diff --git a/src/tea3/cli.py b/src/tea3/cli.py
index a9b15b1..5c66b5b 100644
--- a/src/tea3/cli.py
+++ b/src/tea3/cli.py
@@ -12,12 +12,12 @@ from tea3.precompute import run_precompute_cli, run_load_cli
 
 
 def run_classic_cli():
-    print("\nR registers are indexed 0–7; bits within each register are 0–7.")
+    print("\nR registers are indexed 0-7; bits within each register are 0-7.")
     print("Enter -1 to print all registers, or all bits.")
 
-    steps = prompt_int("How many steps do you want to run? (1–100): ", 1, 100)
-    reg = prompt_int("Which R register do you want to inspect? (-1 or 0–7): ", -1, 7)
-    bit = prompt_int("Which bit of that register?              (-1 or 0–7): ", -1, 7)
+    steps = prompt_int("How many steps do you want to run? (1-100): ", 1, 100)
+    reg = prompt_int("Which R register do you want to inspect? (-1 or 0-7): ", -1, 7)
+    bit = prompt_int("Which bit of that register?              (-1 or 0-7): ", -1, 7)
 
     print("-" * 50)
 
@@ -42,12 +42,12 @@ def run_classic_cli():
     print("Done.")
 
 def run_advanced_cli():
-    print("\nR registers are indexed 0–7; bits within each register are 0–7.")
-    print("x and r registers are indexed 0–4; bits within each register are 0–7.")
+    print("\nR registers are indexed 0-7; bits within each register are 0-7.")
+    print("x and r registers are indexed 0-4; bits within each register are 0-7.")
 
-    steps = prompt_int("How many steps do you want to run? (1–100): ", 1, 100)
-    reg = prompt_int("Which R register do you want to inspect? (-1 or 0–7): ", -1, 7)
-    bit = prompt_int("Which bit of that register?              (-1 or 0–7): ", -1, 7)
+    steps = prompt_int("How many steps do you want to run? (1-100): ", 1, 100)
+    reg = prompt_int("Which R register do you want to inspect? (-1 or 0-7): ", -1, 7)
+    bit = prompt_int("Which bit of that register?              (-1 or 0-7): ", -1, 7)
 
     raw = input("Bits to set to 0 (space-separated): ").strip()
     zero_bits = raw.split() if raw else []
@@ -94,12 +94,12 @@ def run_exhaustive_cli():
 
     family = prompt_choice("Your choice (1, 2, 3 or 4): ", {1, 2, 3, 4})
 
-    print("\nR registers are indexed 0–7; bits within each register are 0–7.")
+    print("\nR registers are indexed 0-7; bits within each register are 0-7.")
     print("Enter -1 to print all bits in the chosen register.")
 
-    steps = prompt_int("How many steps? (1–100): ", 1, 100)
-    target_reg = prompt_int("Target register (0–7): ", 0, 7)
-    target_bit = prompt_int("Target bit (-1 or 0–7): ", -1, 7)
+    steps = prompt_int("How many steps? (1-100): ", 1, 100)
+    target_reg = prompt_int("Target register (0-7): ", 0, 7)
+    target_bit = prompt_int("Target bit (-1 or 0-7): ", -1, 7)
 
     print("-" * 50)
 
@@ -117,13 +117,13 @@ def run_exhaustive_cli():
 
 
 def run_variable_xor_cli():
-    print("\nR registers are indexed 0–7; bits within each register are 0–7.")
+    print("\nR registers are indexed 0-7; bits within each register are 0-7.")
     print("Enter the bit positions to XOR, e.g. `0 1`.")
 
-    steps = prompt_int("How many steps? (1–100): ", 1, 100)
-    target_reg = prompt_int("Target register (0–7): ", 0, 7)
+    steps = prompt_int("How many steps? (1-100): ", 1, 100)
+    target_reg = prompt_int("Target register (0-7): ", 0, 7)
     bits_to_xor = prompt_list(
-        "Bits to XOR (0–7, separated by spaces, ranges with '-'): ",
+        "Bits to XOR (0-7, separated by spaces, ranges with '-'): ",
         item_name="bit",
         min_value=0,
         max_value=7,
@@ -136,12 +136,12 @@ def run_variable_xor_cli():
     print("Done.")
 
 def run_exhaustive_xor_cli():
-    print("\nR registers are indexed 0–7; bits within each register are 0–7.")
+    print("\nR registers are indexed 0-7; bits within each register are 0-7.")
     print("This mode searches all XOR combinations of a given size.")
 
-    steps = prompt_int("How many steps? (1–100): ", 1, 100)
-    target_reg = prompt_int("Target register (0–7): ", 0, 7)
-    xor_size = prompt_int("Number of bits to XOR (2–8): ", 2, 8)
+    steps = prompt_int("How many steps? (1-100): ", 1, 100)
+    target_reg = prompt_int("Target register (0-7): ", 0, 7)
+    xor_size = prompt_int("Number of bits to XOR (2-8): ", 2, 8)
 
     print("-" * 50)
 
@@ -154,9 +154,9 @@ def run_exhaustive_xor_cli():
 def run_cube_attack_cli(model = None):
     print("\nCube attack search on TEA3 model to search for low-degree superpolys.")
 
-    rounds = prompt_int("How many rounds? (1–100): ", 1, 100)
-    target_reg = prompt_int("Target R register (0–7): ", 0, 7)
-    target_bit = prompt_int("Target bit of that register (0–7): ", 0, 7)
+    rounds = prompt_int("How many rounds? (1-100): ", 1, 100)
+    target_reg = prompt_int("Target R register (0-7): ", 0, 7)
+    target_bit = prompt_int("Target bit of that register (0-7): ", 0, 7)
 
     raw = input("Bits to set to 0: ").strip()
     fixed_zero_bits = raw.split() if raw else []
@@ -164,7 +164,7 @@ def run_cube_attack_cli(model = None):
     raw = input("Bits to set to 1: ").strip()
     fixed_one_bits = raw.split() if raw else []
 
-    cube_size = prompt_int("Cube size (1–64): ", 1, 64)
+    cube_size = prompt_int("Cube size (1-64): ", 1, 64)
 
     print("\nSearch strategy:")
     print("  1) Exhaustive")
@@ -174,13 +174,13 @@ def run_cube_attack_cli(model = None):
     if strategy == 1:
         mode = "exhaustive"
         samples = 0
-        limit = prompt_int("How many results to keep? (1–100): ", 1, 100)
+        limit = prompt_int("How many results to keep? (1-100): ", 1, 100)
     else:
         mode = "random"
-        samples = prompt_int("How many random cubes to test? (1–200000): ", 1, 200000)
-        limit = prompt_int("How many results to keep? (1–100): ", 1, 100)
+        samples = prompt_int("How many random cubes to test? (1-200000): ", 1, 200000)
+        limit = prompt_int("How many results to keep? (1-100): ", 1, 100)
 
-    max_degree = prompt_int("Maximum accepted degree (0–5): ", 0, 5)
+    max_degree = prompt_int("Maximum accepted degree (0-5): ", 0, 5)
 
     print("-" * 50)
     run_cube_attack(
@@ -204,9 +204,9 @@ def run_cube_attack_cli(model = None):
 def run_cube_attack_oracle_cli():
     print("\nBlack-box cube attack search on TEA3.")
     print("This mode varies frame-number bits and queries the cipher directly.")
-    print("Frame-number bits are indexed 0–31, with 0 = least significant bit.")
+    print("Frame-number bits are indexed 0-31, with 0 = least significant bit.")
 
-    base_frame_number = prompt_int("Base frame number (0–4294967295): ", 0, 0xFFFFFFFF)
+    base_frame_number = prompt_int("Base frame number (0-4294967295): ", 0, 0xFFFFFFFF)
 
     raw = input("Frame bits to set to 0 (space-separated): ").strip()
     fixed_zero_bits = raw.split() if raw else []
@@ -214,10 +214,10 @@ def run_cube_attack_oracle_cli():
     raw = input("Frame bits to set to 1 (space-separated): ").strip()
     fixed_one_bits = raw.split() if raw else []
 
-    output_byte = prompt_int("Output keystream byte (0–63): ", 0, 63)
-    output_bit = prompt_int("Output bit within that byte (0–7): ", 0, 7)
+    output_byte = prompt_int("Output keystream byte (0-63): ", 0, 63)
+    output_bit = prompt_int("Output bit within that byte (0-7): ", 0, 7)
 
-    cube_size = prompt_int("Cube size (1–32): ", 1, 32)
+    cube_size = prompt_int("Cube size (1-32): ", 1, 32)
 
     print("\nSearch strategy:")
     print("  1) Exhaustive")
@@ -227,11 +227,11 @@ def run_cube_attack_oracle_cli():
     if strategy == 1:
         mode = "exhaustive"
         samples = 0
-        limit = prompt_int("How many results to keep? (1–100): ", 1, 100)
+        limit = prompt_int("How many results to keep? (1-100): ", 1, 100)
     else:
         mode = "random"
-        samples = prompt_int("How many random cubes to test? (1–200000): ", 1, 200000)
-        limit = prompt_int("How many results to keep? (1–100): ", 1, 100)
+        samples = prompt_int("How many random cubes to test? (1-200000): ", 1, 200000)
+        limit = prompt_int("How many results to keep? (1-100): ", 1, 100)
 
     raw = input(
         "Enter 10 key bytes in hex or decimal, separated by spaces "
diff --git a/src/tea3/precompute.py b/src/tea3/precompute.py
index ca68d1d..05e2ff9 100644
--- a/src/tea3/precompute.py
+++ b/src/tea3/precompute.py
@@ -10,9 +10,9 @@ def run_precompute_cli():
     build a model, optionally fix bits, run n steps (with or without abstraction), and save the model to a file.
     """
     print("\nPrecompute and save model")
-    print("R registers 0–7; x,r registers 0–4; bits 0–7.")
+    print("R registers 0-7; x,r registers 0-4; bits 0-7.")
 
-    steps = prompt_int("How many steps to precompute? (1–100): ", 1, 100)
+    steps = prompt_int("How many steps to precompute? (1-100): ", 1, 100)
 
     raw0 = input("Bits to set to 0: ").strip()
     zero_bits = raw0.split() if raw0 else []
diff --git a/src/tea3/utils.py b/src/tea3/utils.py
index edafc55..3446101 100644
--- a/src/tea3/utils.py
+++ b/src/tea3/utils.py
@@ -54,10 +54,10 @@ def set_int_bits(value: int, bit_names, bit_value: int) -> int:
         if not name:
             continue
         if not name.isdigit():
-            raise ValueError(f"Invalid bit index '{name}'. Expected integers 0–31.")
+            raise ValueError(f"Invalid bit index '{name}'. Expected integers 0-31.")
         idx = int(name)
         if idx < 0 or idx > 31:
-            raise ValueError(f"Bit index out of range: {idx}. Expected 0–31.")
+            raise ValueError(f"Bit index out of range: {idx}. Expected 0-31.")
         if bit_value == 0:
             x &= ~(1 << idx)
         else: