Converts numbers from integer representation to floating point representation
and vice versa.
An optional Y-Operand can be used to specify one of the following
rounding modes:
ROUND_OFF, ROUND_UP, ROUND_DOWN, or ROUND_NEAR.
FLOT:
"convert fixed to floating".
The integer in $Z or the immediate constant Z is converted to the nearest floating point value (using the
current rounding mode) and placed in register $X. A floating inexact exception occurs if rounding is necessary.
FLOTU:
"convert fixed to floating unsigned".
FLOTU is like FLOT, but $Z is treated as an unsigned integer.
FIX:
"convert floating to fixed".
The floating point number in register $Z is converted to an integer as with the FINT instruction, and the
resulting integer (mod 264) is placed in register $X. An invalid exception occurs if $Z is infinite or a NaN;
in that case $X is simply set equal to $Z. A float-to-fix exception occurs if the result is less than −264 or
greater than 264 - 1.
FIXU:
"convert floating to fixed unsigned".
This instruction is identical to FIX except that no float-to-fix exception occurs.
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