docs: Add storage change status analysis #418
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chfast
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axic
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Sep 6, 2019
holiman
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Sep 6, 2019
docs/storage_change_status.md
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| | Constant | Value | | ||
| | -------- | ----- | | ||
| | SLOAD | 200 | |
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You're using 200 for all of these - but it's 800 no?
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Yes, the unmerged EIP-2200 uses 800, but I wasn't sure the repricing 100% confirmed to go though. The precise value is secondary in the context of this document.
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It did go through, eventually, haha :)
axic
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Sep 19, 2019
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@chfast can this be merged (without any major changes) or this current version is invalid? |
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Rebased. And trying updating it with the final Istanbul numbers. The commits can be squashed. |
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This has doxygen warnings: |
Expand the number of storage statuses to cover all possible EVM behaviors. These provide enough information to VM to compute not only gas costs but also refunds. Including legacy SSTORE costs before net gas metering.
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Naming these is fun...
There are also differences in basic names in EVMC and the EVM spec:
ADDEDvsSET,MODIFIEDvsRESET,DELETEDvsCLEARS.