Assembly: mscorlib (in mscorlib.dll)
The following table lists the instruction's hexadecimal and Microsoft Intermediate Language (MSIL) assembly format, along with a brief reference summary:
Convert unsigned integer to floating-point, pushing F on stack.
The stack transitional behavior, in sequential order, is:
value is pushed onto the stack.
value is popped from the stack and the conversion operation is attempted.
If the conversion is successful, the resulting value is pushed onto the stack.
The conv.r.un opcode converts the value on top of the stack to the type specified in the opcode, and leave that converted value on the top of the stack. Integer values of less than 4 bytes are extended to int32 when they are loaded onto the evaluation stack (unless conv.i or conv.u is used, in which case the result is also natural int). Floating-point values are converted to the F type.
Conversion from floating-point numbers to integer values truncates the number toward zero. When converting from a float64 to a float32, precision can be lost. If value is too large to fit in a float32 (F), positive infinity (if value is positive) or negative infinity (if value is negative) is returned. If overflow occurs converting one integer type to another, the high order bits are truncated. If the result is smaller than an int32, the value is sign-extended to fill the slot.
If overflow occurs converting a floating-point type to an integer the result returned is unspecified. The conv.r.un operation takes an integer off the stack, interprets it as unsigned, and replaces it with a floating-point number to represent the integer: either a float32, if this is wide enough to represent the integer without loss of precision, or else a float64.
No exceptions are ever thrown when using this field.
The following Emit method overload can use the conv.r.un opcode:
Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.