uacpi: update

kernel-src/include/string.h

@@ -11,6 +11,7 @@ void *memset(void *dest, int what, size_t size);
 int strcmp(const char *a, const char *b);
 int strncmp(const char *a, const char *b, size_t c);
 int memcmp(const void *a, const void *b, size_t s);
+void *memmove(void *_d, const void *_s, size_t c);
 char *strerror(int errno);
 
 #endif

kernel-src/lib/string.c

@@ -85,6 +85,20 @@ int memcmp(const void *_a, const void *_b, size_t s) {
 	return diff;
 }
 
+void *memmove(void *_d, const void *_s, size_t c) {
+	uint8_t *d = _d;
+	const uint8_t *s = _s;
+
+	if (s > d) {
+		return memcpy(d, s, c);
+	} else while (c) {
+		d[c] = s[c];
+		--c;
+	}
+
+	return _d;
+}
+
 #define DO_NAME(e) \
 	case e: \
 		return #e;