1 %default {"volatile":"0"} 2 %verify "executed" 3 %verify "null object" 4 %verify "field already resolved" 5 %verify "field not yet resolved" 6 %verify "field cannot be resolved" 7 /* 8 * Wide 32-bit instance field get. 9 */ 10 /* iget-wide vA, vB, field@CCCC */ 11 mov r0, rINST, lsr #12 @ r0<- B 12 ldr r3, [rSELF, #offThread_methodClassDex] @ r3<- DvmDex 13 FETCH(r1, 1) @ r1<- field ref CCCC 14 ldr r2, [r3, #offDvmDex_pResFields] @ r2<- pResFields 15 GET_VREG(r9, r0) @ r9<- fp[B], the object pointer 16 ldr r0, [r2, r1, lsl #2] @ r0<- resolved InstField ptr 17 cmp r0, #0 @ is resolved entry null? 18 bne .L${opcode}_finish @ no, already resolved 19 8: ldr r2, [rSELF, #offThread_method] @ r2<- current method 20 EXPORT_PC() @ resolve() could throw 21 ldr r0, [r2, #offMethod_clazz] @ r0<- method->clazz 22 bl dvmResolveInstField @ r0<- resolved InstField ptr 23 cmp r0, #0 24 bne .L${opcode}_finish 25 b common_exceptionThrown 26 %break 27 28 /* 29 * Currently: 30 * r0 holds resolved field 31 * r9 holds object 32 */ 33 .L${opcode}_finish: 34 cmp r9, #0 @ check object for null 35 ldr r3, [r0, #offInstField_byteOffset] @ r3<- byte offset of field 36 beq common_errNullObject @ object was null 37 .if $volatile 38 add r0, r9, r3 @ r0<- address of field 39 bl dvmQuasiAtomicRead64 @ r0/r1<- contents of field 40 .else 41 ldrd r0, [r9, r3] @ r0/r1<- obj.field (64-bit align ok) 42 .endif 43 mov r2, rINST, lsr #8 @ r2<- A+ 44 FETCH_ADVANCE_INST(2) @ advance rPC, load rINST 45 and r2, r2, #15 @ r2<- A 46 add r3, rFP, r2, lsl #2 @ r3<- &fp[A] 47 GET_INST_OPCODE(ip) @ extract opcode from rINST 48 stmia r3, {r0-r1} @ fp[A]<- r0/r1 49 GOTO_OPCODE(ip) @ jump to next instruction 50
