4.10.6 IEEE Floating Add
Format:
ADDxFa.rx,Fb.rx,Fc.wx!Floating-point Operate format
Operation:
Fc ← Fav + Fbv
Exceptions:
Invalid Operation
Overflow
Underflow
Inexact Result
Instruction mnemonics:
ADDS | Add S_floating |
ADDT | Add T_floating |
Qualifiers:
Rounding: | Dynamic (/D) |
| Minus infinity (/M) |
| Chopped (/C) |
Trapping: | Exception Completion (/S) |
| Underflow Enable (/U) |
| Inexact Enable (/I) |
Description:
Register Fa is added to register Fb, and the sum is written to register Fc.
The sum is rounded to the specified precision and then the corresponding range is checked for overflow/underflow. The
See Section 4.7.7 for details of the stored result on overflow, underflow, or inexact result.
Instruction Descriptions