1 files changed, 32 insertions, 0 deletions
diff --git a/bootblocks/noboot.s b/bootblocks/noboot.s
new file mode 100644
index 0000000..7ab9f4e
--- /dev/null
+++ b/bootblocks/noboot.s
@@ -0,0 +1,32 @@
+
+org $7c00
+
+include sysboot.s
+
+org dos_sysid
+   .ascii "PANIC"	! System ID
+
+org codestart
+  xor	ax,ax
+  mov	ds,ax
+  mov	ss,ax
+  mov	sp,ax
+  jmpi	code,#0
+
+no_os:
+  .asciz	"PANIC! NO OS Found!\r\n"
+
+code:		! SI = pointer to error message
+  mov	si,#no_os
+nextc:
+  lodsb
+  cmp	al,#0
+  jz	eos
+  mov	bx,#7
+  mov	ah,#$E		! Can't use $13 cause that's AT+ only!
+  int	$10
+  jmp	nextc
+eos:			! Wait for a key then reboot
+  xor	ax,ax
+  int	$16
+  jmpi	$0,$FFFF	! Wam! Try or die!