Search
lxdream.org :: lxdream/src/test/testsh4x86.c
lxdream 0.9.1
released Jun 29
Download Now
filename src/test/testsh4x86.c
changeset 775:b50989a63120
prev740:dd11269ee48b
next802:d894188b503d
author nkeynes
date Mon Jul 28 04:51:04 2008 +0000 (11 years ago)
permissions -rw-r--r--
last change Fix build of testsh4x86
view annotate diff log raw
     1 /**
     2  * $Id$
     3  *
     4  * Test cases for the SH4 => x86 translator core. Takes as
     5  * input a binary SH4 object (and VMA), generates the
     6  * corresponding x86 code, and outputs the disassembly.
     7  *
     8  * Copyright (c) 2005 Nathan Keynes.
     9  *
    10  * This program is free software; you can redistribute it and/or modify
    11  * it under the terms of the GNU General Public License as published by
    12  * the Free Software Foundation; either version 2 of the License, or
    13  * (at your option) any later version.
    14  *
    15  * This program is distributed in the hope that it will be useful,
    16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    18  * GNU General Public License for more details.
    19  */
    21 #include <stdio.h>
    22 #include <stdarg.h>
    23 #include <getopt.h>
    24 #include <sys/stat.h>
    25 #include "x86dasm/x86dasm.h"
    26 #include "sh4/sh4trans.h"
    27 #include "sh4/sh4core.h"
    28 #include "sh4/sh4mmio.h"
    30 struct mmio_region mmio_region_MMU;
    31 struct breakpoint_struct sh4_breakpoints[MAX_BREAKPOINTS];
    32 int sh4_breakpoint_count = 0;
    34 #define MAX_INS_SIZE 32
    36 char *option_list = "s:o:d:h";
    37 struct option longopts[1] = { { NULL, 0, 0, 0 } };
    39 char *input_file = NULL;
    40 char *diff_file = NULL;
    41 char *output_file = NULL;
    42 gboolean sh4_starting;
    43 uint32_t start_addr = 0x8C010000;
    44 uint32_t sh4_cpu_period = 5;
    45 sh4ptr_t sh4_main_ram;
    46 FILE *in;
    48 char *inbuf;
    50 struct x86_symbol local_symbols[] = {
    51     { "_sh4_read_byte", sh4_read_byte },
    52     { "_sh4_read_word", sh4_read_word },
    53     { "_sh4_read_long", sh4_read_long },
    54     { "_sh4_write_byte", sh4_write_byte },
    55     { "_sh4_write_word", sh4_write_word },
    56     { "_sh4_write_long", sh4_write_long }
    57 };
    59 int32_t sh4_read_byte( uint32_t addr ) 
    60 {
    61     return *(uint8_t *)(inbuf+(addr-start_addr));
    62 }
    63 int32_t sh4_read_word( uint32_t addr ) 
    64 {
    65     return *(uint16_t *)(inbuf+(addr-start_addr));
    66 }
    67 int32_t sh4_read_long( uint32_t addr ) 
    68 {
    69     return *(uint32_t *)(inbuf+(addr-start_addr));
    70 }
    71 // Stubs
    72 gboolean sh4_execute_instruction( ) { }
    73 void sh4_accept_interrupt() {}
    74 void sh4_set_breakpoint( uint32_t pc, breakpoint_type_t type ) { }
    75 gboolean sh4_clear_breakpoint( uint32_t pc, breakpoint_type_t type ) { }
    76 gboolean dreamcast_is_running() { return FALSE; }
    77 int sh4_get_breakpoint( uint32_t pc ) { }
    78 void sh4_core_exit( int exit_code ){}
    79 void sh4_flush_icache(){}
    80 void event_execute() {}
    81 void TMU_run_slice( uint32_t nanos ) {}
    82 void SCIF_run_slice( uint32_t nanos ) {}
    83 void sh4_write_byte( uint32_t addr, uint32_t val ) {}
    84 void sh4_write_word( uint32_t addr, uint32_t val ) {}
    85 void sh4_write_long( uint32_t addr, uint32_t val ) {}
    86 void sh4_write_fpscr( uint32_t val ) { }
    87 void sh4_switch_fr_banks() { }
    88 void mem_copy_to_sh4( sh4addr_t addr, sh4ptr_t src, size_t size ) { }
    89 void sh4_write_sr( uint32_t val ) { }
    90 gboolean sh4_has_page( sh4vma_t vma ) { return TRUE; }
    91 void syscall_invoke( uint32_t val ) { }
    92 void dreamcast_stop() {} 
    93 void dreamcast_reset() {}
    94 uint32_t sh4_read_sr( void ) { }
    95 gboolean sh4_raise_reset( int exc ) {}
    96 gboolean sh4_raise_exception( int exc ) {}
    97 gboolean sh4_raise_tlb_exception( int exc ) {}
    98 gboolean sh4_raise_trap( int exc ) {}
    99 void sh4_sleep() { }
   100 uint32_t sh4_sleep_run_slice(uint32_t nanosecs) { }
   101 void sh4_fsca( uint32_t angle, float *fr ) { }
   102 void sh4_ftrv( float *fv ) { }
   103 void signsat48(void) { }
   104 gboolean gui_error_dialog( const char *fmt, ... ) { }
   105 struct sh4_icache_struct sh4_icache;
   107 void usage()
   108 {
   109     fprintf( stderr, "Usage: testsh4x86 [options] <input bin file>\n");
   110     fprintf( stderr, "Options:\n");
   111     fprintf( stderr, "  -d <filename>  Diff results against contents of file\n" );
   112     fprintf( stderr, "  -h             Display this help message\n" );
   113     fprintf( stderr, "  -o <filename>  Output disassembly to file [stdout]\n" );
   114     fprintf( stderr, "  -s <addr>      Specify start address of binary [8C010000]\n" );
   115 }
   117 void emit( void *ptr, int level, const gchar *source, const char *msg, ... )
   118 {
   119     va_list ap;
   120     va_start( ap, msg );
   121     vfprintf( stderr, msg, ap );
   122     fprintf( stderr, "\n" );
   123     va_end(ap);
   124 }
   127 struct sh4_registers sh4r;
   130 int main( int argc, char *argv[] )
   131 {
   132     struct stat st;
   133     int opt;
   134     while( (opt = getopt_long( argc, argv, option_list, longopts, NULL )) != -1 ) {
   135 	switch( opt ) {
   136 	case 'd':
   137 	    diff_file = optarg;
   138 	    break;
   139 	case 'o':
   140 	    output_file = optarg;
   141 	    break;
   142 	case 's':
   143 	    start_addr = strtoul(optarg, NULL, 0);
   144 	    break;
   145 	case 'h':
   146 	    usage();
   147 	    exit(0);
   148 	}
   149     }
   150     if( optind < argc ) {
   151 	input_file = argv[optind++];
   152     } else {
   153 	usage();
   154 	exit(1);
   155     }
   157     in = fopen( input_file, "ro" );
   158     if( in == NULL ) {
   159 	perror( "Unable to open input file" );
   160 	exit(2);
   161     }
   162     fstat( fileno(in), &st );
   163     inbuf = malloc( st.st_size );
   164     fread( inbuf, st.st_size, 1, in );
   166     xlat_cache_init();
   167     uint32_t pc;
   168     uint8_t *buf = sh4_translate_basic_block( start_addr );
   169     uint32_t buflen = xlat_get_block_size(buf);
   170     x86_disasm_init( buf, 0x8c010000, buflen );
   171     x86_set_symtab( local_symbols, 6 );
   172     for( pc = 0x8c010000; pc < 0x8c010000 + buflen;  ) {
   173 	char buf[256];
   174 	char op[256];
   175 	uint32_t pc2 = x86_disasm_instruction( pc, buf, sizeof(buf), op );
   176 	fprintf( stdout, "%08X: %-20s %s\n", pc, op, buf );
   177 	pc = pc2;
   178     }
   179 }
.