How to implement a shift register in VHDL - Surf-VHDL
test bench of a 32x8 register file VHDL - Stack Overflow
VHDL and FPGA terminology - VHDLwhiz
VHDL Code for 4-bit Ring Counter and Johnson Counter
D-type Flip Flop Counter or Delay Flip-flop
Solved Create a structural model of a 4-bit shift register | Chegg.com
8 ways to create a shift register in VHDL - VHDLwhiz
ECE 545 Lecture 7 Behavioral Modeling of Sequential-Circuit Building Blocks Mixing Design Styles Modeling of Circuits with a Regular Structure. - ppt download
VHDL code for flip-flops using behavioral method - full code