1 files changed, 16 insertions, 0 deletions

diff --git a/tmk_core/common/keycode.h b/tmk_core/common/keycode.h
index fd975dd6a..d5904276e 100644
--- a/tmk_core/common/keycode.h
+++ b/tmk_core/common/keycode.h
@@ -46,6 +46,22 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define MOD_BIT(code)            (1 << MOD_INDEX(code))
 #define MOD_INDEX(code)          ((code) & 0x07)
 
+#define MOD_MASK_CTRL            (MOD_BIT(KC_LCTRL)  | MOD_BIT(KC_RCTRL))
+#define MOD_MASK_SHIFT           (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT))
+#define MOD_MASK_ALT             (MOD_BIT(KC_LALT)   | MOD_BIT(KC_RALT))
+#define MOD_MASK_GUI             (MOD_BIT(KC_LGUI)   | MOD_BIT(KC_RGUI))
+#define MOD_MASK_CS              (MOD_MASK_CTRL  | MOD_MASK_SHIFT)
+#define MOD_MASK_CA              (MOD_MASK_CTRL  | MOD_MASK_ALT)
+#define MOD_MASK_CG              (MOD_MASK_CTRL  | MOD_MASK_GUI)
+#define MOD_MASK_SA              (MOD_MASK_SHIFT | MOD_MASK_ALT)
+#define MOD_MASK_SG              (MOD_MASK_SHIFT | MOD_MASK_GUI)
+#define MOD_MASK_AG              (MOD_MASK_ALT   | MOD_MASK_GUI)
+#define MOD_MASK_CSA             (MOD_MASK_CTRL  | MOD_MASK_SHIFT | MOD_MASK_ALT)
+#define MOD_MASK_CSG             (MOD_MASK_CTRL  | MOD_MASK_SHIFT | MOD_MASK_GUI)
+#define MOD_MASK_CAG             (MOD_MASK_CTRL  | MOD_MASK_ALT   | MOD_MASK_GUI)
+#define MOD_MASK_SAG             (MOD_MASK_SHIFT | MOD_MASK_ALT   | MOD_MASK_GUI)
+#define MOD_MASK_CSAG            (MOD_MASK_CTRL  | MOD_MASK_SHIFT | MOD_MASK_ALT | MOD_MASK_GUI)
+
 #define FN_BIT(code)             (1 << FN_INDEX(code))
 #define FN_INDEX(code)           ((code) - KC_FN0)
 #define FN_MIN                   KC_FN0