From: Chris Duncan <chris@codecow.com>
Date: Fri, 21 Aug 2026 20:17:51 +0000 (-0700)
Subject: Reuse one ge for base point arithmetic.
X-Git-Url: https://git.codecow.com/?a=commitdiff_plain;h=9ed12b76d76a1ff33a112e4da0b55668a5d42c17;p=nano25519.git

Reuse one ge for base point arithmetic.
---

diff --git a/src/assembly/ge.ts b/src/assembly/ge.ts
index 32dd7c5..d48c3ee 100644
--- a/src/assembly/ge.ts
+++ b/src/assembly/ge.ts
@@ -32,16 +32,7 @@ function ge_cmov (t: ge_precomp, u: ge_precomp, b: u8): void {
 }
 
 const ge_cmov8_minust: ge_precomp = new ge_precomp()
-const ge_cmov8_precomp: StaticArray<ge_precomp> = StaticArray.fromArray<ge_precomp>([
-	new ge_precomp(),
-	new ge_precomp(),
-	new ge_precomp(),
-	new ge_precomp(),
-	new ge_precomp(),
-	new ge_precomp(),
-	new ge_precomp(),
-	new ge_precomp(),
-])
+const ge_cmov8_precomp: ge_precomp = new ge_precomp()
 //@ts-expect-error
 @inline
 function ge_cmov8_base (t: ge_precomp, offset: i32, b: i8): void {
@@ -52,10 +43,10 @@ function ge_cmov8_base (t: ge_precomp, offset: i32, b: i8): void {
 	ge_precomp_0(t)
 	for (let i = 0; i < 8; i++) {
 		const ptr = base + offset + (i * 144) // 4 bytes * 12 values * 3 fields
-		memory.copy(changetype<usize>(ge_cmov8_precomp[i].yplusx), ptr, 48)
-		memory.copy(changetype<usize>(ge_cmov8_precomp[i].yminusx), ptr + 48, 48)
-		memory.copy(changetype<usize>(ge_cmov8_precomp[i].xy2d), ptr + 96, 48)
-		ge_cmov(t, ge_cmov8_precomp[i], equal(babs, i8(i + 1)))
+		memory.copy(changetype<usize>(ge_cmov8_precomp.yplusx), ptr, 48)
+		memory.copy(changetype<usize>(ge_cmov8_precomp.yminusx), ptr + 48, 48)
+		memory.copy(changetype<usize>(ge_cmov8_precomp.xy2d), ptr + 96, 48)
+		ge_cmov(t, ge_cmov8_precomp, equal(babs, i8(i + 1)))
 	}
 
 	fe_copy(minust.yplusx, t.yminusx)