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* TVM v6 * New tuple with unpacked config parameters in c7 * New instructions for calculating fees * Change unpacked_config_tuple, fix typo --------- Co-authored-by: SpyCheese <mikle98@yandex.ru>
80 lines
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3.8 KiB
Markdown
80 lines
No EOL
3.8 KiB
Markdown
# Global versions
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Global version is a parameter specified in `ConfigParam 8` ([block.tlb](https://github.com/ton-blockchain/ton/blob/master/crypto/block/block.tlb#L595)).
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Various features are enabled depending on the global version.
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## Version 4
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### New TVM instructions
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* `PREVMCBLOCKS`, `PREVKEYBLOCK`
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* `GLOBALID`
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* `HASHEXT(A)(R)`
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* `ECRECOVER`
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* `SENDMSG`
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* `RUNVM`, `RUNVMX`
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* `GASCONSUMED`
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* `RIST255_...` instructions
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* `BLS_...` instructions
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* `P256_CHKSIGNS`, `P256_CHKSIGNU`
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### Division
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[Division instruction](https://ton.org/docs/learn/tvm-instructions/instructions#52-division) can add a number to the
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intermediate value before division (e.g. `(xy+w)/z`).
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### Stack operations
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* Arguments of `PICK`, `ROLL`, `ROLLREV`, `BLKSWX`, `REVX`, `DROPX`, `XCHGX`, `CHKDEPTH`, `ONLYTOPX`, `ONLYX` are now unlimited.
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* `ROLL`, `ROLLREV`, `BLKSWX`, `REVX`, `ONLYTOPX` consume more gas when arguments are big.
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### c7 tuple
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**c7** tuple extended from 10 to 14 elements:
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* **10**: code of the smart contract.
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* **11**: value of the incoming message.
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* **12**: fees collected in the storage phase.
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* **13**: information about previous blocks.
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### Action phase
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* If "send message" action fails, the account is required to pay for processing cells of the message.
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* Flag +16 in actions "Send message", "Reserve", "Change library" causes bounce if action fails.
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### Storage phase
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* Unpaid storage fee is now saved to `due_payment`
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## Version 5
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### Gas limits
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Version 5 enables higher gas limits for special contracts.
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* Gas limit for all transactions on special contracts is set to `special_gas_limit` from `ConfigParam 20` (which is 35M at the moment of writing).
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Previously only ticktock transactions had this limit, while ordinary transactions had a default limit of `gas_limit` gas (1M).
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* Gas usage of special contracts is not taken into account when checking block limits. This allows keeping masterchain block limits low
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while having high gas limits for elector.
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* Gas limit on `EQD_v9j1rlsuHHw2FIhcsCFFSD367ldfDdCKcsNmNpIRzUlu` is increased to `special_gas_limit * 2` until 2024-02-29.
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See [this post](https://t.me/tonstatus/88) for details.
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### Loading libraries
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* Loading "nested libraries" (i.e. a library cell that points to another library cell) throws an exception.
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* Loading a library consumes gas for cell load only once (for the library cell), not twice (both for the library cell and the cell in the library).
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* `XLOAD` now works differently. When it takes a library cell, it returns the cell that it points to. This allows loading "nested libraries", if needed.
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## Version 6
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### c7 tuple
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**c7** tuple extended from 14 to 15 elements. The new element is a tuple that contains some config parameters as cell slices.
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If the parameter is absent from the config, the value is null.
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* **0**: `StoragePrices` from `ConfigParam 18`. Not the whole dict, but only the one StoragePrices entry (one which corresponds to the current time).
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* **1**: `ConfigParam 19` (global id).
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* **2**: `ConfigParam 20` (mc gas prices).
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* **3**: `ConfigParam 21` (gas prices).
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* **4**: `ConfigParam 24` (mc fwd fees).
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* **5**: `ConfigParam 25` (fwd fees).
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* **6**: `ConfigParam 43` (size limits).
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### New TVM instructions
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* `GETEXECUTIONPRICE` (`gas_used is_mc - price`) - calculates gas fee.
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* `GETSTORAGEPRICE` (`cells bits seconds is_mc - price`) - calculates storage fees (only current StoragePrices entry is used).
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* `GETFORWARDPRICE` (`cells bits is_mc - price`) - calculates forward fee.
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* `GETPRECOMPILEDGAS` (`- null`) - reserved, currently returns `null`.
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`gas_used`, `cells`, `bits`, `time_delta` are integers in range `0..2^63-1`.
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### Other changes
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* `GLOBALID` gets `ConfigParam 19` from the tuple, not from the config dict. This decreases gas usage.
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* `SENDMSG` gets `ConfigParam 24/25` (message prices) from the tuple, not from the config dict, and also uses `ConfigParam 43` to get max_msg_cells. |