Initial Checkin

.gitignore

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+*.lst
+*.map
+*.o
+*.rom
+*.jar

COPYING

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+The MIT License
+
+Copyright (c) 2014 Seth J. Morabito <web@loomcom.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+
+

Makefile

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+CA=ca65
+LD=ld65
+
+all: monitor
+
+monitor: monitor.o
+	$(LD) -C symon.config -vm -m monitor.map -o monitor.rom monitor.o
+
+monitor.o:
+	$(CA) --listing -o monitor.o monitor.asm
+
+clean:
+	rm -f *.o *.rom *.map *.lst

README.md

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+# Loomcom 6502 ROM Monitor
+
+**Version:** 0.1-alpha  
+**Last Updated:** July 1, 2014
+
+## 1.0 About
+
+This project contains an experimental 6502 ROM monitor being developed
+for the [Symon 6502 Simulator] (http://github.com/sethm/symon) and
+associated hardware.
+
+## 2.0 Assembly
+
+Assembled with [CA65] (http://www.cc65.org/doc/ca65.html). Just
+type `make`!
+
+## 3.0 License
+
+This project is free software. It is distributed under the MIT
+License. Please see the file 'COPYING' for full details of the
+license.

monitor.asm

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+;;
+;; Retrochallenge Summer 2014
+;; 6502 ROM Monitor
+;;
+
+
+;;************************************************************************
+;; Non-monitor code, e.g. BASIC, utilities, etc., resides
+;; in the bottom 14KB of ROM
+;;************************************************************************
+.segment	"CODE"
+		.org 	$C000
+
+;;************************************************************************
+;; ROM monitor code resides in the top 2KB of ROM
+;;************************************************************************
+.segment	"MONITOR"
+		.org	$FB00
+
+START:		LDA	#$00	; Set zero flag
+		BEQ	*	; Loop forever
+
+;;************************************************************************
+;;
+;;************************************************************************
+.segment	"VECTORS"
+		.org	$FFFA
+
+		.word	START
+		.word	START
+		.word	START

symon.config

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+MEMORY {
+RAM1: start = $0000, size = $8000;
+ROM1: start = $C000, size = $3B00, fill = yes;
+MONITOR: start = $FB00, size = $4FA, fill = yes;
+ROMV: start = $FFFA, size = $6, file = %O, fill = yes;
+}
+
+SEGMENTS {
+CODE:     load = ROM1, type = ro;
+DATA:     load = ROM1, type = ro;
+MONITOR:  load = MONITOR, type = ro;
+VECTORS:  load = ROMV, type = ro;
+}
+
+SYMBOLS {
+__STACKSIZE__ = $0300;
+}
+