diff --git a/libs/fe.cu b/libs/fe.cu
index 6b6593a..ada4a04 100644
--- a/libs/fe.cu
+++ b/libs/fe.cu
@@ -1,23 +1,22 @@
 #include <fe.cuh>
-void __host__ __device__ fe_1(fe h) {
+void __host__ __device__ fe_1(fe __restrict__ h) {
     h[0] = 1;
-#pragma unroll 10
+#pragma unroll 9
     for (int i = 1; i < 10; i++) h[i] = 0;
 }
-void __host__ __device__ fe_add(int h[10], const fe& f, const fe& g) {
+void __host__ __device__ fe_add(fe __restrict__ h, const fe& __restrict__ f, const fe& __restrict__ g) {
 #pragma unroll 10
     for (int i = 0; i < 10; i++) h[i] = f[i] + g[i];
 }
 void __host__ __device__ fe_cmov(fe f, const fe& g, unsigned int b) {
-    int mask = -((int)b);
 #pragma unroll 10
-    for (int i = 0; i < 10; i++) f[i] ^= mask & (f[i] ^ g[i]);
+    for (int i = 0; i < 10; i++) f[i] ^= -static_cast<int>(b) & (f[i] ^ g[i]);
 }
-void __host__ __device__ fe_copy(fe h, const fe& f) {
+void __host__ __device__ fe_copy(fe __restrict__ h, const fe& __restrict__ f) {
 #pragma unroll 10
     for (int i = 0; i < 10; i++) h[i] = f[i];
 }
-void fe_invert(fe out, const fe& z) {
+void fe_invert(fe __restrict__ out, const fe& __restrict__ z) {
     fe t0;
     fe t1;
     fe t2;
@@ -90,302 +89,65 @@ void fe_invert(fe out, const fe& z) {
     }
     fe_mul(out, t1, t0);
 }
-int __host__ __device__ fe_isnegative(const fe& f) {
+int __host__ __device__ fe_isnegative(const fe& __restrict__ f) {
     unsigned char s[32];
     fe_tobytes(s, f);
     return s[0] & 1;
 }
-__device__ __host__ void fe_mul(fe h, const fe& f, const fe& g) {
-    const long f0g0 = static_cast<long>(f[0]) * static_cast<long>(g[0]);
-    const long f0g1 = static_cast<long>(f[0]) * static_cast<long>(g[1]);
-    const long f0g2 = static_cast<long>(f[0]) * static_cast<long>(g[2]);
-    const long f0g3 = static_cast<long>(f[0]) * static_cast<long>(g[3]);
-    const long f0g4 = static_cast<long>(f[0]) * static_cast<long>(g[4]);
-    const long f0g5 = static_cast<long>(f[0]) * static_cast<long>(g[5]);
-    const long f0g6 = static_cast<long>(f[0]) * static_cast<long>(g[6]);
-    const long f0g7 = static_cast<long>(f[0]) * static_cast<long>(g[7]);
-    const long f0g8 = static_cast<long>(f[0]) * static_cast<long>(g[8]);
-    const long f0g9 = static_cast<long>(f[0]) * static_cast<long>(g[9]);
-    const long f1g0 = static_cast<long>(f[1]) * static_cast<long>(g[0]);
-    const long f1g1_2 = static_cast<long>(2 * f[1]) * static_cast<long>(g[1]);
-    const long f1g2 = static_cast<long>(f[1]) * static_cast<long>(g[2]);
-    const long f1g3_2 = static_cast<long>(2 * f[1]) * static_cast<long>(g[3]);
-    const long f1g4 = static_cast<long>(f[1]) * static_cast<long>(g[4]);
-    const long f1g5_2 = static_cast<long>(2 * f[1]) * static_cast<long>(g[5]);
-    const long f1g6 = static_cast<long>(f[1]) * static_cast<long>(g[6]);
-    const long f1g7_2 = static_cast<long>(2 * f[1]) * static_cast<long>(g[7]);
-    const long f1g8 = static_cast<long>(f[1]) * static_cast<long>(g[8]);
-    const long f1g9_38 = static_cast<long>(2 * f[1]) * static_cast<long>(19 * g[9]);
-    const long f2g0 = static_cast<long>(f[2]) * static_cast<long>(g[0]);
-    const long f2g1 = static_cast<long>(f[2]) * static_cast<long>(g[1]);
-    const long f2g2 = static_cast<long>(f[2]) * static_cast<long>(g[2]);
-    const long f2g3 = static_cast<long>(f[2]) * static_cast<long>(g[3]);
-    const long f2g4 = static_cast<long>(f[2]) * static_cast<long>(g[4]);
-    const long f2g5 = static_cast<long>(f[2]) * static_cast<long>(g[5]);
-    const long f2g6 = static_cast<long>(f[2]) * static_cast<long>(g[6]);
-    const long f2g7 = static_cast<long>(f[2]) * static_cast<long>(g[7]);
-    const long f2g8_19 = static_cast<long>(f[2]) * static_cast<long>(19 * g[8]);
-    const long f2g9_19 = static_cast<long>(f[2]) * static_cast<long>(19 * g[9]);
-    const long f3g0 = static_cast<long>(f[3]) * static_cast<long>(g[0]);
-    const long f3g1_2 = static_cast<long>(2 * f[3]) * static_cast<long>(g[1]);
-    const long f3g2 = static_cast<long>(f[3]) * static_cast<long>(g[2]);
-    const long f3g3_2 = static_cast<long>(2 * f[3]) * static_cast<long>(g[3]);
-    const long f3g4 = static_cast<long>(f[3]) * static_cast<long>(g[4]);
-    const long f3g5_2 = static_cast<long>(2 * f[3]) * static_cast<long>(g[5]);
-    const long f3g6 = static_cast<long>(f[3]) * static_cast<long>(g[6]);
-    const long f3g7_38 = static_cast<long>(2 * f[3]) * static_cast<long>(19 * g[7]);
-    const long f3g8_19 = static_cast<long>(f[3]) * static_cast<long>(19 * g[8]);
-    const long f3g9_38 = static_cast<long>(2 * f[3]) * static_cast<long>(19 * g[9]);
-    const long f4g0 = static_cast<long>(f[4]) * static_cast<long>(g[0]);
-    const long f4g1 = static_cast<long>(f[4]) * static_cast<long>(g[1]);
-    const long f4g2 = static_cast<long>(f[4]) * static_cast<long>(g[2]);
-    const long f4g3 = static_cast<long>(f[4]) * static_cast<long>(g[3]);
-    const long f4g4 = static_cast<long>(f[4]) * static_cast<long>(g[4]);
-    const long f4g5 = static_cast<long>(f[4]) * static_cast<long>(g[5]);
-    const long f4g6_19 = static_cast<long>(f[4]) * static_cast<long>(19 * g[6]);
-    const long f4g7_19 = static_cast<long>(f[4]) * static_cast<long>(19 * g[7]);
-    const long f4g8_19 = static_cast<long>(f[4]) * static_cast<long>(19 * g[8]);
-    const long f4g9_19 = static_cast<long>(f[4]) * static_cast<long>(19 * g[9]);
-    const long f5g0 = static_cast<long>(f[5]) * static_cast<long>(g[0]);
-    const long f5g1_2 = static_cast<long>(2 * f[5]) * static_cast<long>(g[1]);
-    const long f5g2 = static_cast<long>(f[5]) * static_cast<long>(g[2]);
-    const long f5g3_2 = static_cast<long>(2 * f[5]) * static_cast<long>(g[3]);
-    const long f5g4 = static_cast<long>(f[5]) * static_cast<long>(g[4]);
-    const long f5g5_38 = static_cast<long>(2 * f[5]) * static_cast<long>(19 * g[5]);
-    const long f5g6_19 = static_cast<long>(f[5]) * static_cast<long>(19 * g[6]);
-    const long f5g7_38 = static_cast<long>(2 * f[5]) * static_cast<long>(19 * g[7]);
-    const long f5g8_19 = static_cast<long>(f[5]) * static_cast<long>(19 * g[8]);
-    const long f5g9_38 = static_cast<long>(2 * f[5]) * static_cast<long>(19 * g[9]);
-    const long f6g0 = static_cast<long>(f[6]) * static_cast<long>(g[0]);
-    const long f6g1 = static_cast<long>(f[6]) * static_cast<long>(g[1]);
-    const long f6g2 = static_cast<long>(f[6]) * static_cast<long>(g[2]);
-    const long f6g3 = static_cast<long>(f[6]) * static_cast<long>(g[3]);
-    const long f6g4_19 = static_cast<long>(f[6]) * static_cast<long>(19 * g[4]);
-    const long f6g5_19 = static_cast<long>(f[6]) * static_cast<long>(19 * g[5]);
-    const long f6g6_19 = static_cast<long>(f[6]) * static_cast<long>(19 * g[6]);
-    const long f6g7_19 = static_cast<long>(f[6]) * static_cast<long>(19 * g[7]);
-    const long f6g8_19 = static_cast<long>(f[6]) * static_cast<long>(19 * g[8]);
-    const long f6g9_19 = static_cast<long>(f[6]) * static_cast<long>(19 * g[9]);
-    const long f7g0 = static_cast<long>(f[7]) * static_cast<long>(g[0]);
-    const long f7g1_2 = static_cast<long>(2 * f[7]) * static_cast<long>(g[1]);
-    const long f7g2 = static_cast<long>(f[7]) * static_cast<long>(g[2]);
-    const long f7g3_38 = static_cast<long>(2 * f[7]) * static_cast<long>(19 * g[3]);
-    const long f7g4_19 = static_cast<long>(f[7]) * static_cast<long>(19 * g[4]);
-    const long f7g5_38 = static_cast<long>(2 * f[7]) * static_cast<long>(19 * g[5]);
-    const long f7g6_19 = static_cast<long>(f[7]) * static_cast<long>(19 * g[6]);
-    const long f7g7_38 = static_cast<long>(2 * f[7]) * static_cast<long>(19 * g[7]);
-    const long f7g8_19 = static_cast<long>(f[7]) * static_cast<long>(19 * g[8]);
-    const long f7g9_38 = static_cast<long>(2 * f[7]) * static_cast<long>(19 * g[9]);
-    const long f8g0 = static_cast<long>(f[8]) * static_cast<long>(g[0]);
-    const long f8g1 = static_cast<long>(f[8]) * static_cast<long>(g[1]);
-    const long f8g2_19 = static_cast<long>(f[8]) * static_cast<long>(19 * g[2]);
-    const long f8g3_19 = static_cast<long>(f[8]) * static_cast<long>(19 * g[3]);
-    const long f8g4_19 = static_cast<long>(f[8]) * static_cast<long>(19 * g[4]);
-    const long f8g5_19 = static_cast<long>(f[8]) * static_cast<long>(19 * g[5]);
-    const long f8g6_19 = static_cast<long>(f[8]) * static_cast<long>(19 * g[6]);
-    const long f8g7_19 = static_cast<long>(f[8]) * static_cast<long>(19 * g[7]);
-    const long f8g8_19 = static_cast<long>(f[8]) * static_cast<long>(19 * g[8]);
-    const long f8g9_19 = static_cast<long>(f[8]) * static_cast<long>(19 * g[9]);
-    const long f9g0 = static_cast<long>(f[9]) * static_cast<long>(g[0]);
-    const long f9g1_38 = static_cast<long>(2 * f[9]) * static_cast<long>(19 * g[1]);
-    const long f9g2_19 = static_cast<long>(f[9]) * static_cast<long>(19 * g[2]);
-    const long f9g3_38 = static_cast<long>(2 * f[9]) * static_cast<long>(19 * g[3]);
-    const long f9g4_19 = static_cast<long>(f[9]) * static_cast<long>(19 * g[4]);
-    const long f9g5_38 = static_cast<long>(2 * f[9]) * static_cast<long>(19 * g[5]);
-    const long f9g6_19 = static_cast<long>(f[9]) * static_cast<long>(19 * g[6]);
-    const long f9g7_38 = static_cast<long>(2 * f[9]) * static_cast<long>(19 * g[7]);
-    const long f9g8_19 = static_cast<long>(f[9]) * static_cast<long>(19 * g[8]);
-    const long f9g9_38 = static_cast<long>(2 * f[9]) * static_cast<long>(19 * g[9]);
-    long h0_val = f0g0 + f1g9_38 + f2g8_19 + f3g7_38 + f4g6_19 + f5g5_38 + f6g4_19 + f7g3_38 + f8g2_19 + f9g1_38;
-    long h1_val = f0g1 + f1g0 + f2g9_19 + f3g8_19 + f4g7_19 + f5g6_19 + f6g5_19 + f7g4_19 + f8g3_19 + f9g2_19;
-    long h2_val = f0g2 + f1g1_2 + f2g0 + f3g9_38 + f4g8_19 + f5g7_38 + f6g6_19 + f7g5_38 + f8g4_19 + f9g3_38;
-    long h3_val = f0g3 + f1g2 + f2g1 + f3g0 + f4g9_19 + f5g8_19 + f6g7_19 + f7g6_19 + f8g5_19 + f9g4_19;
-    long h4_val = f0g4 + f1g3_2 + f2g2 + f3g1_2 + f4g0 + f5g9_38 + f6g8_19 + f7g7_38 + f8g6_19 + f9g5_38;
-    long h5_val = f0g5 + f1g4 + f2g3 + f3g2 + f4g1 + f5g0 + f6g9_19 + f7g8_19 + f8g7_19 + f9g6_19;
-    long h6_val = f0g6 + f1g5_2 + f2g4 + f3g3_2 + f4g2 + f5g1_2 + f6g0 + f7g9_38 + f8g8_19 + f9g7_38;
-    long h7_val = f0g7 + f1g6 + f2g5 + f3g4 + f4g3 + f5g2 + f6g1 + f7g0 + f8g9_19 + f9g8_19;
-    long h8_val = f0g8 + f1g7_2 + f2g6 + f3g5_2 + f4g4 + f5g3_2 + f6g2 + f7g1_2 + f8g0 + f9g9_38;
-    long h9_val = f0g9 + f1g8 + f2g7 + f3g6 + f4g5 + f5g4 + f6g3 + f7g2 + f8g1 + f9g0;
-    long carry;
-    carry = (h0_val + (static_cast<long>(1LL) << 25)) >> 26;
-    h1_val += carry; h0_val -= carry << 26;
-    carry = (h4_val + (static_cast<long>(1LL) << 25)) >> 26;
-    h5_val += carry; h4_val -= carry << 26;
-    carry = (h1_val + (static_cast<long>(1LL) << 24)) >> 25;
-    h2_val += carry; h1_val -= carry << 25;
-    carry = (h5_val + (static_cast<long>(1LL) << 24)) >> 25;
-    h6_val += carry; h5_val -= carry << 25;
-    carry = (h2_val + (static_cast<long>(1LL) << 25)) >> 26;
-    h3_val += carry; h2_val -= carry << 26;
-    carry = (h6_val + (static_cast<long>(1LL) << 25)) >> 26;
-    h7_val += carry; h6_val -= carry << 26;
-    carry = (h3_val + (static_cast<long>(1LL) << 24)) >> 25;
-    h4_val += carry; h3_val -= carry << 25;
-    carry = (h7_val + (static_cast<long>(1LL) << 24)) >> 25;
-    h8_val += carry; h7_val -= carry << 25;
-    carry = (h4_val + (static_cast<long>(1LL) << 25)) >> 26;
-    h5_val += carry; h4_val -= carry << 26;
-    carry = (h8_val + (static_cast<long>(1LL) << 25)) >> 26;
-    h9_val += carry; h8_val -= carry << 26;
-    carry = (h9_val + (static_cast<long>(1LL) << 24)) >> 25;
-    h0_val += carry * 19; h9_val -= carry << 25;
-    carry = (h0_val + (static_cast<long>(1LL) << 25)) >> 26;
-    h1_val += carry; h0_val -= carry << 26;
-    h[0] = static_cast<int>(h0_val);
-    h[1] = static_cast<int>(h1_val);
-    h[2] = static_cast<int>(h2_val);
-    h[3] = static_cast<int>(h3_val);
-    h[4] = static_cast<int>(h4_val);
-    h[5] = static_cast<int>(h5_val);
-    h[6] = static_cast<int>(h6_val);
-    h[7] = static_cast<int>(h7_val);
-    h[8] = static_cast<int>(h8_val);
-    h[9] = static_cast<int>(h9_val);
+__device__ __host__ void fe_mul(fe __restrict__ h, const fe& __restrict__ f, const fe& __restrict__ g) {
+    long f0 = f[0], f1 = f[1], f2 = f[2], f3 = f[3], f4 = f[4], f5 = f[5], f6 = f[6], f7 = f[7], f8 = f[8], f9 = f[9];
+    long g0 = g[0], g1 = g[1], g2 = g[2], g3 = g[3], g4 = g[4], g5 = g[5], g6 = g[6], g7 = g[7], g8 = g[8], g9 = g[9];
+    long f0g0 = f0 * g0, f0g1 = f0 * g1, f0g2 = f0 * g2, f0g3 = f0 * g3, f0g4 = f0 * g4, f0g5 = f0 * g5, f0g6 = f0 * g6, f0g7 = f0 * g7, f0g8 = f0 * g8, f0g9 = f0 * g9;
+    long f1g0 = f1 * g0, f1g1_2 = f1 * g1 << 1, f1g2 = f1 * g2, f1g3_2 = f1 * g3 << 1, f1g4 = f1 * g4, f1g5_2 = f1 * g5 << 1, f1g6 = f1 * g6, f1g7_2 = f1 * g7 << 1, f1g8 = f1 * g8, f1g9_38 = f1 * (19 * g9) << 1;
+    long f2g0 = f2 * g0, f2g1 = f2 * g1, f2g2 = f2 * g2, f2g3 = f2 * g3, f2g4 = f2 * g4, f2g5 = f2 * g5, f2g6 = f2 * g6, f2g7 = f2 * g7, f2g8_19 = f2 * (19 * g8), f2g9_19 = f2 * (19 * g9);
+    long f3g0 = f3 * g0, f3g1_2 = f3 * g1 << 1, f3g2 = f3 * g2, f3g3_2 = f3 * g3 << 1, f3g4 = f3 * g4, f3g5_2 = f3 * g5 << 1, f3g6 = f3 * g6, f3g7_38 = f3 * (19 * g7) << 1, f3g8_19 = f3 * (19 * g8), f3g9_38 = f3 * (19 * g9) << 1;
+    long f4g0 = f4 * g0, f4g1 = f4 * g1, f4g2 = f4 * g2, f4g3 = f4 * g3, f4g4 = f4 * g4, f4g5 = f4 * g5, f4g6_19 = f4 * (19 * g6), f4g7_19 = f4 * (19 * g7), f4g8_19 = f4 * (19 * g8), f4g9_19 = f4 * (19 * g9);
+    long f5g0 = f5 * g0, f5g1_2 = f5 * g1 << 1, f5g2 = f5 * g2, f5g3_2 = f5 * g3 << 1, f5g4 = f5 * g4, f5g5_38 = f5 * (19 * g5) << 1, f5g6_19 = f5 * (19 * g6), f5g7_38 = f5 * (19 * g7) << 1, f5g8_19 = f5 * (19 * g8), f5g9_38 = f5 * (19 * g9) << 1;
+    long f6g0 = f6 * g0, f6g1 = f6 * g1, f6g2 = f6 * g2, f6g3 = f6 * g3, f6g4_19 = f6 * (19 * g4), f6g5_19 = f6 * (19 * g5), f6g6_19 = f6 * (19 * g6), f6g7_19 = f6 * (19 * g7), f6g8_19 = f6 * (19 * g8), f6g9_19 = f6 * (19 * g9);
+    long f7g0 = f7 * g0, f7g1_2 = f7 * g1 << 1, f7g2 = f7 * g2, f7g3_38 = f7 * (19 * g3) << 1, f7g4_19 = f7 * (19 * g4), f7g5_38 = f7 * (19 * g5) << 1, f7g6_19 = f7 * (19 * g6), f7g7_38 = f7 * (19 * g7) << 1, f7g8_19 = f7 * (19 * g8), f7g9_38 = f7 * (19 * g9) << 1;
+    long f8g0 = f8 * g0, f8g1 = f8 * g1, f8g2_19 = f8 * (19 * g2), f8g3_19 = f8 * (19 * g3), f8g4_19 = f8 * (19 * g4), f8g5_19 = f8 * (19 * g5), f8g6_19 = f8 * (19 * g6), f8g7_19 = f8 * (19 * g7), f8g8_19 = f8 * (19 * g8), f8g9_19 = f8 * (19 * g9);
+    long f9g0 = f9 * g0, f9g1_38 = f9 * (19 * g1) << 1, f9g2_19 = f9 * (19 * g2), f9g3_38 = f9 * (19 * g3) << 1, f9g4_19 = f9 * (19 * g4), f9g5_38 = f9 * (19 * g5) << 1, f9g6_19 = f9 * (19 * g6), f9g7_38 = f9 * (19 * g7) << 1, f9g8_19 = f9 * (19 * g8), f9g9_38 = f9 * (19 * g9) << 1;
+    long h0 = f0g0 + f1g9_38 + f2g8_19 + f3g7_38 + f4g6_19 + f5g5_38 + f6g4_19 + f7g3_38 + f8g2_19 + f9g1_38;
+    long h1 = f0g1 + f1g0 + f2g9_19 + f3g8_19 + f4g7_19 + f5g6_19 + f6g5_19 + f7g4_19 + f8g3_19 + f9g2_19;
+    long h2 = f0g2 + f1g1_2 + f2g0 + f3g9_38 + f4g8_19 + f5g7_38 + f6g6_19 + f7g5_38 + f8g4_19 + f9g3_38;
+    long h3 = f0g3 + f1g2 + f2g1 + f3g0 + f4g9_19 + f5g8_19 + f6g7_19 + f7g6_19 + f8g5_19 + f9g4_19;
+    long h4 = f0g4 + f1g3_2 + f2g2 + f3g1_2 + f4g0 + f5g9_38 + f6g8_19 + f7g7_38 + f8g6_19 + f9g5_38;
+    long h5 = f0g5 + f1g4 + f2g3 + f3g2 + f4g1 + f5g0 + f6g9_19 + f7g8_19 + f8g7_19 + f9g6_19;
+    long h6 = f0g6 + f1g5_2 + f2g4 + f3g3_2 + f4g2 + f5g1_2 + f6g0 + f7g9_38 + f8g8_19 + f9g7_38;
+    long h7 = f0g7 + f1g6 + f2g5 + f3g4 + f4g3 + f5g2 + f6g1 + f7g0 + f8g9_19 + f9g8_19;
+    long h8 = f0g8 + f1g7_2 + f2g6 + f3g5_2 + f4g4 + f5g3_2 + f6g2 + f7g1_2 + f8g0 + f9g9_38;
+    long h9 = f0g9 + f1g8 + f2g7 + f3g6 + f4g5 + f5g4 + f6g3 + f7g2 + f8g1 + f9g0;
+    long carry = (h0 + (1L << 25)) >> 26; h1 += carry; h0 -= carry << 26;
+    carry = (h4 + (1L << 25)) >> 26; h5 += carry; h4 -= carry << 26;
+    carry = (h1 + (1L << 24)) >> 25; h2 += carry; h1 -= carry << 25;
+    carry = (h5 + (1L << 24)) >> 25; h6 += carry; h5 -= carry << 25;
+    carry = (h2 + (1L << 25)) >> 26; h3 += carry; h2 -= carry << 26;
+    carry = (h6 + (1L << 25)) >> 26; h7 += carry; h6 -= carry << 26;
+    carry = (h3 + (1L << 24)) >> 25; h4 += carry; h3 -= carry << 25;
+    carry = (h7 + (1L << 24)) >> 25; h8 += carry; h7 -= carry << 25;
+    carry = (h4 + (1L << 25)) >> 26; h5 += carry; h4 -= carry << 26;
+    carry = (h8 + (1L << 25)) >> 26; h9 += carry; h8 -= carry << 26;
+    carry = (h9 + (1L << 24)) >> 25; h0 += carry * 19; h9 -= carry << 25;
+    carry = (h0 + (1L << 25)) >> 26; h1 += carry; h0 -= carry << 26;
+    h[0] = static_cast<int>(h0);
+    h[1] = static_cast<int>(h1);
+    h[2] = static_cast<int>(h2);
+    h[3] = static_cast<int>(h3);
+    h[4] = static_cast<int>(h4);
+    h[5] = static_cast<int>(h5);
+    h[6] = static_cast<int>(h6);
+    h[7] = static_cast<int>(h7);
+    h[8] = static_cast<int>(h8);
+    h[9] = static_cast<int>(h9);
 }
 void __device__ __host__ fe_neg(fe h, const fe& f) {
-    h[0] = -f[0];
-    h[1] = -f[1];
-    h[2] = -f[2];
-    h[3] = -f[3];
-    h[4] = -f[4];
-    h[5] = -f[5];
-    h[6] = -f[6];
-    h[7] = -f[7];
-    h[8] = -f[8];
-    h[9] = -f[9];
+#pragma unroll 10
+    for (unsigned char x = 0; x < 10; x++) {
+        h[x] = -f[x];
+    }
 }
 void __device__ __host__ fe_sq(fe h, const fe& f) {
-    int f2 = f[2];
-    int f3 = f[3];
-    int f4 = f[4];
-    int f5 = f[5];
-    int f6 = f[6];
-    int f7 = f[7];
-    int f8 = f[8];
-    int f9 = f[9];
-    int f2_2 = 2 * f2;
-    int f3_2 = 2 * f3;
-    int f4_2 = 2 * f4;
-    int f5_2 = 2 * f5;
-    int f6_2 = 2 * f6;
-    int f7_2 = 2 * f7;
-    int f5_38 = 38 * f5;
-    int f6_19 = 19 * f6;
-    int f7_38 = 38 * f7;
-    int f8_19 = 19 * f8;
-    int f9_38 = 38 * f9;
-    long f0f0 = f[0] * static_cast<long>(f[0]);
-    long f0f1_2 = 2 * f[0] *static_cast<long>(f[1]);
-    long f0f2_2 = 2 * f[0] * static_cast<long>(f[2]);
-    long f0f3_2 = 2 * f[0] * static_cast<long>(f[3]);
-    long f0f4_2 = 2 * f[0] * static_cast<long>(f[4]);
-    long f0f5_2 = 2 * f[0] * static_cast<long>(f[5]);
-    long f0f6_2 = 2 * f[0] * static_cast<long>(f[6]);
-    long f0f7_2 = 2 * f[0] * static_cast<long>(f[7]);
-    long f0f8_2 = 2 * f[0] * static_cast<long>(f[8]);
-    long f0f9_2 = 2 * f[0] * static_cast<long>(f[9]);
-    long f1f1_2 = 2 * f[1] * static_cast<long>(f[1]);
-    long f1f2_2 = 2 * f[1] * static_cast<long>(f[2]);
-    long f1f3_4 = 2 * f[1] * static_cast<long>(f[3] * 2);
-    long f1f4_2 = 2 * f[1] * static_cast<long>(f[4]);
-    long f1f5_4 = 2 * f[1] * static_cast<long>(f[5] * 2);
-    long f1f6_2 = 2 * f[1] * static_cast<long>(f[6]);
-    long f1f7_4 = 2 * f[1] * static_cast<long>(f[7] * 2);
-    long f1f8_2 = 2 * f[1] * static_cast<long>(f[8]);
-    long f1f9_76 = 2 * f[1] * static_cast<long>(f[9] * 38);
-    long f2f2 = f2 * static_cast<long>(f2);
-    long f2f3_2 = f2_2 * static_cast<long>(f3);
-    long f2f4_2 = f2_2 * static_cast<long>(f4);
-    long f2f5_2 = f2_2 * static_cast<long>(f5);
-    long f2f6_2 = f2_2 * static_cast<long>(f6);
-    long f2f7_2 = f2_2 * static_cast<long>(f7);
-    long f2f8_38 = f2_2 * static_cast<long>(f8_19);
-    long f2f9_38 = f2 * static_cast<long>(f9_38);
-    long f3f3_2 = f3_2 * static_cast<long>(f3);
-    long f3f4_2 = f3_2 * static_cast<long>(f4);
-    long f3f5_4 = f3_2 * static_cast<long>(f5_2);
-    long f3f6_2 = f3_2 * static_cast<long>(f6);
-    long f3f7_76 = f3_2 * static_cast<long>(f7_38);
-    long f3f8_38 = f3_2 * static_cast<long>(f8_19);
-    long f3f9_76 = f3_2 * static_cast<long>(f9_38);
-    long f4f4 = f4 * static_cast<long>(f4);
-    long f4f5_2 = f4_2 * static_cast<long>(f5);
-    long f4f6_38 = f4_2 * static_cast<long>(f6_19);
-    long f4f7_38 = f4 * static_cast<long>(f7_38);
-    long f4f8_38 = f4_2 * static_cast<long>(f8_19);
-    long f4f9_38 = f4 * static_cast<long>(f9_38);
-    long f5f5_38 = f5 * static_cast<long>(f5_38);
-    long f5f6_38 = f5_2 * static_cast<long>(f6_19);
-    long f5f7_76 = f5_2 * static_cast<long>(f7_38);
-    long f5f8_38 = f5_2 * static_cast<long>(f8_19);
-    long f5f9_76 = f5_2 * static_cast<long>(f9_38);
-    long f6f6_19 = f6 * static_cast<long>(f6_19);
-    long f6f7_38 = f6 * static_cast<long>(f7_38);
-    long f6f8_38 = f6_2 * static_cast<long>(f8_19);
-    long f6f9_38 = f6 * static_cast<long>(f9_38);
-    long f7f7_38 = f7 * static_cast<long>(f7_38);
-    long f7f8_38 = f7_2 * static_cast<long>(f8_19);
-    long f7f9_76 = f7_2 * static_cast<long>(f9_38);
-    long f8f8_19 = f8 * static_cast<long>(f8_19);
-    long f8f9_38 = f8 * static_cast<long>(f9_38);
-    long f9f9_38 = f9 * static_cast<long>(f9_38);
-    long h0 = f0f0 + f1f9_76 + f2f8_38 + f3f7_76 + f4f6_38 + f5f5_38;
-    long h1 = f0f1_2 + f2f9_38 + f3f8_38 + f4f7_38 + f5f6_38;
-    long h2 = f0f2_2 + f1f1_2 + f3f9_76 + f4f8_38 + f5f7_76 + f6f6_19;
-    long h3 = f0f3_2 + f1f2_2 + f4f9_38 + f5f8_38 + f6f7_38;
-    long h4 = f0f4_2 + f1f3_4 + f2f2 + f5f9_76 + f6f8_38 + f7f7_38;
-    long h5 = f0f5_2 + f1f4_2 + f2f3_2 + f6f9_38 + f7f8_38;
-    long h6 = f0f6_2 + f1f5_4 + f2f4_2 + f3f3_2 + f7f9_76 + f8f8_19;
-    long h7 = f0f7_2 + f1f6_2 + f2f5_2 + f3f4_2 + f8f9_38;
-    long h8 = f0f8_2 + f1f7_4 + f2f6_2 + f3f5_4 + f4f4 + f9f9_38;
-    long h9 = f0f9_2 + f1f8_2 + f2f7_2 + f3f6_2 + f4f5_2;
-    long carry0, carry1, carry2, carry3, carry4, carry5, carry6, carry7, carry8, carry9;
-    carry0 = (h0 + static_cast<long>(1 << 25)) >> 26;
-    h1 += carry0;
-    h0 -= carry0 << 26;
-    carry4 = (h4 + static_cast<long>(1 << 25)) >> 26;
-    h5 += carry4;
-    h4 -= carry4 << 26;
-    carry1 = (h1 + static_cast<long>(1 << 24)) >> 25;
-    h2 += carry1;
-    h1 -= carry1 << 25;
-    carry5 = (h5 + static_cast<long>(1 << 24)) >> 25;
-    h6 += carry5;
-    h5 -= carry5 << 25;
-    carry2 = (h2 + static_cast<long>(1 << 25)) >> 26;
-    h3 += carry2;
-    h2 -= carry2 << 26;
-    carry6 = (h6 + static_cast<long>(1 << 25)) >> 26;
-    h7 += carry6;
-    h6 -= carry6 << 26;
-    carry3 = (h3 + static_cast<long>(1 << 24)) >> 25;
-    h4 += carry3;
-    h3 -= carry3 << 25;
-    carry7 = (h7 + static_cast<long>(1 << 24)) >> 25;
-    h8 += carry7;
-    h7 -= carry7 << 25;
-    carry4 = (h4 + static_cast<long>(1 << 25)) >> 26;
-    h5 += carry4;
-    h4 -= carry4 << 26;
-    carry8 = (h8 + static_cast<long>(1 << 25)) >> 26;
-    h9 += carry8;
-    h8 -= carry8 << 26;
-    carry9 = (h9 + static_cast<long>(1 << 24)) >> 25;
-    h0 += carry9 * 19;
-    h9 -= carry9 << 25;
-    carry0 = (h0 + static_cast<long>(1 << 25)) >> 26;
-    h1 += carry0;
-    h0 -= carry0 << 26;
-    h[0] = (int)h0;
-    h[1] = (int)h1;
-    h[2] = (int)h2;
-    h[3] = (int)h3;
-    h[4] = (int)h4;
-    h[5] = (int)h5;
-    h[6] = (int)h6;
-    h[7] = (int)h7;
-    h[8] = (int)h8;
-    h[9] = (int)h9;
+    fe_mul(h, f, f);
 }
 void __host__ __device__ fe_sq2(fe h, const fe& f) {
     int f0 = f[0];
@@ -398,20 +160,20 @@ void __host__ __device__ fe_sq2(fe h, const fe& f) {
     int f7 = f[7];
     int f8 = f[8];
     int f9 = f[9];
-    int f0_2 = 2 * f0;
-    int f1_2 = 2 * f1;
-    int f2_2 = 2 * f2;
-    int f3_2 = 2 * f3;
-    int f4_2 = 2 * f4;
-    int f5_2 = 2 * f5;
-    int f6_2 = 2 * f6;
-    int f7_2 = 2 * f7;
+    int f0_2 = f0 << 1;
+    int f1_2 = f1 << 1;
+    int f2_2 = f2 << 1;
+    int f3_2 = f3 << 1;
+    int f4_2 = f4 << 1;
+    int f5_2 = f5 << 1;
+    int f6_2 = f6 << 1;
+    int f7_2 = f7 << 1;
     int f5_38 = 38 * f5;
     int f6_19 = 19 * f6;
     int f7_38 = 38 * f7;
     int f8_19 = 19 * f8;
     int f9_38 = 38 * f9;
-    long f0f0 = f[0] * static_cast<long>(f[0]);
+    long f0f0 = f0 * static_cast<long>(f0);
     long f0f1_2 = f0_2 * static_cast<long>(f1);
     long f0f2_2 = f0_2 * static_cast<long>(f2);
     long f0f3_2 = f0_2 * static_cast<long>(f3);
@@ -543,17 +305,11 @@ void __host__ __device__ fe_sq2(fe h, const fe& f) {
     h[8] = (int)h8;
     h[9] = (int)h9;
 }
-void __device__ __host__ fe_sub(fe h, const fe& f, const fe& g) {
-    h[0] = (f[0] - g[0]);
-    h[1] = (f[1] - g[1]);
-    h[2] = (f[2] - g[2]);
-    h[3] = (f[3] - g[3]);
-    h[4] = (f[4] - g[4]);
-    h[5] = (f[5] - g[5]);
-    h[6] = (f[6] - g[6]);
-    h[7] = (f[7] - g[7]);
-    h[8] = (f[8] - g[8]);
-    h[9] = (f[9] - g[9]);
+void __device__ __host__ fe_sub(fe __restrict__ h, const fe& __restrict__ f, const fe& __restrict__ g) {
+#pragma unroll 10
+    for (unsigned char x = 0; x < 10; x++) {
+        h[x] = f[x] - g[x];
+    }
 }
 void __host__ __device__ fe_tobytes(unsigned char* s, const fe& h) {
     int h0 = h[0];
@@ -577,7 +333,7 @@ void __host__ __device__ fe_tobytes(unsigned char* s, const fe& h) {
     int carry7;
     int carry8;
     int carry9;
-    q = (19 * h9 + (((int)1) << 24)) >> 25;
+    q = (19 * h9 + (1 << 24)) >> 25;
     q = (h0 + q) >> 26;
     q = (h1 + q) >> 25;
     q = (h2 + q) >> 26;
diff --git a/libs/fe.cuh b/libs/fe.cuh
index b2d9ceb..37189b2 100644
--- a/libs/fe.cuh
+++ b/libs/fe.cuh
@@ -3,14 +3,14 @@
 using fe = int[10];
 void __device__ __host__ fe_1(fe h);
 void __device__ __host__ fe_tobytes(unsigned char *s, const fe& h);
-void __host__ __device__ fe_copy(fe h, const fe& f);
-int __host__ __device__ fe_isnegative(const fe& f);
-void __host__ __device__ fe_cmov(fe f, const fe& g, unsigned int b);
+void __device__ __host__ fe_copy(fe h, const fe& f);
+int __device__ __host__ fe_isnegative(const fe& f);
+void __device__ __host__ fe_cmov(fe f, const fe& g, unsigned int b);
 void __device__ __host__ fe_neg(fe h, const fe& f);
 void __device__ __host__ fe_add(fe h, const fe& f, const fe& g);
 void __device__ __host__ fe_invert(fe out, const fe& z);
 void __device__ __host__ fe_sq(fe h, const fe& f);
-void __host__ __device__ fe_sq2(fe h, const fe& f);
-void __device__ __host__ fe_mul(fe h, const fe& f, const fe& g);
+void __device__ __host__ fe_sq2(fe h, const fe& f);
+void __device__ __host__ fe_mul(fe h, const fe& __restrict__ f, const fe& __restrict__ g);
 void __device__ __host__ fe_sub(fe h, const fe& f, const fe& g);
 #endif
diff --git a/libs/ge.cu b/libs/ge.cu
index c7b3a98..649a979 100644
--- a/libs/ge.cu
+++ b/libs/ge.cu
@@ -1,6 +1,6 @@
 #include <ge.cuh>
 #include <precomp_data.h>
-void __host__ __device__ ge_madd(ge_p1p1* r, const ge_p3* p, const ge_precomp* q) {
+void __host__ __device__ ge_madd(ge_p1p1* __restrict__ r, const ge_p3* __restrict__ p, const ge_precomp* __restrict__ q) {
     fe t0;
     fe_add(r->X, p->Y, p->X);
     fe_sub(r->Y, p->Y, p->X);
@@ -13,18 +13,18 @@ void __host__ __device__ ge_madd(ge_p1p1* r, const ge_p3* p, const ge_precomp* q
     fe_add(r->Z, t0, r->T);
     fe_sub(r->T, t0, r->T);
 }
-void __host__ __device__ ge_p1p1_to_p2(ge_p2* r, const ge_p1p1* p) {
+void __host__ __device__ ge_p1p1_to_p2(ge_p2* __restrict__ r, const ge_p1p1* __restrict__ p) {
     fe_mul(r->X, p->X, p->T);
     fe_mul(r->Y, p->Y, p->Z);
     fe_mul(r->Z, p->Z, p->T);
 }
-void __host__ __device__ ge_p1p1_to_p3(ge_p3* r, const ge_p1p1* p) {
+void __host__ __device__ ge_p1p1_to_p3(ge_p3* __restrict__ r, const ge_p1p1* __restrict__ p) {
     fe_mul(r->X, p->X, p->T);
     fe_mul(r->Y, p->Y, p->Z);
     fe_mul(r->Z, p->Z, p->T);
     fe_mul(r->T, p->X, p->Y);
 }
-void __host__ __device__ ge_p2_dbl(ge_p1p1* r, const ge_p2* p) {
+void __host__ __device__ ge_p2_dbl(ge_p1p1* __restrict__ r, const ge_p2* __restrict__ p) {
     fe t0;
     fe_sq(r->X, p->X);
     fe_sq(r->Z, p->Y);
@@ -36,14 +36,14 @@ void __host__ __device__ ge_p2_dbl(ge_p1p1* r, const ge_p2* p) {
     fe_sub(r->X, t0, r->Y);
     fe_sub(r->T, r->T, r->Z);
 }
-void __host__ __device__ ge_p3_dbl(ge_p1p1* r, const ge_p3* p) {
+void __host__ __device__ ge_p3_dbl(ge_p1p1* __restrict__ r, const ge_p3* __restrict__ p) {
     ge_p2 q;
     fe_copy(q.X, p->X);
     fe_copy(q.Y, p->Y);
     fe_copy(q.Z, p->Z);
     ge_p2_dbl(r, &q);
 }
-void ge_p3_tobytes(unsigned char* s, const ge_p3* h) {
+void ge_p3_tobytes(unsigned char* __restrict__ s, const ge_p3* __restrict__ h) {
     fe recip, x, y;
     fe_invert(recip, h->Z);
     fe_mul(x, h->X, recip);
@@ -57,7 +57,7 @@ static unsigned char __host__ __device__ equal(signed char b, signed char c) {
     x >>= 63;
     return (unsigned char)x;
 }
-static void __host__ __device__ cmov(ge_precomp* t, const ge_precomp* u, unsigned char b) {
+static void __host__ __device__ cmov(ge_precomp* __restrict__ t, const ge_precomp* __restrict__ u, unsigned char b) {
     fe_cmov(t->yplusx, u->yplusx, b);
     fe_cmov(t->yminusx, u->yminusx, b);
     fe_cmov(t->xy2d, u->xy2d, b);
@@ -85,7 +85,7 @@ static void __host__ __device__ select(ge_precomp* t, int pos, signed char b) {
     fe_neg(minust.xy2d, t->xy2d);
     cmov(t, &minust, bnegative);
 }
-void __device__ __host__ ge_scalarmult_base(ge_p3* h, const unsigned char* a) {
+void __device__ __host__ ge_scalarmult_base(ge_p3* __restrict__ h, const unsigned char* __restrict__ a) {
     signed char e[64], carry;
     ge_p1p1 r;
     ge_p2 s;
@@ -96,7 +96,7 @@ void __device__ __host__ ge_scalarmult_base(ge_p3* h, const unsigned char* a) {
         e[2 * i] = a[i] & 15;
         e[2 * i + 1] = a[i] >> 4;
     }
-#pragma unroll
+#pragma unroll 63
     for (i = 0, carry = 0; i < 63; i++) {
         e[i] += carry;
         carry = (e[i] + 8) >> 4;
@@ -109,7 +109,7 @@ void __device__ __host__ ge_scalarmult_base(ge_p3* h, const unsigned char* a) {
     fe_1(h->Z);
 #pragma unroll 10
     for (int i = 0; i < 10; i++) h->T[i] = 0;
-#pragma unroll 64
+#pragma unroll
     for (i = 1; i < 64; i += 2) {
         select(&t, i >> 1, e[i]);
         ge_madd(&r, h, &t);
@@ -120,7 +120,7 @@ void __device__ __host__ ge_scalarmult_base(ge_p3* h, const unsigned char* a) {
     ge_p1p1_to_p2(&s, &r); ge_p2_dbl(&r, &s);
     ge_p1p1_to_p2(&s, &r); ge_p2_dbl(&r, &s);
     ge_p1p1_to_p3(h, &r);
-#pragma unroll 64
+#pragma unroll 32
     for (i = 0; i < 64; i += 2) {
         select(&t, i >> 1, e[i]);
         ge_madd(&r, h, &t);
diff --git a/sources/main.cpp b/sources/main.cpp
index bf3f5d2..b43be48 100644
--- a/sources/main.cpp
+++ b/sources/main.cpp
@@ -122,7 +122,6 @@ inline void sign_keypair(unsigned char* __restrict pk, unsigned char* __restrict
     _mm256_storeu_si256(reinterpret_cast<__m256i*>(sk), _mm256_loadu_si256(reinterpret_cast<const __m256i*>(seed)));
     _mm256_storeu_si256(reinterpret_cast<__m256i*>(sk + 32), _mm256_loadu_si256(reinterpret_cast<const __m256i*>(pk)));
 }
-
 void miner_thread() noexcept {
     alignas(32) Key inv;
     alignas(32) Key seed;
diff --git a/sources/main.cu b/sources/main.cu
index 8a4a34c..43864c3 100644
--- a/sources/main.cu
+++ b/sources/main.cu
@@ -6,7 +6,7 @@
 #include <edsign.cuh>
 #include <string.cuh>
 #include <keymanip.cuh>
-#ifndef DEBUG
+#ifdef RELEASE
     #define THREADSPB 256
     #define THDIVTHPB (tTh / THREADSPB)
 #else
@@ -68,7 +68,6 @@ __device__ __forceinline__ unsigned char getZeros(const unsigned char* v) noexce
     }
     return leadZeros;
 }
-
 /*
 __global__ void initRandSeed(curandState* states, const unsigned long seed) {
     int idx = blockIdx.x * blockDim.x + threadIdx.x;
@@ -78,14 +77,13 @@ __global__ void initRandSeed(curandState* states, const unsigned long seed) {
 __global__ void initRand(curandState* rs, unsigned int* d_seeds) {
     int id = blockIdx.x * blockDim.x + threadIdx.x;
     curand_init(clock64() + id * 7919ULL, id, 0, &rs[id]);
-#pragma unroll 10
     for (int i = 0; i < 10; i++) {
         curand(&rs[id]);
     }
-    unsigned int seed = curand(&rs[id]);
+    unsigned seed = curand(&rs[id]);
     d_seeds[id] = seed;
 }
-int checkSeeds(unsigned int* seeds, int count) {
+int checkSeeds(unsigned* seeds, int count) {
     for (int i = 0; i < count; i++) {
         for (int j = i + 1; j < count; j++) {
             if (seeds[i] == seeds[j]) {
@@ -108,7 +106,8 @@ __device__ __forceinline__ void rmbytes(unsigned char* buf, curandState* state)
 __global__ void KeyGenKernel(curandState* randStates) {
     int idx = blockIdx.x * blockDim.x + threadIdx.x;
     curandState localState = randStates[idx];
-    while (true) {
+    int x = 1;
+    while (x < 0xFFFFFFFF) {
         Key32 seed;
         KeysBox32 keys;
         rmbytes(seed, &localState);
@@ -122,7 +121,7 @@ __global__ void KeyGenKernel(curandState* randStates) {
             d_high = zeros;
         }
     #ifdef DEBUG
-        if ((x & 0xFF) == 0) {
+        if ((++x & 0xFF) == 0) {
             printf("Iters: %d\n", x);
         }
     #endif