FpFunctionUnit

• Version: V2R2
• Status: OK
• Date: 2025/01/20
• commit: xxx

The floating-point computation function units include falu, fmac, fcvt, fDivSqrt; the instructions supported by each function unit are listed in the table below:

falu

Instructions supported by falu

Function Unit	Supported Instructions	Extension	Description
falu	FMINM.H	Zfa	scalar
falu	FMINM.S	Zfa	scalar
falu	FMINM.D	Zfa	scalar
falu	FMAXM.H	Zfa	scalar
falu	FMAXM.S	Zfa	scalar
falu	FMAXM.D	Zfa	scalar
falu	FLEQ.H	Zfa	scalar
falu	FLEQ.S	Zfa	scalar
falu	FLEQ.D	Zfa	scalar
falu	FLTQ.H	Zfa	scalar
falu	FLTQ.S	Zfa	scalar
falu	FLTQ.D	Zfa	scalar
falu	FADD.H	Zfh	scalar
falu	FADD.S	F	scalar
falu	FADD.D	D	scalar
falu	FSUB.H	Zfh	scalar
falu	FSUB.S	F	scalar
falu	FSUB.D	D	scalar
falu	FEQ.H	Zfh	scalar
falu	FEQ.S	F	scalar
falu	FEQ.D	D	scalar
falu	FLT.H	Zfh	scalar
falu	FLT.S	F	scalar
falu	FLT.D	D	scalar
falu	FLE.H	Zfh	scalar
falu	FLE.S	F	scalar
falu	FLE.D	D	scalar
falu	FMIN.H	Zfh	scalar
falu	FMIN.S	F	scalar
falu	FMIN.D	D	scalar
falu	FCLASS.H	Zfh	scalar
falu	FCLASS.S	F	scalar
falu	FCLASS.D	D	scalar
falu	FSGNJ.H	Zfh	scalar
falu	FSGNJ.S	F	scalar
falu	FSGNJ.D	D	scalar
falu	FSGNJX.H	Zfh	scalar
falu	FSGNJX.S	F	scalar
falu	FSGNJX.D	D	scalar
falu	FSGNJN.H	Zfh	scalar
falu	FSGNJN.S	F	scalar
falu	FSGNJN.D	D	scalar

fmac

Instructions supported by fmac

Function Unit	Supported Instructions	Extension	Description
fmac	FMUL.H	Zfh	scalar
fmac	FMUL.S	F	scalar
fmac	FMUL.D	D	scalar
fmac	FMADD.H	Zfh	scalar
fmac	FMADD.S	F	scalar
fmac	FMADD.D	D	scalar
fmac	FMSUB.H	Zfh	scalar
fmac	FMSUB.S	F	scalar
fmac	FMSUB.D	D	scalar
fmac	FNMADD.H	Zfh	scalar
fmac	FNMADD.S	F	scalar
fmac	FNMADD.D	D	scalar
fmac	FNMSUB.H	Zfh	scalar
fmac	FNMSUB.S	F	scalar
fmac	FNMSUB.D	D	scalar

fcvt

Instructions supported by fcvt

Function Unit	Supported Instructions	Extension	Description
fcvt	FROUND.H	zfa	scalar
fcvt	FROUND.S	zfa	scalar
fcvt	FROUND.D	zfa	scalar
fcvt	FROUNDX.H	zfa	scalar
fcvt	FROUNDX.S	zfa	scalar
fcvt	FROUNDX.D	zfa	scalar
fcvt	FCVTMOD.W.D	zfa	scalar
fcvt	FCVT.W.S	F	scalar
fcvt	FCVT.WU.S	F	scalar
fcvt	FCVT.L.S	F	scalar
fcvt	FCVT.LU.S	F	scalar
fcvt	FCVT.D.S	D	scalar
fcvt	FCVT.W.D	D	scalar
fcvt	FCVT.WU.D	D	scalar
fcvt	FCVT.L.D	D	scalar
fcvt	FCVT.LU.D	D	scalar
fcvt	FCVT.S.D	D	scalar
fcvt	FCVT.D.S	D	scalar
fcvt	FCVT.H.S	Zfh	scalar
fcvt	FCVT.S.H	Zfh	scalar
fcvt	FCVT.H.D	Zfh	scalar
fcvt	FCVT.D.H	Zfh	scalar
fcvt	FCVT.W.H	Zfh	scalar
fcvt	FCVT.WU.H	Zfh	scalar
fcvt	FCVT.L.H	Zfh	scalar
fcvt	FCVT.LU.H	Zfh	scalar
fcvt	FMV.X.D	D	scalar
fcvt	FMV.X.W	F	scalar
fcvt	FMV.X.H	Zfh	scalar

fDivSqrt

Instructions supported by fDivSqrt

Function Unit	Supported Instructions	Extension	Description
fDivSqrt	FDIV.H	Zfh	scalar
fDivSqrt	FDIV.S	F	scalar
fDivSqrt	FDIV.D	D	scalar
fDivSqrt	FSQRT.H	Zfh	scalar
fDivSqrt	FSQRT.S	F	scalar
fDivSqrt	FSQRT.D	D	scalar