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Description: Vhdl实现计算exp功能 在apex20k上经过验证-Vhdl achieve in terms exp function on proven apex20k
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Size: 2378 |
Author: 刘陆陆 |
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Description: Vhdl实现计算exp功能 在apex20k上经过验证-Vhdl achieve in terms exp function on proven apex20k
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Size: 2048 |
Author: 刘陆陆 |
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Description: cordic methods describe essentially the same algorithm that with suitably chosen inputs can be used to calculate a whole range of scientific functions including sin, cos, tan, arctan, arcsin, arccos, sinh, cosh, tanh, arctanh, log, exp, square root and even multiply and divide.
the method dates back to volder [1959], and due to its versatility and compactness, it made possible the microcoding of the hp35 pocket scientific calculator in 1972.
here is some code to illustrate the techniques. ive split the methods into three parts linear, circular and hyperbolic. in the hp35 microcode these would be unified into one function (for space reasons). because the linear mode can perform multiply and divide, you only need add/subtract and shift to complete the implementation.
you can select in the code whether to do the multiples and divides also by cordic means. other multiplies and divides are all powers of 2 (these dont count). to eliminate these too, would involve ieee hackery.-cordic methods describe essentially the same algorithm that with suitably chosen inputs can be used to calculate a whole range of scientific functions including sin, cos, tan, arctan, arcsin, arccos, sinh, cosh, tanh, arctanh, log, exp, square root and even multiply and divide.
the method dates back to volder [1959], and due to its versatility and compactness, it made possible the microcoding of the hp35 pocket scientific calculator in 1972.
here is some code to illustrate the techniques. ive split the methods into three parts linear, circular and hyperbolic. in the hp35 microcode these would be unified into one function (for space reasons). because the linear mode can perform multiply and divide, you only need add/subtract and shift to complete the implementation.
you can select in the code whether to do the multiples and divides also by cordic means. other multiplies and divides are all powers of 2 (these dont count). to eliminate these too, would involve ieee hackery.
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Size: 2048 |
Author: waqas |
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Description: 基于FPGA的数码锁 基于FPGA的数码锁 -FPGA-based FPGA-based digital lock digital lock digital lock-based FPGA
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Size: 82944 |
Author: zhuxiang |
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Description: 基于VHDL编写的CPU程序，用微程序的方式实现。内含说明本程序的说明文档。-CPU program written in VHDL, with the micro-program ways.Containing the document of the program.
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Size: 1297408 |
Author: gy |
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