1# Copyright (C) 2007 The Android Open Source Project 2# 3# Licensed under the Apache License, Version 2.0 (the "License"); 4# you may not use this file except in compliance with the License. 5# You may obtain a copy of the License at 6# 7# http://www.apache.org/licenses/LICENSE-2.0 8# 9# Unless required by applicable law or agreed to in writing, software 10# distributed under the License is distributed on an "AS IS" BASIS, 11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12# See the License for the specific language governing permissions and 13# limitations under the License. 14 15# 16# Bytecode definition file 17# 18 19# One line per instruction format family. Each line consists of a 20# series of instruction formats that all take (potentially) compatible 21# arguments. The order is the preferred order (most to least 22# preferable) of formats, when more than one opcode could be used for 23# a given instruction's arguments. 24# 25# Note: The family that starts with 12x has a mix of both two- and 26# three- register formats. This is because some of the two-register 27# opcodes effectively take three, with a destination and two sources 28# where the destination and one of the sources have to be the same. 29 30# Regular formats 31format 10t 20t 30t 32format 10x 33format 11n 21s 21h 31i 51l 34format 11x 35format 12x 22x 23x 32x # See note, above. 36format 21c 31c 37format 21t 31t 38format 22b 22s 39format 22c 40format 22t 41format 35c 3rc 42format 45cc 4rcc 43 44# Optimized formats 45format 00x 46format 20bc 47format 22cs 48format 35mi 49format 35ms 50format 3rmi 51format 3rms 52 53# One line per opcode. Columns are: 54# hex for opcode 55# opcode name 56# format 57# has result register; one of: 58# y 59# n 60# index type; one of: 61# unknown -- used for undefined opcodes and breakpoint 62# none 63# varies 64# type-ref 65# string-ref 66# method-ref 67# field-ref 68# inline-method 69# vtable-offset 70# field-offset 71# method-and-proto-ref 72# call-site-ref 73# method-handle-ref 74# proto-ref 75# flags; pipe-combined combo of one or more of: 76# optimized -- optimized; not to be included in unoptimized dex files 77# branch -- might branch to an address 78# continue -- might continue to the next address in sequence 79# switch -- is a switch 80# throw -- might throw an exception 81# return -- is a return from method 82# invoke -- is a method invoke; this is only used for true 83# method invokes and notably *not* vm-implemented 84# execute-inline nor the nop-equivalent 85# invoke-direct-empty 86 87# 88# Regular opcodes (with a couple holes) 89# 90 91op 00 nop 10x n none continue 92op 01 move 12x y none continue 93op 02 move/from16 22x y none continue 94op 03 move/16 32x y none continue 95op 04 move-wide 12x y none continue 96op 05 move-wide/from16 22x y none continue 97op 06 move-wide/16 32x y none continue 98op 07 move-object 12x y none continue 99op 08 move-object/from16 22x y none continue 100op 09 move-object/16 32x y none continue 101op 0a move-result 11x y none continue 102op 0b move-result-wide 11x y none continue 103op 0c move-result-object 11x y none continue 104op 0d move-exception 11x y none continue 105op 0e return-void 10x n none return 106op 0f return 11x n none return 107op 10 return-wide 11x n none return 108op 11 return-object 11x n none return 109op 12 const/4 11n y none continue 110op 13 const/16 21s y none continue 111op 14 const 31i y none continue 112op 15 const/high16 21h y none continue 113op 16 const-wide/16 21s y none continue 114op 17 const-wide/32 31i y none continue 115op 18 const-wide 51l y none continue 116op 19 const-wide/high16 21h y none continue 117op 1a const-string 21c y string-ref continue|throw 118op 1b const-string/jumbo 31c y string-ref continue|throw 119op 1c const-class 21c y type-ref continue|throw 120op 1d monitor-enter 11x n none continue|throw 121op 1e monitor-exit 11x n none continue|throw 122op 1f check-cast 21c y type-ref continue|throw 123op 20 instance-of 22c y type-ref continue|throw 124op 21 array-length 12x y none continue|throw 125op 22 new-instance 21c y type-ref continue|throw 126op 23 new-array 22c y type-ref continue|throw 127op 24 filled-new-array 35c n type-ref continue|throw 128op 25 filled-new-array/range 3rc n type-ref continue|throw 129op 26 fill-array-data 31t n none continue 130op 27 throw 11x n none throw 131op 28 goto 10t n none branch 132op 29 goto/16 20t n none branch 133op 2a goto/32 30t n none branch 134op 2b packed-switch 31t n none continue|switch 135op 2c sparse-switch 31t n none continue|switch 136op 2d cmpl-float 23x y none continue 137op 2e cmpg-float 23x y none continue 138op 2f cmpl-double 23x y none continue 139op 30 cmpg-double 23x y none continue 140op 31 cmp-long 23x y none continue 141op 32 if-eq 22t n none continue|branch 142op 33 if-ne 22t n none continue|branch 143op 34 if-lt 22t n none continue|branch 144op 35 if-ge 22t n none continue|branch 145op 36 if-gt 22t n none continue|branch 146op 37 if-le 22t n none continue|branch 147op 38 if-eqz 21t n none continue|branch 148op 39 if-nez 21t n none continue|branch 149op 3a if-ltz 21t n none continue|branch 150op 3b if-gez 21t n none continue|branch 151op 3c if-gtz 21t n none continue|branch 152op 3d if-lez 21t n none continue|branch 153# unused: op 3e..43 154op 44 aget 23x y none continue|throw 155op 45 aget-wide 23x y none continue|throw 156op 46 aget-object 23x y none continue|throw 157op 47 aget-boolean 23x y none continue|throw 158op 48 aget-byte 23x y none continue|throw 159op 49 aget-char 23x y none continue|throw 160op 4a aget-short 23x y none continue|throw 161op 4b aput 23x n none continue|throw 162op 4c aput-wide 23x n none continue|throw 163op 4d aput-object 23x n none continue|throw 164op 4e aput-boolean 23x n none continue|throw 165op 4f aput-byte 23x n none continue|throw 166op 50 aput-char 23x n none continue|throw 167op 51 aput-short 23x n none continue|throw 168op 52 iget 22c y field-ref continue|throw 169op 53 iget-wide 22c y field-ref continue|throw 170op 54 iget-object 22c y field-ref continue|throw 171op 55 iget-boolean 22c y field-ref continue|throw 172op 56 iget-byte 22c y field-ref continue|throw 173op 57 iget-char 22c y field-ref continue|throw 174op 58 iget-short 22c y field-ref continue|throw 175op 59 iput 22c n field-ref continue|throw 176op 5a iput-wide 22c n field-ref continue|throw 177op 5b iput-object 22c n field-ref continue|throw 178op 5c iput-boolean 22c n field-ref continue|throw 179op 5d iput-byte 22c n field-ref continue|throw 180op 5e iput-char 22c n field-ref continue|throw 181op 5f iput-short 22c n field-ref continue|throw 182op 60 sget 21c y field-ref continue|throw 183op 61 sget-wide 21c y field-ref continue|throw 184op 62 sget-object 21c y field-ref continue|throw 185op 63 sget-boolean 21c y field-ref continue|throw 186op 64 sget-byte 21c y field-ref continue|throw 187op 65 sget-char 21c y field-ref continue|throw 188op 66 sget-short 21c y field-ref continue|throw 189op 67 sput 21c n field-ref continue|throw 190op 68 sput-wide 21c n field-ref continue|throw 191op 69 sput-object 21c n field-ref continue|throw 192op 6a sput-boolean 21c n field-ref continue|throw 193op 6b sput-byte 21c n field-ref continue|throw 194op 6c sput-char 21c n field-ref continue|throw 195op 6d sput-short 21c n field-ref continue|throw 196op 6e invoke-virtual 35c n method-ref continue|throw|invoke 197op 6f invoke-super 35c n method-ref continue|throw|invoke 198op 70 invoke-direct 35c n method-ref continue|throw|invoke 199op 71 invoke-static 35c n method-ref continue|throw|invoke 200op 72 invoke-interface 35c n method-ref continue|throw|invoke 201# unused: op 73 202op 74 invoke-virtual/range 3rc n method-ref continue|throw|invoke 203op 75 invoke-super/range 3rc n method-ref continue|throw|invoke 204op 76 invoke-direct/range 3rc n method-ref continue|throw|invoke 205op 77 invoke-static/range 3rc n method-ref continue|throw|invoke 206op 78 invoke-interface/range 3rc n method-ref continue|throw|invoke 207# unused: op 79..7a 208op 7b neg-int 12x y none continue 209op 7c not-int 12x y none continue 210op 7d neg-long 12x y none continue 211op 7e not-long 12x y none continue 212op 7f neg-float 12x y none continue 213op 80 neg-double 12x y none continue 214op 81 int-to-long 12x y none continue 215op 82 int-to-float 12x y none continue 216op 83 int-to-double 12x y none continue 217op 84 long-to-int 12x y none continue 218op 85 long-to-float 12x y none continue 219op 86 long-to-double 12x y none continue 220op 87 float-to-int 12x y none continue 221op 88 float-to-long 12x y none continue 222op 89 float-to-double 12x y none continue 223op 8a double-to-int 12x y none continue 224op 8b double-to-long 12x y none continue 225op 8c double-to-float 12x y none continue 226op 8d int-to-byte 12x y none continue 227op 8e int-to-char 12x y none continue 228op 8f int-to-short 12x y none continue 229op 90 add-int 23x y none continue 230op 91 sub-int 23x y none continue 231op 92 mul-int 23x y none continue 232op 93 div-int 23x y none continue|throw 233op 94 rem-int 23x y none continue|throw 234op 95 and-int 23x y none continue 235op 96 or-int 23x y none continue 236op 97 xor-int 23x y none continue 237op 98 shl-int 23x y none continue 238op 99 shr-int 23x y none continue 239op 9a ushr-int 23x y none continue 240op 9b add-long 23x y none continue 241op 9c sub-long 23x y none continue 242op 9d mul-long 23x y none continue 243op 9e div-long 23x y none continue|throw 244op 9f rem-long 23x y none continue|throw 245op a0 and-long 23x y none continue 246op a1 or-long 23x y none continue 247op a2 xor-long 23x y none continue 248op a3 shl-long 23x y none continue 249op a4 shr-long 23x y none continue 250op a5 ushr-long 23x y none continue 251op a6 add-float 23x y none continue 252op a7 sub-float 23x y none continue 253op a8 mul-float 23x y none continue 254op a9 div-float 23x y none continue 255op aa rem-float 23x y none continue 256op ab add-double 23x y none continue 257op ac sub-double 23x y none continue 258op ad mul-double 23x y none continue 259op ae div-double 23x y none continue 260op af rem-double 23x y none continue 261op b0 add-int/2addr 12x y none continue 262op b1 sub-int/2addr 12x y none continue 263op b2 mul-int/2addr 12x y none continue 264op b3 div-int/2addr 12x y none continue|throw 265op b4 rem-int/2addr 12x y none continue|throw 266op b5 and-int/2addr 12x y none continue 267op b6 or-int/2addr 12x y none continue 268op b7 xor-int/2addr 12x y none continue 269op b8 shl-int/2addr 12x y none continue 270op b9 shr-int/2addr 12x y none continue 271op ba ushr-int/2addr 12x y none continue 272op bb add-long/2addr 12x y none continue 273op bc sub-long/2addr 12x y none continue 274op bd mul-long/2addr 12x y none continue 275op be div-long/2addr 12x y none continue|throw 276op bf rem-long/2addr 12x y none continue|throw 277op c0 and-long/2addr 12x y none continue 278op c1 or-long/2addr 12x y none continue 279op c2 xor-long/2addr 12x y none continue 280op c3 shl-long/2addr 12x y none continue 281op c4 shr-long/2addr 12x y none continue 282op c5 ushr-long/2addr 12x y none continue 283op c6 add-float/2addr 12x y none continue 284op c7 sub-float/2addr 12x y none continue 285op c8 mul-float/2addr 12x y none continue 286op c9 div-float/2addr 12x y none continue 287op ca rem-float/2addr 12x y none continue 288op cb add-double/2addr 12x y none continue 289op cc sub-double/2addr 12x y none continue 290op cd mul-double/2addr 12x y none continue 291op ce div-double/2addr 12x y none continue 292op cf rem-double/2addr 12x y none continue 293op d0 add-int/lit16 22s y none continue 294op d1 rsub-int 22s y none continue 295op d2 mul-int/lit16 22s y none continue 296op d3 div-int/lit16 22s y none continue|throw 297op d4 rem-int/lit16 22s y none continue|throw 298op d5 and-int/lit16 22s y none continue 299op d6 or-int/lit16 22s y none continue 300op d7 xor-int/lit16 22s y none continue 301op d8 add-int/lit8 22b y none continue 302op d9 rsub-int/lit8 22b y none continue 303op da mul-int/lit8 22b y none continue 304op db div-int/lit8 22b y none continue|throw 305op dc rem-int/lit8 22b y none continue|throw 306op dd and-int/lit8 22b y none continue 307op de or-int/lit8 22b y none continue 308op df xor-int/lit8 22b y none continue 309op e0 shl-int/lit8 22b y none continue 310op e1 shr-int/lit8 22b y none continue 311op e2 ushr-int/lit8 22b y none continue 312 313# 314# Optimized opcodes (not valid in an unoptimized dex file) 315# 316 317op e3 +iget-volatile 22c y field-ref optimized|continue|throw 318op e4 +iput-volatile 22c n field-ref optimized|continue|throw 319op e5 +sget-volatile 21c y field-ref optimized|continue|throw 320op e6 +sput-volatile 21c n field-ref optimized|continue|throw 321op e7 +iget-object-volatile 22c y field-ref optimized|continue|throw 322op e8 +iget-wide-volatile 22c y field-ref optimized|continue|throw 323op e9 +iput-wide-volatile 22c n field-ref optimized|continue|throw 324op ea +sget-wide-volatile 21c y field-ref optimized|continue|throw 325op eb +sput-wide-volatile 21c n field-ref optimized|continue|throw 326 327# Technically "breakpoint" isn't really an optimized opcode, but it 328# fits the label in terms of not being valid in regular dex files. 329op ec ^breakpoint 00x n unknown optimized 330 331op ed ^throw-verification-error 20bc n varies optimized|throw 332op ee +execute-inline 35mi n inline-method optimized|continue|throw 333op ef +execute-inline/range 3rmi n inline-method optimized|continue|throw 334 335op f0 +invoke-object-init/range 35c n method-ref optimized|continue|throw|invoke 336op f1 +return-void-barrier 10x n none optimized|return 337op f2 +iget-quick 22cs y field-offset optimized|continue|throw 338 339# unused: op f3..f9 340 341# 342# Bytecodes relating to method handles API. 343# 344 345# Invoke-polymorphic 346op fa invoke-polymorphic 45cc n method-and-proto-ref continue|throw|invoke 347op fb invoke-polymorphic/range 4rcc n method-and-proto-ref continue|throw|invoke 348op fc invoke-custom 35c n call-site-ref continue|throw|invoke 349op fd invoke-custom/range 3rc n call-site-ref continue|throw|invoke 350 351# Constant loading for method handles and method types. NB these may throw OOME 352op fe const-method-handle 21c y method-handle-ref continue|throw 353op ff const-method-type 21c y proto-ref continue|throw 354 355