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lxdream.org :: lxdream/src/test/testsh4x86.c
lxdream 0.9.1
released Jun 29
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filename src/test/testsh4x86.c
changeset 820:de3af5480989
prev802:d894188b503d
next884:2dcd6a3829fa
author nkeynes
date Tue Aug 19 23:39:14 2008 +0000 (11 years ago)
permissions -rw-r--r--
last change Fix testsh4x86 again
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     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 dreamcast_module sh4_module;
    31 struct mmio_region mmio_region_MMU;
    32 struct mmio_region mmio_region_PMM;
    33 struct breakpoint_struct sh4_breakpoints[MAX_BREAKPOINTS];
    34 int sh4_breakpoint_count = 0;
    36 #define MAX_INS_SIZE 32
    38 char *option_list = "s:o:d:h";
    39 struct option longopts[1] = { { NULL, 0, 0, 0 } };
    41 char *input_file = NULL;
    42 char *diff_file = NULL;
    43 char *output_file = NULL;
    44 gboolean sh4_starting;
    45 uint32_t start_addr = 0x8C010000;
    46 uint32_t sh4_cpu_period = 5;
    47 sh4ptr_t sh4_main_ram;
    48 FILE *in;
    50 char *inbuf;
    52 struct x86_symbol local_symbols[] = {
    53     { "_sh4_read_byte", sh4_read_byte },
    54     { "_sh4_read_word", sh4_read_word },
    55     { "_sh4_read_long", sh4_read_long },
    56     { "_sh4_write_byte", sh4_write_byte },
    57     { "_sh4_write_word", sh4_write_word },
    58     { "_sh4_write_long", sh4_write_long }
    59 };
    61 int32_t sh4_read_byte( uint32_t addr ) 
    62 {
    63     return *(uint8_t *)(inbuf+(addr-start_addr));
    64 }
    65 int32_t sh4_read_word( uint32_t addr ) 
    66 {
    67     return *(uint16_t *)(inbuf+(addr-start_addr));
    68 }
    69 int32_t sh4_read_long( uint32_t addr ) 
    70 {
    71     return *(uint32_t *)(inbuf+(addr-start_addr));
    72 }
    73 // Stubs
    74 gboolean sh4_execute_instruction( ) { return TRUE; }
    75 void sh4_accept_interrupt() {}
    76 void sh4_set_breakpoint( uint32_t pc, breakpoint_type_t type ) { }
    77 gboolean sh4_clear_breakpoint( uint32_t pc, breakpoint_type_t type ) { return TRUE; }
    78 gboolean dreamcast_is_running() { return FALSE; }
    79 int sh4_get_breakpoint( uint32_t pc ) { return 0; }
    80 void sh4_core_exit( int exit_code ){}
    81 void sh4_flush_icache(){}
    82 void event_execute() {}
    83 void TMU_run_slice( uint32_t nanos ) {}
    84 void SCIF_run_slice( uint32_t nanos ) {}
    85 void sh4_write_byte( uint32_t addr, uint32_t val ) {}
    86 void sh4_write_word( uint32_t addr, uint32_t val ) {}
    87 void sh4_write_long( uint32_t addr, uint32_t val ) {}
    88 void sh4_write_fpscr( uint32_t val ) { }
    89 void sh4_switch_fr_banks() { }
    90 void mem_copy_to_sh4( sh4addr_t addr, sh4ptr_t src, size_t size ) { }
    91 void sh4_write_sr( uint32_t val ) { }
    92 gboolean sh4_has_page( sh4vma_t vma ) { return TRUE; }
    93 void syscall_invoke( uint32_t val ) { }
    94 void dreamcast_stop() {} 
    95 void dreamcast_reset() {}
    96 uint32_t sh4_read_sr( void ) { return 0; }
    97 gboolean sh4_raise_reset( int exc ) { return TRUE; }
    98 gboolean sh4_raise_exception( int exc ) { return TRUE; }
    99 gboolean sh4_raise_tlb_exception( int exc ) { return TRUE; }
   100 gboolean sh4_raise_trap( int exc ) { return TRUE; }
   101 void sh4_sleep() { }
   102 uint32_t sh4_sleep_run_slice(uint32_t nanosecs) { return nanosecs; }
   103 void sh4_fsca( uint32_t angle, float *fr ) { }
   104 void sh4_ftrv( float *fv ) { }
   105 void signsat48(void) { }
   106 gboolean gui_error_dialog( const char *fmt, ... ) { return TRUE; }
   107 struct sh4_icache_struct sh4_icache;
   109 void usage()
   110 {
   111     fprintf( stderr, "Usage: testsh4x86 [options] <input bin file>\n");
   112     fprintf( stderr, "Options:\n");
   113     fprintf( stderr, "  -d <filename>  Diff results against contents of file\n" );
   114     fprintf( stderr, "  -h             Display this help message\n" );
   115     fprintf( stderr, "  -o <filename>  Output disassembly to file [stdout]\n" );
   116     fprintf( stderr, "  -s <addr>      Specify start address of binary [8C010000]\n" );
   117 }
   119 void emit( void *ptr, int level, const gchar *source, const char *msg, ... )
   120 {
   121     va_list ap;
   122     va_start( ap, msg );
   123     vfprintf( stderr, msg, ap );
   124     fprintf( stderr, "\n" );
   125     va_end(ap);
   126 }
   129 struct sh4_registers sh4r;
   132 int main( int argc, char *argv[] )
   133 {
   134     struct stat st;
   135     int opt;
   136     while( (opt = getopt_long( argc, argv, option_list, longopts, NULL )) != -1 ) {
   137 	switch( opt ) {
   138 	case 'd':
   139 	    diff_file = optarg;
   140 	    break;
   141 	case 'o':
   142 	    output_file = optarg;
   143 	    break;
   144 	case 's':
   145 	    start_addr = strtoul(optarg, NULL, 0);
   146 	    break;
   147 	case 'h':
   148 	    usage();
   149 	    exit(0);
   150 	}
   151     }
   152     if( optind < argc ) {
   153 	input_file = argv[optind++];
   154     } else {
   155 	usage();
   156 	exit(1);
   157     }
   159     in = fopen( input_file, "ro" );
   160     if( in == NULL ) {
   161 	perror( "Unable to open input file" );
   162 	exit(2);
   163     }
   164     fstat( fileno(in), &st );
   165     inbuf = malloc( st.st_size );
   166     fread( inbuf, st.st_size, 1, in );
   168     xlat_cache_init();
   169     uint32_t pc;
   170     uint8_t *buf = sh4_translate_basic_block( start_addr );
   171     uint32_t buflen = xlat_get_block_size(buf);
   172     x86_disasm_init( buf, 0x8c010000, buflen );
   173     x86_set_symtab( local_symbols, 6 );
   174     for( pc = 0x8c010000; pc < 0x8c010000 + buflen;  ) {
   175 	char buf[256];
   176 	char op[256];
   177 	uint32_t pc2 = x86_disasm_instruction( pc, buf, sizeof(buf), op );
   178 	fprintf( stdout, "%08X: %-20s %s\n", pc, op, buf );
   179 	pc = pc2;
   180     }
   181     return 0;
   182 }
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