Urgent help in verilog code for cyclone 4 e

This is the code written to display some numbers on lcd.

ASCII to Numbers/Letters

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-------------------Function Set-------------------

when S0 =>

current_state <= S1;

LCD_DATA <= "00110000";

LCD_ENABLE <= '0';

LCD_RW <= '0';

LCD_RS <= '0';

when S1 =>

current_state <= S2;

LCD_DATA <= "00110000";

LCD_ENABLE <= '1';

LCD_RW <= '0';

LCD_RS <= '0';

when S2 =>

current_state <= S3;

LCD_DATA <= "00110000";

LCD_ENABLE <= '0';

LCD_RW <= '0';

LCD_RS <= '0';

-------------------Reset Display-------------------

when S3 =>

current_state <= S4;

LCD_DATA <= "00000001";

LCD_ENABLE <= '0';

LCD_RW <= '0';

LCD_RS <= '0';

when S4 =>

current_state <= S5;

LCD_DATA <= "00000001";

LCD_ENABLE <= '1';

LCD_RW <= '0';

LCD_RS <= '0';

when S5 =>

current_state <= S6;

LCD_DATA <= "00000001";

LCD_ENABLE <= '0';

LCD_RW <= '0';

LCD_RS <= '0';

-------------------Display On-------------------

when S6 =>

current_state <= S7;

LCD_DATA <= "00001110";

LCD_ENABLE <= '0';

LCD_RW <= '0';

LCD_RS <= '0';

when S7 =>

current_state <= S8;

LCD_DATA <= "00001110";

LCD_ENABLE <= '1';

LCD_RW <= '0';

LCD_RS <= '0';

when S8 =>

current_state <= S9;

LCD_DATA <= "00001110";

LCD_ENABLE <= '0';

LCD_RW <= '0';

LCD_RS <= '1';

...

..

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