feat(Ubiquitous/RT_Thread): port micropython on RT-Thread for aiit-board

Ubiquitous/RT_Thread/micropython/py/emitnxtensa.c

@@ -0,0 +1,20 @@
+// Xtensa specific stuff
+
+#include "py/mpconfig.h"
+
+#if MICROPY_EMIT_XTENSA
+
+// this is defined so that the assembler exports generic assembler API macros
+#define GENERIC_ASM_API (1)
+#include "py/asmxtensa.h"
+
+// Word indices of REG_LOCAL_x in nlr_buf_t
+#define NLR_BUF_IDX_LOCAL_1 (8) // a12
+#define NLR_BUF_IDX_LOCAL_2 (9) // a13
+#define NLR_BUF_IDX_LOCAL_3 (10) // a14
+
+#define N_XTENSA (1)
+#define EXPORT_FUN(name) emit_native_xtensa_##name
+#include "py/emitnative.c"
+
+#endif