From 44638e9a28d70998d990d7e43027eaf069d8e46f Mon Sep 17 00:00:00 2001
From: mpoplavkov <mihail.poplavkov@gmail.com>
Date: Mon, 21 Oct 2024 20:49:49 +0100
Subject: [PATCH] Remove unnecessary division

---
 libraries/math/src/pool_math.sw | 8 ++++----
 tools/fetch_abis.sh             | 1 +
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/libraries/math/src/pool_math.sw b/libraries/math/src/pool_math.sw
index 8bb07d2..323c470 100644
--- a/libraries/math/src/pool_math.sw
+++ b/libraries/math/src/pool_math.sw
@@ -247,7 +247,7 @@ fn k(
         let _y: u256 = y * ONE_E_18 / pow_decimals_y;
         let _a: u256 = (_x * _y) / ONE_E_18;
         let _b: u256 = ((_x * _x) / ONE_E_18 + (_y * _y) / ONE_E_18);
-        return _a * _b / ONE_E_18; // x3y+y3x >= k
+        return _a * _b; // x3y+y3x >= k
     } else {
         return x * y; // xy >= k
     }
@@ -255,7 +255,7 @@ fn k(
 
 // TODO: combine with `k` above?
 fn f(x_0: u256, y: u256) -> u256 {
-    x_0 * (y * y / ONE_E_18 * y / ONE_E_18) / ONE_E_18 + (x_0 * x_0 / ONE_E_18 * x_0 / ONE_E_18) * y / ONE_E_18
+    x_0 * (y * y / ONE_E_18 * y / ONE_E_18) + (x_0 * x_0 / ONE_E_18 * x_0 / ONE_E_18) * y
 }
 
 fn d(x_0: u256, y: u256) -> u256 {
@@ -269,10 +269,10 @@ fn get_y(x_0: u256, xy: u256, y: u256) -> u256 {
         let y_prev = y;
         let k = f(x_0, y);
         if k < xy {
-            let dy = (xy - k) * ONE_E_18 / d(x_0, y);
+            let dy = (xy - k) / d(x_0, y);
             y = y + dy;
         } else {
-            let dy = (k - xy) * ONE_E_18 / d(x_0, y);
+            let dy = (k - xy) / d(x_0, y);
             y = y - dy;
         }
         if y > y_prev {
diff --git a/tools/fetch_abis.sh b/tools/fetch_abis.sh
index ca70ffe..6295159 100755
--- a/tools/fetch_abis.sh
+++ b/tools/fetch_abis.sh
@@ -11,6 +11,7 @@ git clone git@github.com:mira-amm/mira-v1-core.git
 echo "Building Mira v1 core"
 
 cd mira-v1-core
+git checkout mainnet-deployment
 forc build --release
 
 cd ../..