1%default {"preinstr":"", "result0":"a0", "result1":"a1", "chkzero":"0", "arg0":"a0", "arg1":"a1", "arg2":"a2", "arg3":"a3"}
2    /*
3     * Generic 64-bit "/2addr" binary operation.  Provide an "instr" line
4     * that specifies an instruction that performs "result = a0-a1 op a2-a3".
5     * This could be a MIPS instruction or a function call.  (If the result
6     * comes back in a register other than a0, you can override "result".)
7     *
8     * If "chkzero" is set to 1, we perform a divide-by-zero check on
9     * vCC (a1).  Useful for integer division and modulus.
10     *
11     * For: add-long/2addr, sub-long/2addr, div-long/2addr, rem-long/2addr,
12     *      and-long/2addr, or-long/2addr, xor-long/2addr
13     *      rem-double/2addr
14     */
15    /* binop/2addr vA, vB */
16    GET_OPA4(rOBJ)                         #  rOBJ <- A+
17    GET_OPB(a1)                            #  a1 <- B
18    EAS2(a1, rFP, a1)                      #  a1 <- &fp[B]
19    EAS2(t0, rFP, rOBJ)                    #  t0 <- &fp[A]
20    LOAD64($arg2, $arg3, a1)               #  a2/a3 <- vBB/vBB+1
21    LOAD64($arg0, $arg1, t0)               #  a0/a1 <- vAA/vAA+1
22    .if $chkzero
23    or        t0, $arg2, $arg3             #  second arg (a2-a3) is zero?
24    beqz      t0, common_errDivideByZero
25    .endif
26    FETCH_ADVANCE_INST(1)                  #  advance rPC, load rINST
27
28    $preinstr                              #  optional op
29    $instr                                 #  result <- op, a0-a3 changed
30    GET_INST_OPCODE(t0)                    #  extract opcode from rINST
31    SET_VREG64($result0, $result1, rOBJ)   #  vAA/vAA+1 <- $result0/$result1
32    GOTO_OPCODE(t0)                        #  jump to next instruction
33    /* 12-15 instructions */
34