Hackaday

The Pentium Processor’s Innovative (and Complicated) Method Of Multiplying By Three, Fast

[Ken Shirriff] has been sharing a really low-level look at Intel’s Pentium (1993) processor. The Pentium’s architecture was highly innovative in many ways, and one of [Ken]’s most recent discoveries ...
Hackaday

Using Integer Addition To Approximate Float Multiplication

Once the domain of esoteric scientific and business computing, floating point calculations are now practically everywhere. From video games to large language models and kin, it would seem that a ...
Semiconductor Engineering

Achieving Numerical Precision And Design Customization With Flexible Floating-Point IP

As defined by the IEEE 754 standard, floating-point values are represented in three fields: a significand or mantissa, a sign bit for the significand and an exponent field. The exponent is a biased ...
EDN

Tutorial: Floating-point arithmetic on FPGAs

[Editor's note: For an intro to fixed-point math, see Fixed-Point DSP and Algorithm Implementation. For a comparison of fixed- and floating-point hardware, see Fixed vs. floating point: a surprisingly ...
EDN

Targeting Floating-Point Algorithms for FPGA or ASIC Deployment

Native Floating-Point HDL code generation allows you to generate VHDL or Verilog for floating-point implementation in hardware without the effort of fixed-point conversion. Native Floating-Point HDL ...
Design-Reuse

How to Reduce FPGA Logic Cell Usage by >x5 for Floating-Point FFTs

Here we provide rational for using Centar’s floating-point IP core for the new Altera Arria 10 and Stratix 10 FPGA platforms. After a short contextual discussion section, a comparison of various FFT ...
Design-Reuse

Procrastination Is All You Need: Exponent Indexed Accumulators for Floating Point, Posits and Logarithmic Numbers

This paper discusses a simple and effective method for the summation of long sequences of floating point numbers. The method comprises two phases: an accumulation phase where the mantissas of the ...