daily update on 20240206 by nitload youmu, token parser change to use regex generator

2025-02-06 07:45:06 +08:00
parent 4e5a1b0dfb
commit 7d0470d50b
104 changed files with 2752 additions and 3134 deletions
@@ -0,0 +1,31 @@
+#include "StgSharpC.h"
+#include "ssc_intrinsic.h"
+
+int index_pair_sse(byte const *str, uint32_t target, int length)
+{
+        int index = 0, result = 0, size = length << 1, end = size - 14;
+        __m128i source = { .m128i_i32 = {
+                                   target,
+                                   target,
+                                   target,
+                                   target,
+                           } };
+        for (; (index < end) && (!result); index += 14) { // move 7*2 bytes instead of 8*2
+                __m128i vec = _mm_loadu_epi32(str + index);
+                __m128i com = _mm_cmpeq_epi32(vec, source);
+                result = _mm_movemask_epi8(com);
+        }
+        if (result) {
+                for (; result; result >> 2) {
+                        index++;
+                }
+                return index;
+        }
+        for (; (index < size - 2) && (!result); index += 2) {
+                result = *(int *)(str + index) == target;
+        }
+        if (result) {
+                return index;
+        }
+        return -1;
+}