From f95a4a932476be2ba99e2fd081e8d2bc6ea12813 Mon Sep 17 00:00:00 2001
From: PikalaxALT <pikalaxalt@gmail.com>
Date: Fri, 15 Dec 2017 09:38:53 -0500
Subject: Import newlib and create makefile

---
 newlib/libc/sys/go32/kbhit.s | 51 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 newlib/libc/sys/go32/kbhit.s

(limited to 'newlib/libc/sys/go32/kbhit.s')

diff --git a/newlib/libc/sys/go32/kbhit.s b/newlib/libc/sys/go32/kbhit.s
new file mode 100644
index 0000000..0f34e1b
--- /dev/null
+++ b/newlib/libc/sys/go32/kbhit.s
@@ -0,0 +1,51 @@
+/* This is file KBHIT.S */
+/*
+** Copyright (C) 1993 DJ Delorie, 24 Kirsten Ave, Rochester NH 03867-2954
+**
+** This file is distributed under the terms listed in the document
+** "copying.dj", available from DJ Delorie at the address above.
+** A copy of "copying.dj" should accompany this file; if not, a copy
+** should be available from where this file was obtained.  This file
+** may not be distributed without a verbatim copy of "copying.dj".
+**
+** This file is distributed WITHOUT ANY WARRANTY; without even the implied
+** warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+*/
+
+	.globl	_kbhit
+_kbhit:
+	pushl	%ebp
+	movl	%esp,%ebp
+	pushl	%ebx
+	pushl	%esi
+	pushl	%edi
+
+try_again:
+	movl	$0x41a,%eax
+	call	dosmemsetup
+	movzwl	%gs:(%eax),%ebx
+	movzwl	%gs:2(%eax),%ecx
+	cmp	%ebx,%ecx
+	je	key_not_hit
+
+	movb	$0x11,%ah
+	int	$0x16
+	jz	key_not_hit
+	cmp	$0,%eax
+	jne	key_hit
+	movb	$0x10,%ah
+	int	$0x16
+	jmp	try_again
+
+key_not_hit:
+	movl	$0,%eax
+	jmp	L1
+
+key_hit:
+	movl	$1,%eax
+L1:
+	popl	%edi
+	popl	%esi
+	popl	%ebx
+	leave
+	ret
-- 
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