| /* |
| * Unconditional branch, 8-bit offset. |
| * |
| * The branch distance is a signed code-unit offset, which we need to |
| * double to get a byte offset. |
| */ |
| /* goto +AA */ |
| #if MTERP_PROFILE_BRANCHES |
| sll a0, rINST, 16 # a0 <- AAxx0000 |
| sra rINST, a0, 24 # rINST <- ssssssAA (sign-extended) |
| EXPORT_PC() |
| move a0, rSELF |
| addu a1, rFP, OFF_FP_SHADOWFRAME |
| move a2, rINST |
| JAL(MterpProfileBranch) # (self, shadow_frame, offset) |
| bnez v0, MterpOnStackReplacement # Note: offset must be in rINST |
| addu a2, rINST, rINST # a2 <- byte offset |
| FETCH_ADVANCE_INST_RB(a2) # update rPC, load rINST |
| /* If backwards branch refresh rIBASE */ |
| bgez a2, 1f |
| lw ra, THREAD_FLAGS_OFFSET(rSELF) |
| b MterpCheckSuspendAndContinue |
| 1: |
| GET_INST_OPCODE(t0) # extract opcode from rINST |
| GOTO_OPCODE(t0) # jump to next instruction |
| #else |
| sll a0, rINST, 16 # a0 <- AAxx0000 |
| sra rINST, a0, 24 # rINST <- ssssssAA (sign-extended) |
| addu a2, rINST, rINST # a2 <- byte offset |
| FETCH_ADVANCE_INST_RB(a2) # update rPC, load rINST |
| /* If backwards branch refresh rIBASE */ |
| bgez a1, 1f |
| lw ra, THREAD_FLAGS_OFFSET(rSELF) |
| b MterpCheckSuspendAndContinue |
| 1: |
| GET_INST_OPCODE(t0) # extract opcode from rINST |
| GOTO_OPCODE(t0) # jump to next instruction |
| #endif |
