From: Chris Duncan <chris@zoso.dev>
Date: Thu, 9 Jan 2025 21:39:38 +0000 (-0800)
Subject: Deprecate G function.
X-Git-Url: https://zoso.dev/?a=commitdiff_plain;h=a01d9d2f29d15967c5a336b43e8874d8e6b21260;p=libnemo.git

Deprecate G function.
---

diff --git a/src/lib/nano-pow/shaders/gpu-compute.ts b/src/lib/nano-pow/shaders/gpu-compute.ts
index 53e19e1..791539a 100644
--- a/src/lib/nano-pow/shaders/gpu-compute.ts
+++ b/src/lib/nano-pow/shaders/gpu-compute.ts
@@ -18,89 +18,6 @@ struct WORK {
 */
 const BLAKE2B_IV32_1: u32 = 0x6A09E667u;
 
-
-/**
-* G Mixing function
-*/
-fn G (
-	va0: ptr<function, u32>, va1: ptr<function, u32>,
-	vb0: ptr<function, u32>, vb1: ptr<function, u32>,
-	vc0: ptr<function, u32>, vc1: ptr<function, u32>,
-	vd0: ptr<function, u32>, vd1: ptr<function, u32>,
-	mx0: u32, mx1: u32, my0: u32, my1: u32
-) {
-	var o0: u32;
-	var o1: u32;
-	var xor0: u32;
-	var xor1: u32;
-
-	// a = a + b
-	o0 = *va0 + *vb0;
-	o1 = *va1 + *vb1;
-	o1 = o1 + select(0u, 1u, o0 < *va0);
-	*va0 = o0;
-	*va1 = o1;
-
-	// a = a + m[sigma[r][2*i+0]]
-	o0 = *va0 + mx0;
-	o1 = *va1 + mx1;
-	o1 = o1 + select(0u, 1u, o0 < *va0);
-	*va0 = o0;
-	*va1 = o1;
-
-	// d = rotr64(d ^ a, 32)
-	xor0 = *vd0 ^ *va0;
-	xor1 = *vd1 ^ *va1;
-	*vd0 = xor1;
-	*vd1 = xor0;
-
-	// c = c + d
-	o0 = *vc0 + *vd0;
-	o1 = *vc1 + *vd1;
-	o1 = o1 + select(0u, 1u, o0 < *vc0);
-	*vc0 = o0;
-	*vc1 = o1;
-
-	// b = rotr64(b ^ c, 24)
-	xor0 = *vb0 ^ *vc0;
-	xor1 = *vb1 ^ *vc1;
-	*vb0 = (xor0 >> 24u) ^ (xor1 << 8u);
-	*vb1 = (xor1 >> 24u) ^ (xor0 << 8u);
-
-	// a = a + b
-	o0 = *va0 + *vb0;
-	o1 = *va1 + *vb1;
-	o1 = o1 + select(0u, 1u, o0 < *va0);
-	*va0 = o0;
-	*va1 = o1;
-
-	// a = a + m[sigma[r][2*i+1]]
-	o0 = *va0 + my0;
-	o1 = *va1 + my1;
-	o1 = o1 + select(0u, 1u, o0 < *va0);
-	*va0 = o0;
-	*va1 = o1;
-
-	// d = rotr64(d ^ a, 16)
-	xor0 = *vd0 ^ *va0;
-	xor1 = *vd1 ^ *va1;
-	*vd0 = (xor0 >> 16u) ^ (xor1 << 16u);
-	*vd1 = (xor1 >> 16u) ^ (xor0 << 16u);
-
-	// c = c + d
-	o0 = *vc0 + *vd0;
-	o1 = *vc1 + *vd1;
-	o1 = o1 + select(0u, 1u, o0 < *vc0);
-	*vc0 = o0;
-	*vc1 = o1;
-
-	// b = rotr64(b ^ c, 63)
-	xor0 = *vb0 ^ *vc0;
-	xor1 = *vb1 ^ *vc1;
-	*vb0 = (xor1 >> 31u) ^ (xor0 << 1u);
-	*vb1 = (xor0 >> 31u) ^ (xor1 << 1u);
-}
-
 /**
 * Main compute function
 * 8-byte work is split into two 4-byte u32. Low 4 bytes are random u32 from