From: Chris Duncan <chris@codecow.com>
Date: Fri, 21 Aug 2026 19:24:56 +0000 (-0700)
Subject: Remove pointer arithmetic from base point entirely and put it in ge function.
X-Git-Url: https://git.codecow.com/?a=commitdiff_plain;h=fe98b3236ce76827b7f6f8b36352e8ecb93953d7;p=nano25519.git

Remove pointer arithmetic from base point entirely and put it in ge function.
---

diff --git a/src/assembly/base.ts b/src/assembly/base.ts
index 4508f59..de9cab4 100644
--- a/src/assembly/base.ts
+++ b/src/assembly/base.ts
@@ -1,12 +1,7 @@
 //! SPDX-FileCopyrightText: 2013-2026 Frank Denis <j@pureftpd.org>
 //! SPDX-License-Identifier: ISC
 
-export function base (pos: i32): usize {
-	const start: usize = (pos << 10) + (pos << 7) // 1152 = 4 bytes * 12 values * 3 fe * 8 ge
-	return changetype<usize>(_base) + start
-}
-
-const _base = StaticArray.fromArray<i32>([
+export const base = StaticArray.fromArray<i32>([
 	/* 0/31 */
 	// yplusx
 	25967493, -14356035, 29566456, 3660896, -12694345, 4014787, 27544626, -11754271, -6079156, 2047605, 0, 0,
diff --git a/src/assembly/ge.ts b/src/assembly/ge.ts
index f1c6a7e..3093e06 100644
--- a/src/assembly/ge.ts
+++ b/src/assembly/ge.ts
@@ -49,7 +49,8 @@ function ge_cmov8_base (t: ge_precomp, pos: 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(pos), 1152)
+	const offset = pos * 1152 // 4 bytes * 12 values * 3 fe * 8 ge
+	memory.copy(ge_cmov8_precomp_buffer, changetype<usize>(base) + offset, 1152)
 
 	ge_precomp_0(t)
 	for (let i = 0; i < 8; i++) {