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[Qemu-devel] [Bug 1826568] Re: RISC-V Disassembler/translator instructio

From: Floyd42
Subject: [Qemu-devel] [Bug 1826568] Re: RISC-V Disassembler/translator instruction decoding disagreement
Date: Mon, 06 May 2019 18:25:04 -0000

Sorry, I don't have the test code, since this was created by a memory
corruption. However, the way I understand the message is, that there is
some internal disagreement how to decode the op-code "051300009517e2bf"
- which mige be an invalid opcode anyway. So a simple test application
would just consist of this opcode.

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  RISC-V Disassembler/translator instruction decoding disagreement

Status in QEMU:

Bug description:
  When running QEMU V3.1.0 for platform  RISC-V, 64bit, Spike V1.10 with "-d 
in_asm -singlestep -D qemu_log.txt", my (faulty) test code brought up this 
message in the logs:

    0x000000008002cade:  051300009517e2bf  illegal         
    Disassembler disagrees with translator over instruction decoding
    Please report this to address@hidden

  You may want to resolve the disagreement.


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