Computer Hardware User's Guide

Condition Codes and Flags
13-30
Table 13–12 lists the condition mnemonic, code, description, and flag for each
of the 20 condition codes.
Table 13–12. Condition Codes and Flags
(a) Unconditional compares
Condition Code Description Flag
U 00000 Unconditional Irrevelant
(b) Unsigned compares
Condition Code Description Flag
LO
LS
HI
HS
EQ
NE
00001
00010
00011
00100
00101
00110
Lower than
Lower than or same as
Higher than
Higher than or same as
Equal to
Not equal to
C
C OR Z
C AND Z
C
Z
Z
(c) Signed compares
Condition Code Description Flag
LT
LE
GT
GE
EQ
NE
00111
01000
01001
01010
00101
00110
Less than
Less than or equal to
Greater than
Greater than or equal to
Equal to
Not equal to
N
N OR Z
N AND Z
N
Z
Z
= logical complement (not true condition)