[libre-riscv-dev] daily kan-ban update 04jun2020

[libre-riscv-dev] daily kan-ban update 04jun2020

[Luke Kenneth Casson Leighton]

yesterday:

* brief review of Cole's TRAP pipeline work (looks good, more comments added)
* helped Jacob point in right direction (int div pipeline stages
needed, FP is out)
* converted some more MultiCompUnit unit tests to shared code with
test_pipe_caller(s)
* started on a "Simple" (brain-dead) core and connecting up read-ports

morning:

* investigating sorting out internet connectivity.  currently have to
bypass ISP HTTPS traffic blocks by using an HTTPS proxy over a VPN
(!).  the majority of major web sites (zoom, accounts.google.com,
instagram)

* connecting up write-ports to brain-dead core.

today:

* checking the new brain-dead core and running a first unit test
against it, see if it actually reads/writes to/from regfiles.

l.

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Re: [libre-riscv-dev] daily kan-ban update 04jun2020

[Luke Kenneth Casson Leighton]

On Thu, Jun 4, 2020 at 1:10 PM Luke Kenneth Casson Leighton
<lkcl@lkcl.net> wrote:

> * checking the new brain-dead core and running a first unit test
> against it, see if it actually reads/writes to/from regfiles.

it does actually read and write regfiles.  tested with ALU operations
as well as Logical ones, so far.

l.

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Re: [libre-riscv-dev] daily kan-ban update 04jun2020

[Tobias Platen]

morning: thinking ways how to implement DualPortSplitter

rest of the day: looking into the new NonProductionCore class and its test case

tomorrow: implement DualPortSplitter

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Re: [libre-riscv-dev] daily kan-ban update 04jun2020

[Luke Kenneth Casson Leighton]

On Thu, Jun 4, 2020 at 4:00 PM Tobias Platen
<libre-soc@platen-software.de> wrote:
>
> morning: thinking ways how to implement DualPortSplitter

it's already partly implemented by LDSTSplitter.

i need to focus on debugging at the moment, i'll be able to
context-switch to this tomorrow.

l.

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Re: [libre-riscv-dev] daily kan-ban update 04jun2020

[Jacob Lifshay]

On Thu, Jun 4, 2020, 05:11 Luke Kenneth Casson Leighton <lkcl@lkcl.net>
wrote:

> * investigating sorting out internet connectivity.  currently have to
> bypass ISP HTTPS traffic blocks by using an HTTPS proxy over a VPN
> (!).  the majority of major web sites (zoom, accounts.google.com,
> instagram)
>

wow! would motivate me to get a different ISP if possible, that's garbage
tier service if that's not just a temporary problem.

today:
work on div and mul pipelines
read through cxxrtl yosys backend that whitequark's been writing, found a
bug:
https://github.com/YosysHQ/yosys/issues/2111

attending OpenPower virtual coffee meeting later

Jacob
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Re: [libre-riscv-dev] daily kan-ban update 04jun2020

[Luke Kenneth Casson Leighton]

On Thursday, June 4, 2020, Jacob Lifshay <programmerjake@gmail.com> wrote:

> On Thu, Jun 4, 2020, 05:11 Luke Kenneth Casson Leighton <lkcl@lkcl.net>
> wrote:
>
> > * investigating sorting out internet connectivity.  currently have to
> > bypass ISP HTTPS traffic blocks by using an HTTPS proxy over a VPN
> > (!).  the majority of major web sites (zoom, accounts.google.com,
> > instagram)
> >
>
> wow! would motivate me to get a different ISP if possible, that's garbage
> tier service if that's not just a temporary problem.
>
>
the timing is exactly when you also had issues.

they are GBP 20 a month for unlimited data, on mobile 4G/LTE.

the data usage in our house is over 200MB a month.

it would cost us well over USD 150 a month by any other provider.

there is no hardline and it is not my house.



> today:
> work on div and mul pipelines


great.  i have the dumb-core operational (no instruction fetch, no LDST),
so when they're ready they can drop straight in.



> read through cxxrtl yosys backend that whitequark's been writing, found a
> bug:
> https://github.com/YosysHQ/yosys/issues/2111


cool.  that's some complex code.


> attending OpenPower virtual coffee meeting later


ah it's not running tonight.  hugh has a scheduling conflict.

next week.

l.



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Re: [libre-riscv-dev] daily kan-ban update 04jun2020

[Yehowshua]

> On Jun 4, 2020, at 3:02 PM, Luke Kenneth Casson Leighton <lkcl@lkcl.net> wrote:
> 
> the timing is exactly when you also had issues.
> 
> they are GBP 20 a month for unlimited data, on mobile 4G/LTE.
> 
> the data usage in our house is over 200MB a month.
> 
> it would cost us well over USD 150 a month by any other provider.
> 
> there is no hardline and it is not my house.

Fortunately for you, Elon Musk is planning to launch Stalins
this winter. Merry Christmas.

Yehowshua
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Re: [libre-riscv-dev] daily kan-ban update 04jun2020

[Yehowshua]

**starlink

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Re: [libre-riscv-dev] daily kan-ban update 04jun2020

[Luke Kenneth Casson Leighton]

On Thursday, June 4, 2020, Yehowshua <yimmanuel3@gatech.edu> wrote:

> **starlink


you were probably right the first time :)

i heard that people were shooting down google blimps, hacking the hardware
to get it to serve *their* local community needs, patching up the holes and
sending them back up.

can't exactly do that with a satellite, oh well

l.



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Re: [libre-riscv-dev] daily kan-ban update 04jun2020

[Cole Poirier]

On Jun 4 2020, at 5:10 am, Luke Kenneth Casson Leighton <lkcl@lkcl.net> wrote:
> yesterday:
> 
> * brief review of Cole's TRAP pipeline work (looks good, more comments added)

Thanks Luke, it's really helping me get work done and make progress each
day, and hopefully being able to do so a bit more independently than
last week.

Today:

Review Luke's comments and TODOs in TRAP pipeline, implement required changes.

Cole

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