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M32R-FPU Software Manual (Rev.1.01)

INSTRUCTIONS

3.2 Instruction description

ITOFITOF

[Mnemonic]

ITOF Rdest,Rsrc

[Function]

Convert the integer to a floating-point single precision value.

Rdes = (float) Rsrc ;

[Description]

Converts the 32-bit integer stored in Rsrc to a floating-point single precision value and stores

the result in Rdest. The result is rounded according to the RM field of FPSR. The condition bit (C)

remains unchanged. H’0000 0000 is handled as “+0” regardless of the Rounding Mode.

[EIT occurrence]

Floating-Point Exceptions (FPE)

• Inexact Exception (IXCT)

[Encoding]

floating-point Instructions

Integer to float

[M32R-FPU Extended Instruction]

src1101 00000000 dest0100 00000000

ITOF Rdest,Rsrc

1 2 ... 91 92 93 94 95 96 97 98 99 100 101 ... 193 194

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