From: Chris Duncan <chris@zoso.dev>
Date: Thu, 2 Jan 2025 13:50:34 +0000 (-0800)
Subject: Fix pointer dereferencing which was creating a copy instead of modifying pointee.
X-Git-Url: https://zoso.dev/?a=commitdiff_plain;h=06bd4a6649d5388c6f315116f1bc58c6c7a6708d;p=libnemo.git

Fix pointer dereferencing which was creating a copy instead of modifying pointee.
---

diff --git a/src/lib/workers/powgpu.ts b/src/lib/workers/powgpu.ts
index 58d3185..18e883c 100644
--- a/src/lib/workers/powgpu.ts
+++ b/src/lib/workers/powgpu.ts
@@ -82,15 +82,14 @@ export class PowGpu extends WorkerInterface {
 		* Sets v[a,a+1] += b
 		* b0 is the low 32 bits of b, b1 represents the high 32 bits
 		*/
-		fn add_uint64 (vv: ptr<function, array<u32, 32>>, a: u32, b0: u32, b1: u32) {
-			var v: array<u32, 32> = (*vv);
-			var o0: u32 = v[a] + b0;
-			var o1: u32 = v[a+1u] + b1;
-			if (v[a] > 0xFFFFFFFFu - b0) { // did low 32 bits overflow?
+		fn add_uint64 (ptr_v: ptr<function, array<u32, 32>>, a: u32, b0: u32, b1: u32) {
+			var o0: u32 = (*ptr_v)[a] + b0;
+			var o1: u32 = (*ptr_v)[a+1u] + b1;
+			if ((*ptr_v)[a] > 0xFFFFFFFFu - b0) { // did low 32 bits overflow?
 				o1 = o1 + 1u;
 			}
-			v[a] = o0;
-			v[a+1u] = o1;
+			(*ptr_v)[a] = o0;
+			(*ptr_v)[a+1u] = o1;
 		}
 
 		/**