1 files changed, 17 insertions, 0 deletions

diff --git a/src/arch/common.h b/src/arch/common.h
index 802790c..52e0fc7 100644
--- a/src/arch/common.h
+++ b/src/arch/common.h
@@ -1,3 +1,5 @@
+STATIC_INLINE int popcount_u32(uint32_t);
+
 STATIC void pieces(cube_t *, uint8_t [static 8], uint8_t [static 12]);
 STATIC_INLINE bool equal(cube_t, cube_t);
 STATIC_INLINE cube_t invertco(cube_t);
@@ -18,6 +20,7 @@ STATIC_INLINE void set_eo(cube_t *, int64_t);
 STATIC_INLINE cube_t invcoord_esep(int64_t);
 
 STATIC_INLINE void invcoord_esep_array(int64_t, int64_t, uint8_t[static 12]);
+STATIC_INLINE cube_t invcoord_eoesep(int64_t);
 
 STATIC_INLINE void
 invcoord_esep_array(int64_t set1, int64_t set2, uint8_t mem[static 12])
@@ -44,3 +47,17 @@ invcoord_esep_array(int64_t set1, int64_t set2, uint8_t mem[static 12])
                 mem[i] = (slice[s]++) | (uint8_t)(s << 2);
         }
 }
+
+STATIC_INLINE cube_t
+invcoord_eoesep(int64_t i)
+{
+        cube_t c;
+        int64_t esep, eo;
+
+        esep = i >> INT64_C(11);
+        eo = i % POW_2_11;
+        c = invcoord_esep(esep);
+        set_eo(&c, eo);
+
+        return c;
+}