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D950-CORE 数据表(PDF) 49 Page - STMicroelectronics |
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D950-CORE 数据表(HTML) 49 Page - STMicroelectronics |
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49 / 89 page  49/89 D950-Core Multiplier Operations DMULT Double precision multiplication MULT Multiplication SQR Square Figure 5.8 Double precision multiplication Figure 5.9 Multiplication , *AXm + IXs = Lp ApH *AYn + IYr = Rq ApH Ai + = P - = P , A + = P - = P , Ai + = P - = P , A + = P - = P , Ai + = P - = P , P = Lj MULT Rk Rj AjH AkH PH A + = P - = P , P = Lj DMULT Rk Rj AjH AkH PH , (RND) +C31 (RND) +C31 (RND) +C31 Lp = *AXm + IXs Lp = *AXm + IXs ApH , Rq = *AYn + IYr ApH Rq = *Ayn + IYr P = Lj MULT Rk P = Lj DMULT Rk P = Lj MULT Rk P = Lj DMULT Rk VR02018G , , , (RND) L0 = *AX1 + IX3 L1 , R0 = *AY1 + IY3 R1 P = R1 MULT R1 L1 MULT R1 A1H MULT R1 L1 MULT A1H A1 = P + R1 P - P - P + R1 , , (RND) L0 = *AX1 + IX3 L1 P = R1 MULT R1 L1 MULT R1 A1H MULT R1 L1 MULT A1H A1 = P + R1 P - P - P + R1 *AY1 + IY3 = A1H , , , (RND) R0 = *AY1 + IY3 R1 P = R1 MULT R1 L1 MULT R1 A1H MULT R1 L1 MULT A1H A1 = P + R1 P - P - P + R1 *AX1 + IX3 = A1H VR02018H 6 |
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