tlindner

# Color Computer RS-DOS disk format.

unused = 0xff

sector[1..] = input[0..255]

track[0..] = sector[1-18]

granule[1..17] = track[0..½]
granule[18..] = track[18..18½]

tlindner

diff --git a/src/devices/cpu/m6809/hd6309.ops b/src/devices/cpu/m6809/hd6309.ops
index c96e3082d4..37e041e915 100644
--- a/src/devices/cpu/m6809/hd6309.ops
+++ b/src/devices/cpu/m6809/hd6309.ops
@@ -432,6 +432,7 @@ DISPATCH11:
 		case 0x3B:													%TFM;		return;
 		case 0x3C:				set_regop8(m_md);	set_imm();		%BIT8;		return;
 		case 0x3D:				set_regop8(m_md);	set_imm();		%LD8;		return;
+		case 0x3E:              machine().debugger().debug_break();             return;
 		case 0x3F:													%SWI3;		return;

tlindner

********************************************************************
* Snake - Animate slithering snake in window
*
* $Id$
*
* Edt/Rev  YYYY/MM/DD  Modified by
* Comment
* ------------------------------------------------------------------
*   1      2014/10/08  tim lindner
* Started writing code.