git.y1.nz

commit 5194a41d9997a1f21d2a8d99b6a2cb98d64c3434
parent 7efd26c548f3ce1f1969a53c7ce5b1ed96a42f7b
Author: Lior Halphon <LIJI32@gmail.com>
Date:   Sun, 28 Aug 2022 16:48:20 +0300

Slight improvements to symbol hash performance

Diffstat:
M
Core/symbol_hash.c
8
++++----
M
Core/symbol_hash.h
2
+-

2 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/Core/symbol_hash.c b/Core/symbol_hash.c
@@ -77,13 +77,13 @@ static unsigned hash_name(const char *name)
     unsigned r = 0;
     while (*name) {
         r <<= 1;
-        if (r & 0x400) {
-            r ^= 0x401;
+        if (r & 0x2000) {
+            r ^= 0x2001;
         }
-        r += (unsigned char)*(name++);
+        r ^= (unsigned char)*(name++);
     }
 
-    return r & 0x3FF;
+    return r;
 }
 
 void GB_reversed_map_add_symbol(GB_reversed_symbol_map_t *map, uint16_t bank, GB_bank_symbol_t *bank_symbol)
diff --git a/Core/symbol_hash.h b/Core/symbol_hash.h
@@ -23,7 +23,7 @@ typedef struct {
 } GB_symbol_map_t;
 
 typedef struct {
-    GB_symbol_t *buckets[0x400];
+    GB_symbol_t *buckets[0x2000];
 } GB_reversed_symbol_map_t;
 
 #ifdef GB_INTERNAL

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