Add Comet46 keyboard (#3342)

* Initial commit for Comet46 firmware

* Update Comet46 README

* Add readme to satt keymap of comet46

* Add default keymap for Comet46

* Fix broken link in readme

* Delete redundant includes

* Modify default keymap & fix LAYOUT macro

* Modify satt keymap of Comet46

7 files changed, 544 insertions, 0 deletions

diff --git a/keyboards/comet46/keymaps/default/keymap.c b/keyboards/comet46/keymaps/default/keymap.c
new file mode 100644
index 0000000000..b03ece4e95
--- /dev/null
+++ b/keyboards/comet46/keymaps/default/keymap.c
@@ -0,0 +1,103 @@
+// this is the style you want to emulate.
+// This is the canonical layout file for the Quantum project. If you want to add another keyboard,
+
+#include QMK_KEYBOARD_H
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+enum comet46_layers
+{
+    _QWERTY,
+    _LOWER,
+    _RAISE,
+};
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  LOWER,
+  RAISE,
+};
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+#define LOWER MO(_LOWER)
+#define RAISE MO(_RAISE)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+  /* Qwerty
+   * ,-----------------------------------------+                    +-----------------------------------------.
+   * | Tab  |   Q  |   W  |   E  |   R  |   T  |                    |   Y  |   U  |   I  |   O  |   P  | Bksp |
+   * |------+------+------+------+------+------+------+      +------+------+------+------+------+------+------|
+   * | Ctl  |   A  |   S  |   D  |   F  |   G  | Esc  |      | Del  |   H  |   J  |   K  |   L  |   ;  |   "  |
+   * |------+------+------+------+------+------+------+      +------+------+------+------+------+------+------|
+   * | Shift|   Z  |   X  |   C  |   V  |   B  |   {  |      |   }  |   N  |   M  |   ,  |   .  |   /  | Shift|
+   * |------+------+------+------+------+------+------+      +------+------+------+------+------+-------------|
+   *                             | GUI  | Lower| Space|      | Enter| Raise| Alt  |
+   *                             +--------------------/      \--------------------+
+   */
+  [_QWERTY] = LAYOUT(
+    KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,                             KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC,
+    KC_LCTL, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_ESC,         KC_DEL,  KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,
+    KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_LCBR,        KC_RCBR, KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT,
+                                        KC_LGUI, LOWER,   KC_SPC,         KC_ENT,  RAISE,   KC_LALT
+  ),
+
+  /* Lower
+   * ,-----------------------------------------+                    +-----------------------------------------.
+   * |      |   !  |   @  |   #  |   $  |   %  |                    |   ^  |   &  |   *  |   (  |   )  |      |
+   * |------+------+------+------+------+------+------+      +------+------+------+------+------+------+------|
+   * |      |      |      |      |      |      |      |      |   `  |   \  |   -  |   =  |   [  |   ]  |      |
+   * |------+------+------+------+------+------+------+      +------+------+------+------+------+------+------|
+   * |      |      |      |      |      |      |      |      |   ~  |   |  |   _  |   +  |   {  |   }  |      |
+   * |------+------+------+------+------+------+------+      +------+------+------+------+------+-------------|
+   *                             |      |      |      |      |      |      |      |
+   *                             +--------------------/      \--------------------+
+   */
+  [_LOWER] = LAYOUT(
+    _______, KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC,                          KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, _______,
+    _______, _______, _______, _______, _______, _______, _______,        KC_GRV,  KC_BSLS, KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC, _______,
+    _______, _______, _______, _______, _______, _______, _______,        KC_TILD, KC_PIPE, KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, _______,
+                                        _______, _______, _______,        _______, _______, _______
+  ),
+
+  /* Raise
+   * ,-----------------------------------------+                    +-----------------------------------------.
+   * |      |   1  |   2  |   3  |   4  |   5  |                    |      |      |      |      |      |      |
+   * |------+------+------+------+------+------+------+      +------+------+------+------+------+------+------|
+   * |      |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |      |      | Left | Down |  Up  |Right | End  |      |
+   * |------+------+------+------+------+------+------+      +------+------+------+------+------+------+------|
+   * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |      | Home |      |      |      |      |      |      |
+   * |------+------+------+------+------+------+------+      +------+------+------+------+------+-------------|
+   *                             |      |      |      |      |      |      |      |
+   *                             +--------------------/      \--------------------+
+   */
+  [_RAISE] = LAYOUT(
+    _______, KC_1,    KC_2,    KC_3,    KC_4,    KC_5,                             KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    _______,
+    _______, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,          XXXXXXX, KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT, KC_END,  _______,
+    _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,         KC_HOME, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, _______,
+                                        _______, _______, _______,        _______, _______, _______
+  )
+};
+
+
+void matrix_scan_user(void) {
+    uint8_t layer = biton32(layer_state);
+    switch (layer) {
+    	case _QWERTY:
+    	    set_led_green;
+    	    break;
+        case _RAISE:
+            set_led_blue;
+            break;
+        case _LOWER:
+            set_led_red;
+            break;
+        default:
+            set_led_green;
+            break;
+    }
+}
diff --git a/keyboards/comet46/keymaps/satt/action_pseudo_lut.c b/keyboards/comet46/keymaps/satt/action_pseudo_lut.c
new file mode 100644
index 0000000000..5664d4d2a5
--- /dev/null
+++ b/keyboards/comet46/keymaps/satt/action_pseudo_lut.c
@@ -0,0 +1,142 @@
+#include "quantum.h"
+#include "action_pseudo_lut.h"
+
+static uint8_t send_key_shift_bit[SHIFT_BIT_SIZE];
+
+/*
+ * Pseudo layout action.
+ * This action converts a keycode in order to output the character according to the keymap you specified
+ * still your keyboard layout recognized wrongly on your OS.
+ * Memo: Using other layer keymap to get keycode
+ */
+void action_pseudo_lut(keyrecord_t *record, uint8_t base_keymap_id, const uint16_t (*keymap)[2]) {
+    uint8_t prev_shift;
+    uint16_t keycode;
+    uint16_t pseudo_keycode;
+
+    /* get keycode from keymap you specified */
+    keycode = keymap_key_to_keycode(base_keymap_id, record->event.key);
+
+    prev_shift = keyboard_report->mods & (MOD_BIT(KC_LSFT) | MOD_BIT(KC_RSFT));
+
+    if (record->event.pressed) {
+        /* when magic commands entered, keycode does not converted */
+        if (IS_COMMAND()) {
+            if (prev_shift) {
+                add_shift_bit(keycode);
+            }
+            register_code(keycode);
+            return;
+        }
+
+        if (prev_shift) {
+            pseudo_keycode = convert_keycode(keymap, keycode, true);
+            dprintf("pressed: %02X, converted: %04X\n", keycode, pseudo_keycode);
+            add_shift_bit(keycode);
+
+            if (IS_LSFT(pseudo_keycode)) {
+                register_code(QK_LSFT ^ pseudo_keycode);
+            } else {
+                /* delete shift mod temporarily */
+                del_mods(prev_shift);
+                send_keyboard_report();
+                register_code(pseudo_keycode);
+                add_mods(prev_shift);
+                send_keyboard_report();
+            }
+        } else {
+            pseudo_keycode = convert_keycode(keymap, keycode, false);
+            dprintf("pressed: %02X, converted: %04X\n", keycode, pseudo_keycode);
+
+            if (IS_LSFT(pseudo_keycode)) {
+                add_weak_mods(MOD_BIT(KC_LSFT));
+                send_keyboard_report();
+                register_code(QK_LSFT ^ pseudo_keycode);
+                /* on Windows, prevent key repeat to avoid unintended output */
+                unregister_code(QK_LSFT ^ pseudo_keycode);
+                del_weak_mods(MOD_BIT(KC_LSFT));
+                send_keyboard_report();
+            } else {
+                register_code(pseudo_keycode);
+            }
+        }
+    } else {
+        if (get_shift_bit(keycode)) {
+            del_shift_bit(keycode);
+            pseudo_keycode = convert_keycode(keymap, keycode, true);
+        } else {
+            pseudo_keycode = convert_keycode(keymap, keycode, false);
+        }
+        dprintf("released: %02X, converted: %04X\n", keycode, pseudo_keycode);
+
+        if (IS_LSFT(pseudo_keycode)) {
+            unregister_code(QK_LSFT ^ pseudo_keycode);
+        } else {
+            unregister_code(pseudo_keycode);
+        }
+    }
+}
+
+uint16_t convert_keycode(const uint16_t (*keymap)[2], uint16_t keycode, bool shift_modded)
+{
+    uint16_t pseudo_keycode;
+
+    switch (keycode) {
+        case KC_A ... KC_CAPSLOCK:
+#if defined(__AVR__)
+            if (shift_modded) {
+                pseudo_keycode = pgm_read_word(&keymap[keycode][1]);
+            } else {
+                pseudo_keycode = pgm_read_word(&keymap[keycode][0]);
+            }
+#else
+            if (shift_modded) {
+                pseudo_keycode = keymap[keycode][1];
+            } else {
+                pseudo_keycode = keymap[keycode][0];
+            }
+#endif
+            /* if undefined, use got keycode as it is */
+            if (pseudo_keycode == 0x00) {
+                if (shift_modded) {
+                    pseudo_keycode = S(keycode);
+                } else {
+                    pseudo_keycode = keycode;
+                }
+            }
+            break;
+        default:
+            if (shift_modded) {
+                pseudo_keycode = S(keycode);
+            } else {
+                pseudo_keycode = keycode;
+            }
+            break;
+    }
+    return pseudo_keycode;
+}
+
+uint8_t get_shift_bit(uint16_t keycode) {
+    if ((keycode >> 3) < SHIFT_BIT_SIZE) {
+        return send_key_shift_bit[keycode >> 3] & (1 << (keycode & 7));
+    } else {
+        dprintf("get_shift_bit: Can't get shift bit. keycode: %02X\n", keycode);
+        return 0;
+    }
+}
+
+void add_shift_bit(uint16_t keycode) {
+    if ((keycode >> 3) < SHIFT_BIT_SIZE) {
+        send_key_shift_bit[keycode >> 3] |= (1 << (keycode & 7));
+    } else {
+        dprintf("add_shift_bit: Can't add shift bit. keycode: %02X\n", keycode);
+    }
+}
+
+void del_shift_bit(uint16_t keycode) {
+    if ((keycode >> 3) < SHIFT_BIT_SIZE) {
+        send_key_shift_bit[keycode >> 3] &= ~(1 << (keycode & 7));
+    } else {
+        dprintf("del_shift_bit: Can't delete shift bit. keycode: %02X\n", keycode);
+    }
+}
diff --git a/keyboards/comet46/keymaps/satt/action_pseudo_lut.h b/keyboards/comet46/keymaps/satt/action_pseudo_lut.h
new file mode 100644
index 0000000000..681252440f
--- /dev/null
+++ b/keyboards/comet46/keymaps/satt/action_pseudo_lut.h
@@ -0,0 +1,15 @@
+#ifndef ACTION_PSEUDO_LUT_H
+#define ACTION_PSEUDO_LUT_H
+
+#define SHIFT_BIT_SIZE (0xE7 / 8 + 1) // 1bit per 1key
+
+#define IS_LSFT(kc) ((QK_LSFT & (kc)) == QK_LSFT)
+
+void action_pseudo_lut(keyrecord_t *, uint8_t, const uint16_t (*)[2]);
+uint16_t convert_keycode(const uint16_t (*)[2], uint16_t, bool);
+
+uint8_t get_shift_bit(uint16_t);
+void add_shift_bit(uint16_t);
+void del_shift_bit(uint16_t);
+
+#endif
diff --git a/keyboards/comet46/keymaps/satt/keymap.c b/keyboards/comet46/keymaps/satt/keymap.c
new file mode 100644
index 0000000000..7e728e5d08
--- /dev/null
+++ b/keyboards/comet46/keymaps/satt/keymap.c
@@ -0,0 +1,220 @@
+// this is the style you want to emulate.
+// This is the canonical layout file for the Quantum project. If you want to add another keyboard,
+
+#include QMK_KEYBOARD_H
+#include "keymap_jis2us.h"
+#include "action_pseudo_lut.h"
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+enum comet46_layers {
+    _QWERTY,
+    _LOWER,
+    _RAISE,
+    _PSEUDO_US,
+    _PSEUDO_US_LOWER,
+    _PSEUDO_US_RAISE,
+    _ADJUST
+};
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  PSEUDO_US,
+};
+
+#define KC_LWR MO(_LOWER)
+#define KC_RSE MO(_RAISE)
+#define KC_P_LW MO(_PSEUDO_US_LOWER)
+#define KC_P_RS MO(_PSEUDO_US_RAISE)
+#define KC_QWRT QWERTY
+#define KC_P_US PSEUDO_US
+#define KC_SPCT CTL_T(KC_SPC)
+#define KC_ENSF SFT_T(KC_ENT)
+#define KC_SFTA SFT_T(KC_A)
+#define KC_CTSF S(KC_LCTL)
+#define KC_IMON ALT_T(KC_F13)
+#define KC_IMOF GUI_T(KC_F14)
+#define KC_SRO S(KC_RO)
+#define KC_SYEN S(KC_JYEN)
+#define KC_CAD LCA(KC_DEL)
+#define KC_RST RESET
+
+#define LONGPRESS_DELAY 150
+
+// Fillers to make layering more clear
+#define KC_ KC_TRNS 
+#define KC_XXXX KC_NO
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+  [_QWERTY] = LAYOUT_kc(  
+  //,----+----+----+----+----+----+               +----+----+----+----+----+----.
+     ESC , Q  , W  , E  , R  , T  ,                 Y  , U  , I  , O  , P  ,DEL ,
+  //|----+----+----+----+----+----+----+     +----+----+----+----+----+----+----|
+     TAB ,SFTA, S  , D  , F  , G  ,LPRN,      RPRN, H  , J  , K  , L  ,SCLN,BSPC,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+     CTSF, Z  , X  , C  , V  , B  ,LBRC,      RBRC, N  , M  ,COMM,DOT ,SLSH,QUOT,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+                         IMOF,LWR ,SPCT,      ENSF,RSE ,IMON
+  //                    +----+----+---/       \---+----+----+
+  ),
+
+  [_LOWER] = LAYOUT_kc(  
+  //,----+----+----+----+----+----+               +----+----+----+----+----+----.
+         ,EXLM, AT ,HASH,DLR ,PERC,                CIRC,AMPR,ASTR,LPRN,RPRN,    ,
+  //|----+----+----+----+----+----+----+     +----+----+----+----+----+----+----|
+         , F1 , F2 , F3 , F4 , F5 , F6 ,      GRV ,BSLS,MINS,EQL ,LBRC,RBRC,    ,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+         , F7 , F8 , F9 , F10, F11, F12,      TILD,PIPE,UNDS,PLUS,LCBR,RCBR,    ,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+                             ,    ,    ,          ,    ,    
+  //                    +----+----+---/       \---+----+----+
+  ),
+
+  [_RAISE] = LAYOUT_kc(  
+  //,----+----+----+----+----+----+               +----+----+----+----+----+----.
+         , 1  , 2  , 3  , 4  , 5  ,                 6  , 7  , 8  , 9  , 0  ,    ,
+  //|----+----+----+----+----+----+----+     +----+----+----+----+----+----+----|
+         ,    ,    ,    ,    ,    ,    ,      XXXX,LEFT,DOWN, UP ,RGHT,END ,    ,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+         ,    ,    ,    ,    ,    ,    ,      HOME,XXXX,XXXX,XXXX,XXXX,XXXX,    ,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+                             ,    ,    ,          ,    ,    
+  //                    +----+----+---/       \---+----+----+
+  ),
+
+  [_PSEUDO_US] = LAYOUT_kc(  
+  //,----+----+----+----+----+----+               +----+----+----+----+----+----.
+     ESC , Q  , W  , E  , R  , T  ,                 Y  , U  , I  , O  , P  ,DEL ,
+  //|----+----+----+----+----+----+----+     +----+----+----+----+----+----+----|
+     TAB ,SFTA, S  , D  , F  , G  ,ASTR,      LPRN, H  , J  , K  , L  ,FN0 ,BSPC,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+     CTSF, Z  , X  , C  , V  , B  ,FN0 ,      FN0 , N  , M  ,COMM,DOT ,SLSH,FN0 ,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+                         IMOF,P_LW,SPCT,      ENSF,P_RS,IMON
+  //                    +----+----+---/       \---+----+----+
+  ),
+
+
+  [_PSEUDO_US_LOWER] = LAYOUT_kc(  
+  //,----+----+----+----+----+----+               +----+----+----+----+----+----.
+         ,EXLM,LBRC,HASH,DLR ,PERC,                EQL ,CIRC, DQT,ASTR,LPRN,    ,
+  //|----+----+----+----+----+----+----+     +----+----+----+----+----+----+----|
+         , F1 , F2 , F3 , F4 , F5 , F6 ,      LCBR,JYEN,MINS,UNDS,RBRC,BSLS,    ,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+         , F7 , F8 , F9 , F10, F11, F12,      PLUS,SYEN,SRO ,COLN,RCBR,PIPE,    ,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+                             ,    ,    ,          ,    ,    
+  //                    +----+----+---/       \---+----+----+
+  ),
+
+  [_PSEUDO_US_RAISE] = LAYOUT_kc(  
+  //,----+----+----+----+----+----+               +----+----+----+----+----+----.
+         , 1  , 2  , 3  , 4  , 5  ,                 6  , 7  , 8  , 9  , 0  ,    ,
+  //|----+----+----+----+----+----+----+     +----+----+----+----+----+----+----|
+         ,    ,    ,    ,    ,    , GRV,      XXXX,LEFT,DOWN, UP ,RGHT,END ,    ,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+         ,    ,    ,    ,    ,    ,    ,      HOME,XXXX,XXXX,XXXX,XXXX,XXXX,    ,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+                             ,    ,    ,          ,    ,    
+  //                    +----+----+---/       \---+----+----+
+  ),
+
+  [_ADJUST] = LAYOUT_kc(  
+  //,----+----+----+----+----+----+               +----+----+----+----+----+----.
+         ,    ,    ,    ,    ,    ,                    ,    ,    ,    ,    ,    ,
+  //|----+----+----+----+----+----+----+     +----+----+----+----+----+----+----|
+         ,    ,    ,    ,    ,    ,CAD ,      QWRT,    ,    ,    ,    ,    ,    ,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+         ,    ,    ,    ,    ,    ,RST ,      P_US,    ,    ,    ,    ,    ,    ,
+  //|----+----+----+----+----+----+----|     |----+----+----+----+----+----+----|
+                             ,    ,    ,          ,    ,    
+  //                    +----+----+---/       \---+----+----+
+  )
+
+};
+
+
+/*
+ * user defined action function
+ */
+enum function_id {
+    PSEUDO_US_FUNCTION,
+};
+
+void action_function(keyrecord_t *record, uint8_t id, uint8_t opt) {
+    switch (id)
+    {
+    case PSEUDO_US_FUNCTION:
+        action_pseudo_lut(record, _QWERTY, keymap_jis2us);
+        break;
+    }
+}
+
+/*
+ * Fn action definition
+ */
+const uint16_t PROGMEM fn_actions[] = {
+    [0] = ACTION_FUNCTION(PSEUDO_US_FUNCTION),
+};
+
+void matrix_scan_user(void) {
+    uint8_t layer = biton32(layer_state);
+    switch (layer) {
+      case _LOWER:
+          set_led_red;
+          break;
+      case _RAISE:
+          set_led_blue;
+          break;
+      case _PSEUDO_US_LOWER:
+          set_led_yellow;
+          break;
+      case _PSEUDO_US_RAISE:
+          set_led_cyan;
+          break;
+      case _ADJUST:
+          set_led_magenta;
+          break;
+      default:
+          set_led_green;
+          break;
+    }
+};
+
+uint32_t layer_state_set_user(uint32_t state) {
+  switch (biton32(state)) {
+    case _PSEUDO_US:
+      return update_tri_layer_state(state, _PSEUDO_US_RAISE, _PSEUDO_US_LOWER, _ADJUST);
+      break;
+    case _PSEUDO_US_LOWER:
+      return update_tri_layer_state(state, _PSEUDO_US_RAISE, _PSEUDO_US_LOWER, _ADJUST);
+      break;
+    case _PSEUDO_US_RAISE: 
+      return update_tri_layer_state(state, _PSEUDO_US_RAISE, _PSEUDO_US_LOWER, _ADJUST);
+      break;
+    default:
+      return update_tri_layer_state(state, _RAISE, _LOWER, _ADJUST);
+      break;
+  }
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        set_single_persistent_default_layer(_QWERTY);
+      }
+      return false;
+      break;
+    case PSEUDO_US:
+      if (record->event.pressed) {
+        set_single_persistent_default_layer(_PSEUDO_US);
+      }
+      return false;
+      break;
+  }
+  return true;
+}
diff --git a/keyboards/comet46/keymaps/satt/keymap_jis2us.h b/keyboards/comet46/keymaps/satt/keymap_jis2us.h
new file mode 100644
index 0000000000..cf2bd4f0e8
--- /dev/null
+++ b/keyboards/comet46/keymaps/satt/keymap_jis2us.h
@@ -0,0 +1,32 @@
+#ifndef KEYMAP_JIS2US_H
+#define KEYMAP_JIS2US_H
+
+/* keymap for convert from JIS to US */
+const uint16_t PROGMEM keymap_jis2us[][2] = {
+    [KC_A ... KC_CAPS] = { 0x00, 0x00 }, /* default value */
+
+    [KC_1]    = { KC_1,    KC_EXLM    }, /* 1 and ! -> 1 and ! */
+    [KC_2]    = { KC_2,    KC_LBRC    }, /* 2 and " -> 2 and @ */
+    [KC_3]    = { KC_3,    KC_HASH    }, /* 3 and # -> 3 and # */
+    [KC_4]    = { KC_4,    KC_DLR     }, /* 4 and $ -> 4 and $ */
+    [KC_5]    = { KC_5,    KC_PERC    }, /* 5 and % -> 5 and % */
+    [KC_6]    = { KC_6,    KC_EQL     }, /* 6 and & -> 6 and ^ */
+    [KC_7]    = { KC_7,    KC_CIRC    }, /* 7 and ' -> 7 and & */
+    [KC_8]    = { KC_8,    KC_DQT     }, /* 8 and ( -> 8 and * */
+    [KC_9]    = { KC_9,    KC_ASTR    }, /* 9 and ) -> 9 and ( */
+    [KC_0]    = { KC_0,    KC_LPRN    }, /* 0 and (no assign) -> 0 and ) */
+    [KC_MINS] = { KC_MINS, S(KC_RO)   }, /* - and = -> - and _ */
+    [KC_EQL]  = { KC_UNDS, KC_COLN    }, /* ^ and ~ -> = and + */
+    [KC_LBRC] = { KC_RBRC, KC_RCBR    }, /* @ and ` -> [ and { */
+    [KC_RBRC] = { KC_BSLS, KC_PIPE    }, /* [ and { -> ] and } */
+    [KC_BSLS] = { KC_JYEN, S(KC_JYEN) }, /* ] and } -> / and | */
+    [KC_NUHS] = { KC_NUHS, S(KC_NUHS) }, /* (no assign) */
+    [KC_SCLN] = { KC_SCLN, KC_QUOT    }, /* ; and + -> ; and : */
+    [KC_QUOT] = { KC_AMPR, KC_AT      }, /* : and * -> ' and " */
+    [KC_GRV]  = { KC_LCBR, KC_PLUS    }, /* (no assign) -> ` and ~ */
+    [KC_COMM] = { KC_COMM, KC_LT      }, /* , and < -> , and < */
+    [KC_DOT]  = { KC_DOT,  KC_GT      }, /* . and > -> . and > */
+    [KC_SLSH] = { KC_SLSH, KC_QUES    }, /* / and ? -> / and ? */
+};
+
+#endif
diff --git a/keyboards/comet46/keymaps/satt/readme.md b/keyboards/comet46/keymaps/satt/readme.md
new file mode 100644
index 0000000000..33bbad3264
--- /dev/null
+++ b/keyboards/comet46/keymaps/satt/readme.md
@@ -0,0 +1,6 @@
+## Pseudo US Layout
+
+On a Japanese Windows environment, ANSI keyboards may be recognized wrongly as a JIS keyboard.  
+By using this code, you can use your ANSI keyboard under a JIS keyboard environment without changing the settings and registry of your environment.
+
+Original code by [Shela](https://github.com/qmk/qmk_firmware/tree/master/keyboards/hhkb/keymaps/shela)
diff --git a/keyboards/comet46/keymaps/satt/rules.mk b/keyboards/comet46/keymaps/satt/rules.mk
new file mode 100644
index 0000000000..08af2e70a4
--- /dev/null
+++ b/keyboards/comet46/keymaps/satt/rules.mk
@@ -0,0 +1,26 @@
+SRC += action_pseudo_lut.c
+
+# Build Options
+#   change to "no" to disable the options, or define them in the Makefile in
+#   the appropriate keymap folder that will get included automatically
+#
+BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE = no       # Mouse keys(+4700)
+EXTRAKEY_ENABLE = no       # Audio control and System control(+450)
+CONSOLE_ENABLE = no         # Console for debug(+400)
+COMMAND_ENABLE = no        # Commands for debug and configuration
+NKRO_ENABLE = no            # Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+BACKLIGHT_ENABLE = no      # Enable keyboard backlight functionality
+MIDI_ENABLE = no            # MIDI controls
+AUDIO_ENABLE = no           # Audio output on port C6
+UNICODE_ENABLE = no         # Unicode
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+RGBLIGHT_ENABLE = no        # Enable WS2812 RGB underlight.  Do not enable this with audio at the same time.
+ONEHAND_ENABLE = no        # Enable one-hand typing
+
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
+
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif