26 lines
1 KiB
ArmAsm
26 lines
1 KiB
ArmAsm
%default { "extend":"", "is_object":"0", "helper":"artGet32InstanceFromCode"}
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/*
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* General instance field get.
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*
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* for: iget, iget-object, iget-boolean, iget-byte, iget-char, iget-short
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*/
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EXPORT_PC
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FETCH w0, 1 // w0<- field ref CCCC
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lsr w1, wINST, #12 // w1<- B
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GET_VREG w1, w1 // w1<- fp[B], the object pointer
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ldr x2, [xFP, #OFF_FP_METHOD] // w2<- referrer
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mov x3, xSELF // w3<- self
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bl $helper
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ldr x3, [xSELF, #THREAD_EXCEPTION_OFFSET]
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$extend
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ubfx w2, wINST, #8, #4 // w2<- A
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PREFETCH_INST 2
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cbnz x3, MterpPossibleException // bail out
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.if $is_object
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SET_VREG_OBJECT w0, w2 // fp[A]<- w0
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.else
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SET_VREG w0, w2 // fp[A]<- w0
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.endif
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ADVANCE 2
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GET_INST_OPCODE ip // extract opcode from rINST
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GOTO_OPCODE ip // jump to next instruction
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