/**

  * $Id: testsh4x86.c,v 1.6 2007-11-08 10:49:16 nkeynes Exp $

  *

  * Test cases for the SH4 => x86 translator core. Takes as

  * input a binary SH4 object (and VMA), generates the

  * corresponding x86 code, and outputs the disassembly.

  *

  * Copyright (c) 2005 Nathan Keynes.

  *

  * This program 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 2 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.

  */

 #include <stdio.h>

 #include <stdarg.h>

 #include <getopt.h>

 #include <sys/stat.h>

 #include "x86dasm/x86dasm.h"

 #include "sh4/sh4trans.h"

 #include "sh4/sh4core.h"

 #define MAX_INS_SIZE 32

 char *option_list = "s:o:d:h";

 struct option longopts[1] = { { NULL, 0, 0, 0 } };

 char *input_file = NULL;

 char *diff_file = NULL;

 char *output_file = NULL;

 uint32_t start_addr = 0x8C010000;

 uint32_t sh4_cpu_period = 5;

 FILE *in;

 char *inbuf;

 struct x86_symbol local_symbols[] = {

     { "_sh4_read_byte", sh4_read_byte },

     { "_sh4_read_word", sh4_read_word },

     { "_sh4_read_long", sh4_read_long },

     { "_sh4_write_byte", sh4_write_byte },

     { "_sh4_write_word", sh4_write_word },

     { "_sh4_write_long", sh4_write_long }

 };

 int32_t sh4_read_byte( uint32_t addr ) 

 {

     return *(uint8_t *)(inbuf+(addr-start_addr));

 }

 int32_t sh4_read_word( uint32_t addr ) 

 {

     return *(uint16_t *)(inbuf+(addr-start_addr));

 }

 int32_t sh4_read_long( uint32_t addr ) 

 {

     return *(uint32_t *)(inbuf+(addr-start_addr));

 }

 // Stubs

 gboolean sh4_execute_instruction( ) { }

 void sh4_accept_interrupt() {}

 void sh4_set_breakpoint( uint32_t pc, int type ) { }

 gboolean sh4_clear_breakpoint( uint32_t pc, int type ) { }

 int sh4_get_breakpoint( uint32_t pc ) { }

 void event_execute() {}

 void TMU_run_slice( uint32_t nanos ) {}

 void SCIF_run_slice( uint32_t nanos ) {}

 void MMU_ldtlb(void) {}

 void sh4_write_byte( uint32_t addr, uint32_t val ) {}

 void sh4_write_word( uint32_t addr, uint32_t val ) {}

 void sh4_write_long( uint32_t addr, uint32_t val ) {}

 void sh4_flush_store_queue( uint32_t addr ) {}

 void sh4_write_sr( uint32_t val ) { }

 void syscall_invoke( uint32_t val ) { }

 uint32_t sh4_read_sr( void ) { }

 gboolean sh4_raise_exception( int exc ) {}

 gboolean sh4_raise_trap( int exc ) {}

 void sh4_sleep() { }

 void sh4_fsca( uint32_t angle, float *fr ) { }

 void sh4_ftrv( float *fv, float *xmtrx ) { }

 void signsat48(void) { }

 uint16_t *sh4_icache = NULL;

 uint32_t sh4_icache_addr = 0;

 gboolean gui_error_dialog( const char *fmt, ... ) { }

 void usage()

 {

     fprintf( stderr, "Usage: testsh4x86 [options] <input bin file>\n");

     fprintf( stderr, "Options:\n");

     fprintf( stderr, "  -d <filename>  Diff results against contents of file\n" );

     fprintf( stderr, "  -h             Display this help message\n" );

     fprintf( stderr, "  -o <filename>  Output disassembly to file [stdout]\n" );

     fprintf( stderr, "  -s <addr>      Specify start address of binary [8C010000]\n" );

 }

 void emit( void *ptr, int level, const gchar *source, const char *msg, ... )

 {

     va_list ap;

     va_start( ap, msg );

     vfprintf( stderr, msg, ap );

     fprintf( stderr, "\n" );

     va_end(ap);

 }

 struct sh4_registers sh4r;

 int main( int argc, char *argv[] )

 {

     struct stat st;

     int opt;

     while( (opt = getopt_long( argc, argv, option_list, longopts, NULL )) != -1 ) {

 	switch( opt ) {

 	case 'd':

 	    diff_file = optarg;

 	    break;

 	case 'o':

 	    output_file = optarg;

 	    break;

 	case 's':

 	    start_addr = strtoul(optarg, NULL, 0);

 	    break;

 	case 'h':

 	    usage();

 	    exit(0);

 	}

     }

     if( optind < argc ) {

 	input_file = argv[optind++];

     } else {

 	usage();

 	exit(1);

     }

     in = fopen( input_file, "ro" );

     if( in == NULL ) {

 	perror( "Unable to open input file" );

 	exit(2);

     }

     fstat( fileno(in), &st );

     inbuf = malloc( st.st_size );

     fread( inbuf, st.st_size, 1, in );

     xlat_cache_init();

     uint32_t pc;

     uint8_t *buf = sh4_translate_basic_block( start_addr );

     uint32_t buflen = xlat_get_block_size(buf);

     x86_disasm_init( buf, 0x8c010000, buflen );

     x86_set_symtab( local_symbols, 6 );

     for( pc = 0x8c010000; pc < 0x8c010000 + buflen;  ) {

 	char buf[256];

 	char op[256];

 	uint32_t pc2 = x86_disasm_instruction( pc, buf, sizeof(buf), op );

 	fprintf( stdout, "%08X: %-20s %s\n", pc, op, buf );

 	pc = pc2;

     }

 }