From: Chris Duncan <chris@codecow.com>
Date: Fri, 21 Aug 2026 20:14:43 +0000 (-0700)
Subject: Eliminate intermediate base copy.
X-Git-Url: https://git.codecow.com/?a=commitdiff_plain;h=e8dbddaae2a9d27a658e15a4d23d74ca75fd25cc;p=nano25519.git

Eliminate intermediate base copy.
---

diff --git a/src/assembly/ge.ts b/src/assembly/ge.ts
index 040ddea..32dd7c5 100644
--- a/src/assembly/ge.ts
+++ b/src/assembly/ge.ts
@@ -31,7 +31,6 @@ function ge_cmov (t: ge_precomp, u: ge_precomp, b: u8): void {
 	fe_cmov(t.xy2d, u.xy2d, b)
 }
 
-const ge_cmov8_precomp_buffer: usize = changetype<usize>(new StaticArray<i32>(288)) // 12 values * 3 fields * 8 groups
 const ge_cmov8_minust: ge_precomp = new ge_precomp()
 const ge_cmov8_precomp: StaticArray<ge_precomp> = StaticArray.fromArray<ge_precomp>([
 	new ge_precomp(),
@@ -49,11 +48,10 @@ function ge_cmov8_base (t: ge_precomp, offset: i32, b: i8): void {
 	const minust = ge_cmov8_minust
 	const bnegative: u8 = negative(b)
 	const babs: u8 = b - (((-bnegative) & b) * (i8(1) << 1))
-	memory.copy(ge_cmov8_precomp_buffer, base + offset, 1152)
 
 	ge_precomp_0(t)
 	for (let i = 0; i < 8; i++) {
-		const ptr = ge_cmov8_precomp_buffer + (i * 144) // 4 bytes * 12 values * 3 fields
+		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)