Encoding:

Format:

FMAX.df 

FMAX.W wd,ws,wt

FMAX.D wd,ws,wt

Purpose:

Vector Floating-Point Maximum

Vector floating-point maximum.

Description:

wd[i] = max(ws[i], wt[i])

The largest values between corresponding floating-point elements in vector ws and vector wt are written to vector wd.

The largest value is defined by the maxNum operation in the IEEE Standard for Floating-Point Arithmetic 754^TM2008.

The operands and results are values in floating-point data format df.

Restrictions:

Data-dependent exceptions are poss ible as s pecified by the I EEE Standard for Floating-Point Arithmetic 754^TM2008.

Operation:

FMAX.W
   for i in 0 .. WRLEN/32-1
      WR[wd]32i+31..32i = MaxFP(WR[ws]32i+31..32i, WR[wt]32i+31..32i, 32)
   endfor
FMAX.D
   for i in 0 .. WRLEN/64-1
      WR[wd]64i+63..64i = MaxFP(WR[ws]64i+63..64i, WR[wt]64i+63..64i, 64)
   endfor
function MaxFP(tt, ts, n)
   /* Implementation defined, returns the largest argument. */
endfunction MaxFP

Exceptions:

Reserved Instruction Exception, MSA Disabled Exception, MSA Floating Point Exception.