diff --git a/kernel/core.asm b/kernel/core.asm
index a1a575d..b612ea6 100644
--- a/kernel/core.asm
+++ b/kernel/core.asm
@@ -183,10 +183,14 @@ findchar:
 
 
 ; Format the lower nibble of A into a hex char and stores the result in A.
-; daa does the following operation if we were working in a high level language:
-; a += (2*N-1)*(0x60*(a >= 0xa0) + 0x06*((a & 0x0f) >= 0x0a)) 
-; N is the Negative flag. The C and H flags are also taken into account, but we
-; clear both so this is a good enough description for our purposes.
+; The idea here is that in the ASCII table, there's 7 characters between
+; '9' and 'A', and so we add 7 if the digit is >9.
+; daa is designed for using Binary Coded Decimal format, where each
+; nibble represents a single base 10 digit. If a nibble has a value
+; greater than 9, it adds 6 to that nibble, carrying a 1 to the next 
+; nibble and bringing the value back between 0-9. This gives us 6 of that
+; 7 we needed to add, so then we just condtionally set the carry and 
+; add that carry, along with a number that maps 0 to '0'.
 fmtHex:
 	; we need to make the upper nibble a known value
 	; also clears the N, C and H flags for daa