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Merge branch 'master' into Voxelot/intrinsic-costs
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bvrooman committed Dec 1, 2023
2 parents 797ad78 + 0904457 commit 766c941
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2 changes: 1 addition & 1 deletion src/fuel-vm/index.md
Original file line number Diff line number Diff line change
Expand Up @@ -149,7 +149,7 @@ If script bytecode is present, transaction validation requires execution.
The VM is [initialized](#vm-initialization), then:

1. `$pc` and `$is` are set to the start of the transaction's script bytecode.
1. `$ggas` and `$cgas` are set to `tx.gasLimit`.
1. `$ggas` and `$cgas` are set to `tx.scriptGasLimit`.

Following initialization, execution begins.

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13 changes: 6 additions & 7 deletions src/fuel-vm/instruction-set.md
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Expand Up @@ -2450,7 +2450,7 @@ Get [fields from the transaction](../tx-format/transaction.md).
| name | `imm` | set `$rA` to |
|-------------------------------------------|---------|-------------------------------------------------------------------|
| `GTF_TYPE` | `0x001` | `tx.type` |
| `GTF_SCRIPT_GAS_LIMIT` | `0x002` | `tx.gasLimit` |
| `GTF_SCRIPT_GAS_LIMIT` | `0x002` | `tx.scriptGasLimit` |
| `GTF_SCRIPT_SCRIPT_LENGTH` | `0x003` | `tx.scriptLength` |
| `GTF_SCRIPT_SCRIPT_DATA_LENGTH` | `0x004` | `tx.scriptDataLength` |
| `GTF_SCRIPT_INPUTS_COUNT` | `0x005` | `tx.inputsCount` |
Expand Down Expand Up @@ -2516,12 +2516,11 @@ Get [fields from the transaction](../tx-format/transaction.md).
| `GTF_OUTPUT_CONTRACT_CREATED_STATE_ROOT` | `0x308` | Memory address of `tx.outputs[$rB].stateRoot` |
| `GTF_WITNESS_DATA_LENGTH` | `0x400` | `tx.witnesses[$rB].dataLength` |
| `GTF_WITNESS_DATA` | `0x401` | Memory address of `tx.witnesses[$rB].data` |
| `GTF_POLICY_COUNT` | `0x500` | `count_ones(tx.policyTypes)` |
| `GTF_POLICY_TYPE` | `0x501` | `tx.policies[$rB].type` |
| `GTF_POLICY_GAS_PRICE` | `0x502` | `tx.policies[0x00].gasPrice` |
| `GTF_POLICY_WITNESS_LIMIT` | `0x504` | `tx.policies[count_ones(0b11 & tx.policyTypes) - 1].witnessLimit` |
| `GTF_POLICY_MATURITY` | `0x505` | `tx.policies[count_ones(0b111 & tx.policyTypes) - 1].maturity` |
| `GTF_POLICY_MAX_FEE` | `0x506` | `tx.policies[count_ones(0b1111 & tx.policyTypes) - 1].maxFee` |
| `GTF_POLICY_TYPES` | `0x500` | `tx.policies.policyTypes` |
| `GTF_POLICY_GAS_PRICE` | `0x501` | `tx.policies[0x00].gasPrice` |
| `GTF_POLICY_WITNESS_LIMIT` | `0x502` | `tx.policies[count_ones(0b11 & tx.policyTypes) - 1].witnessLimit` |
| `GTF_POLICY_MATURITY` | `0x503` | `tx.policies[count_ones(0b111 & tx.policyTypes) - 1].maturity` |
| `GTF_POLICY_MAX_FEE` | `0x504` | `tx.policies[count_ones(0b1111 & tx.policyTypes) - 1].maxFee` |

Panic if:

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39 changes: 21 additions & 18 deletions src/tx-format/transaction.md
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Expand Up @@ -55,23 +55,24 @@ enum ReceiptType : uint8 {
}
```

| name | type | description |
|--------------------|-----------------------------|------------------------------------------------------|
| `gasLimit` | `uint64` | Gas limit for transaction (including predicate gas). |
| `scriptLength` | `uint16` | Script length, in instructions. |
| `scriptDataLength` | `uint16` | Length of script input data, in bytes. |
| `policyTypes` | `uint32` | Bitfield of used policy types. |
| `inputsCount` | `uint8` | Number of inputs. |
| `outputsCount` | `uint8` | Number of outputs. |
| `witnessesCount` | `uint8` | Number of witnesses. |
| `receiptsRoot` | `byte[32]` | Merkle root of receipts. |
| `script` | `byte[]` | Script to execute. |
| `scriptData` | `byte[]` | Script input data (parameters). |
| `policies` | [Policy](./policy.md)`[]` | List of policies, sorted by PolicyType. |
| `inputs` | [Input](./input.md)`[]` | List of inputs. |
| `outputs` | [Output](./output.md)`[]` | List of outputs. |
| `witnesses` | [Witness](./witness.md)`[]` | List of witnesses. |

| name | type | description |
|--------------------|-----------------------------|-----------------------------------------|
| `scriptGasLimit` | `uint64` | Gas limits the script execution. |
| `scriptLength` | `uint16` | Script length, in instructions. |
| `scriptDataLength` | `uint16` | Length of script input data, in bytes. |
| `policyTypes` | `uint32` | Bitfield of used policy types. |
| `inputsCount` | `uint8` | Number of inputs. |
| `outputsCount` | `uint8` | Number of outputs. |
| `witnessesCount` | `uint8` | Number of witnesses. |
| `receiptsRoot` | `byte[32]` | Merkle root of receipts. |
| `script` | `byte[]` | Script to execute. |
| `scriptData` | `byte[]` | Script input data (parameters). |
| `policies` | [Policy](./policy.md)`[]` | List of policies, sorted by PolicyType. |
| `inputs` | [Input](./input.md)`[]` | List of inputs. |
| `outputs` | [Output](./output.md)`[]` | List of outputs. |
| `witnesses` | [Witness](./witness.md)`[]` | List of witnesses. |

Given helper `max_gas()` returns the maximum gas that the transaction can use.
Given helper `len()` that returns the number of bytes of a field.
Given helper `count_ones()` that returns the number of ones in the binary representation of a field.
Given helper `count_variants()` that returns the number of variants in an enum.
Expand All @@ -85,7 +86,7 @@ Transaction is invalid if:
- `scriptDataLength > MAX_SCRIPT_DATA_LENGTH`
- `scriptLength * 4 != len(script)`
- `scriptDataLength != len(scriptData)`
- `gasLimit > MAX_GAS_PER_TX`
- `max_gas(tx) > MAX_GAS_PER_TX`
- No policy of type `PolicyType.GasPrice`
- `count_ones(policyTypes) > count_variants(PolicyType)`
- `policyTypes > sum_variants(PolicyType)`
Expand Down Expand Up @@ -117,6 +118,7 @@ The receipts root `receiptsRoot` is the root of the [binary Merkle tree](../prot
| `outputs` | [Output](./output.md)`[]` | List of outputs. |
| `witnesses` | [Witness](./witness.md)`[]` | List of witnesses. |

Given helper `max_gas()` returns the maximum gas that the transaction can use.
Given helper `count_ones()` that returns the number of ones in the binary representation of a field.
Given helper `count_variants()` that returns the number of variants in an enum.
Given helper `sum_variants()` that sums all variants of an enum.
Expand All @@ -134,6 +136,7 @@ Transaction is invalid if:
- The keys of `storageSlots` are not in ascending lexicographic order
- The computed contract ID (see below) is not equal to the `contractID` of the one `OutputType.ContractCreated` output
- `storageSlotsCount > MAX_STORAGE_SLOTS`
- `max_gas(tx) > MAX_GAS_PER_TX`
- The [Sparse Merkle tree](../protocol/cryptographic-primitives.md#sparse-merkle-tree) root of `storageSlots` is not equal to the `stateRoot` of the one `OutputType.ContractCreated` output
- No policy of type `PolicyType.GasPrice`
- `count_ones(policyTypes) > count_variants(PolicyType)`
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