From cb62e18f5698dad76538ec55bff9dd659762b391 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C3=A9my=20GIBERT?= <burniouf@users.noreply.github.com>
Date: Fri, 25 May 2018 21:03:31 +0200
Subject: [PATCH] Kernel 0.9.1 : KERNEL, Preemtive mode.

---
 LIB/LIBTCPIP.S.HST.txt |  4 ++--
 LIB/LIBTCPIP.S.txt     |  4 ++--
 README.md              | 19 ++++++++++++++++++-
 3 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/LIB/LIBTCPIP.S.HST.txt b/LIB/LIBTCPIP.S.HST.txt
index bed927a8..6d41ab88 100644
--- a/LIB/LIBTCPIP.S.HST.txt
+++ b/LIB/LIBTCPIP.S.HST.txt
@@ -30,10 +30,10 @@ HST.GetByName	>PULLW ZPPtrDNS
 
 				>PUSHW ZPPtrIP
 				
-				>PUSHW L.HST.SSScanF			
+				>PUSHW L.HST.SScanF			
 				>LDYA ZPPtrDNS
+
 				>SYSCALL SScanF.YA
-				
 				bcc .9
 				jmp DNS.QUERY.I
 .9				rts
diff --git a/LIB/LIBTCPIP.S.txt b/LIB/LIBTCPIP.S.txt
index 2594b6a1..cc6c6e98 100644
--- a/LIB/LIBTCPIP.S.txt
+++ b/LIB/LIBTCPIP.S.txt
@@ -94,7 +94,7 @@ L.DNS.MSG		.DA DNS.MSG
 L.ARP.CACHE		.DA ARP.CACHE
 L.DNS.CACHE		.DA DNS.CACHE
 L.SKT.Template	.DA SKT.Template
-L.HST.SSScanF	.DA HST.SSScanF
+L.HST.SScanF	.DA HST.SScanF
 L.TmpByte		.DA TmpByte
 L.TCP.IN.JMP	.DA TCP.IN.JMP.CLOSED
 				.DA TCP.IN.JMP.LISTEN
@@ -289,7 +289,7 @@ TmpOffset		.BS 2
 hFrameIn		.BS 1
 hFrameOut		.BS 1
 bTextMode		.BS 1
-HST.SSScanF		.AZ "%d.%d.%d.%d"
+HST.SScanF		.AZ "%d.%d.%d.%d"
 IP.ID			.BS 2
 IP.CHECKSUM		.BS 4
 NODE.SSOCK		.BS 1					S.NODE.HANDLER
diff --git a/README.md b/README.md
index 423ebb34..6f61a064 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,24 @@
 
 ## Latest News 2018-04-29
 
-Kernel 0.9.1 is now preemptive. All you need is a "tick" source, see below for supported hardware. 
+Kernel 0.9.1 is now preemptive. 
+
+It defaults to cooperative mode ('P'olling mode). For this, no particular hardware needed (except 65c02 and 128k, of course!)
+
+If you want to enable preemptive mode, all you need is a "tick" source to get 'V'BL or 'C'lock Mode.
+(see below for supported hardware)
+
+Then you must explicitly ENABLE it using KCONFIG utility. (see screenshot below)
+
+You can monitor the kernel state on the 'SYS' screen (OA-1, or SHIFT-OA-1 on french keyboards) and look at the upper right corner, ytou should see a blincking 'P', 'V' or 'C', showing you the current kernel state..
+
+If you enabled preemptive mode, you should see an additional blinking 'S', each time the kernel switch from one PS to another.
+
+Reminder : 
+ + (SHIFT)-OA-1 : Kernel SYS Screen
+ + (SHIFT)-OA-2 : Console Screen (Shell...)
+ + (SHIFT)-OA-3 : DHGR Screen (if loaded)
+
 For now, only SBIN/BIN executables are "switcheable". 
 
 Roadmap is as follow: