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
FTOS FTOS
[Mnemonic]
FTOS Rdest,Rsrc
[Function]
Convert the floating-point single precision value to 16-bit integer.
Rdest = (signed int) Rsrc ;
[Description]
Convert the floating-point single precision value stored in Rsrc to a 16-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 short
[M32R-FPU Extended Instruction]
src 1101 0000 0000 dest 0100 0000 1100
FTOS Rdest,Rsrc