From 74d5977b2bc31ff843e5bf389fdc87ceaefcc53d Mon Sep 17 00:00:00 2001
From: notaz <notasas@gmail.com>
Date: Wed, 8 Apr 2009 21:40:55 +0000
Subject: [PATCH] finalize for release

---
 hexed/Makefile   | 15 +++++++++++++++
 hexed/hexed.s    | 50 +++++++++++++++++++++++++++++++++++++++++-------
 hexed/readme.txt | 19 ++++++++++++++++++
 3 files changed, 77 insertions(+), 7 deletions(-)
 create mode 100644 hexed/readme.txt

diff --git a/hexed/Makefile b/hexed/Makefile
index cebf024..0a8bc4f 100644
--- a/hexed/Makefile
+++ b/hexed/Makefile
@@ -19,3 +19,18 @@ a.out : $(OBJS)
 clean:
 	$(RM) $(TARGET) $(OBJS) $(TARGET).map a.out
 
+
+# ----------- release -----------
+ifneq ($(findstring rel,$(MAKECMDGOALS)),)
+ifeq ($(VER),)
+$(error need VER)
+endif
+endif
+
+rel: hexed.bin readme.txt src
+	zip -9 -r hexed_r$(VER).zip $^
+	rm -rf src
+
+src: hexed.s font.s sega_gcc.s md.ld Makefile
+	mkdir src
+	cp $^ src/
diff --git a/hexed/hexed.s b/hexed/hexed.s
index ca17291..93d5d35 100644
--- a/hexed/hexed.s
+++ b/hexed/hexed.s
@@ -1,9 +1,33 @@
-##################################################
-#                                                #
-# Assemble with gas                              #
-#   --register-prefix-optional --bitwise-or      #
-#                                                #
-##################################################
+###############################################################################
+#
+# Copyright (c) 2009, Gražvydas Ignotas
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of the organization nor the
+#       names of its contributors may be used to endorse or promote products
+#       derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED ''AS IS'' AND ANY
+# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL <copyright holder> BE LIABLE FOR ANY
+# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# Assemble with gas
+#   --register-prefix-optional --bitwise-or
+#
 
 .text
 .globl main
@@ -307,6 +331,12 @@ lmaploop0:
 
 	/* wait for vsync before unmask */
 	move.l 		#GFXCNTL,a3
+0:
+	move.w		(a3),d0
+	and.b		#8,d0
+	nop
+	nop
+	bne		0b
 0:
 	move.w		(a3),d0
 	and.b		#8,d0
@@ -314,7 +344,13 @@ lmaploop0:
 	nop
 	beq		0b
 
-        move.w		#0x2000,sr
+	/* wait a bit to avoid nested vint */
+	move.w		#20,d0
+0:
+	dbra		d0,0b		/* 10 cycles to go back */
+
+	/* enable vint */
+	move.w		#0x2000,sr
 
 ##################################################
 
diff --git a/hexed/readme.txt b/hexed/readme.txt
new file mode 100644
index 0000000..cac50e0
--- /dev/null
+++ b/hexed/readme.txt
@@ -0,0 +1,19 @@
+-------------------------------------------------------------------------------
+hexed - realtime memory viewer for Genesis/Megadrive
+  written by Gražvydas "notaz" Ignotas
+-------------------------------------------------------------------------------
+
+This is rather simple address space viewer for Genesis/Megadrive. It is capable
+of displaying 216 bytes of memory simultaneously in a manner similar to some
+hex editors for the PC, with refresh of 50/60Hz. It was created for hardware
+research purposes.
+
+Here are the key bindings:
+  A + up, A + down    - scroll one line up/down.
+  A + left, A + right - scroll one page up/down.
+  B     - toggle between byte/word display/edit mode.
+  C     - edit highlighted value.
+  Start - enter menu.
+
+
+hexed is released under the BSD license (see included source code for details).
-- 
2.39.2