1 %verify "executed" 2 /* 3 * Signed 64-bit integer multiply. 4 * a1 a0 5 * x a3 a2 6 * ------------- 7 * a2a1 a2a0 8 * a3a0 9 * a3a1 (<= unused) 10 * --------------- 11 * v1 v0 12 */ 13 /* mul-long vAA, vBB, vCC */ 14 FETCH(a0, 1) # a0 <- CCBB 15 and t0, a0, 255 # a2 <- BB 16 srl t1, a0, 8 # a3 <- CC 17 EAS2(t0, rFP, t0) # t0 <- &fp[BB] 18 LOAD64(a0, a1, t0) # a0/a1 <- vBB/vBB+1 19 20 EAS2(t1, rFP, t1) # t0 <- &fp[CC] 21 LOAD64(a2, a3, t1) # a2/a3 <- vCC/vCC+1 22 23 mul v1, a3, a0 # v1= a3a0 24 multu a2, a0 25 mfhi t1 26 mflo v0 # v0= a2a0 27 mul t0, a2, a1 # t0= a2a1 28 addu v1, v1, t1 # v1+= hi(a2a0) 29 addu v1, v1, t0 # v1= a3a0 + a2a1; 30 31 GET_OPA(a0) # a0 <- AA 32 EAS2(a0, rFP, a0) # a0 <- &fp[A] 33 FETCH_ADVANCE_INST(2) # advance rPC, load rINST 34 b .L${opcode}_finish 35 %break 36 37 .L${opcode}_finish: 38 GET_INST_OPCODE(t0) # extract opcode from rINST 39 STORE64(v0, v1, a0) # vAA::vAA+1 <- v0(low) :: v1(high) 40 GOTO_OPCODE(t0) # jump to next instruction 41 42
