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
