fbinop2addr.S revision 1452bee8f06b9f76a333ddf4760e4beaa82f8099 
1    /*
2     * Generic 32-bit floating point "/2addr" binary operation.  Provide
3     * an "instr" line that specifies an instruction that performs
4     * "s2 = s0 op s1".
5     *
6     * For: add-float/2addr, sub-float/2addr, mul-float/2addr, div-float/2addr
7     */
8    /* binop/2addr vA, vB */
9    mov     r3, rINST, lsr #12          @ r3<- B
10    mov     r9, rINST, lsr #8           @ r9<- A+
11    VREG_INDEX_TO_ADDR r3, r3           @ r3<- &vB
12    and     r9, r9, #15                 @ r9<- A
13    flds    s1, [r3]                    @ s1<- vB
14    VREG_INDEX_TO_ADDR r9, r9           @ r9<- &vA
15    FETCH_ADVANCE_INST 1                @ advance rPC, load rINST
16    flds    s0, [r9]                    @ s0<- vA
17
18    $instr                              @ s2<- op
19    GET_INST_OPCODE ip                  @ extract opcode from rINST
20    fsts    s2, [r9]                    @ vAA<- s2
21    GOTO_OPCODE ip                      @ jump to next instruction
22