solved Task 3c

project/app/struct_code.s

@@ -112,6 +112,30 @@ case_blue
 		; Show Diff on 7-Segment
 		LDR			R3, =ADDR_7_SEG_BIN_DS3_0
 		STRB		R2, [R3]
+		
+		; Show Bits on lcd Display
+		LDR			R3, =0x8
+		SUBS		R3, R3, R2
+		BLS			case_8_bit
+		LDR			R3, =0x4
+		SUBS		R3, R3, R2
+		BLS			case_4_bit
+case_2_bit
+		LDR        R4, =DISPLAY_2_BIT
+		B			end_case
+case_4_bit
+		LDR        R4, =DISPLAY_4_BIT
+		B			end_case
+case_8_bit
+		LDR        R4, =DISPLAY_8_BIT
+		
+end_case
+		LDR        R3, =ADDR_LCD_ASCII
+        
+        LDR        R4, [R4]
+        STRB       R4, [R3]
+		
+		BL			write_bit_ascii
 
 		B          main_loop
 case_red