From b05fa355c49c619cce1226716a395381a944f578 Mon Sep 17 00:00:00 2001
From: Sebastiano Tronto <sebastiano@tronto.net>
Date: Sat, 28 Oct 2023 20:42:24 +0200
Subject: Started working on AVX2 (not working yet)

---
 src/_move_logic_arr.c | 149 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 149 insertions(+)
 create mode 100644 src/_move_logic_arr.c

(limited to 'src/_move_logic_arr.c')

diff --git a/src/_move_logic_arr.c b/src/_move_logic_arr.c
new file mode 100644
index 0000000..d8aec10
--- /dev/null
+++ b/src/_move_logic_arr.c
@@ -0,0 +1,149 @@
+#define PERM4(r, i, j, k, l) \
+    aux = r[i];              \
+    r[i] = r[l];             \
+    r[l] = r[k];             \
+    r[k] = r[j];             \
+    r[j] = aux;
+#define PERM22(r, i, j, k, l) \
+    aux = r[i];               \
+    r[i] = r[j];              \
+    r[j] = aux;               \
+    aux = r[k];               \
+    r[k] = r[l];              \
+    r[l] = aux;
+#define CO(a, b)                         \
+    aux = (a & _cobits) + (b & _cobits); \
+    auy = (aux + _ctwist_cw) >> 2U;      \
+    auz = (aux + auy) & _cobits2;        \
+    a = (a & _pbits) | auz;
+#define CO4(r, i, j, k, l) \
+    CO(r[i], _ctwist_cw)   \
+    CO(r[j], _ctwist_cw)   \
+    CO(r[k], _ctwist_ccw)  \
+    CO(r[l], _ctwist_ccw)
+#define EO4(r, i, j, k, l) \
+    r[i] ^= _eobit;        \
+    r[j] ^= _eobit;        \
+    r[k] ^= _eobit;        \
+    r[l] ^= _eobit;
+
+uint8_t aux, auy, auz;
+cube_t ret = c;
+
+switch (m) {
+case U:
+	PERM4(ret.e, _e_uf, _e_ul, _e_ub, _e_ur)
+	PERM4(ret.c, _c_ufr, _c_ufl, _c_ubl, _c_ubr)
+
+	return ret;
+case U2:
+	PERM22(ret.e, _e_uf, _e_ub, _e_ul, _e_ur)
+	PERM22(ret.c, _c_ufr, _c_ubl, _c_ufl, _c_ubr)
+
+	return ret;
+case U3:
+	PERM4(ret.e, _e_uf, _e_ur, _e_ub, _e_ul)
+	PERM4(ret.c, _c_ufr, _c_ubr, _c_ubl, _c_ufl)
+
+	return ret;
+case D:
+	PERM4(ret.e, _e_df, _e_dr, _e_db, _e_dl)
+	PERM4(ret.c, _c_dfr, _c_dbr, _c_dbl, _c_dfl)
+
+	return ret;
+case D2:
+	PERM22(ret.e, _e_df, _e_db, _e_dr, _e_dl)
+	PERM22(ret.c, _c_dfr, _c_dbl, _c_dbr, _c_dfl)
+
+	return ret;
+case D3:
+	PERM4(ret.e, _e_df, _e_dl, _e_db, _e_dr)
+	PERM4(ret.c, _c_dfr, _c_dfl, _c_dbl, _c_dbr)
+
+	return ret;
+case R:
+	PERM4(ret.e, _e_ur, _e_br, _e_dr, _e_fr)
+	PERM4(ret.c, _c_ufr, _c_ubr, _c_dbr, _c_dfr)
+
+	CO4(ret.c, _c_ubr, _c_dfr, _c_ufr, _c_dbr)
+
+	return ret;
+case R2:
+	PERM22(ret.e, _e_ur, _e_dr, _e_fr, _e_br)
+	PERM22(ret.c, _c_ufr, _c_dbr, _c_ubr, _c_dfr)
+
+	return ret;
+case R3:
+	PERM4(ret.e, _e_ur, _e_fr, _e_dr, _e_br)
+	PERM4(ret.c, _c_ufr, _c_dfr, _c_dbr, _c_ubr)
+
+	CO4(ret.c, _c_ubr, _c_dfr, _c_ufr, _c_dbr)
+
+	return ret;
+case L:
+	PERM4(ret.e, _e_ul, _e_fl, _e_dl, _e_bl)
+	PERM4(ret.c, _c_ufl, _c_dfl, _c_dbl, _c_ubl)
+
+	CO4(ret.c, _c_ufl, _c_dbl, _c_dfl, _c_ubl)
+
+	return ret;
+case L2:
+	PERM22(ret.e, _e_ul, _e_dl, _e_fl, _e_bl)
+	PERM22(ret.c, _c_ufl, _c_dbl, _c_ubl, _c_dfl)
+
+	return ret;
+case L3:
+	PERM4(ret.e, _e_ul, _e_bl, _e_dl, _e_fl)
+	PERM4(ret.c, _c_ufl, _c_ubl, _c_dbl, _c_dfl)
+
+	CO4(ret.c, _c_ufl, _c_dbl, _c_dfl, _c_ubl)
+
+	return ret;
+case F:
+	PERM4(ret.e, _e_uf, _e_fr, _e_df, _e_fl)
+	PERM4(ret.c, _c_ufr, _c_dfr, _c_dfl, _c_ufl)
+
+	EO4(ret.e, _e_uf, _e_fr, _e_df, _e_fl)
+	CO4(ret.c, _c_ufr, _c_dfl, _c_dfr, _c_ufl)
+
+	return ret;
+case F2:
+	PERM22(ret.e, _e_uf, _e_df, _e_fr, _e_fl)
+	PERM22(ret.c, _c_ufr, _c_dfl, _c_ufl, _c_dfr)
+
+	return ret;
+case F3:
+	PERM4(ret.e, _e_uf, _e_fl, _e_df, _e_fr)
+	PERM4(ret.c, _c_ufr, _c_ufl, _c_dfl, _c_dfr)
+
+	EO4(ret.e, _e_uf, _e_fr, _e_df, _e_fl)
+	CO4(ret.c, _c_ufr, _c_dfl, _c_dfr, _c_ufl)
+
+	return ret;
+case B:
+	PERM4(ret.e, _e_ub, _e_bl, _e_db, _e_br)
+	PERM4(ret.c, _c_ubr, _c_ubl, _c_dbl, _c_dbr)
+
+	EO4(ret.e, _e_ub, _e_br, _e_db, _e_bl)
+	CO4(ret.c, _c_ubl, _c_dbr, _c_dbl, _c_ubr)
+
+	return ret;
+case B2:
+	PERM22(ret.e, _e_ub, _e_db, _e_br, _e_bl)
+	PERM22(ret.c, _c_ubr, _c_dbl, _c_ubl, _c_dbr)
+
+	return ret;
+case B3:
+	PERM4(ret.e, _e_ub, _e_br, _e_db, _e_bl)
+	PERM4(ret.c, _c_ubr, _c_dbr, _c_dbl, _c_ubl)
+
+	EO4(ret.e, _e_ub, _e_br, _e_db, _e_bl)
+	CO4(ret.c, _c_ubl, _c_dbr, _c_dbl, _c_ubr)
+
+	return ret;
+default:
+#ifdef DEBUG
+	fprintf(stderr, "mover error, unknown move\n");
+#endif
+	goto move_error;
+}
-- 
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