Signed
From Sonic Retro
Revision as of 16:39, 12 October 2004 by Ss is testing (talk | contribs)
Revision as of 16:39, 12 October 2004 by Ss is testing (talk | contribs)
When using the signed hexadecimal number system in programming (such as 68000 assembly), the values $81 to $FF are interpreted as -$7F to -$01 respectively. This is simpler than actually prefixing a number with the minus symbol "-".
Conversely, the unsigned number system has no negatives. So $81 is read simply as $81.