1 /* 2 * Unconditional branch, 8-bit offset. 3 * 4 * The branch distance is a signed code-unit offset, which we need to 5 * double to get a byte offset. 6 */ 7 /* goto +AA */ 8 .extern MterpProfileBranch 9 srl rINST, rINST, 8 10 seb rINST, rINST # rINST <- offset (sign-extended AA) 11 #if MTERP_PROFILE_BRANCHES 12 EXPORT_PC 13 move a0, rSELF 14 daddu a1, rFP, OFF_FP_SHADOWFRAME 15 move a2, rINST 16 jal MterpProfileBranch # (self, shadow_frame, offset) 17 bnezc v0, MterpOnStackReplacement # Note: offset must be in rINST 18 #endif 19 dlsa rPC, rINST, rPC, 1 # rPC <- rPC + offset * 2 20 lw ra, THREAD_FLAGS_OFFSET(rSELF) # Preload flags for MterpCheckSuspendAndContinue 21 move a0, rINST # a0 <- offset 22 FETCH_INST # load rINST 23 bltz a0, MterpCheckSuspendAndContinue # suspend check if backwards branch 24 GET_INST_OPCODE v0 # extract opcode from rINST 25 GOTO_OPCODE v0 # jump to next instruction 26
