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Posted to dev@tuweni.apache.org by Antoine Toulme <an...@toulme.name> on 2021/04/29 07:07:00 UTC
Ethereum Virtual Machine explainer
Hello folks,
Please see here a video I made explaining some of the concepts of the Ethereum Virtual Machine:
https://youtu.be/9fyaDQ55x_E <https://youtu.be/9fyaDQ55x_E>
I hope you enjoy it.
Please let me know if you have any feedback, anything to do differently, what else you’d like to see covered, etc.
Cheers,
Antoine
Re: Ethereum Virtual Machine explainer
Posted by Antoine Toulme <an...@toulme.name>.
Yes. Each byte is an operation. Some operations read and move the cursor.
In this case 0x7f says push32, as in push next 32 bytes as a stack item.
Followed by 0x01 to add, and then more ops.
When you execute tests, it shows the execution order.
> On Apr 30, 2021, at 06:54, nicolas melendez <nf...@gmail.com> wrote:
>
> Hi great video, EVM is a bit more complex than the crawler for sure.
>
> I didn't get about the ops code spec, the berlin hard fork is implemented,
> so for example add0 has it code:
>
> "code" :
> "0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0160005500"
> ,
>
> That code would be a solidity smart contract compiled?
Re: Ethereum Virtual Machine explainer
Posted by Antoine Toulme <an...@toulme.name>.
Yes. Each byte is an operation. Some operations read and move the cursor.
In this case 0x7f says push32, as in push next 32 bytes as a stack item.
Followed by 0x01 to add, and then more ops.
When you execute tests, it shows the execution order.
> On Apr 30, 2021, at 06:54, nicolas melendez <nf...@gmail.com> wrote:
>
> Hi great video, EVM is a bit more complex than the crawler for sure.
>
> I didn't get about the ops code spec, the berlin hard fork is implemented,
> so for example add0 has it code:
>
> "code" :
> "0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0160005500"
> ,
>
> That code would be a solidity smart contract compiled?
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Re: Ethereum Virtual Machine explainer
Posted by nicolas melendez <nf...@gmail.com>.
Hi great video, EVM is a bit more complex than the crawler for sure.
I didn't get about the ops code spec, the berlin hard fork is implemented,
so for example add0 has it code:
"code" :
"0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff0160005500"
,
That code would be a solidity smart contract compiled?