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%default { "store":"movl", "reg":"rINST_FULL", "sqnum":"0" }
%verify "executed"
%verify "null object"
%verify "field already resolved"
%verify "field not yet resolved"
%verify "field cannot be resolved"
/*
* General 32-bit instance field put.
*
* for: iput, iput-object, iput-boolean, iput-byte, iput-char, iput-short
*/
/* op vA, vB, field@CCCC */
GET_GLUE(%ecx)
SPILL(rIBASE) # need another reg
movzwl 2(rPC),rIBASE # rIBASE<- 0000CCCC
movl offGlue_methodClassDex(%ecx),%eax # eax<- DvmDex
movzbl rINST_HI,%ecx # ecx<- BA
sarl $$4,%ecx # ecx<- B
movl offDvmDex_pResFields(%eax),%eax # eax<- pDvmDex->pResFields
movzbl rINST_HI,rINST_FULL # rINST_FULL<- BA
andb $$0xf,rINST_LO # rINST_FULL<- A
GET_VREG(%ecx,%ecx) # ecx<- fp[B], the object ptr
movl (%eax,rIBASE,4),%eax # resolved entry
testl %eax,%eax # is resolved entry null?
jne .L${opcode}_finish # no, already resolved
movl rIBASE,OUT_ARG1(%esp)
GET_GLUE(rIBASE)
jmp .L${opcode}_resolve
%break
.L${opcode}_resolve:
EXPORT_PC()
SPILL(rPC)
movl offGlue_method(rIBASE),rPC # rPC<- current method
UNSPILL(rIBASE)
movl offMethod_clazz(rPC),rPC # rPC<- method->clazz
SPILL_TMP(%ecx) # save object pointer across call
movl rPC,OUT_ARG0(%esp) # pass in method->clazz
call dvmResolveInstField # ... to dvmResolveInstField
UNSPILL_TMP(%ecx)
UNSPILL(rPC)
testl %eax,%eax # ... which returns InstrField ptr
jne .L${opcode}_finish
jmp common_exceptionThrown
.L${opcode}_finish:
/*
* Currently:
* eax holds resolved field
* ecx holds object
* rIBASE is scratch, but needs to be unspilled
* rINST_FULL holds A
*/
GET_VREG(rINST_FULL,rINST_FULL) # rINST_FULL<- v[A]
movl offInstField_byteOffset(%eax),%eax # eax<- byte offset of field
UNSPILL(rIBASE)
testl %ecx,%ecx # object null?
je common_errNullObject # object was null
$store $reg,(%ecx,%eax,1) # obj.field <- v[A](8/16/32 bits)
FETCH_INST_WORD(2)
ADVANCE_PC(2)
GOTO_NEXT
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