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Section 3 Floating-Point Unit (FPU)
R01UH0134EJ0400 Rev. 4.00 Page 95 of 2108
Sep 24, 2014
SH7262 Group, SH7264 Group
Section 3 Floating-Point Unit (FPU)
3.1 Features
The FPU has the following features.
Conforms to IEEE754 standard
16 single-precision floating-point registers (can also be referenced as eight double-precision
registers)
Two rounding modes: Round to nearest and round to zero
Denormalization modes: Flush to zero
Five exception sources: Invalid operation, divide by zero, overflow, underflow, and inexact
Comprehensive instructions: Single-precision, double-precision, and system control