Renesas M32R-FPU Manuel d'utilisateur télécharger pdf (Page 92)

3-54

M32R-FPU Software Manual (Rev.1.01)

INSTRUCTIONS

3.2 Instruction description

FTOIFTOI

[Mnemonic]

FTOI Rdest,Rsrc

[Function]

Convert the floating-point single precision value to 32-bit integer.

Rdest = (signed int) Rsrc ;

[Description]

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

result in Rdest.

The result is rounded toward 0 regardless of the value in the RM field of FPSR. The condition

bit (C) remains unchanged.

[EIT occurrence]

Floating-Point Exceptions (FPE)

• Unimplemented Operation Exception (UIPL)

• Invalid Operation Exception (IVLD)

• Inexact Exception (IXCT)

[Encoding]

floating-point Instructions

Float to Integer

[M32R-FPU Extended Instruction]

src1101 00000000 dest0100 00001000

FTOI Rdest,Rsrc

1 2 ... 87 88 89 90 91 92 93 94 95 96 97 ... 193 194

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Renesas M32R-FPU Manuel d'utilisateur Page 92