11. Another example is double precision division and multiplication that works specifically with the AX and DX registers. 12. At 128 bits, the SSE XMMn registers could pack two double precision floats into one register. 13. I have a serial stream in, which is double precision floating point, in IEEE 754. 14. Floating-point arithmetic operations were performed by software, and double precision was not supported at all. 15. This evaluates to 3 for IEEE single precision and 4 for both double precision and double extended formats. 16. Additional 1108 hardware instructions included double precision arithmetic, double-word load, store, and comparison instructions. 17. Both PDM and PLM are double precision ; the difference is in whether they are in imagespace or lightspace. 18. The PPU is enhanced in the double precision floating point operations, tailored for high performance computing in supercomputers. 19. The architecture only distinguishes single and double precision numbers & ndash; integers are just reals with a zero exponent. 20. Square root instructions have an 18-or 33-cycle latency for single precision or double precision , respectively.