blob: 8a6980eceabb966e5a62abafc6eaca1efefc1977 [file] [log] [blame]
/*
* Unconditional branch, 32-bit offset.
*
* The branch distance is a signed code-unit offset, which we need to
* double to get a byte offset.
*
* Unlike most opcodes, this one is allowed to branch to itself, so
* our "backward branch" test must be "<=0" instead of "<0". Because
* we need the V bit set, we'll use an adds to convert from Dalvik
* offset to byte offset.
*/
/* goto/32 +AAAAAAAA */
#if MTERP_SUSPEND
FETCH w0, 1 // w0<- aaaa (lo)
FETCH w1, 2 // w1<- AAAA (hi)
orr w0, w0, w1, lsl #16 // w0<- AAAAaaaa
adds w1, w0, w0 // w1<- byte offset
FETCH_ADVANCE_INST_RB w1 // update rPC, load xINST
ldrle xIBASE, [xSELF, #THREAD_CURRENT_IBASE_OFFSET] // refresh handler base
GET_INST_OPCODE ip // extract opcode from xINST
GOTO_OPCODE ip // jump to next instruction
#else
FETCH w0, 1 // w0<- aaaa (lo)
FETCH w1, 2 // w1<- AAAA (hi)
ldr w7, [xSELF, #THREAD_FLAGS_OFFSET]
orr w0, w0, w1, lsl #16 // w0<- AAAAaaaa
adds w1, w0, w0 // w1<- byte offset
FETCH_ADVANCE_INST_RB w1 // update rPC, load xINST
b.le MterpCheckSuspendAndContinue
GET_INST_OPCODE ip // extract opcode from xINST
GOTO_OPCODE ip // jump to next instruction
#endif