blob: 6b72ff5ce2e252cc22dd3449273bd2a79c9cab29 [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 r0, 1 @ r0<- aaaa (lo)
FETCH r1, 2 @ r1<- AAAA (hi)
orr r0, r0, r1, lsl #16 @ r0<- AAAAaaaa
adds r1, r0, r0 @ r1<- byte offset
FETCH_ADVANCE_INST_RB r1 @ update rPC, load rINST
ldrle rIBASE, [rSELF, #THREAD_CURRENT_IBASE_OFFSET] @ refresh handler base
GET_INST_OPCODE ip @ extract opcode from rINST
GOTO_OPCODE ip @ jump to next instruction
#else
FETCH r0, 1 @ r0<- aaaa (lo)
FETCH r1, 2 @ r1<- AAAA (hi)
ldr lr, [rSELF, #THREAD_FLAGS_OFFSET]
orr r0, r0, r1, lsl #16 @ r0<- AAAAaaaa
adds r1, r0, r0 @ r1<- byte offset
FETCH_ADVANCE_INST_RB r1 @ update rPC, load rINST
ble MterpCheckSuspendAndContinue
GET_INST_OPCODE ip @ extract opcode from rINST
GOTO_OPCODE ip @ jump to next instruction
#endif