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Instruction Descriptions 4–119
4.10.14 Convert IEEE S_Floating to IEEE T_Floating
Format:
Operation:
Fc ← {conversion of Fbv}
Exceptions:
Instruction mnemonics:
Qualifiers:
Description:
The S_floating operand in register Fb is converted to T_floating format and written to register
Fc. Register Fa must be F31.
Notes:
• The conversion from S_floating to T_floating is exact. No rounding occurs. No under-
flow, overflow, or inexact result can occur. In fact, the conversion for finite values is the
identity transformation.
• A trap handler can convert an S_floating denormal value into the corresponding
T_floating finite value by adding 896 to the exponent and normalizing.
CVTST Fb.rx,Fc.wx
! Floating-point Operate format
Invalid Operation
CVTST Convert S_floating to T_floating
Trapping: Exception Completion (/S)