Add user-bindable function to print ascii chars

firmware/asdf/src/CMakeLists.txt

@@ -74,6 +74,7 @@ list (APPEND SOURCES
   Keymaps/asdf_keymap_apple2_caps.c
   Keymaps/asdf_keymap_apple2_add_map.c
   Keymaps/asdf_keymap_sol.c
+  Keymaps/asdf_keymap_utils.c
   main.c
   )
 

firmware/asdf/src/Keymaps/asdf_keymap_apple2.c

@@ -25,11 +25,13 @@
 
 
 #include "asdf_print.h"
+#include "asdf_hook.h"
 #include "asdf_keymaps.h"
 #include "asdf_virtual.h"
 #include "asdf_modifiers.h"
 #include "asdf_keymap_apple2_add_map.h"
 #include "asdf_keymap_apple2.h"
+#include "asdf_keymap_utils.h"
 
 // PROCEDURE:
 // INPUTS:
@@ -62,6 +64,7 @@ void setup_apple2_keymap(void)
 
   asdf_hook_assign(APPLESOFT_KEYBOARD_TEST, applesoft_keyboard_test);
   asdf_hook_assign(APPLE2_ID_MESSAGE, apple2_id_message);
+  asdf_hook_assign(APPLE2_ASCII_TEST, asdf_keymap_print_characters);
 
   // Attach the physical POWER LED as the CAPS LED. Assign no triggered
   // function, and initialize to initial state of the CAPS logic. The CAPS LED

firmware/asdf/src/Keymaps/asdf_keymap_apple2.h

@@ -39,8 +39,11 @@
 #if !defined(ASDF_KEYMAP_DEFS_APPLE2_H)
 #define ASDF_KEYMAP_DEFS_APPLE2_H
 
+#include "asdf_hook.h"
+
 #define APPLESOFT_KEYBOARD_TEST ASDF_HOOK_USER_3
 #define APPLE2_ID_MESSAGE ASDF_HOOK_USER_4
+#define APPLE2_ASCII_TEST ASDF_HOOK_USER_5
 
 #define APPLE2_PRINT_DELAY 40 // msec
 

firmware/asdf/src/asdf_ascii.h

@@ -82,7 +82,9 @@ typedef enum {
   ASCII_RT_CURLY_BRACE = 0x7d,
   ASCII_TILDE = 0x7e,
   ASCII_VERT_BAR = 0x7c,
-  ASCII_DEL = 0x7f
+  ASCII_DEL = 0x7f,
+  ASCII_MAX_PRINTABLE = 0x7f,
+  ASCII_MIN_PRINTABLE = 0x20,
 } ascii_defs_t;
 
 #define ASCII_NULL 0