diff --git a/tests/a.out b/tests/a.out
deleted file mode 100755
index fa74bf1..0000000
Binary files a/tests/a.out and /dev/null differ
diff --git a/tests/mult.c b/tests/mult.c
new file mode 100644
index 0000000..01a3041
--- /dev/null
+++ b/tests/mult.c
@@ -0,0 +1,9 @@
+#include <stdint.h>
+
+int main(){
+	unsigned int x, y;
+	x = 20;
+	x = 5;
+
+	x *= y;
+}
\ No newline at end of file
diff --git a/tests/mult.s b/tests/mult.s
new file mode 100644
index 0000000..6f36c87
--- /dev/null
+++ b/tests/mult.s
@@ -0,0 +1,32 @@
+	.file	"mult.c"
+	.option nopic
+	.attribute arch, "rv32i2p1"
+	.attribute unaligned_access, 0
+	.attribute stack_align, 16
+	.text
+	.globl	__mulsi3
+	.align	2
+	.globl	main
+	.type	main, @function
+main:
+	addi	sp,sp,-32
+	sw	ra,28(sp)
+	sw	s0,24(sp)
+	addi	s0,sp,32
+	li	a5,20
+	sw	a5,-20(s0)
+	li	a5,5
+	sw	a5,-20(s0)
+	lw	a1,-24(s0)
+	lw	a0,-20(s0)
+	call	__mulsi3
+	mv	a5,a0
+	sw	a5,-20(s0)
+	li	a5,0
+	mv	a0,a5
+	lw	ra,28(sp)
+	lw	s0,24(sp)
+	addi	sp,sp,32
+	jr	ra
+	.size	main, .-main
+	.ident	"GCC: () 13.2.0"