1 files changed, 22 insertions, 0 deletions
diff --git a/system/lib/libc/musl/src/multibyte/internal.h b/system/lib/libc/musl/src/multibyte/internal.h
new file mode 100644
index 00000000..25ba240e
--- /dev/null
+++ b/system/lib/libc/musl/src/multibyte/internal.h
@@ -0,0 +1,22 @@
+/* 
+ * This code was written by Rich Felker in 2010; no copyright is claimed.
+ * This code is in the public domain. Attribution is appreciated but
+ * unnecessary.
+ */
+
+#define bittab __fsmu8
+
+#include "libc.h"
+
+extern const uint32_t bittab[] ATTR_LIBC_VISIBILITY;
+
+/* Upper 6 state bits are a negative integer offset to bound-check next byte */
+/*    equivalent to: ( (b-0x80) | (b+offset) ) & ~0x3f      */
+#define OOB(c,b) (((((b)>>3)-0x10)|(((b)>>3)+((int32_t)(c)>>26))) & ~7)
+
+/* Interval [a,b). Either a must be 80 or b must be c0, lower 3 bits clear. */
+#define R(a,b) ((uint32_t)((a==0x80 ? 0x40-b : -a) << 23))
+#define FAILSTATE R(0x80,0x80)
+
+#define SA 0xc2u
+#define SB 0xf4u