JTAG design verilog code.

说明：  RISC 5级流水线CPU，带HAZARD处理(RISC 5 pipeline CPU with HAZARD processing)

说明：  一个简单的CPU设计，支持add，sub，mvi，mv四条指令，用Verilog语言编写，在Quratus II上编译通过，仿真正确。(A simple CPU design, support add, sub, mvi, mv four instructions, with the Verilog language, compiled by the Quratus II, the simulation is correct.)

vhdl 加法器 vhdl 加法器 vhdl 加法器-vhdl　adder vhdl　adder vhdl　adder

台湾IC中心VHDL讲义，内容详细，适合IC前端设计参考(Taiwan s IC Center VHDL handouts, detailed reference design for front-end IC)

说明：  按键消抖,避免按键抖动造成信号误触发，增大按键输入的可靠性(Key jitter elimination, avoid key jitter caused by signal error trigger, increase the reliability of key input)

Top module name : SHIFTER (File name : SHIFTER.v) 2. Input pins: SHIFT [3:0], IN [15:0], SIGN, RIGHT. 3. Output pins: OUT [15:0]. 4. Input signals generated from test pattern are latched in one cycle and are synchronized at clock rising edge. 5. The SHIFT signal describes the shift number. The shift range is 0 to 15. 6. When the signal RIGHT is high, it shifts input data to right. On the other hand, it shifts input data to left. 7. When the signal SIGN is high, the input data is a signed number and it shifts with sign extension. However, the input data is an unsigned number if the signal SIGN is low. 8. You can only use following gates in Table I and need to include the delay information (Tplh, Tphl) in your design.

说明：  FPGA Verilog控制FLASH片外读写(Verilog Controls FLASH Out-of-Chip Read-Write)

A VHDL source code for testing the digits and the switches on a spartan 3 basys board

说明：  运用VHDL描述函数发生器的各个波形，可有构成多功能函数发生器。(VHDL description of the use of various function generator waveforms, can constitute a multi-purpose function generator.)