diff --git a/main.tex b/main.tex
index a57c1c3..9a6eaa5 100644
--- a/main.tex
+++ b/main.tex
@@ -141,14 +141,14 @@
     \midrule
     \multicolumn{5}{>{\sffamily\bfseries}c}{64-bit Mode Only} \\
     \midrule
-    r8 & r8d & r8w & r8b & No special use \\
-    r9 & r9d & r9w & r9b & \\
-    r10 & r10d & r10w & r10b & \\
-    r11 & r11d & r11w & r11b & \\
-    r12 & r12d & r12w & r12b & \\
-    r13 & r13d & r13w & r13b & \\
-    r14 & r14d & r14w & r14b & \\
-    r15 & r15d & r15w & r15b & \\
+    r8 & r8d & r8w & r8b & \multicolumn{1}{c}{\textendash} \\
+    r9 & r9d & r9w & r9b & \multicolumn{1}{c}{\textendash} \\
+    r10 & r10d & r10w & r10b & \multicolumn{1}{c}{\textendash} \\
+    r11 & r11d & r11w & r11b & \multicolumn{1}{c}{\textendash} \\
+    r12 & r12d & r12w & r12b & \multicolumn{1}{c}{\textendash} \\
+    r13 & r13d & r13w & r13b & \multicolumn{1}{c}{\textendash} \\
+    r14 & r14d & r14w & r14b & \multicolumn{1}{c}{\textendash} \\
+    r15 & r15d & r15w & r15b & \multicolumn{1}{c}{\textendash} \\
     \bottomrule
   \end{tabularx}