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24-03.md

@@ -90,16 +90,19 @@ program code and a few cycles of execution time. DX is being loaded with
 a word value that's composed of two independent immediate byte values.
 The obvious way to implement this would be with
 
-    MOV DL,VALUE1
-    MOV DH,VALUE2
-
+```nasm
+MOV DL,VALUE1
+MOV DH,VALUE2
+```
 which requires four instruction bytes. By shifting the value destined
 for the high byte into the high byte with MASM's shift-left operator,
 **SHL** (\*100H would work also), and then logically combining the
 values with MASM's **OR** operator (or the **ADD** operator), both
 halves of DX can be loaded with a single instruction, as in
 
-    MOV DX,(VALUE2 SHL 8) OR VALUE1
+```nasm
+MOV DX,(VALUE2 SHL 8) OR VALUE1
+```
 
 which takes only three bytes and is faster, being a single instruction.
 (Note, though, that in 32-bit protected mode, there's a size and