From 8a7d5b1064f8cedc319752da1f71251e70cc1922 Mon Sep 17 00:00:00 2001
From: Ken Thompson <ken@research.uucp>
Date: Fri, 8 Jun 1979 15:51:25 -0500
Subject: [PATCH] Research V7 development Work on file usr/sys/conf/c.c Work on
 file usr/sys/conf/l.s Work on file usr/sys/conf/mch0.s

Co-Authored-By: Dennis Ritchie <dmr@research.uucp>
Synthesized-from: v7
---
 usr/sys/conf/c.c    | 86 +++++++++++++++++++++++++++++++++++++++++++++
 usr/sys/conf/l.s    | 72 +++++++++++++++++++++++++++++++++++++
 usr/sys/conf/mch0.s |  2 ++
 3 files changed, 160 insertions(+)
 create mode 100644 usr/sys/conf/c.c
 create mode 100644 usr/sys/conf/l.s
 create mode 100644 usr/sys/conf/mch0.s

diff --git a/usr/sys/conf/c.c b/usr/sys/conf/c.c
new file mode 100644
index 0000000000..8b82f1fb90
--- /dev/null
+++ b/usr/sys/conf/c.c
@@ -0,0 +1,86 @@
+#include "../h/param.h"
+#include "../h/systm.h"
+#include "../h/buf.h"
+#include "../h/tty.h"
+#include "../h/conf.h"
+#include "../h/proc.h"
+#include "../h/text.h"
+#include "../h/dir.h"
+#include "../h/user.h"
+#include "../h/file.h"
+#include "../h/inode.h"
+#include "../h/acct.h"
+
+int	nulldev();
+int	nodev();
+int	rkstrategy();
+struct	buf	rktab;
+int	htopen(), htclose(), htstrategy();
+struct	buf	httab;
+struct	bdevsw	bdevsw[] =
+{
+	nulldev, nulldev, rkstrategy, &rktab,	/* rk = 0 */
+	nodev, nodev, nodev, 0, /* rp = 1 */
+	nodev, nodev, nodev, 0, /* rf = 2 */
+	nodev, nodev, nodev, 0, /* tm = 3 */
+	nodev, nodev, nodev, 0, /* tc = 4 */
+	nodev, nodev, nodev, 0, /* hs = 5 */
+	nodev, nodev, nodev, 0, /* hp = 6 */
+	htopen, htclose, htstrategy, &httab,	/* ht = 7 */
+	nodev, nodev, nodev, 0, /* rl = 8 */
+	0
+};
+
+int	klopen(), klclose(), klread(), klwrite(), klioctl();
+int	mmread(), mmwrite();
+int	rkread(), rkwrite();
+int	htread(), htwrite();
+int	syopen(), syread(), sywrite(), sysioctl();
+
+struct	cdevsw	cdevsw[] =
+{
+	klopen, klclose, klread, klwrite, klioctl, nulldev, 0,	/* console = 0 */
+	nodev, nodev, nodev, nodev, nodev, nulldev, 0, /* pc = 1 */
+	nodev, nodev, nodev, nodev, nodev, nulldev, 0, /* lp = 2 */
+	nodev, nodev, nodev, nodev, nodev, nulldev, 0, /* dc = 3 */
+	nodev, nodev, nodev, nodev, nodev, nulldev, 0, /* dh = 4 */
+	nodev, nodev, nodev, nodev, nodev, nulldev, 0, /* dp = 5 */
+	nodev, nodev, nodev, nodev, nodev, nulldev, 0, /* dj = 6 */
+	nodev, nodev, nodev, nodev, nodev, nulldev, 0, /* dn = 7 */
+	nulldev, nulldev, mmread, mmwrite, nodev, nulldev, 0, 	/* mem = 8 */
+	nulldev, nulldev, rkread, rkwrite, nodev, nulldev, 0,	/* rk = 9 */
+	nodev, nodev, nodev, nodev, nodev, nulldev, 0, /* rf = 10 */
+	nodev, nodev, nodev, nodev, nodev, nulldev, 0, /* rp = 11 */
+	nodev, nodev, nodev, nodev, nodev, nulldev, 0, /* tm = 12 */
+	nodev, nodev, nodev, nodev, nodev, nulldev, 0, /* hs = 13 */
+	nodev, nodev, nodev, nodev, nodev, nulldev, 0, /* hp = 14 */
+	htopen, htclose, htread, htwrite, nodev, nulldev, 0,	/* ht = 15 */
+	nodev, nodev, nodev, nodev, nodev, nulldev, 0, /* du = 16 */
+	syopen, nulldev, syread, sywrite, sysioctl, nulldev, 0,	/* tty = 17 */
+	nodev, nodev, nodev, nodev, nodev, nulldev, 0, /* rl = 18 */
+	0
+};
+
+int	ttyopen(), ttyclose(), ttread(), ttwrite(), ttyinput(), ttstart();
+struct	linesw	linesw[] =
+{
+	ttyopen, nulldev, ttread, ttwrite, nodev, ttyinput, ttstart, /* 0 */
+	0
+};
+int	rootdev	= makedev(0, 0);
+int	swapdev	= makedev(0, 0);
+int	pipedev = makedev(0, 0);
+int	nldisp = 1;
+daddr_t	swplo	= 4000;
+int	nswap	= 872;
+	
+struct	buf	buf[NBUF];
+struct	file	file[NFILE];
+struct	inode	inode[NINODE];
+int	mpxchan();
+int	(*ldmpx)() = mpxchan;
+struct	proc	proc[NPROC];
+struct	text	text[NTEXT];
+struct	buf	bfreelist;
+struct	acct	acctbuf;
+struct	inode	*acctp;
diff --git a/usr/sys/conf/l.s b/usr/sys/conf/l.s
new file mode 100644
index 0000000000..c555d95c13
--- /dev/null
+++ b/usr/sys/conf/l.s
@@ -0,0 +1,72 @@
+/ low core
+
+.data
+ZERO:
+
+br4 = 200
+br5 = 240
+br6 = 300
+br7 = 340
+
+. = ZERO+0
+	br	1f
+	4
+
+/ trap vectors
+	trap; br7+0.		/ bus error
+	trap; br7+1.		/ illegal instruction
+	trap; br7+2.		/ bpt-trace trap
+	trap; br7+3.		/ iot trap
+	trap; br7+4.		/ power fail
+	trap; br7+5.		/ emulator trap
+	start;br7+6.		/ system  (overlaid by 'trap')
+
+. = ZERO+40
+.globl	start, dump
+1:	jmp	start
+	jmp	dump
+
+
+. = ZERO+60
+	klin; br4
+	klou; br4
+
+. = ZERO+100
+	kwlp; br6
+	kwlp; br6
+
+. = ZERO+114
+	trap; br7+7.		/ 11/70 parity
+
+. = ZERO+220
+	rkio; br5
+
+. = ZERO+224
+	htio; br5
+
+. = ZERO+240
+	trap; br7+7.		/ programmed interrupt
+	trap; br7+8.		/ floating point
+	trap; br7+9.		/ segmentation violation
+
+//////////////////////////////////////////////////////
+/		interface code to C
+//////////////////////////////////////////////////////
+
+.text
+.globl	call, trap
+
+.globl	_klrint
+klin:	jsr	r0,call; jmp _klrint
+.globl	_klxint
+klou:	jsr	r0,call; jmp _klxint
+
+.globl	_clock
+kwlp:	jsr	r0,call; jmp _clock
+
+
+.globl	_rkintr
+rkio:	jsr	r0,call; jmp _rkintr
+
+.globl	_htintr
+htio:	jsr	r0,call; jmp _htintr
diff --git a/usr/sys/conf/mch0.s b/usr/sys/conf/mch0.s
new file mode 100644
index 0000000000..67346533b2
--- /dev/null
+++ b/usr/sys/conf/mch0.s
@@ -0,0 +1,2 @@
+HTDUMP = 1
+TUDUMP = 0
-- 
2.20.1