Hi Riddhi, I am not familiar with a way to trace the ALU operations and operands. You could trace the micro-ops and macro-ops and then post-process the trace to filter out the ALU operations. If you wish to do that then have a look at the Exec* debug flags. I believe the debug flags ExecEnable,ExecMicro,ExecMacro,ExecUser,ExecKernel will be useful.
Nikos From: gem5-users <gem5-users-boun...@gem5.org> on behalf of Google <thakker.wri...@gmail.com> Reply-To: gem5 users mailing list <gem5-users@gem5.org> Date: Tuesday, 10 July 2018 at 12:13 To: "gem5-users@gem5.org" <gem5-users@gem5.org> Subject: Re: [gem5-users] size variable in Packet class Hi Nikos, Thanks once again. I figured that out. Can you help me in getting instruction trace for ALU ? I tried doing this for X86 system. What I am trying to do us to get instruction traces for ALU. What I did: There is a file, regop.isa (src/arch/x86/isa/microops/). In this file, at line 506, ADD function is defined. I tried to get the values of psrc1, op2 and DestReg, but I don’t think that these are instruction trace. I have attached a patch of results below: 2117728 8 2117736 27263459 0 27263459 2117736 8 2117744 29360611 0 29360611 2117744 8 2117752 31457763 0 31457763 2117752 8 2117760 33554915 0 33554915 2117760 8 2117768 35652067 0 35652067 2117768 8 2117776 37749219 0 37749219 2117776 8 2117784 39846371 0 39846371 2117784 8 2117792 2117792 8 2117800 2117800 8 2117808 2117808 8 2117816 2117816 8 2117824 2117824 8 2117832 2117832 8 2117840 2117840 8 2117848 The first column is for psrc1, second for op2 and third is for DestReg. If u notice every time the DestReg becomes psrc1 for next operation. And this kind of pattern is observed in complete traces. I don’t think this is the instruction trace for ALU. And I am not able to find where the ALU instructions are defined. I also tried getting traces from mediaop.isa (same folder), but sometimes traces are not at all generated. I don’t why. Any suggestions would a great help to me. Thanks in advance. Regards, Riddhi Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10 IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.
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