From a4e81a265038b42acd27ef315d1796dd332c50e0 Mon Sep 17 00:00:00 2001
From: Christian Cunningham <cc@localhost>
Date: Sat, 13 Jul 2024 21:32:21 -0700
Subject: Strings

---
 lstring.inc | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 lstring.inc

(limited to 'lstring.inc')

diff --git a/lstring.inc b/lstring.inc
new file mode 100644
index 0000000..b7eed88
--- /dev/null
+++ b/lstring.inc
@@ -0,0 +1,35 @@
+%ifndef LSTRING_INC
+%define LSTRING_INC
+%ifndef SYS_INC
+%include "sys.inc"
+%endif
+
+%macro make_lstring 2-*
+%1_len_b:	dq	%1_len
+%1:	db	%2
+	%rep %0-2
+	db %3
+	%rotate 1
+	%endrep
+	%rotate 2
+%1_len		equ	$-%1
+%endm
+
+	section .text
+print_lstring:
+	;; rax = lstring address
+	push	rbp
+	mov	rbp,	rsp
+	;;
+	push	rax
+	mov	rdx,	[rax]
+	mov	rsi,	rax
+	add	rsi,	8
+	mov	rax,	SYS_WRITE
+	mov	rdi,	1
+	syscall
+	;; 
+	mov	rsp,	rbp
+	pop	rbp
+	ret
+%endif
-- 
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