 Plagued with hardware bugs and poor compiler support, it was seldom used in any of the devices based on those chips and the product line was discontinued on April 1, 2008.The coprocessor has 16 64-bit registers which can be used for 32- or 64-bit integer and floating point operations and its floating point format is based on the IEEE-754 standard.It has its own instruction set which performs floating point addition, subtraction, multiplication, negation, absolute value, and comparisons as well as addition, multiplication and bit shifts on integers.