From 33f0763a0b4ec7e73dc7c9877c29c83dec05d157 Mon Sep 17 00:00:00 2001
From: Leonid Evdokimov <leon@darkk.net.ru>
Date: Thu, 26 Sep 2024 17:18:03 +0300
Subject: [PATCH] NMHASH32: WIP-N+1

---
 Hashes.cpp | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/Hashes.cpp b/Hashes.cpp
index c3559370..2f62865d 100644
--- a/Hashes.cpp
+++ b/Hashes.cpp
@@ -1302,6 +1302,28 @@ void nmhash32_test ( const void * key, int len, uint32_t seed, void * out ) {
       printf("NMHASH32_long(rand_str, %u, 42) = %x\n", count, x);
 
       uint32_t oh;
+      memcpy(accX, &rand_str[11], sizeof(accX));
+      memcpy(accY, &rand_str[23], sizeof(accY));
+
+        for (unsigned i = 0; i < COUNT_OF(accX); i++)
+            printf("0: %4d %08x\n", i, accX[i]);
+	const size_t nbGroups = sizeof(NMH_ACC_INIT) / sizeof(*NMH_ACC_INIT);
+	size_t i;
+	for (i = 0; i < nbGroups; ++i) {
+		accX[i] ^= accX[i] << 5 ^ accX[i] >> 13; // ??
+	}
+        for (unsigned i = 0; i < COUNT_OF(accX); i++)
+            printf("1: %4d %08x\n", i, accX[i]);
+	for (i = 0; i < nbGroups; ++i) {
+		accX[i] ^= accX[i] << 11 ^ accX[i] >> 9; // ???
+	}
+        for (unsigned i = 0; i < COUNT_OF(accX); i++)
+            printf("2: %4d %08x\n", i, accX[i]);
+	for (i = 0; i < nbGroups; ++i) {
+		accX[i] ^= accX[i] >> 10 ^ accX[i] >> 20; // ???
+	}
+        for (unsigned i = 0; i < COUNT_OF(accX); i++)
+            printf("3: %4d %08x\n", i, accX[i]);
       sumhash32(accX, sizeof(accX), 0, &oh); printf("sumhash32(accX) = %x\n", oh);
       sumhash32(accY, sizeof(accY), 0, &oh); printf("sumhash32(accY) = %x\n", oh);
       NMHASH32_long_round(accX, accY, reinterpret_cast<const uint8_t*>(rand_str));