[WIP; depends on #232] Metropolis: EIP211 Returndata instructions #264
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pirapira
commented
Mar 21, 2017
| \boldsymbol{\mu}_i & \equiv & 0 \\ | ||
| \boldsymbol{\mu}_\mathbf{s} & \equiv & () | ||
| \boldsymbol{\mu}_\mathbf{s} & \equiv & () \\ | ||
| \boldsymbol{\mu}_\mathbf{o} & \equiv & () |
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For clarification, here is the initialization of μₒ.
pirapira
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Mar 21, 2017
| &&&& $(\boldsymbol{\sigma}', g', A^+, \mathbf{o}) \equiv \begin{cases}\begin{array}{l}\Theta(\boldsymbol{\sigma}, I_a, I_o, t, t,\\ \quad C_{\text{\tiny CALLGAS}}(\boldsymbol{\mu}), I_p, \boldsymbol{\mu}_\mathbf{s}[2], \boldsymbol{\mu}_\mathbf{s}[2], \mathbf{i}, I_e + 1)\end{array} & \begin{array}{l}\text{if} \quad \boldsymbol{\mu}_\mathbf{s}[2] \leqslant \boldsymbol{\sigma}[I_a]_b \;\wedge \\ \quad\quad I_e < 1024\end{array}\\ (\boldsymbol{\sigma}, g, \varnothing, ()) & \text{otherwise} \end{cases}$ \\ | ||
| &&&& $n \equiv \min(\{ \boldsymbol{\mu}_\mathbf{s}[6], |\mathbf{o}|\})$ \\ | ||
| &&&& $\boldsymbol{\mu}'_\mathbf{m}[ \boldsymbol{\mu}_\mathbf{s}[5] \dots (\boldsymbol{\mu}_\mathbf{s}[5] + n - 1) ] = \mathbf{o}[0 \dots (n - 1)]$ \\ | ||
| &&&& $\boldsymbol{\mu}'_\mathbf{o} = \mathbf{o}$ \\ |
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... and here is the update of μₒ.
This change is according to ethereum/EIPs#211 (comment)
This was referenced Mar 22, 2017
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pirapira
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pirapira
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May 9, 2017
| &&&& low to fulfil the value transfer); and otherwise $x=A(I_a, \boldsymbol{\sigma}[I_a]_n)$, the address of the newly \\ | ||
| &&&& created account, otherwise. \\ | ||
| &&&& $\boldsymbol{\mu}'_i \equiv M(\boldsymbol{\mu}_i, \boldsymbol{\mu}_\mathbf{s}[1], \boldsymbol{\mu}_\mathbf{s}[2])$ \\ | ||
| &&&& $\boldsymbol{\mu}'_\mathbf{o} \equiv ()$ \\ |
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When the execution ends in REVERT, the output data might be non-empty.
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- The returning data of CREATE can be added after EIP140: REVERT #232 .
pirapira
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pirapira
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even when the accessed length is zero.
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This target should be |
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As part of the Metropolis changes, this PR adds RETURNDATACOPY and RETURNDATASIZE instructions.
Fixes #233