Renesas M32R-FPU, Software Manual

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M32R-FPU Software Manual (Rev.1.01)
INSTRUCTIONS
3.2 Instruction description
UTOF UTOF
Floating Point Instructions
Unsigned integer to float
[M32R-FPU Extended Instruction]
[Mnemonic]
UTOF Rdest,Rsrc
[Function]
Convert from unsigned integer to floating-point single precision value.
Rdest = ( float ) ( unsigned int ) Rsrc ;
[Description]
UTOF converts the 32-bit unsigned integer stored in Rsrc to a floating-point single precision
value, and the result is stored in Rdest. The result is rounded according to the RM field in FPSR.
The condition bit (C) remains unchanged.
H’0000 0000 is treated as “+0” regardless of the Rounding Mode.
[EIT occurrence]
Floating-Point Exceptions (FPE)
• Inexact Exception (IXCT)
[Encoding]
src 1101 0000 0000 dest 0100 0000 0100
UTOF Rdest,Rsrc