1 %verify "executed" 2 %verify "forward, backward, self" 3 /* 4 * Unconditional branch, 32-bit offset. 5 * 6 * The branch distance is a signed code-unit offset, which we need to 7 * double to get a byte offset. 8 * 9 * Unlike most opcodes, this one is allowed to branch to itself, so 10 * our "backward branch" test must be "<=0" instead of "<0". Because 11 * we need the V bit set, we'll use an adds to convert from Dalvik 12 * offset to byte offset. 13 */ 14 /* goto/32 +AAAAAAAA */ 15 FETCH(r0, 1) @ r0<- aaaa (lo) 16 FETCH(r1, 2) @ r1<- AAAA (hi) 17 orr r0, r0, r1, lsl #16 @ r0<- AAAAaaaa 18 adds r1, r0, r0 @ r1<- byte offset 19 #if defined(WITH_JIT) 20 ldr r0, [rSELF, #offThread_pJitProfTable] 21 ldrle rIBASE, [rSELF, #offThread_curHandlerTable] @ refresh handler base 22 FETCH_ADVANCE_INST_RB(r1) @ update rPC, load rINST 23 ble common_testUpdateProfile @ (r0) hot trace head? 24 #else 25 FETCH_ADVANCE_INST_RB(r1) @ update rPC, load rINST 26 ldrle rIBASE, [rSELF, #offThread_curHandlerTable] @ refresh handler base 27 #endif 28 GET_INST_OPCODE(ip) @ extract opcode from rINST 29 GOTO_OPCODE(ip) @ jump to next instruction 30
