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From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
To: Libre-RISCV General Development <libre-riscv-dev@lists.libre-riscv.org>
Subject: Re: [libre-riscv-dev] memory interface diagram woes
Date: Tue, 28 Apr 2020 17:30:18 +0100
Message-ID: <CAPweEDxr-xS_1WHa4U=-MkErRCdX_BCY4Rgvh+2XH8msmwmyJg@mail.gmail.com> (raw)
In-Reply-To: <CAPweEDzavTqZ-_cw7BtHNHwnAHXjJX=xC29cX9cY4cRWTnerUQ@mail.gmail.com>

aw god this isn't funny any more! (actually... it is).  there's a
store-with-update that's separate from load-with-update.  so there are
*four* combinations:

* LD Mode will activate Issue, GoRead1, GoAddr then GoWrite1
* LD-UPDATE Mode will *additionally* activate GoWrite2.
* ST Mode will activate Issue, GoRead1, GoRead2, GoAddr then GoStore.
  ST-UPDATE Mode will *additionally* activate GoWrite2.

i might be able to recover the current diagram without rewriting it.

l.

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Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-23  6:49 Jacob Lifshay
2020-04-23  9:02 ` Luke Kenneth Casson Leighton
2020-04-23 10:29   ` Luke Kenneth Casson Leighton
2020-04-23 14:37     ` Luke Kenneth Casson Leighton
2020-04-26 12:27 ` Luke Kenneth Casson Leighton
2020-04-27  6:06   ` Jacob Lifshay
2020-04-27 10:07     ` Luke Kenneth Casson Leighton
2020-04-27 10:25       ` Luke Kenneth Casson Leighton
2020-04-27 12:38         ` Luke Kenneth Casson Leighton
     [not found]           ` <CAPweEDwtjksKH3odd0gfeBbLhVVPm=KD3auoihJq4X+-ROOg6g@mail.gmail.com>
2020-04-28 13:33             ` whygee
2020-04-28 14:26               ` Luke Kenneth Casson Leighton
2020-04-28 14:38                 ` Jacob Lifshay
2020-04-28 14:43                   ` Luke Kenneth Casson Leighton
2020-04-28 14:53                     ` [libre-riscv-dev] circuitjs Jacob Lifshay
2020-04-28 15:03                       ` Luke Kenneth Casson Leighton
2020-04-28 15:10                         ` Jacob Lifshay
2020-04-28 15:35                           ` Luke Kenneth Casson Leighton
2020-04-28 19:37                             ` [libre-riscv-dev] HTTaP and Design for Test (was Re: circuitjs) whygee
2020-04-28 19:10                       ` [libre-riscv-dev] circuitjs whygee
2020-04-28 15:28                     ` [libre-riscv-dev] memory interface diagram woes Luke Kenneth Casson Leighton
2020-04-28 16:30                       ` Luke Kenneth Casson Leighton [this message]
2020-04-29 15:10                         ` Luke Kenneth Casson Leighton

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