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8 Commits

Author SHA1 Message Date
Jack Grigg 692fee099d halo2_gadgets: Clean up `ecc::chip::mul_fixed::Config` logic 
- We were redundantly storing the `x_p` and `y_p` columns.
- `Config::add_incomplete` was redundantly copying.

Co-authored-by: therealyingtong <yingtong@z.cash>
 2022-05-10 20:04:30 +00:00
Jack Grigg 85b0b7c065 halo2_gadgets: Refactor `ecc::chip::mul_fixed::Config` word assignment logic 
Co-authored-by: therealyingtong <yingtong@z.cash>
 2022-05-10 20:04:30 +00:00
Jack Grigg 3486703bd2 halo2_gadgets: Refactor fixed-base scalar mul gadget APIs 
The new `EccInstructions` instructions, and the corresponding changes to
existing instructions, enable chips to choose when to witness or constrain
the scalars, and simplify scalar reuse (though reuse is not implemented
for `EccChip` yet).

`FixedPoint::mul` and `FixedPointShort::mul` now has the same API style
as `NonIdentityPoint::mul`.
 2022-05-09 15:48:55 +00:00
Jack Grigg b02800466a halo2_gadgets: Migrate chip gates to `Constraints::with_selector` 
Only one gate couldn't be migrated without altering the Orchard circuit.
 2022-04-24 22:13:38 +00:00
therealyingtong 7c7c281000 Visibility fixes. 2022-01-28 23:38:22 +08:00
Jack Grigg 9a12beee73 halo2_gadgets: Rename `halo2` to `halo2_proofs` 
The previous commit renamed `halo2_proofs` back to `halo2` temporarily
to keep the commit size down. This commit performs the rename in a
single pass.
 2022-01-27 23:32:04 +00:00
Jack Grigg 5202ec6eda Integrate `halo2_gadgets` into the workspace 
THe SHA-256 example gadget has been moved into the `halo2_gadgets` crate
behind an `unstable` feature flag.
 2022-01-27 23:32:04 +00:00
Jack Grigg a2367abcaf Migrate to `halo2_gadgets` crate in subdir 
- The crate module structure from `orchard` has been flattened.
- The book pages we want to include in `halo2` have been moved to their
  target location, to avoid any conflicts during the merge.
- Common files that already exist in zcash/halo2 have been removed.
 2022-01-27 23:08:01 +00:00