--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lwdisasm/main.c	Mon Aug 02 13:24:07 2010 -0600
@@ -0,0 +1,219 @@
+/*
+main.c
+
+Copyright © 2010 William Astle
+
+This file is part of LWTOOLS.
+
+LWTOOLS is free software: you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation, either version 3 of the License, or (at your option) any later
+version.
+
+This program is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+more details.
+
+You should have received a copy of the GNU General Public License along with
+this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <config.h>
+
+#include <argp.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <lw_alloc.h>
+#include <lw_string.h>
+
+#include "lwdisasm.h"
+
+/* command line option handling */
+const char *argp_program_version = "lwdisasmasm from " PACKAGE_STRING;
+const char *argp_program_bug_address = PACKAGE_BUGREPORT;
+char *program_name;
+
+static struct argp_option options[] =
+{
+	{ "output",		'o',	"FILE",		0,						"Output to FILE"},
+	{ "debug",		'd',	"LEVEL",	OPTION_ARG_OPTIONAL,	"Set debug mode"},
+	{ "format",		'f',	"TYPE",		0,						"Select input format: decb, raw, obj, os9"},
+	{ "decb",		'b',	0,			0,						"Read DECB .bin format input, equivalent of --format=decb"},
+	{ "raw",		'r',	0,			0,						"Read raw binary format input, equivalent of --format=raw"},
+	{ "obj",		0x100,	0,			0,						"Read proprietary object file format, equivalent of --format=obj" },
+	{ "6809",		'9',	0,			0,						"Set disassembler to 6809 only mode" },
+	{ "6309",		'3',	0,			0,						"Set disassembler to 6309 mode (default)" },
+	{ "data",		0x101,	"RANGE",	0,						"Set an address range as data" },
+	{ "code",		0x102,	"RANGE",	0,						"Set an address range as code" },
+	{ "entry",		0x103,	"ADDR",		0,						"Start disassembling at ADDR" },
+	{ "base",		0x104,	"ADDR",		0,						"Set the base address of a raw file" },
+	{ 0 }
+};
+
+
+static error_t parse_opts(int key, char *arg, struct argp_state *state)
+{
+	disasmstate_t *as = state -> input;
+	int rangelow, rangehigh;
+	char *e;
+	
+	switch (key)
+	{
+	
+	case 0x101: // data range
+		rangelow = strtol(arg, &e, 0);
+		if (*e != ':')
+		{
+			fprintf(stderr, "Invalid range: %s\n", arg);
+			exit(1);
+		}
+		rangehigh = strtol(e + 1, NULL, 0);
+		if (rangelow < 0 || rangehigh < 0 || rangehigh < rangelow)
+		{
+			fprintf(stderr, "Invalid range: %s\n", arg);
+			exit(1);
+		}
+		// register the range as data
+		break;
+		
+	case 0x102: // code range
+		rangelow = strtol(arg, &e, 0);
+		if (*e != ':')
+		{
+			fprintf(stderr, "Invalid range: %s\n", arg);
+			exit(1);
+		}
+		rangehigh = strtol(e + 1, NULL, 0);
+		if (rangelow < 0 || rangehigh < 0 || rangehigh < rangelow)
+		{
+			fprintf(stderr, "Invalid range: %s\n", arg);
+			exit(1);
+		}
+		// register the range as code
+		break;
+	
+	case 0x103: // entry
+		as -> entry = strtol(arg, NULL, 0);
+		break;
+		
+	case 0x104: // base
+		as -> base = strtol(arg, NULL, 0);
+		break;
+		
+	case 'o':
+		if (as -> output_file)
+			lw_free(as -> output_file);
+		as -> output_file = lw_strdup(arg);
+		break;
+
+	case 'd':
+		if (!arg)
+			as -> debug_level = 50;
+		else
+			as -> debug_level = atoi(arg);
+		break;
+
+	case 'b':
+		as -> input_type = INPUT_DECB;
+		break;
+
+	case 'r':
+		as -> input_type = INPUT_RAW;
+		break;
+
+	case 0x100:
+		as -> input_type = INPUT_OBJ;
+		break;
+
+	case 'f':
+		if (!strcasecmp(arg, "decb"))
+			as -> input_type = INPUT_DECB;
+		else if (!strcasecmp(arg, "raw"))
+			as -> input_type = INPUT_RAW;
+		else if (!strcasecmp(arg, "obj"))
+			as -> input_type = INPUT_OBJ;
+		else if (!strcasecmp(arg, "os9"))
+			as -> input_type = INPUT_OS9;
+		else
+		{
+			fprintf(stderr, "Invalid input format: %s\n", arg);
+			exit(1);
+		}
+		break;
+		
+	case '9':
+		as -> target = TARGET_6809;
+		break;
+
+	case '3':
+		as -> target = TARGET_6309;
+		break;
+
+	case ARGP_KEY_END:
+		break;
+	
+	case ARGP_KEY_ARG:
+		if (as -> input_file)
+		{
+			fprintf(stderr, "Only one input file allowed\n");
+			exit(1);
+		}
+		as -> input_file = lw_strdup(arg);
+		break;
+		
+	default:
+		return ARGP_ERR_UNKNOWN;
+	}
+	return 0;
+}
+
+static struct argp argp =
+{
+	options,
+	parse_opts,
+	"<input file>",
+	"LWDISASM, a HD6309 and MC6809 disassembler"
+};
+
+/*
+main function; parse command line, set up disassembler state, and run the 
+disassembler on the first file
+*/
+
+int main(int argc, char **argv)
+{
+	disasmstate_t as = { 0 };
+	FILE *fp;
+	
+	/* assembler state */
+	program_name = argv[0];
+
+	/* parse command line arguments */	
+	argp_parse(&argp, argc, argv, 0, 0, &as);
+
+	if (as.input_file == NULL)
+	{
+		fprintf(stderr, "No input files specified.\n");
+		exit(1);
+	}
+	
+	fp = fopen(as.input_file, "rb");
+	if (!fp)
+	{
+		perror("Cannot open input file");
+		exit(1);
+	}
+
+	fseek(fp, 0, SEEK_END);
+	as.filelen = ftell(fp);
+	rewind(fp);
+	
+	as.filedata = lw_alloc(as.filelen);
+	0 == fread(as.filedata, as.filelen, 1, fp);
+
+	fclose(fp);
+
+	exit(0);
+}