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M32R-FPU Software Manual (Rev.1.01)

INSTRUCTIONS

3.2 Instruction description

UTOFUTOF

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]

src1101 00000000 dest0100 00000100

UTOF Rdest,Rsrc

1 2 ... 151 152 153 154 155 156 157 158 159 160 161 ... 193 194

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