1 files changed, 19 insertions, 0 deletions
diff --git a/fw/fe310/eos/unicode.h b/fw/fe310/eos/unicode.h
new file mode 100644
index 0000000..12fa99c
--- /dev/null
+++ b/fw/fe310/eos/unicode.h
@@ -0,0 +1,19 @@
+#include <stdint.h>
+
+#define UTF_OK      0
+#define UTF_ERR     -1
+
+typedef uint8_t utf8_t;
+typedef uint16_t utf16_t;
+typedef uint32_t utf32_t;
+
+int utf8_enc(utf32_t ch, utf8_t *str);
+int utf8_dec(utf8_t *str, utf32_t *ch);
+int utf8_len(utf8_t *str);
+int utf8_seek(utf8_t *str, int off, utf32_t *ch);
+int utf8_verify(utf8_t *str, int str_size, int *str_len);
+
+int utf16_enc(utf32_t ch, uint8_t *str);
+int utf16_dec(uint8_t *str, utf32_t *ch);
+int utf16_len(uint8_t *str);
+int utf16_seek(uint8_t *str, int off, utf32_t *ch);