min[u](),max[u](),islower(),isupper(),print(),puts(),strlen(),strcpy(),strcat()

console.asm

@@ -0,0 +1,46 @@
+extern	strlen
+
+section .rodata
+	NL	db	10
+section .text
+	global	print
+	global	puts
+
+;----- print (char* string) -----;
+; return value: N/A
+print:
+	push	rbp
+	mov	rbp, rsp
+
+	push	rdi
+	sub	rsp, 8
+	call	strlen
+	mov	rdx, rax
+	add	rsp, 8
+	pop	rdi
+	mov	rax, 1
+	mov	rsi, rdi
+	mov	rdi, 1
+	syscall
+
+	leave
+	ret
+;----- puts (char* string) -----;
+; return  value: N/A
+puts:
+	push	rbp
+	mov	rbp, rsp
+
+	push	rdi
+	sub	rsp, 8
+	call	print
+	add	rsp, 8
+	pop	rdi
+	mov	rax, 1
+	mov	rdi, 1
+	mov	rsi, NL
+	mov	rdx, 1
+	syscall
+
+	leave
+	ret