Import newlib and create makefile

1 files changed, 59 insertions, 0 deletions

diff --git a/newlib/libc/sys/go32/getkey.s b/newlib/libc/sys/go32/getkey.s
new file mode 100644
index 0000000..876483e
--- /dev/null
+++ b/newlib/libc/sys/go32/getkey.s
@@ -0,0 +1,59 @@
+/* This is file GETKEY.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.
+
+Modified by J. Alan Eldridge, Liberty Brokerage, 77 Water St, NYC 10005
+
+Changed handling of characters starting with 0xE0:
+	Now calls interrupt 16, function 10
+	if leading byte was 0x00, ah = 0x01
+	if leading byte was 0xE0, ah = 0x02
+
+	The main function is now called getxkey()...
+	getkey is provided to maintain compatibility with
+	already written software
+*/
+
+	.globl	_getxkey
+_getxkey:
+	pushl	%ebx
+	pushl	%esi
+	pushl	%edi
+	movb	$0x10,%ah
+	int	$0x16
+	mov	$1,%bl
+	cmpb	$0,%al
+	je	L0
+	cmpb	$0xE0,%al
+	jne	L1
+	inc	%bl
+L0:
+	movb	%ah,%al
+	movb	%bl,%ah
+	jmp	L2
+L1:
+	movb	$0,%ah
+L2:
+	andl	$0xffff,%eax
+	popl	%edi
+	popl	%esi
+	popl	%ebx
+	ret
+
+	.globl	_getkey
+_getkey:
+	call	_getxkey
+	testb	$0x02,%ah
+	jz	L3
+	movb	$0x01,%ah
+L3:
+	ret