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#if MTERP_PROFILE_BRANCHES
9    sll       a0, rINST, 16                #  a0 <- AAxx0000
10    sra       rINST, a0, 24                #  rINST <- ssssssAA (sign-extended)
11    EXPORT_PC()
12    move      a0, rSELF
13    addu      a1, rFP, OFF_FP_SHADOWFRAME
14    move      a2, rINST
15    JAL(MterpProfileBranch)                #  (self, shadow_frame, offset)
16    bnez      v0, MterpOnStackReplacement  #  Note: offset must be in rINST
17    addu      a2, rINST, rINST             #  a2 <- byte offset
18    FETCH_ADVANCE_INST_RB(a2)              #  update rPC, load rINST
19    /* If backwards branch refresh rIBASE */
20    bgez      a2, 1f
21    lw        ra, THREAD_FLAGS_OFFSET(rSELF)
22    b         MterpCheckSuspendAndContinue
231:
24    GET_INST_OPCODE(t0)                    #  extract opcode from rINST
25    GOTO_OPCODE(t0)                        #  jump to next instruction
26#else
27    sll       a0, rINST, 16                #  a0 <- AAxx0000
28    sra       rINST, a0, 24                #  rINST <- ssssssAA (sign-extended)
29    addu      a2, rINST, rINST             #  a2 <- byte offset
30    FETCH_ADVANCE_INST_RB(a2)              #  update rPC, load rINST
31    /* If backwards branch refresh rIBASE */
32    bgez      a1, 1f
33    lw        ra, THREAD_FLAGS_OFFSET(rSELF)
34    b         MterpCheckSuspendAndContinue
351:
36    GET_INST_OPCODE(t0)                    #  extract opcode from rINST
37    GOTO_OPCODE(t0)                        #  jump to next instruction
38#endif
39