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From: bugzilla-daemon@libre-soc.org
To: libre-riscv-dev@lists.libre-riscv.org
Subject: [libre-riscv-dev] [Bug 342] formal proof of soc.fu.compunits.FunctionUnitBaseSingle needed
Date: Tue, 26 May 2020 17:35:49 +0000
Message-ID: <bug-342-13-lSPbpIuipr@https.bugs.libre-soc.org/> (raw)
In-Reply-To: <bug-342-13@https.bugs.libre-soc.org/>

https://bugs.libre-soc.org/show_bug.cgi?id=342

--- Comment #7 from Michael Nolan <mtnolan2640@gmail.com> ---
with m.If(Past(wr_rel) & Past(go_wr)):
    # the alu data is output
    comb += Assert(dut.data_o == alu_temp)
    # wr_rel is dropped
    comb += Assert(wr_rel == 0)
    # busy is dropped.
    with m.If(~Past(go_die)):
        comb += Assert(busy == 0)


Shouldn't the module drop busy after go_die is asserted? If I delete the
m.If(~Past(go_die)) the proof fails.

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  parent reply index

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-23 22:57 [libre-riscv-dev] [Bug 342] New: " bugzilla-daemon
2020-05-23 22:57 ` [libre-riscv-dev] [Bug 342] " bugzilla-daemon
2020-05-23 22:58 ` bugzilla-daemon
2020-05-23 23:17 ` bugzilla-daemon
2020-05-24 18:16 ` bugzilla-daemon
2020-05-24 18:25 ` bugzilla-daemon
2020-05-24 20:29 ` bugzilla-daemon
2020-05-24 20:40 ` bugzilla-daemon
2020-05-25 19:00 ` bugzilla-daemon
2020-05-25 19:09 ` bugzilla-daemon
2020-05-25 20:56 ` bugzilla-daemon
2020-05-26 17:35 ` bugzilla-daemon [this message]
2020-05-26 17:52 ` bugzilla-daemon

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