Renesas M32R-FPU, Software Manual

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3
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M32R-FPU Software Manual (Rev.1.01)
INSTRUCTIONS
3.2 Instruction description
ITOF ITOF
[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]
src 1101 0000 0000 dest 0100 0000 0000
ITOF Rdest,Rsrc