MIPS R4000 Microprocessor User's Manual 171
Floating-Point Unit
Floating-Point Compare Operations
The floating-point compare (C.fmt.cond) instructions interpret the
contents of two FPU registers (fs, ft) in the specified format (fmt) and
arithmetically compare them. A result is determined based on the
comparison and conditions (cond) specified in the instruction.
Table 6-12 lists the compare instructions; Appendix B gives a detailed
description of each instruction. Table 6-13 lists the mnemonics for the
compare instruction conditions.
Table 6-13 Mnemonics and Definitions of Compare Instruction Conditions
Mnemonic Definition Mnemonic Definition
T True F False
OR Ordered UN Unordered
NEQ Not Equal EQ Equal
OLG
Ordered or Less Than or
Greater Than
UEQ Unordered or Equal
UGE
Unordered or Greater Than
or Equal
OLT Ordered Less Than
OGE Ordered Greater Than ULT Unordered or Less Than
UGT Unordered or Greater Than OLE Ordered Less Than or Equal
OGT Ordered Greater Than ULE
Unordered or Less Than or
Equal
ST Signaling True SF Signaling False
GLE
Greater Than, or Less Than
or Equal
NGLE
Not Greater Than or Less
Than or Equal
SNE Signaling Not Equal SEQ Signaling Equal
GL Greater Than or Less Than NGL
Not Greater Than or Less
Than
NLT Not Less Than LT Less Than
GE Greater Than or Equal NGE Not Greater Than or Equal
NLE Not Less Than or Equal LE Less Than or Equal
GT Greater Than NGT Not Greater Than
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