I wrote Verilog code to display "Hello world!" and my student ID with initials on the FPGA LCD screen. Please write a test bench code to create a simulation that verifies the state changes correctly. Also, I want the LCD screen to display a single line with "HELLO WORLD! $+$ student ID and initials" without clearing the LINE$2$ state code. How should I modify the code? And please let me know how to modify the code by changing only two lines to make the text shift three spaces to the right on the display. Finally, Please tell me how to change the code to make the letters shift one letter at a time like an LED light.

$($I have attached only a part of the code because of the limited number of characters.$)$

LINEI:

begin

case$($cnt$)$

$00$: $\{$Icd$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$0\_(0)\_(1000)\_(0000)$:

$01$ : $\{$Icd$\_($r$)$s$,$ Icd$\_($r$)$w$.,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0010)\_(0000)$;

$02$ : $($lcd$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$)=10\text{'}$b$1\_(0)\_(0100)\_(1000)$;

$03$ : $\{$lcd$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0100)\_(0101)$:

$04$: $\{$lcd$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0100)\_(1100)$:

$05$: $\{$lcd$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0100)\_(1100)$;

$06$ : $\{$lcd$\_($r$)$s$,$ Icd$\_($r$)$iv$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0010)\_(1111)$;

$07$ : $\{$lcd$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0010)\_(1111)$:

$08$: $\{$lod$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0101)\_(0111)$;

$09$: $\{$lcd$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0100)\_(1111)$:

$10$: $\{$Icd$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0101)\_(0010)$:

$11$ : $\{$Icd$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0100)\_(1100)$;

$12$: $\{$Icd$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0100)\_(0100)$;

$13$ : $\{$lcd$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0010)\_(0001)$;

$14$ : $\{$lcd$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0010)\_(0000)$;

$15$ : $\{$lcd$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0010)\_(0000)$:

$16$ : $\{$Icd$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0010)\_(0000)$;

default : $\{$lcd$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0010)\_(0000)$;

LINE$2$ :

begin

case$($cnt$)$

$00$:$\{$lcd$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10.$b$0\_(0)\_(1100)\_(0000)$;

$01$:$\{$lod$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10.$b$1\_(0)\_(0011)\_(0010)$;

$02$:$\{$licd$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0011)\_(0000)$:

$03$: $\{$lcd$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10.$b$1\_(0)\_(0011)\_(0010)$;

$04$: $\{$lcd$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0011)\_(0001)$:

$05$ : $\{$lcd$\_($r$)$s$,$ Icd$\_($r$)$w$.$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0011)\_(0001)$:

$06$: $\{$lod$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0011)\_(0001)$;

$07$ : $\{$lcd$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0011)\_(0001)$;

$08$:$\{$lcd$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0011)\_(0000)$;

$09$: : $\{$lod$\_($r$)$s$,$ lod$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0011)\_(0000)$;

$10$: $\{$lcd$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0011)\_(0000)$;

$11$ : $\{$led$\_($r$)$s$,$ Icd$\_($r$)$w$,$ Icd$\_($d$)$ata$\}=10\text{'}$b$1\_(0)\_(0010)\_(0000)$;

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