📄 m3s053ct.v
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//******************************************************************* ////IMPORTANT NOTICE ////================ ////Copyright Mentor Graphics Corporation 1996 - 1998. All rights reserved. ////This file and associated deliverables are the trade secrets, ////confidential information and copyrighted works of Mentor Graphics ////Corporation and its licensors and are subject to your license agreement ////with Mentor Graphics Corporation. //// ////These deliverables may be used for the purpose of making silicon for one ////IC design only. No further use of these deliverables for the purpose of ////making silicon from an IC design is permitted without the payment of an ////additional license fee. See your license agreement with Mentor Graphics ////for further details. If you have further questions please contact ////Mentor Graphics Customer Support. //// ////This Mentor Graphics core (m320c50eng v1999.010) was extracted on ////workstation hostid 800059c1 Inventra //// Rotate/Shift Input Control// Copyright Mentor Graphics Corporation and Licensors 1998.// V1.000// m3s053ct// M320C50 Control signals for input mux to CALU rotate/shift function.// These control signals are put in a separate block to prevent the// synthesiser from mixing them with the surrounding logic.// ALUCntrlBits[3:0] are ALUCntrl[10:7]// SRCntrlBits[3:0] are SRCntrl[6:4,0]// RSSrc[2:0] selects the input source as follows:// 0: ALU_Op// 1: RightShiftOp// 2: ACCBmodule m3s053ct (ALUCntrlBits, SRCntrlBits, ACC_MSB, CarryOut,//******************************************************************* ////IMPORTANT NOTICE ////================ ////Copyright Mentor Graphics Corporation 1996 - 1998. All rights reserved. ////This file and associated deliverables are the trade secrets, ////confidential information and copyrighted works of Mentor Graphics ////Corporation and its licensors and are subject to your license agreement ////with Mentor Graphics Corporation. //// ////These deliverables may be used for the purpose of making silicon for one ////IC design only. No further use of these deliverables for the purpose of ////making silicon from an IC design is permitted without the payment of an ////additional license fee. See your license agreement with Mentor Graphics ////for further details. If you have further questions please contact ////Mentor Graphics Customer Support. //// ////This Mentor Graphics core (m320c50eng v1999.010) was extracted on ////workstation hostid 800059c1 Inventra // ALUOp_MSB, ALU_OV, RSSrc); input [3:0] ALUCntrlBits, SRCntrlBits; input ACC_MSB, CarryOut, ALUOp_MSB, ALU_OV; output [2:0] RSSrc; reg [2:0] RSSrc; reg CmprACCs;always @(ALUCntrlBits or ALUOp_MSB or ALU_OV) CmprACCs = ((ALU_OV ~^ ALUOp_MSB) & ALUCntrlBits[2]) | (~(ALU_OV ~^ ALUOp_MSB) & ALUCntrlBits[3]);always @(ALUCntrlBits or ACC_MSB or CarryOut or SRCntrlBits or CmprACCs)begin RSSrc[0] = ~((ALUCntrlBits[0] & ~ACC_MSB) | (ALUCntrlBits[1] & ~CarryOut) | ALUCntrlBits[2] | ALUCntrlBits[3] | SRCntrlBits[0] | SRCntrlBits[1] | SRCntrlBits[2] | SRCntrlBits[3]); RSSrc[1] = (ALUCntrlBits[0] & ~ACC_MSB) | (ALUCntrlBits[1] & ~CarryOut) | ((ALUCntrlBits[2] | ALUCntrlBits[3]) & CmprACCs) | SRCntrlBits[0] | SRCntrlBits[1] | SRCntrlBits[2] | SRCntrlBits[3]; RSSrc[2] = ~CmprACCs & (ALUCntrlBits[2] | ALUCntrlBits[3]);endendmodule⌨️ 快捷键说明
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