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Instruction Descriptions 4–127
4.10.21 IEEE Floating Multiply
Format:
Operation:
Fc ← Fav * Fbv
Exceptions:
Instruction mnemonics:
Qualifiers:
Description:
The multiplicand operand in register Fb is multiplied by the multiplier operand in register Fa
and the product is written to register Fc.
The product is rounded to the specified precision and then the corresponding range is checked
for overflow/underflow. The single-precision operation on canonical single-precision values
produces a canonical single-precision result.
See Section 4.7.7 for details of the stored result on overflow, underflow, or inexact result.
MULx Fa.rx,Fb.rx,Fc.wx
!Floating-point Operate format
Invalid Operation
Overflow
Underflow
Inexact Result
MULS Multiply S_floating
MULT Multiply T_floating
Rounding: Dynamic (/D)
Minus infinity (/M)
Chopped (/C)
Trapping: Exception Completion (/S)
Underflow Enable (/U)
Inexact Enable (/I)