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Diffstat (limited to 'src/Util/ZUtil/Definitions.v')
| -rw-r--r-- | src/Util/ZUtil/Definitions.v | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/Util/ZUtil/Definitions.v b/src/Util/ZUtil/Definitions.v index 760651a94..66fc7f558 100644 --- a/src/Util/ZUtil/Definitions.v +++ b/src/Util/ZUtil/Definitions.v @@ -10,6 +10,9 @@ Module Z. Definition zselect (cond zero_case nonzero_case : Z) := if cond =? 0 then zero_case else nonzero_case. + Definition add_modulo x y modulus := + if (modulus <=? x + y) then (x + y) - modulus else (x + y). + Definition get_carry (bitwidth : Z) (v : Z) : Z * Z := (v mod 2^bitwidth, v / 2^bitwidth). Definition add_with_carry (c : Z) (x y : Z) : Z |