Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

feat(avm): link up storage #4150

Merged
merged 20 commits into from
Jan 25, 2024
Merged

feat(avm): link up storage #4150

merged 20 commits into from
Jan 25, 2024

Conversation

Maddiaa0
Copy link
Member

@Maddiaa0 Maddiaa0 commented Jan 19, 2024

  • Implements the storage opcodes

  • Introduces the Execution Environment Container from the yp - this contains readonly vars that are fixed during execution ( required to get the storage address for storage / state updates )

  • as the journal handles the storage reads and writes, the opcode test just tests that calls to the underlying structure are made correctly

fixes: #4122

Base automatically changed from md/01-18-feat_avm_better_field_arithmetic to master January 19, 2024 10:01
@Maddiaa0 Maddiaa0 force-pushed the md/01-18-feat_avm_link_up_storage branch from 0b39a36 to 17a2005 Compare January 19, 2024 10:21
@AztecBot
Copy link
Collaborator

AztecBot commented Jan 19, 2024

Benchmark results

Metrics with a significant change:

  • note_trial_decrypting_time_in_ms (32): 30.1 (-76%)
Detailed results

All benchmarks are run on txs on the Benchmarking contract on the repository. Each tx consists of a batch call to create_note and increment_balance, which guarantees that each tx has a private call, a nested private call, a public call, and a nested public call, as well as an emitted private note, an unencrypted log, and public storage read and write.

This benchmark source data is available in JSON format on S3 here.

Values are compared against data from master at commit 18581265 and shown if the difference exceeds 1%.

L2 block published to L1

Each column represents the number of txs on an L2 block published to L1.

Metric 8 txs 32 txs 128 txs
l1_rollup_calldata_size_in_bytes 45,412 179,524 716,068
l1_rollup_calldata_gas 221,596 866,776 3,448,624
l1_rollup_execution_gas 314,015 984,448 3,668,213
l2_block_processing_time_in_ms 1,410 (+1%) 5,327 (+1%) 20,934
note_successful_decrypting_time_in_ms 238 803 (+1%) 3,203 (+2%)
note_trial_decrypting_time_in_ms 48.8 (+5%) ⚠️ 30.1 (-76%) 154 (+4%)
l2_block_building_time_in_ms 16,159 64,153 256,670
l2_block_rollup_simulation_time_in_ms 11,774 46,754 187,450
l2_block_public_tx_process_time_in_ms 4,350 17,312 68,930

L2 chain processing

Each column represents the number of blocks on the L2 chain where each block has 16 txs.

Metric 5 blocks 10 blocks
node_history_sync_time_in_ms 16,047 30,703 (+1%)
note_history_successful_decrypting_time_in_ms 1,927 (-2%) 3,910 (+2%)
note_history_trial_decrypting_time_in_ms 135 229 (-8%)
node_database_size_in_bytes 3,586,630 3,629,659
pxe_database_size_in_bytes 29,923 59,478

Circuits stats

Stats on running time and I/O sizes collected for every circuit run across all benchmarks.

Circuit circuit_simulation_time_in_ms circuit_input_size_in_bytes circuit_output_size_in_bytes
private-kernel-init 213 (-1%) 44,681 25,561
private-kernel-ordering 165 (-1%) 43,753 14,809
base-rollup 1,200 (-1%) 128,338 881
root-rollup 81.1 4,088 677
private-kernel-inner 291 (-2%) 71,208 25,561
public-kernel-private-input 206 (-1%) 31,863 25,561
public-kernel-non-first-iteration 203 (-1%) 31,905 25,561
merge-rollup 7.67 2,608 881

Tree insertion stats

The duration to insert a fixed batch of leaves into each tree type.

Metric 1 leaves 2 leaves 8 leaves 16 leaves 32 leaves 128 leaves 64 leaves 512 leaves 1024 leaves 2048 leaves 8192 leaves
batch_insert_into_append_only_tree_16_depth_ms 12.2 (+1%) 19.8 (+6%) 17.5 (+22%) 19.8 (-3%) 23.6 (-9%) 67.1 N/A N/A N/A N/A N/A
batch_insert_into_append_only_tree_16_depth_hash_count 16.9 17.5 23.0 31.6 47.0 143 N/A N/A N/A N/A N/A
batch_insert_into_append_only_tree_16_depth_hash_ms 0.627 (+1%) 0.641 (-3%) 0.705 (+21%) 0.549 (-1%) 0.480 (-1%) 0.445 N/A N/A N/A N/A N/A
batch_insert_into_append_only_tree_32_depth_ms N/A N/A N/A N/A N/A 89.2 (+1%) 52.7 (+2%) 257 (+1%) 481 920 (+1%) 3,579
batch_insert_into_append_only_tree_32_depth_hash_count N/A N/A N/A N/A N/A 159 96.0 543 1,055 2,079 8,223
batch_insert_into_append_only_tree_32_depth_hash_ms N/A N/A N/A N/A N/A 0.501 (+1%) 0.504 (+1%) 0.445 (+1%) 0.436 0.431 0.428
batch_insert_into_indexed_tree_20_depth_ms N/A N/A N/A N/A N/A 119 (+2%) 63.2 (+1%) 373 (+1%) 766 1,450 (+2%) 5,659
batch_insert_into_indexed_tree_20_depth_hash_count N/A N/A N/A N/A N/A 197 104 691 1,363 2,707 10,771
batch_insert_into_indexed_tree_20_depth_hash_ms N/A N/A N/A N/A N/A 0.511 (+3%) 0.507 0.480 (+1%) 0.482 (-1%) 0.476 (+1%) 0.474
batch_insert_into_indexed_tree_40_depth_ms N/A N/A N/A 67.9 N/A N/A N/A N/A N/A N/A N/A
batch_insert_into_indexed_tree_40_depth_hash_count N/A N/A N/A 94.1 N/A N/A N/A N/A N/A N/A N/A
batch_insert_into_indexed_tree_40_depth_hash_ms N/A N/A N/A 0.599 N/A N/A N/A N/A N/A N/A N/A

Miscellaneous

Transaction sizes based on how many contracts are deployed in the tx.

Metric 0 deployed contracts 1 deployed contracts
tx_size_in_bytes 15,455 32,222

Transaction processing duration by data writes.

Metric 0 new commitments 1 new commitments
tx_pxe_processing_time_ms 377 1,086 (-1%)
Metric 1 public data writes
tx_sequencer_processing_time_ms 535 (-1%)

@Maddiaa0 Maddiaa0 force-pushed the md/01-18-feat_avm_link_up_storage branch from 202fb78 to 4521d6d Compare January 23, 2024 17:17
* Items like, the block header and global variables fall within this category
*/
public readonly executionEnvironment: AvmExecutionEnvironment;

/** - */
public readonly calldata: Fr[];
Copy link
Contributor

@fcarreiro fcarreiro Jan 24, 2024

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Calldata seems to be both here and in the environment, is that expected/needed?

Copy link
Member Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

In conversations with David I originally deemed that it should be separate from the execution environment, but the more I think about it, it fits the readonly nature of the rest of executionEnvironment, so i will move it in and push

Copy link
Contributor

@dbanks12 dbanks12 left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

LGTM

@Maddiaa0 Maddiaa0 enabled auto-merge (squash) January 25, 2024 21:15
@Maddiaa0 Maddiaa0 merged commit 3e86870 into master Jan 25, 2024
80 of 82 checks passed
@Maddiaa0 Maddiaa0 deleted the md/01-18-feat_avm_link_up_storage branch January 25, 2024 21:25
rahul-kothari pushed a commit that referenced this pull request Jan 30, 2024
🤖 I have created a release *beep* *boop*
---


<details><summary>aztec-packages: 0.21.0</summary>

##
[0.21.0](aztec-packages-v0.20.0...aztec-packages-v0.21.0)
(2024-01-30)


### ⚠ BREAKING CHANGES

* aztec binary
([#3927](#3927))
* add opcode for sha256 compression function
([#4229](#4229))
* add opcode for poseidon2 permutation
([#4214](#4214))
* remove ec_double opcode
([#4210](#4210))
* Updates singleton usage
([#4186](#4186))
* Add big int opcodes (without implementation)
([#4050](#4050))

### Features

* **3738:** AVM basic arithmetic operations for non ff types
([#3881](#3881))
([457a3f9](457a3f9)),
closes
[#3996](#3996)
* Accrued substate instructions
([#4197](#4197))
([bfe30d2](bfe30d2))
* Add big int opcodes (without implementation)
([#4050](#4050))
([bcab9ce](bcab9ce))
* Add comparators to get/view note
([#3136](#3136))
([#4205](#4205))
([6de36b3](6de36b3))
* Add inclusion check l1-&gt;l2
([#4141](#4141))
([bef65c3](bef65c3))
* Add opcode for poseidon2 permutation
([#4214](#4214))
([53c5ba5](53c5ba5))
* Add opcode for sha256 compression function
([#4229](#4229))
([ac25ff7](ac25ff7))
* Adding slither to l1-contracts
([#4226](#4226))
([b4dc31d](b4dc31d))
* **avm:** Add tests for memory and bitwise instructions
([#4184](#4184))
([6dac650](6dac650))
* **avm:** Bytecode avm control flow
([#4253](#4253))
([fb1d742](fb1d742)),
closes
[#4209](#4209)
* **avm:** Bytecode parsing and proof generation
([#4191](#4191))
([6c70548](6c70548)),
closes
[#3791](#3791)
* **avm:** Environment getters
([#4203](#4203))
([60d2377](60d2377))
* **avm:** Implement comparator opcodes
([#4232](#4232))
([973ff2f](973ff2f))
* **avm:** Initial external calls
([#4194](#4194))
([d8aa966](d8aa966))
* **avm:** Link up storage
([#4150](#4150))
([3e86870](3e86870))
* **avm:** Revert instruction
([#4206](#4206))
([bd6e797](bd6e797))
* **avm:** Tagged memory
([#4213](#4213))
([e5ff2f6](e5ff2f6))
* Aztec binary
([#3927](#3927))
([12356d9](12356d9))
* Contract classes and instances
([#4192](#4192))
([1858126](1858126)),
closes
[#4053](#4053)
* Deserialize AztecAddress when contract's view function returns it in
Aztec.js
[#3641](#3641)
([#4224](#4224))
([11f400f](11f400f))
* **docs:** DIP1: Extract Explanations
([#4228](#4228))
([3b25737](3b25737))
* **docs:** Historical trees docs
([#3895](#3895))
([8c3efba](8c3efba))
* **docs:** PXE docs
([#4021](#4021))
([a656034](a656034))
* Implement bigint in Noir, using bigint opcodes
([#4198](#4198))
([3720415](3720415))
* Implement Embedded EC add and double opcodes
([#3982](#3982))
([ccb7bff](ccb7bff))
* Limit exposed functions on note utils
([#4207](#4207))
([8338f39](8338f39))
* Nullifier key validation
([#4176](#4176))
([1c72c0d](1c72c0d))
* Produce graph of internal Barretenberg dependencies
([#4225](#4225))
([88e7923](88e7923))
* Recursive folding and decider verifier for Protogalaxy
([#4156](#4156))
([9342048](9342048))
* Remove ec_double opcode
([#4210](#4210))
([75f26c4](75f26c4))
* Replace single bit range constraints with basic bool gates
([#4164](#4164))
([0a3553b](0a3553b))
* Updates singleton usage
([#4186](#4186))
([301f0e6](301f0e6))


### Bug Fixes

* **avm:** Fix usage of Fr with tagged memory
([#4240](#4240))
([b82e70c](b82e70c))
* **bb:** .gitignore
([#4201](#4201))
([a56e418](a56e418))
* **docs:** Add missing deps to token tutorial references
([#4265](#4265))
([d7e2d9c](d7e2d9c))
* Generic Honk dependencies
([#4239](#4239))
([382dfbe](382dfbe))


### Miscellaneous

* Add note getter test to cci
([#4236](#4236))
([e1184ff](e1184ff))
* **avm-simulator:** Cleanup, tags as first instruction constructor args
([#4244](#4244))
([e46b865](e46b865))
* **avm:** Remove the state manager in favour of journal
([#4195](#4195))
([40f9324](40f9324))
* **bb:** Rearrange namespaces
([#4147](#4147))
([5de0a8e](5de0a8e))
* Cleaning up circuits test setup
([#4235](#4235))
([fa6915a](fa6915a)),
closes
[#4237](#4237)
* Delete C++ PK circuits
([#4219](#4219))
([9136d32](9136d32))
* Delete MemoryDB
([#4241](#4241))
([9e6250a](9e6250a))
* **docs:** Fix a few links to docs
([#4260](#4260))
([1c8ea49](1c8ea49))
* **docs:** Fix autogen docs
([#4261](#4261))
([3b9927a](3b9927a))
* **docs:** Fix public and private storage not in docs
([#4257](#4257))
([48ceafd](48ceafd))
* **docs:** Fix token bridge tutorial
([#3935](#3935))
([84c9fdb](84c9fdb))
* **docs:** Split contract storage pages
([#4202](#4202))
([1e05f33](1e05f33))
* Fix typo in yellow paper
([#4247](#4247))
([ac82e6b](ac82e6b))
* Fixes test file from
[#4205](#4205)
([#4216](#4216))
([18a9b72](18a9b72))
* Git subrepo pull (merge) noir
([#4252](#4252))
([80be57d](80be57d))
* Nuking old `BlockHeader`
([#4154](#4154))
([997791a](997791a)),
closes
[#3937](#3937)
[#3564](#3564)
[#4134](#4134)
* Remove flaky e2e p2p test
([#4181](#4181))
([688e4af](688e4af))
* Remove mandatory jsdoc
([#4180](#4180))
([9625b43](9625b43)),
closes
[#3860](#3860)
* Remove stubbed docs
([#4196](#4196))
([25a4bc4](25a4bc4))
* Replace leveldb with lmdb for merkle trees
([#4119](#4119))
([84967b2](84967b2)),
closes
[#3362](#3362)
* Replace relative paths to noir-protocol-circuits
([a9839a8](a9839a8))
* Replace relative paths to noir-protocol-circuits
([2ef6e56](2ef6e56))
* Replace relative paths to noir-protocol-circuits
([426c17d](426c17d))
* Replace relative paths to noir-protocol-circuits
([12adb71](12adb71))
* Replace relative paths to noir-protocol-circuits
([fcd048d](fcd048d))
* Unifying Header serialization accross domains
([#4230](#4230))
([92080a0](92080a0))
* Update .gitrepo with correct parent hash
([#4279](#4279))
([9253c8a](9253c8a))


### Documentation

* **bb:** How to use docker_interactive.sh
([#4220](#4220))
([f44c6b1](f44c6b1))
* Update welcome page and dev pages
([#4143](#4143))
([d2a86ff](d2a86ff))
</details>

<details><summary>barretenberg.js: 0.21.0</summary>

##
[0.21.0](barretenberg.js-v0.20.0...barretenberg.js-v0.21.0)
(2024-01-30)


### Miscellaneous

* **barretenberg.js:** Synchronize aztec-packages versions
</details>

<details><summary>barretenberg: 0.21.0</summary>

##
[0.21.0](barretenberg-v0.20.0...barretenberg-v0.21.0)
(2024-01-30)


### ⚠ BREAKING CHANGES

* add opcode for sha256 compression function
([#4229](#4229))
* add opcode for poseidon2 permutation
([#4214](#4214))
* remove ec_double opcode
([#4210](#4210))
* Add big int opcodes (without implementation)
([#4050](#4050))

### Features

* **3738:** AVM basic arithmetic operations for non ff types
([#3881](#3881))
([457a3f9](457a3f9)),
closes
[#3996](#3996)
* Add big int opcodes (without implementation)
([#4050](#4050))
([bcab9ce](bcab9ce))
* Add opcode for poseidon2 permutation
([#4214](#4214))
([53c5ba5](53c5ba5))
* Add opcode for sha256 compression function
([#4229](#4229))
([ac25ff7](ac25ff7))
* **avm:** Bytecode avm control flow
([#4253](#4253))
([fb1d742](fb1d742)),
closes
[#4209](#4209)
* **avm:** Bytecode parsing and proof generation
([#4191](#4191))
([6c70548](6c70548)),
closes
[#3791](#3791)
* Implement Embedded EC add and double opcodes
([#3982](#3982))
([ccb7bff](ccb7bff))
* Produce graph of internal Barretenberg dependencies
([#4225](#4225))
([88e7923](88e7923))
* Recursive folding and decider verifier for Protogalaxy
([#4156](#4156))
([9342048](9342048))
* Remove ec_double opcode
([#4210](#4210))
([75f26c4](75f26c4))
* Replace single bit range constraints with basic bool gates
([#4164](#4164))
([0a3553b](0a3553b))


### Bug Fixes

* **bb:** .gitignore
([#4201](#4201))
([a56e418](a56e418))
* Generic Honk dependencies
([#4239](#4239))
([382dfbe](382dfbe))


### Miscellaneous

* **bb:** Rearrange namespaces
([#4147](#4147))
([5de0a8e](5de0a8e))
* Delete C++ PK circuits
([#4219](#4219))
([9136d32](9136d32))


### Documentation

* **bb:** How to use docker_interactive.sh
([#4220](#4220))
([f44c6b1](f44c6b1))
</details>

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).
AztecBot added a commit to AztecProtocol/barretenberg that referenced this pull request Jan 31, 2024
🤖 I have created a release *beep* *boop*
---


<details><summary>aztec-packages: 0.21.0</summary>

##
[0.21.0](AztecProtocol/aztec-packages@aztec-packages-v0.20.0...aztec-packages-v0.21.0)
(2024-01-30)


### ⚠ BREAKING CHANGES

* aztec binary
([#3927](AztecProtocol/aztec-packages#3927))
* add opcode for sha256 compression function
([#4229](AztecProtocol/aztec-packages#4229))
* add opcode for poseidon2 permutation
([#4214](AztecProtocol/aztec-packages#4214))
* remove ec_double opcode
([#4210](AztecProtocol/aztec-packages#4210))
* Updates singleton usage
([#4186](AztecProtocol/aztec-packages#4186))
* Add big int opcodes (without implementation)
([#4050](AztecProtocol/aztec-packages#4050))

### Features

* **3738:** AVM basic arithmetic operations for non ff types
([#3881](AztecProtocol/aztec-packages#3881))
([457a3f9](AztecProtocol/aztec-packages@457a3f9)),
closes
[#3996](AztecProtocol/aztec-packages#3996)
* Accrued substate instructions
([#4197](AztecProtocol/aztec-packages#4197))
([bfe30d2](AztecProtocol/aztec-packages@bfe30d2))
* Add big int opcodes (without implementation)
([#4050](AztecProtocol/aztec-packages#4050))
([bcab9ce](AztecProtocol/aztec-packages@bcab9ce))
* Add comparators to get/view note
([#3136](AztecProtocol/aztec-packages#3136))
([#4205](AztecProtocol/aztec-packages#4205))
([6de36b3](AztecProtocol/aztec-packages@6de36b3))
* Add inclusion check l1-&gt;l2
([#4141](AztecProtocol/aztec-packages#4141))
([bef65c3](AztecProtocol/aztec-packages@bef65c3))
* Add opcode for poseidon2 permutation
([#4214](AztecProtocol/aztec-packages#4214))
([53c5ba5](AztecProtocol/aztec-packages@53c5ba5))
* Add opcode for sha256 compression function
([#4229](AztecProtocol/aztec-packages#4229))
([ac25ff7](AztecProtocol/aztec-packages@ac25ff7))
* Adding slither to l1-contracts
([#4226](AztecProtocol/aztec-packages#4226))
([b4dc31d](AztecProtocol/aztec-packages@b4dc31d))
* **avm:** Add tests for memory and bitwise instructions
([#4184](AztecProtocol/aztec-packages#4184))
([6dac650](AztecProtocol/aztec-packages@6dac650))
* **avm:** Bytecode avm control flow
([#4253](AztecProtocol/aztec-packages#4253))
([fb1d742](AztecProtocol/aztec-packages@fb1d742)),
closes
[#4209](AztecProtocol/aztec-packages#4209)
* **avm:** Bytecode parsing and proof generation
([#4191](AztecProtocol/aztec-packages#4191))
([6c70548](AztecProtocol/aztec-packages@6c70548)),
closes
[#3791](AztecProtocol/aztec-packages#3791)
* **avm:** Environment getters
([#4203](AztecProtocol/aztec-packages#4203))
([60d2377](AztecProtocol/aztec-packages@60d2377))
* **avm:** Implement comparator opcodes
([#4232](AztecProtocol/aztec-packages#4232))
([973ff2f](AztecProtocol/aztec-packages@973ff2f))
* **avm:** Initial external calls
([#4194](AztecProtocol/aztec-packages#4194))
([d8aa966](AztecProtocol/aztec-packages@d8aa966))
* **avm:** Link up storage
([#4150](AztecProtocol/aztec-packages#4150))
([3e86870](AztecProtocol/aztec-packages@3e86870))
* **avm:** Revert instruction
([#4206](AztecProtocol/aztec-packages#4206))
([bd6e797](AztecProtocol/aztec-packages@bd6e797))
* **avm:** Tagged memory
([#4213](AztecProtocol/aztec-packages#4213))
([e5ff2f6](AztecProtocol/aztec-packages@e5ff2f6))
* Aztec binary
([#3927](AztecProtocol/aztec-packages#3927))
([12356d9](AztecProtocol/aztec-packages@12356d9))
* Contract classes and instances
([#4192](AztecProtocol/aztec-packages#4192))
([1858126](AztecProtocol/aztec-packages@1858126)),
closes
[#4053](AztecProtocol/aztec-packages#4053)
* Deserialize AztecAddress when contract's view function returns it in
Aztec.js
[#3641](AztecProtocol/aztec-packages#3641)
([#4224](AztecProtocol/aztec-packages#4224))
([11f400f](AztecProtocol/aztec-packages@11f400f))
* **docs:** DIP1: Extract Explanations
([#4228](AztecProtocol/aztec-packages#4228))
([3b25737](AztecProtocol/aztec-packages@3b25737))
* **docs:** Historical trees docs
([#3895](AztecProtocol/aztec-packages#3895))
([8c3efba](AztecProtocol/aztec-packages@8c3efba))
* **docs:** PXE docs
([#4021](AztecProtocol/aztec-packages#4021))
([a656034](AztecProtocol/aztec-packages@a656034))
* Implement bigint in Noir, using bigint opcodes
([#4198](AztecProtocol/aztec-packages#4198))
([3720415](AztecProtocol/aztec-packages@3720415))
* Implement Embedded EC add and double opcodes
([#3982](AztecProtocol/aztec-packages#3982))
([ccb7bff](AztecProtocol/aztec-packages@ccb7bff))
* Limit exposed functions on note utils
([#4207](AztecProtocol/aztec-packages#4207))
([8338f39](AztecProtocol/aztec-packages@8338f39))
* Nullifier key validation
([#4176](AztecProtocol/aztec-packages#4176))
([1c72c0d](AztecProtocol/aztec-packages@1c72c0d))
* Produce graph of internal Barretenberg dependencies
([#4225](AztecProtocol/aztec-packages#4225))
([88e7923](AztecProtocol/aztec-packages@88e7923))
* Recursive folding and decider verifier for Protogalaxy
([#4156](AztecProtocol/aztec-packages#4156))
([9342048](AztecProtocol/aztec-packages@9342048))
* Remove ec_double opcode
([#4210](AztecProtocol/aztec-packages#4210))
([75f26c4](AztecProtocol/aztec-packages@75f26c4))
* Replace single bit range constraints with basic bool gates
([#4164](AztecProtocol/aztec-packages#4164))
([0a3553b](AztecProtocol/aztec-packages@0a3553b))
* Updates singleton usage
([#4186](AztecProtocol/aztec-packages#4186))
([301f0e6](AztecProtocol/aztec-packages@301f0e6))


### Bug Fixes

* **avm:** Fix usage of Fr with tagged memory
([#4240](AztecProtocol/aztec-packages#4240))
([b82e70c](AztecProtocol/aztec-packages@b82e70c))
* **bb:** .gitignore
([#4201](AztecProtocol/aztec-packages#4201))
([a56e418](AztecProtocol/aztec-packages@a56e418))
* **docs:** Add missing deps to token tutorial references
([#4265](AztecProtocol/aztec-packages#4265))
([d7e2d9c](AztecProtocol/aztec-packages@d7e2d9c))
* Generic Honk dependencies
([#4239](AztecProtocol/aztec-packages#4239))
([382dfbe](AztecProtocol/aztec-packages@382dfbe))


### Miscellaneous

* Add note getter test to cci
([#4236](AztecProtocol/aztec-packages#4236))
([e1184ff](AztecProtocol/aztec-packages@e1184ff))
* **avm-simulator:** Cleanup, tags as first instruction constructor args
([#4244](AztecProtocol/aztec-packages#4244))
([e46b865](AztecProtocol/aztec-packages@e46b865))
* **avm:** Remove the state manager in favour of journal
([#4195](AztecProtocol/aztec-packages#4195))
([40f9324](AztecProtocol/aztec-packages@40f9324))
* **bb:** Rearrange namespaces
([#4147](AztecProtocol/aztec-packages#4147))
([5de0a8e](AztecProtocol/aztec-packages@5de0a8e))
* Cleaning up circuits test setup
([#4235](AztecProtocol/aztec-packages#4235))
([fa6915a](AztecProtocol/aztec-packages@fa6915a)),
closes
[#4237](AztecProtocol/aztec-packages#4237)
* Delete C++ PK circuits
([#4219](AztecProtocol/aztec-packages#4219))
([9136d32](AztecProtocol/aztec-packages@9136d32))
* Delete MemoryDB
([#4241](AztecProtocol/aztec-packages#4241))
([9e6250a](AztecProtocol/aztec-packages@9e6250a))
* **docs:** Fix a few links to docs
([#4260](AztecProtocol/aztec-packages#4260))
([1c8ea49](AztecProtocol/aztec-packages@1c8ea49))
* **docs:** Fix autogen docs
([#4261](AztecProtocol/aztec-packages#4261))
([3b9927a](AztecProtocol/aztec-packages@3b9927a))
* **docs:** Fix public and private storage not in docs
([#4257](AztecProtocol/aztec-packages#4257))
([48ceafd](AztecProtocol/aztec-packages@48ceafd))
* **docs:** Fix token bridge tutorial
([#3935](AztecProtocol/aztec-packages#3935))
([84c9fdb](AztecProtocol/aztec-packages@84c9fdb))
* **docs:** Split contract storage pages
([#4202](AztecProtocol/aztec-packages#4202))
([1e05f33](AztecProtocol/aztec-packages@1e05f33))
* Fix typo in yellow paper
([#4247](AztecProtocol/aztec-packages#4247))
([ac82e6b](AztecProtocol/aztec-packages@ac82e6b))
* Fixes test file from
[#4205](AztecProtocol/aztec-packages#4205)
([#4216](AztecProtocol/aztec-packages#4216))
([18a9b72](AztecProtocol/aztec-packages@18a9b72))
* Git subrepo pull (merge) noir
([#4252](AztecProtocol/aztec-packages#4252))
([80be57d](AztecProtocol/aztec-packages@80be57d))
* Nuking old `BlockHeader`
([#4154](AztecProtocol/aztec-packages#4154))
([997791a](AztecProtocol/aztec-packages@997791a)),
closes
[#3937](AztecProtocol/aztec-packages#3937)
[#3564](AztecProtocol/aztec-packages#3564)
[#4134](AztecProtocol/aztec-packages#4134)
* Remove flaky e2e p2p test
([#4181](AztecProtocol/aztec-packages#4181))
([688e4af](AztecProtocol/aztec-packages@688e4af))
* Remove mandatory jsdoc
([#4180](AztecProtocol/aztec-packages#4180))
([9625b43](AztecProtocol/aztec-packages@9625b43)),
closes
[#3860](AztecProtocol/aztec-packages#3860)
* Remove stubbed docs
([#4196](AztecProtocol/aztec-packages#4196))
([25a4bc4](AztecProtocol/aztec-packages@25a4bc4))
* Replace leveldb with lmdb for merkle trees
([#4119](AztecProtocol/aztec-packages#4119))
([84967b2](AztecProtocol/aztec-packages@84967b2)),
closes
[#3362](AztecProtocol/aztec-packages#3362)
* Replace relative paths to noir-protocol-circuits
([a9839a8](AztecProtocol/aztec-packages@a9839a8))
* Replace relative paths to noir-protocol-circuits
([2ef6e56](AztecProtocol/aztec-packages@2ef6e56))
* Replace relative paths to noir-protocol-circuits
([426c17d](AztecProtocol/aztec-packages@426c17d))
* Replace relative paths to noir-protocol-circuits
([12adb71](AztecProtocol/aztec-packages@12adb71))
* Replace relative paths to noir-protocol-circuits
([fcd048d](AztecProtocol/aztec-packages@fcd048d))
* Unifying Header serialization accross domains
([#4230](AztecProtocol/aztec-packages#4230))
([92080a0](AztecProtocol/aztec-packages@92080a0))
* Update .gitrepo with correct parent hash
([#4279](AztecProtocol/aztec-packages#4279))
([9253c8a](AztecProtocol/aztec-packages@9253c8a))


### Documentation

* **bb:** How to use docker_interactive.sh
([#4220](AztecProtocol/aztec-packages#4220))
([f44c6b1](AztecProtocol/aztec-packages@f44c6b1))
* Update welcome page and dev pages
([#4143](AztecProtocol/aztec-packages#4143))
([d2a86ff](AztecProtocol/aztec-packages@d2a86ff))
</details>

<details><summary>barretenberg.js: 0.21.0</summary>

##
[0.21.0](AztecProtocol/aztec-packages@barretenberg.js-v0.20.0...barretenberg.js-v0.21.0)
(2024-01-30)


### Miscellaneous

* **barretenberg.js:** Synchronize aztec-packages versions
</details>

<details><summary>barretenberg: 0.21.0</summary>

##
[0.21.0](AztecProtocol/aztec-packages@barretenberg-v0.20.0...barretenberg-v0.21.0)
(2024-01-30)


### ⚠ BREAKING CHANGES

* add opcode for sha256 compression function
([#4229](AztecProtocol/aztec-packages#4229))
* add opcode for poseidon2 permutation
([#4214](AztecProtocol/aztec-packages#4214))
* remove ec_double opcode
([#4210](AztecProtocol/aztec-packages#4210))
* Add big int opcodes (without implementation)
([#4050](AztecProtocol/aztec-packages#4050))

### Features

* **3738:** AVM basic arithmetic operations for non ff types
([#3881](AztecProtocol/aztec-packages#3881))
([457a3f9](AztecProtocol/aztec-packages@457a3f9)),
closes
[#3996](AztecProtocol/aztec-packages#3996)
* Add big int opcodes (without implementation)
([#4050](AztecProtocol/aztec-packages#4050))
([bcab9ce](AztecProtocol/aztec-packages@bcab9ce))
* Add opcode for poseidon2 permutation
([#4214](AztecProtocol/aztec-packages#4214))
([53c5ba5](AztecProtocol/aztec-packages@53c5ba5))
* Add opcode for sha256 compression function
([#4229](AztecProtocol/aztec-packages#4229))
([ac25ff7](AztecProtocol/aztec-packages@ac25ff7))
* **avm:** Bytecode avm control flow
([#4253](AztecProtocol/aztec-packages#4253))
([fb1d742](AztecProtocol/aztec-packages@fb1d742)),
closes
[#4209](AztecProtocol/aztec-packages#4209)
* **avm:** Bytecode parsing and proof generation
([#4191](AztecProtocol/aztec-packages#4191))
([6c70548](AztecProtocol/aztec-packages@6c70548)),
closes
[#3791](AztecProtocol/aztec-packages#3791)
* Implement Embedded EC add and double opcodes
([#3982](AztecProtocol/aztec-packages#3982))
([ccb7bff](AztecProtocol/aztec-packages@ccb7bff))
* Produce graph of internal Barretenberg dependencies
([#4225](AztecProtocol/aztec-packages#4225))
([88e7923](AztecProtocol/aztec-packages@88e7923))
* Recursive folding and decider verifier for Protogalaxy
([#4156](AztecProtocol/aztec-packages#4156))
([9342048](AztecProtocol/aztec-packages@9342048))
* Remove ec_double opcode
([#4210](AztecProtocol/aztec-packages#4210))
([75f26c4](AztecProtocol/aztec-packages@75f26c4))
* Replace single bit range constraints with basic bool gates
([#4164](AztecProtocol/aztec-packages#4164))
([0a3553b](AztecProtocol/aztec-packages@0a3553b))


### Bug Fixes

* **bb:** .gitignore
([#4201](AztecProtocol/aztec-packages#4201))
([a56e418](AztecProtocol/aztec-packages@a56e418))
* Generic Honk dependencies
([#4239](AztecProtocol/aztec-packages#4239))
([382dfbe](AztecProtocol/aztec-packages@382dfbe))


### Miscellaneous

* **bb:** Rearrange namespaces
([#4147](AztecProtocol/aztec-packages#4147))
([5de0a8e](AztecProtocol/aztec-packages@5de0a8e))
* Delete C++ PK circuits
([#4219](AztecProtocol/aztec-packages#4219))
([9136d32](AztecProtocol/aztec-packages@9136d32))


### Documentation

* **bb:** How to use docker_interactive.sh
([#4220](AztecProtocol/aztec-packages#4220))
([f44c6b1](AztecProtocol/aztec-packages@f44c6b1))
</details>

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).
michaelelliot pushed a commit to Swoir/noir_rs that referenced this pull request Feb 28, 2024
michaelelliot pushed a commit to Swoir/noir_rs that referenced this pull request Feb 28, 2024
🤖 I have created a release *beep* *boop*
---


<details><summary>aztec-packages: 0.21.0</summary>

##
[0.21.0](AztecProtocol/aztec-packages@aztec-packages-v0.20.0...aztec-packages-v0.21.0)
(2024-01-30)


### ⚠ BREAKING CHANGES

* aztec binary
([AztecProtocol#3927](AztecProtocol#3927))
* add opcode for sha256 compression function
([AztecProtocol#4229](AztecProtocol#4229))
* add opcode for poseidon2 permutation
([AztecProtocol#4214](AztecProtocol#4214))
* remove ec_double opcode
([AztecProtocol#4210](AztecProtocol#4210))
* Updates singleton usage
([AztecProtocol#4186](AztecProtocol#4186))
* Add big int opcodes (without implementation)
([AztecProtocol#4050](AztecProtocol#4050))

### Features

* **3738:** AVM basic arithmetic operations for non ff types
([AztecProtocol#3881](AztecProtocol#3881))
([457a3f9](AztecProtocol@457a3f9)),
closes
[AztecProtocol#3996](AztecProtocol#3996)
* Accrued substate instructions
([AztecProtocol#4197](AztecProtocol#4197))
([bfe30d2](AztecProtocol@bfe30d2))
* Add big int opcodes (without implementation)
([AztecProtocol#4050](AztecProtocol#4050))
([bcab9ce](AztecProtocol@bcab9ce))
* Add comparators to get/view note
([AztecProtocol#3136](AztecProtocol#3136))
([AztecProtocol#4205](AztecProtocol#4205))
([6de36b3](AztecProtocol@6de36b3))
* Add inclusion check l1-&gt;l2
([AztecProtocol#4141](AztecProtocol#4141))
([bef65c3](AztecProtocol@bef65c3))
* Add opcode for poseidon2 permutation
([AztecProtocol#4214](AztecProtocol#4214))
([53c5ba5](AztecProtocol@53c5ba5))
* Add opcode for sha256 compression function
([AztecProtocol#4229](AztecProtocol#4229))
([ac25ff7](AztecProtocol@ac25ff7))
* Adding slither to l1-contracts
([AztecProtocol#4226](AztecProtocol#4226))
([b4dc31d](AztecProtocol@b4dc31d))
* **avm:** Add tests for memory and bitwise instructions
([AztecProtocol#4184](AztecProtocol#4184))
([6dac650](AztecProtocol@6dac650))
* **avm:** Bytecode avm control flow
([AztecProtocol#4253](AztecProtocol#4253))
([fb1d742](AztecProtocol@fb1d742)),
closes
[AztecProtocol#4209](AztecProtocol#4209)
* **avm:** Bytecode parsing and proof generation
([AztecProtocol#4191](AztecProtocol#4191))
([6c70548](AztecProtocol@6c70548)),
closes
[AztecProtocol#3791](AztecProtocol#3791)
* **avm:** Environment getters
([AztecProtocol#4203](AztecProtocol#4203))
([60d2377](AztecProtocol@60d2377))
* **avm:** Implement comparator opcodes
([AztecProtocol#4232](AztecProtocol#4232))
([973ff2f](AztecProtocol@973ff2f))
* **avm:** Initial external calls
([AztecProtocol#4194](AztecProtocol#4194))
([d8aa966](AztecProtocol@d8aa966))
* **avm:** Link up storage
([AztecProtocol#4150](AztecProtocol#4150))
([3e86870](AztecProtocol@3e86870))
* **avm:** Revert instruction
([AztecProtocol#4206](AztecProtocol#4206))
([bd6e797](AztecProtocol@bd6e797))
* **avm:** Tagged memory
([AztecProtocol#4213](AztecProtocol#4213))
([e5ff2f6](AztecProtocol@e5ff2f6))
* Aztec binary
([AztecProtocol#3927](AztecProtocol#3927))
([12356d9](AztecProtocol@12356d9))
* Contract classes and instances
([AztecProtocol#4192](AztecProtocol#4192))
([1858126](AztecProtocol@1858126)),
closes
[AztecProtocol#4053](AztecProtocol#4053)
* Deserialize AztecAddress when contract's view function returns it in
Aztec.js
[AztecProtocol#3641](AztecProtocol#3641)
([AztecProtocol#4224](AztecProtocol#4224))
([11f400f](AztecProtocol@11f400f))
* **docs:** DIP1: Extract Explanations
([AztecProtocol#4228](AztecProtocol#4228))
([3b25737](AztecProtocol@3b25737))
* **docs:** Historical trees docs
([AztecProtocol#3895](AztecProtocol#3895))
([8c3efba](AztecProtocol@8c3efba))
* **docs:** PXE docs
([AztecProtocol#4021](AztecProtocol#4021))
([a656034](AztecProtocol@a656034))
* Implement bigint in Noir, using bigint opcodes
([AztecProtocol#4198](AztecProtocol#4198))
([3720415](AztecProtocol@3720415))
* Implement Embedded EC add and double opcodes
([AztecProtocol#3982](AztecProtocol#3982))
([ccb7bff](AztecProtocol@ccb7bff))
* Limit exposed functions on note utils
([AztecProtocol#4207](AztecProtocol#4207))
([8338f39](AztecProtocol@8338f39))
* Nullifier key validation
([AztecProtocol#4176](AztecProtocol#4176))
([1c72c0d](AztecProtocol@1c72c0d))
* Produce graph of internal Barretenberg dependencies
([AztecProtocol#4225](AztecProtocol#4225))
([88e7923](AztecProtocol@88e7923))
* Recursive folding and decider verifier for Protogalaxy
([AztecProtocol#4156](AztecProtocol#4156))
([9342048](AztecProtocol@9342048))
* Remove ec_double opcode
([AztecProtocol#4210](AztecProtocol#4210))
([75f26c4](AztecProtocol@75f26c4))
* Replace single bit range constraints with basic bool gates
([AztecProtocol#4164](AztecProtocol#4164))
([0a3553b](AztecProtocol@0a3553b))
* Updates singleton usage
([AztecProtocol#4186](AztecProtocol#4186))
([301f0e6](AztecProtocol@301f0e6))


### Bug Fixes

* **avm:** Fix usage of Fr with tagged memory
([AztecProtocol#4240](AztecProtocol#4240))
([b82e70c](AztecProtocol@b82e70c))
* **bb:** .gitignore
([AztecProtocol#4201](AztecProtocol#4201))
([a56e418](AztecProtocol@a56e418))
* **docs:** Add missing deps to token tutorial references
([AztecProtocol#4265](AztecProtocol#4265))
([d7e2d9c](AztecProtocol@d7e2d9c))
* Generic Honk dependencies
([AztecProtocol#4239](AztecProtocol#4239))
([382dfbe](AztecProtocol@382dfbe))


### Miscellaneous

* Add note getter test to cci
([AztecProtocol#4236](AztecProtocol#4236))
([e1184ff](AztecProtocol@e1184ff))
* **avm-simulator:** Cleanup, tags as first instruction constructor args
([AztecProtocol#4244](AztecProtocol#4244))
([e46b865](AztecProtocol@e46b865))
* **avm:** Remove the state manager in favour of journal
([AztecProtocol#4195](AztecProtocol#4195))
([40f9324](AztecProtocol@40f9324))
* **bb:** Rearrange namespaces
([AztecProtocol#4147](AztecProtocol#4147))
([5de0a8e](AztecProtocol@5de0a8e))
* Cleaning up circuits test setup
([AztecProtocol#4235](AztecProtocol#4235))
([fa6915a](AztecProtocol@fa6915a)),
closes
[AztecProtocol#4237](AztecProtocol#4237)
* Delete C++ PK circuits
([AztecProtocol#4219](AztecProtocol#4219))
([9136d32](AztecProtocol@9136d32))
* Delete MemoryDB
([AztecProtocol#4241](AztecProtocol#4241))
([9e6250a](AztecProtocol@9e6250a))
* **docs:** Fix a few links to docs
([AztecProtocol#4260](AztecProtocol#4260))
([1c8ea49](AztecProtocol@1c8ea49))
* **docs:** Fix autogen docs
([AztecProtocol#4261](AztecProtocol#4261))
([3b9927a](AztecProtocol@3b9927a))
* **docs:** Fix public and private storage not in docs
([AztecProtocol#4257](AztecProtocol#4257))
([48ceafd](AztecProtocol@48ceafd))
* **docs:** Fix token bridge tutorial
([AztecProtocol#3935](AztecProtocol#3935))
([84c9fdb](AztecProtocol@84c9fdb))
* **docs:** Split contract storage pages
([AztecProtocol#4202](AztecProtocol#4202))
([1e05f33](AztecProtocol@1e05f33))
* Fix typo in yellow paper
([AztecProtocol#4247](AztecProtocol#4247))
([ac82e6b](AztecProtocol@ac82e6b))
* Fixes test file from
[AztecProtocol#4205](AztecProtocol#4205)
([AztecProtocol#4216](AztecProtocol#4216))
([18a9b72](AztecProtocol@18a9b72))
* Git subrepo pull (merge) noir
([AztecProtocol#4252](AztecProtocol#4252))
([80be57d](AztecProtocol@80be57d))
* Nuking old `BlockHeader`
([AztecProtocol#4154](AztecProtocol#4154))
([997791a](AztecProtocol@997791a)),
closes
[AztecProtocol#3937](AztecProtocol#3937)
[AztecProtocol#3564](AztecProtocol#3564)
[AztecProtocol#4134](AztecProtocol#4134)
* Remove flaky e2e p2p test
([AztecProtocol#4181](AztecProtocol#4181))
([688e4af](AztecProtocol@688e4af))
* Remove mandatory jsdoc
([AztecProtocol#4180](AztecProtocol#4180))
([9625b43](AztecProtocol@9625b43)),
closes
[AztecProtocol#3860](AztecProtocol#3860)
* Remove stubbed docs
([AztecProtocol#4196](AztecProtocol#4196))
([25a4bc4](AztecProtocol@25a4bc4))
* Replace leveldb with lmdb for merkle trees
([AztecProtocol#4119](AztecProtocol#4119))
([84967b2](AztecProtocol@84967b2)),
closes
[AztecProtocol#3362](AztecProtocol#3362)
* Replace relative paths to noir-protocol-circuits
([a9839a8](AztecProtocol@a9839a8))
* Replace relative paths to noir-protocol-circuits
([2ef6e56](AztecProtocol@2ef6e56))
* Replace relative paths to noir-protocol-circuits
([426c17d](AztecProtocol@426c17d))
* Replace relative paths to noir-protocol-circuits
([12adb71](AztecProtocol@12adb71))
* Replace relative paths to noir-protocol-circuits
([fcd048d](AztecProtocol@fcd048d))
* Unifying Header serialization accross domains
([AztecProtocol#4230](AztecProtocol#4230))
([92080a0](AztecProtocol@92080a0))
* Update .gitrepo with correct parent hash
([AztecProtocol#4279](AztecProtocol#4279))
([9253c8a](AztecProtocol@9253c8a))


### Documentation

* **bb:** How to use docker_interactive.sh
([AztecProtocol#4220](AztecProtocol#4220))
([f44c6b1](AztecProtocol@f44c6b1))
* Update welcome page and dev pages
([AztecProtocol#4143](AztecProtocol#4143))
([d2a86ff](AztecProtocol@d2a86ff))
</details>

<details><summary>barretenberg.js: 0.21.0</summary>

##
[0.21.0](AztecProtocol/aztec-packages@barretenberg.js-v0.20.0...barretenberg.js-v0.21.0)
(2024-01-30)


### Miscellaneous

* **barretenberg.js:** Synchronize aztec-packages versions
</details>

<details><summary>barretenberg: 0.21.0</summary>

##
[0.21.0](AztecProtocol/aztec-packages@barretenberg-v0.20.0...barretenberg-v0.21.0)
(2024-01-30)


### ⚠ BREAKING CHANGES

* add opcode for sha256 compression function
([AztecProtocol#4229](AztecProtocol#4229))
* add opcode for poseidon2 permutation
([AztecProtocol#4214](AztecProtocol#4214))
* remove ec_double opcode
([AztecProtocol#4210](AztecProtocol#4210))
* Add big int opcodes (without implementation)
([AztecProtocol#4050](AztecProtocol#4050))

### Features

* **3738:** AVM basic arithmetic operations for non ff types
([AztecProtocol#3881](AztecProtocol#3881))
([457a3f9](AztecProtocol@457a3f9)),
closes
[AztecProtocol#3996](AztecProtocol#3996)
* Add big int opcodes (without implementation)
([AztecProtocol#4050](AztecProtocol#4050))
([bcab9ce](AztecProtocol@bcab9ce))
* Add opcode for poseidon2 permutation
([AztecProtocol#4214](AztecProtocol#4214))
([53c5ba5](AztecProtocol@53c5ba5))
* Add opcode for sha256 compression function
([AztecProtocol#4229](AztecProtocol#4229))
([ac25ff7](AztecProtocol@ac25ff7))
* **avm:** Bytecode avm control flow
([AztecProtocol#4253](AztecProtocol#4253))
([fb1d742](AztecProtocol@fb1d742)),
closes
[AztecProtocol#4209](AztecProtocol#4209)
* **avm:** Bytecode parsing and proof generation
([AztecProtocol#4191](AztecProtocol#4191))
([6c70548](AztecProtocol@6c70548)),
closes
[AztecProtocol#3791](AztecProtocol#3791)
* Implement Embedded EC add and double opcodes
([AztecProtocol#3982](AztecProtocol#3982))
([ccb7bff](AztecProtocol@ccb7bff))
* Produce graph of internal Barretenberg dependencies
([AztecProtocol#4225](AztecProtocol#4225))
([88e7923](AztecProtocol@88e7923))
* Recursive folding and decider verifier for Protogalaxy
([AztecProtocol#4156](AztecProtocol#4156))
([9342048](AztecProtocol@9342048))
* Remove ec_double opcode
([AztecProtocol#4210](AztecProtocol#4210))
([75f26c4](AztecProtocol@75f26c4))
* Replace single bit range constraints with basic bool gates
([AztecProtocol#4164](AztecProtocol#4164))
([0a3553b](AztecProtocol@0a3553b))


### Bug Fixes

* **bb:** .gitignore
([AztecProtocol#4201](AztecProtocol#4201))
([a56e418](AztecProtocol@a56e418))
* Generic Honk dependencies
([AztecProtocol#4239](AztecProtocol#4239))
([382dfbe](AztecProtocol@382dfbe))


### Miscellaneous

* **bb:** Rearrange namespaces
([AztecProtocol#4147](AztecProtocol#4147))
([5de0a8e](AztecProtocol@5de0a8e))
* Delete C++ PK circuits
([AztecProtocol#4219](AztecProtocol#4219))
([9136d32](AztecProtocol@9136d32))


### Documentation

* **bb:** How to use docker_interactive.sh
([AztecProtocol#4220](AztecProtocol#4220))
([f44c6b1](AztecProtocol@f44c6b1))
</details>

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
Archived in project
Development

Successfully merging this pull request may close these issues.

public-vm(ts): Implement Storage operations ( note : depends on journal )
4 participants