M .gitignore → .gitignore

@@ -1,4 +1,6 @@ 
 xyw.exe
+xyw
 *.o
 example*
 *.xim
+

A devices/console.h

@@ -0,0 +1,13 @@ 
+#include "../xyw.h"
+
+/* console device */
+#define XYW_CONSOLE_INPUT 0x0
+#define XYW_CONSOLE_OUTPUT 0x1
+#define XYW_CONSOLE_ERROR 0x2
+#define XYW_CONSOLE_ON_KEYPRESS 0x3
+
+xyw_byte console_read(xyw_byte *data, xyw_byte addr, xyw_byte *error);
+void console_write(xyw_byte *data, xyw_byte addr, xyw_byte val, xyw_byte *error);
+xyw_word console_readw(xyw_byte *data, xyw_byte addr, xyw_byte *error);
+void console_writew(xyw_byte *data, xyw_byte addr, xyw_word val, xyw_byte *error);
+

A devices/system.h

@@ -0,0 +1,7 @@ 
+#include "../xyw.h"
+
+xyw_byte system_read(xyw_byte *data, xyw_byte addr, xyw_byte *error);
+void system_write(xyw_byte *data, xyw_byte addr, xyw_byte val, xyw_byte *error);
+xyw_word system_readw(xyw_byte *data, xyw_byte addr, xyw_byte *error);
+void system_writew(xyw_byte *data, xyw_byte addr, xyw_word val, xyw_byte *error);
+

M xywrun.c → xywrun.c

@@ -333,7 +333,6 @@ 
 // clang-format on
 int xyw_run(const char *input)
 {
-
     // Load bytecode into memory
     FILE *fp = fopen(input, "rb");
     if (!fp)