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Create eth_call.md #55

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12 changes: 12 additions & 0 deletions src/description/eth_call.md
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* **MUST NOT** affect on-chain state

* **MUST** allow a `from` parameter that does not exist on-chain and if `from` is not defined it **MUST** be interpreted as `0x0000000000000000000000000000000000000000`

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What happens if the from account is not an EOA?

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@DockBoss DockBoss Aug 25, 2021

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Playing around with different from addresses I found that as long as it a 20 byte hex string the behavior is the same.



* If the `to` is null or not defined on-chain and there is no `data` parameter it **MUST** return an empty hex string

* If the `gasPrice` parameter is used it **MUST** interpret it as the `maxFeePerGas` and `maxPriorityFeePerGas` both equal to the value of the `gasPrice` parameter or 0 when `gasPrice` is null

* **MUST** consider gas to equal 80000000 if the `gas` parameter is equal to `null`

* If any non-zero fee or `value` is provided the `from` account balance **MUST** be checked to ensure account has enough funds, in the case that the account has insufficient funds it **MUST** error.