From: Tormod Volden <debian.tormod@gmail.com>
Date: Wed, 22 Apr 2015 20:47:23 +0000 (+0200)
Subject: dragon-nx32: Add jump to null_handler at 0
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=a014b984c52343132fe63d41cf671c1034e2ec58;p=FUZIX.git

dragon-nx32: Add jump to null_handler at 0

Signed-off-by: Tormod Volden <debian.tormod@gmail.com>
---

diff --git a/Kernel/platform-dragon-nx32/dragon.s b/Kernel/platform-dragon-nx32/dragon.s
index f170ecf9..2ec72dbf 100644
--- a/Kernel/platform-dragon-nx32/dragon.s
+++ b/Kernel/platform-dragon-nx32/dragon.s
@@ -10,6 +10,7 @@
 		.globl unix_syscall_entry
 		.globl fd_nmi_handler
 		.globl size_ram
+		.globl null_handler
 
 		; exported debugging tools
 		.globl _trap_monitor
@@ -33,10 +34,15 @@
 		    jmp interrupt_handler		; 0x10C
 		    jmp firq_handler			; 0x10F
 
-
 	.area .text
+
 init_early:
+	ldx #null_handler
+	stx 1
+	lda #0x7E
+	sta 0
 	rts
+
 init_hardware:
 	jsr size_ram
 	; Turn on PIA  CB1 (50Hz interrupt)