ARMssembly 3

ARMssembly_3/chall_3.S

@@ -0,0 +1,72 @@
+	.arch armv8-a
+	.file	"chall_3.c"
+	.text
+	.align	2
+	.global	func1
+	.type	func1, %function
+func1:
+	stp	x29, x30, [sp, -48]!
+	add	x29, sp, 0
+	str	w0, [x29, 28]
+	str	wzr, [x29, 44]
+	b	.L2
+.L4:
+	ldr	w0, [x29, 28]
+	and	w0, w0, 1
+	cmp	w0, 0
+	beq	.L3
+	ldr	w0, [x29, 44]
+	bl	func2
+	str	w0, [x29, 44]
+.L3:
+	ldr	w0, [x29, 28]
+	lsr	w0, w0, 1
+	str	w0, [x29, 28]
+.L2:
+	ldr	w0, [x29, 28]
+	cmp	w0, 0
+	bne	.L4
+	ldr	w0, [x29, 44]
+	ldp	x29, x30, [sp], 48
+	ret
+	.size	func1, .-func1
+	.align	2
+	.global	func2
+	.type	func2, %function
+func2:
+	sub	sp, sp, #16
+	str	w0, [sp, 12]
+	ldr	w0, [sp, 12]
+	add	w0, w0, 3
+	add	sp, sp, 16
+	ret
+	.size	func2, .-func2
+	.section	.rodata
+	.align	3
+.LC0:
+	.string	"Result: %ld\n"
+	.text
+	.align	2
+	.global	main
+	.type	main, %function
+main:
+	stp	x29, x30, [sp, -48]!
+	add	x29, sp, 0
+	str	w0, [x29, 28]
+	str	x1, [x29, 16]
+	ldr	x0, [x29, 16]
+	add	x0, x0, 8
+	ldr	x0, [x0]
+	bl	atoi
+	bl	func1
+	str	w0, [x29, 44]
+	adrp	x0, .LC0
+	add	x0, x0, :lo12:.LC0
+	ldr	w1, [x29, 44]
+	bl	printf
+	nop
+	ldp	x29, x30, [sp], 48
+	ret
+	.size	main, .-main
+	.ident	"GCC: (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04) 7.5.0"
+	.section	.note.GNU-stack,"",@progbits