基于FPGA自主控制浮点加减控制器设计
发布时间：2018-01-24 10:50
本文关键词： FPGA 浮点加减法运算 控制器 多操作数 出处：《计算机测量与控制》2014年09期 论文类型：期刊论文
【摘要】：为实现一种能够自主完成浮点数加/减运算功能的浮点数加/减运算执行控制器,提出了一种基于采用FPGA并行操作电路硬连接的浮点数加/减运算控制电路及其时序控制方法;该控制器在接收到操作数类型与参与运算的操作数后,在内部时序脉冲作用下.可以自主完成操作数的配置以及浮点数加/减法运算的功能,运算结果传输到系统数据总线;论述了该控制器的电路构成和基本原理,分析操作数类型与操作数在内部时序脉冲作用下的执行过程,应用Verilog HDL语言实现相关硬件的构建和连接;设计完成后通过仿真测试可知,该控制器运行的最高频率可达178.317 M,从输入端口到输出端口的延时数据为:最小延时是3.185 ns,最大延时是15.336 ns,耗用的IO输入输出端口占总资源的27.92%,数据表明该控制器提高了运算器的运算速度,且能够自主完成浮点数加/减运算。
[Abstract]:In order to realize a floating-point addition / subtraction execution controller which can independently complete the floating-point addition / subtraction function. A floating-point addition / subtraction control circuit based on hard connection of FPGA parallel operation circuit and its timing control method are proposed. After receiving the Operand type and the operands participating in the operation, the controller can independently complete the configuration of the Operand and the function of the floating-point addition / subtraction under the action of the internal sequential pulse. The operation result is transmitted to the system data bus; The circuit structure and basic principle of the controller are discussed, and the implementation process of Operand type and Operand under the action of internal sequential pulse is analyzed. Using Verilog HDL language to realize the construction and connection of related hardware; After the design is finished, the simulation results show that the maximum frequency of the controller can reach 178.317 M.The delay data from the input port to the output port are as follows: the minimum delay is 3.185 ns. The maximum delay is 15.336 ns, and the IO input and output ports consumed account for 27.92% of the total resources. The data show that the controller improves the speed of the processor. And can independently complete floating point addition / subtraction operation.
【作者单位】： 广西科技大学电气与信息工程学院;
【基金】：广西科学基金(桂科自2011GXNSFAO18153)
【分类号】：TP332
【正文快照】： o引言 晚:产白产姑科粉描、-贫结许面+始T邮坦宜知粉估随着信息应用领域对数据;?算精度要求的不断提高和数值、-姑“廿田丁ms上还算范围的不断扩大,使得浮点:?算的研究越来越重要。浮点曰|┦，
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