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   ◄Summary►  ◄Timings►  ◄Example►
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Subtract Reversed
 
Syntax:  FSUBR dest,src
 
Subtracts the destination operand from the source operand, and returns
the result in the destination operand. If two register operands are
specified, one must be ST. If a memory operand is specified, the result
replaces the value in ST. Memory operands can be 32- or 64-bit real
numbers or 16- or 32-bit integers. If no operand is specified, ST(1) is
subtracted from ST and the stack is popped, returning the difference in
ST. For FSUBRP, the source must be ST; the difference (source minus
destination) is returned in the destination register and ST is popped.
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