2 Commits

Author SHA1 Message Date
Robin Salen
06bc73f7ea
Combine arithmetic flags on the CPU side (#1187)
* Combine FP254 flags

* Combine basic binary ops together and do CTL with opcode value

* Combine ternary ops together

* Combine MUL DIV and MOD

* Combine shift operations

* Combine byte with other binary ops

* Fix tests

* Clean leftover comment

* Update from latest main

* Put the 'is_simulated' flag inside the Operation enum

* Cleaner way to handle "simulated" operations SHL and SHR.

* Fix comments.

* Minor: suggestion for re-expressing `combined_ops`.

* Update comment

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Co-authored-by: Hamish Ivey-Law <hamish@ivey-law.name>
2023-09-14 10:36:48 -04:00
Hamish Ivey-Law
c134b59763
Cross-table lookup for arithmetic stark (#905)
* First draft of linking arithmetic Stark into the CTL mechanism.

* Handle {ADD,SUB,MUL}FP254 operations explicitly in `modular.rs`.

* Adjust argument order; add tests.

* Add CTLs for ADD, MUL, SUB, LT and GT.

* Add CTLs for {ADD,MUL,SUB}MOD, DIV and MOD.

* Add CTLs for {ADD,MUL,SUB}FP254 operations.

* Refactor the CPU/arithmetic CTL mapping; add some documentation.

* Minor comment fixes.

* Combine addcy CTLs at the expense of repeated constraint evaluation.

* Combine addcy CTLs at the expense of repeated constraint evaluation.

* Merge `*FP254` CTL into main CTL; rename some registers.

* Connect extra argument from CPU in binary ops to facilitate combining with ternary ops.

* Merge modular ops CTL into main CTL.

* Refactor DIV and MOD code into its own module.

* Merge DIV and MOD into arithmetic CTL.

* Clippy.

* Fixes related to merge.

* Simplify register naming.

* Generate u16 BN254 modulus limbs at compile time.

* Clippy.

* Add degree bits ranges for Arithmetic table.
2023-05-11 03:29:06 +10:00