diff options
Diffstat (limited to 'vm/mterp/armv5te/OP_IGET_WIDE.S')
| -rw-r--r-- | vm/mterp/armv5te/OP_IGET_WIDE.S | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/vm/mterp/armv5te/OP_IGET_WIDE.S b/vm/mterp/armv5te/OP_IGET_WIDE.S new file mode 100644 index 0000000..c73edfd --- /dev/null +++ b/vm/mterp/armv5te/OP_IGET_WIDE.S @@ -0,0 +1,49 @@ +%default {"volatile":"0"} +%verify "executed" +%verify "null object" +%verify "field already resolved" +%verify "field not yet resolved" +%verify "field cannot be resolved" + /* + * Wide 32-bit instance field get. + */ + /* iget-wide vA, vB, field@CCCC */ + mov r0, rINST, lsr #12 @ r0<- B + ldr r3, [rSELF, #offThread_methodClassDex] @ r3<- DvmDex + FETCH(r1, 1) @ r1<- field ref CCCC + ldr r2, [r3, #offDvmDex_pResFields] @ r2<- pResFields + GET_VREG(r9, r0) @ r9<- fp[B], the object pointer + ldr r0, [r2, r1, lsl #2] @ r0<- resolved InstField ptr + cmp r0, #0 @ is resolved entry null? + bne .L${opcode}_finish @ no, already resolved +8: ldr r2, [rSELF, #offThread_method] @ r2<- current method + EXPORT_PC() @ resolve() could throw + ldr r0, [r2, #offMethod_clazz] @ r0<- method->clazz + bl dvmResolveInstField @ r0<- resolved InstField ptr + cmp r0, #0 + bne .L${opcode}_finish + b common_exceptionThrown +%break + + /* + * Currently: + * r0 holds resolved field + * r9 holds object + */ +.L${opcode}_finish: + cmp r9, #0 @ check object for null + ldr r3, [r0, #offInstField_byteOffset] @ r3<- byte offset of field + beq common_errNullObject @ object was null + .if $volatile + add r0, r9, r3 @ r0<- address of field + bl dvmQuasiAtomicRead64 @ r0/r1<- contents of field + .else + ldrd r0, [r9, r3] @ r0/r1<- obj.field (64-bit align ok) + .endif + mov r2, rINST, lsr #8 @ r2<- A+ + FETCH_ADVANCE_INST(2) @ advance rPC, load rINST + and r2, r2, #15 @ r2<- A + add r3, rFP, r2, lsl #2 @ r3<- &fp[A] + GET_INST_OPCODE(ip) @ extract opcode from rINST + stmia r3, {r0-r1} @ fp[A]<- r0/r1 + GOTO_OPCODE(ip) @ jump to next instruction |