summaryrefslogtreecommitdiff
path: root/vm/mterp/x86/OP_IPUT_WIDE_QUICK.S
diff options
context:
space:
mode:
Diffstat (limited to 'vm/mterp/x86/OP_IPUT_WIDE_QUICK.S')
-rw-r--r--vm/mterp/x86/OP_IPUT_WIDE_QUICK.S19
1 files changed, 19 insertions, 0 deletions
diff --git a/vm/mterp/x86/OP_IPUT_WIDE_QUICK.S b/vm/mterp/x86/OP_IPUT_WIDE_QUICK.S
new file mode 100644
index 0000000..12eeed6
--- /dev/null
+++ b/vm/mterp/x86/OP_IPUT_WIDE_QUICK.S
@@ -0,0 +1,19 @@
+%verify "executed"
+%verify "null object"
+ /* For: iput-wide-quick */
+ /* op vA, vB, offset@CCCC */
+ movzbl rINSTbl,%ecx # ecx<- BA
+ sarl $$4,%ecx # ecx<- B
+ GET_VREG_R %ecx %ecx # vB (object we're operating on)
+ movzwl 2(rPC),%eax # eax<- field byte offset
+ testl %ecx,%ecx # is object null?
+ je common_errNullObject
+ leal (%ecx,%eax,1),%ecx # ecx<- Address of 64-bit target
+ andb $$0xf,rINSTbl # rINST<- A
+ GET_VREG_WORD %eax rINST 0 # eax<- lsw
+ GET_VREG_WORD rINST rINST 1 # rINST<- msw
+ movl %eax,(%ecx)
+ movl rINST,4(%ecx)
+ FETCH_INST_OPCODE 2 %ecx
+ ADVANCE_PC 2
+ GOTO_NEXT_R %ecx