotr 162 163 AF32Abs 164 AF32Neg 165 AF32Ceil 166 AF32Floor 167 AF32Trunc 168 AF32Nearest 169 AF32Sqrt 170 AF32Add 171 AF32Sub 172 AF32Mul 173 AF32Div 174 AF32Min 175 AF32Max 176 AF32Copysign 177 178 AF64Abs 179 AF64Neg 180 AF64Ceil 181 AF64Floor 182 AF64Trunc 183 AF64Nearest 184 AF64Sqrt 185 AF64Add 186 AF64Sub 187 AF64Mul 188 AF64Div 189 AF64Min 190 AF64Max 191 AF64Copysign 192 193 AI32WrapI64 194 AI32TruncF32S 195 AI32TruncF32U 196 AI32TruncF64S 197 AI32TruncF64U 198 AI64ExtendI32S 199 AI64ExtendI32U 200 AI64TruncF32S 201 AI64TruncF32U 202 AI64TruncF64S 203 AI64TruncF64U 204 AF32ConvertI32S 205 AF32ConvertI32U 206 AF32ConvertI64S 207 AF32ConvertI64U 208 AF32DemoteF64 209 AF64ConvertI32S 210 AF64ConvertI32U 211 AF64ConvertI64S 212 AF64ConvertI64U 213 AF64PromoteF32 214 AI32ReinterpretF32 215 AI64ReinterpretF64 216 AF32ReinterpretI32 217 AF64ReinterpretI64 218 AI32Extend8S 219 AI32Extend16S 220 AI64Extend8S 221 AI64Extend16S 222 AI64Extend32S 223 224 AI32TruncSatF32S // opcode 0xFC 0x00 225 AI32TruncSatF32U 226 AI32TruncSatF64S 227 AI32TruncSatF64U 228 AI64TruncSatF32S 229 AI64TruncSatF32U 230 AI64TruncSatF64S 231 AI64TruncSatF64U 232 233 AMemoryInit 234 ADataDrop 235 AMemoryCopy 236 AMemoryFill 237 ATableInit 238 AElemDrop 239 ATableCopy 240 ATableGrow 241 ATableSize 242 ATableFill 243 244 ALast // Sentinel: End of low-level WebAssembly instructions. 245 246 ARESUMEPOINT 247 // ACALLNORESUME is a call which is not followed by a resume point. 248 // It is allowed inside of WebAssembly blocks, whereas obj.ACALL is not. 249 // However, it is not allowed to switch goroutines while inside of an ACALLNORESUME call. 250 ACALLNORESUME 251 252 ARETUNWIND 253 254 AMOVB 255 AMOVH 256 AMOVW 257 AMOVD 258 259 AWORD 260 ALAST 261) 262 263const ( 264 REG_NONE = 0 265) 266 267const ( 268 // globals 269 REG_SP = obj.RBaseWasm + iota // SP is currently 32-bit, until 64-bit memory operations are available 270 REG_CTXT 271 REG_g 272 // RET* are used by runtime.return0 and runtime.reflectcall. These functions pass return values in registers. 273 REG_RET0 274 REG_RET1 275 REG_RET2 276 REG_RET3 277 REG_PAUSE 278 279 // i32 locals 280 REG_R0 281 REG_R1 282 REG_R2 283 REG_R3 284 REG_R4 285 REG_R5 286 REG_R6 287 REG_R7 288 REG_R8 289 REG_R9 290 REG_R10 291 REG_R11 292 REG_R12 293 REG_R13 294 REG_R14 295 REG_R15 296 297 // f32 locals 298 REG_F0 299 REG_F1 300 REG_F2 301 REG_F3 302 REG_F4 303 REG_F5 304 REG_F6 305 REG_F7 306 REG_F8 307 REG_F9 308 REG_F10 309 REG_F11 310 REG_F12 311 REG_F13 312 REG_F14 313 REG_F15 314 315 // f64 locals 316 REG_F16 317 REG_F17 318 REG_F18 319 REG_F19 320 REG_F20 321 REG_F21 322 REG_F22 323 REG_F23 324 REG_F24 325 REG_F25 326 REG_F26 327 REG_F27 328 REG_F28 329 REG_F29 330 REG_F30 331 REG_F31 332 333 REG_PC_B // also first parameter, i32 334 335 MAXREG 336 337 MINREG = REG_SP 338 REGSP = REG_SP 339 REGCTXT = REG_CTXT 340 REGG = REG_g 341) 342