The terms "above" and "below" refer to the relation between two unsigned values (neither SF nor OF is tested). The terms "greater" and "less" refer to the relation between two signed values (SF and OF are tested).
Definition of Conditions
(For conditional instructions Jcond, and SETcond)
Instruction Condition
Mnemonic Meaning Subcode Tested
O Overflow 0000 OF = 1
NO No overflow 0001 OF = 0
B Below
NAE Neither above nor equal 0010 CF = 1
NB Not below
AE Above or equal 0011 CF = 0
E Equal
Z Zero 0100 ZF = 1
NE Not equal
NZ Not zero 0101 ZF = 0
BE Below or equal
NA Not above 0110 (CF or ZF) = 1
NBE Neither below nor equal
NA Above 0111 (CF or ZF) = 0
S Sign 1000 SF = 1
NS No sign 1001 SF = 0
P Parity
PE Parity even 1010 PF = 1
NP No parity
PO Parity odd 1011 PF = 0
L Less
NGE Neither greater nor equal 1100 (SF xor OF) = 1
NL Not less
GE Greater or equal 1101 (SF xor OF) = 0
LE Less or equal
NG Not greater 1110 ((SF xor OF) or ZF) = 1
NLE Neither less nor equal
G Greater 1111 ((SF xor OF) or ZF) = 0