Add ES/Lab/LAB5/SEARCH.asm

ES/Lab/LAB5/SEARCH.asm

@@ -0,0 +1,45 @@
+	AREA RESET, DATA, READONLY
+	EXPORT __Vectors
+__Vectors
+	DCD 0x10001000
+	DCD Reset_Handler
+	ALIGN
+
+	AREA MYCODE, CODE, READONLY
+	ENTRY
+	EXPORT Reset_Handler
+
+Reset_Handler
+	MOV    R5, #8
+	LDR    R0, =SRC
+	LDR    R2, =target
+	LDR    R7, [R2]
+	LDR    R3, =result
+	LDR    R8, =found_addr
+	MOV    R4, #0
+	STR    R4, [R3]
+	STR    R4, [R8]
+loop
+	LDR    R1, [R0], #4
+	CMP    R1, R7
+	BEQ    found
+	SUBS   R5, R5, #1
+	BNE    loop
+	B      STOP
+found
+	MOV    R4, #1
+	STR    R4, [R3]
+	SUB    R6, R0, #4
+	STR    R6, [R8]
+STOP
+	B      STOP
+
+	AREA CONSTS, DATA, READONLY
+SRC        DCD 0xA, 0xB, 0xC, 0xD, 0xE, 0xF, 0x1, 0x2
+target     DCD 0x1
+
+	AREA DATA1, DATA, READWRITE
+result     DCD 0
+found_addr DCD 0
+
+	END