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Add infrastructure for precompiled smartcontracts (#927)

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* Utils for writing precompiled contracts

* Precompiled contracts in config, override gas_usage for them

* Add base class for precompiled contracts

* Improve utils for precompiled smc

* Implement GETPRECOMPILEDGAS

* Enable precompiles by flag

* Process null data in PrecompiledSmartContract

* Fix ton_block wasm build

* Fix vm::util::store_(u)long

---------

Co-authored-by: SpyCheese <mikle98@yandex.ru>
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EmelyanenkoK 2024-03-05 16:54:49 +03:00 • committed by GitHub
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5
doc/GlobalVersions.md
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@ -58,7 +58,7 @@ See [this post](https://t.me/tonstatus/88) for details.
## Version 6
### c7 tuple
**c7** tuple extended from 14 to 16 elements:
**c7** tuple extended from 14 to 17 elements:
* **14**: tuple that contains some config parameters as cell slices. If the parameter is absent from the config, the value is null. Asm opcode: `UNPACKEDCONFIGTUPLE`.
* **0**: `StoragePrices` from `ConfigParam 18`. Not the whole dict, but only the one StoragePrices entry (one which corresponds to the current time).
* **1**: `ConfigParam 19` (global id).
@ -68,6 +68,7 @@ See [this post](https://t.me/tonstatus/88) for details.
* **5**: `ConfigParam 25` (fwd fees).
* **6**: `ConfigParam 43` (size limits).
* **15**: "[due payment](https://github.com/ton-blockchain/ton/blob/8a9ff339927b22b72819c5125428b70c406da631/crypto/block/block.tlb#L237)" - current debt for storage fee (nanotons). Asm opcode: `DUEPAYMENT`.
* **16**: "precompiled gas usage" - gas usage for the current contract if it is precompiled (see `ConfigParam 45`), `null` otherwise. Asm opcode: `GETPRECOMPILEDGAS`.
### New TVM instructions
@ -75,7 +76,7 @@ See [this post](https://t.me/tonstatus/88) for details.
* `GETGASFEE` (`gas_used is_mc - price`) - calculates gas fee.
* `GETSTORAGEFEE` (`cells bits seconds is_mc - price`) - calculates storage fees (only current StoragePrices entry is used).
* `GETFORWARDFEE` (`cells bits is_mc - price`) - calculates forward fee.
* `GETPRECOMPILEDGAS` (`- null`) - reserved, currently returns `null`.
* `GETPRECOMPILEDGAS` (`- x`) - returns gas usage for the current contract if it is precompiled, `null` otherwise.
* `GETORIGINALFWDFEE` (`fwd_fee is_mc - orig_fwd_fee`) - calculate `fwd_fee * 2^16 / first_frac`. Can be used to get the original `fwd_fee` of the message.
* `GETGASFEESIMPLE` (`gas_used is_mc - price`) - same as `GETGASFEE`, but without flat price (just `(gas_used * price) / 2^16`).
* `GETFORWARDFEESIMPLE` (`cells bits is_mc - price`) - same as `GETFORWARDFEE`, but without lump price (just `(bits*bit_price + cells*cell_price) / 2^16`).