Search
lxdream.org :: lxdream/src/test/testsh4x86.c
lxdream 0.9.1
released Jun 29
Download Now
filename src/test/testsh4x86.c
changeset 934:3acd3b3ee6d1
prev931:430048ea8b71
next939:6f2302afeb89
author nkeynes
date Fri Dec 26 14:25:23 2008 +0000 (10 years ago)
branchlxdream-mem
permissions -rw-r--r--
last change Change RAM regions to use static arrays rather than mmap regions, for a 2-3% performance gain.
General mem cleanups, including some save state fixes that break states again.
file annotate diff log raw
nkeynes@363
     1
/**
nkeynes@586
     2
 * $Id$
nkeynes@363
     3
 *
nkeynes@363
     4
 * Test cases for the SH4 => x86 translator core. Takes as
nkeynes@363
     5
 * input a binary SH4 object (and VMA), generates the
nkeynes@363
     6
 * corresponding x86 code, and outputs the disassembly.
nkeynes@363
     7
 *
nkeynes@363
     8
 * Copyright (c) 2005 Nathan Keynes.
nkeynes@363
     9
 *
nkeynes@363
    10
 * This program is free software; you can redistribute it and/or modify
nkeynes@363
    11
 * it under the terms of the GNU General Public License as published by
nkeynes@363
    12
 * the Free Software Foundation; either version 2 of the License, or
nkeynes@363
    13
 * (at your option) any later version.
nkeynes@363
    14
 *
nkeynes@363
    15
 * This program is distributed in the hope that it will be useful,
nkeynes@363
    16
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
nkeynes@363
    17
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
nkeynes@363
    18
 * GNU General Public License for more details.
nkeynes@363
    19
 */
nkeynes@363
    20
nkeynes@363
    21
#include <stdio.h>
nkeynes@363
    22
#include <stdarg.h>
nkeynes@363
    23
#include <getopt.h>
nkeynes@365
    24
#include <sys/stat.h>
nkeynes@365
    25
#include "x86dasm/x86dasm.h"
nkeynes@363
    26
#include "sh4/sh4trans.h"
nkeynes@363
    27
#include "sh4/sh4core.h"
nkeynes@586
    28
#include "sh4/sh4mmio.h"
nkeynes@586
    29
nkeynes@820
    30
struct dreamcast_module sh4_module;
nkeynes@586
    31
struct mmio_region mmio_region_MMU;
nkeynes@820
    32
struct mmio_region mmio_region_PMM;
nkeynes@586
    33
struct breakpoint_struct sh4_breakpoints[MAX_BREAKPOINTS];
nkeynes@586
    34
int sh4_breakpoint_count = 0;
nkeynes@363
    35
nkeynes@363
    36
#define MAX_INS_SIZE 32
nkeynes@363
    37
nkeynes@930
    38
nkeynes@930
    39
struct mem_region_fn **sh4_address_space = (void *)0x12345432;
nkeynes@363
    40
char *option_list = "s:o:d:h";
nkeynes@363
    41
struct option longopts[1] = { { NULL, 0, 0, 0 } };
nkeynes@363
    42
nkeynes@363
    43
char *input_file = NULL;
nkeynes@363
    44
char *diff_file = NULL;
nkeynes@363
    45
char *output_file = NULL;
nkeynes@602
    46
gboolean sh4_starting;
nkeynes@363
    47
uint32_t start_addr = 0x8C010000;
nkeynes@365
    48
uint32_t sh4_cpu_period = 5;
nkeynes@934
    49
unsigned char dc_main_ram[4096];
nkeynes@934
    50
unsigned char dc_boot_rom[4096];
nkeynes@363
    51
FILE *in;
nkeynes@363
    52
nkeynes@363
    53
char *inbuf;
nkeynes@365
    54
nkeynes@365
    55
struct x86_symbol local_symbols[] = {
nkeynes@919
    56
    { "sh4r+128", ((char *)&sh4r)+128 },
nkeynes@919
    57
    { "sh4_cpu_period", &sh4_cpu_period },
nkeynes@919
    58
    { "mmu_vma_to_phys_read", mmu_vma_to_phys_read },
nkeynes@919
    59
    { "mmu_vma_to_phys_write", mmu_vma_to_phys_write },
nkeynes@930
    60
    { "sh4_address_space", 0x12345432 },
nkeynes@919
    61
    { "sh4_write_fpscr", sh4_write_fpscr },
nkeynes@919
    62
    { "sh4_write_sr", sh4_write_sr },
nkeynes@919
    63
    { "sh4_read_sr", sh4_read_sr },
nkeynes@919
    64
    { "sh4_sleep", sh4_sleep },
nkeynes@919
    65
    { "sh4_fsca", sh4_fsca },
nkeynes@919
    66
    { "sh4_ftrv", sh4_ftrv },
nkeynes@919
    67
    { "sh4_switch_fr_banks", sh4_switch_fr_banks },
nkeynes@919
    68
    { "sh4_execute_instruction", sh4_execute_instruction },
nkeynes@919
    69
    { "signsat48", signsat48 },
nkeynes@919
    70
    { "sh4_read_byte", sh4_read_byte },
nkeynes@919
    71
    { "sh4_read_word", sh4_read_word },
nkeynes@919
    72
    { "sh4_read_long", sh4_read_long },
nkeynes@919
    73
    { "sh4_write_byte", sh4_write_byte },
nkeynes@919
    74
    { "sh4_write_word", sh4_write_word },
nkeynes@919
    75
    { "sh4_write_long", sh4_write_long },
nkeynes@919
    76
    { "xlat_get_code_by_vma", xlat_get_code_by_vma },
nkeynes@919
    77
    { "xlat_get_code", xlat_get_code }
nkeynes@365
    78
};
nkeynes@363
    79
nkeynes@905
    80
int32_t FASTCALL sh4_read_byte( uint32_t addr ) 
nkeynes@363
    81
{
nkeynes@363
    82
    return *(uint8_t *)(inbuf+(addr-start_addr));
nkeynes@363
    83
}
nkeynes@905
    84
int32_t FASTCALL sh4_read_word( uint32_t addr ) 
nkeynes@363
    85
{
nkeynes@363
    86
    return *(uint16_t *)(inbuf+(addr-start_addr));
nkeynes@363
    87
}
nkeynes@905
    88
int32_t FASTCALL sh4_read_long( uint32_t addr ) 
nkeynes@363
    89
{
nkeynes@363
    90
    return *(uint32_t *)(inbuf+(addr-start_addr));
nkeynes@363
    91
}
nkeynes@929
    92
nkeynes@363
    93
// Stubs
nkeynes@802
    94
gboolean sh4_execute_instruction( ) { return TRUE; }
nkeynes@363
    95
void sh4_accept_interrupt() {}
nkeynes@586
    96
void sh4_set_breakpoint( uint32_t pc, breakpoint_type_t type ) { }
nkeynes@802
    97
gboolean sh4_clear_breakpoint( uint32_t pc, breakpoint_type_t type ) { return TRUE; }
nkeynes@775
    98
gboolean dreamcast_is_running() { return FALSE; }
nkeynes@802
    99
int sh4_get_breakpoint( uint32_t pc ) { return 0; }
nkeynes@740
   100
void sh4_core_exit( int exit_code ){}
nkeynes@740
   101
void sh4_flush_icache(){}
nkeynes@363
   102
void event_execute() {}
nkeynes@363
   103
void TMU_run_slice( uint32_t nanos ) {}
nkeynes@931
   104
void CCN_set_cache_control( uint32_t val ) { }
nkeynes@884
   105
void PMM_write_control( int ctr, uint32_t val ) { }
nkeynes@363
   106
void SCIF_run_slice( uint32_t nanos ) {}
nkeynes@905
   107
void FASTCALL sh4_write_byte( uint32_t addr, uint32_t val ) {}
nkeynes@905
   108
void FASTCALL sh4_write_word( uint32_t addr, uint32_t val ) {}
nkeynes@905
   109
void FASTCALL sh4_write_long( uint32_t addr, uint32_t val ) {}
nkeynes@905
   110
void FASTCALL sh4_write_fpscr( uint32_t val ) { }
nkeynes@905
   111
void FASTCALL sh4_write_sr( uint32_t val ) { }
nkeynes@905
   112
uint32_t FASTCALL sh4_read_sr( void ) { return 0; }
nkeynes@905
   113
void FASTCALL sh4_sleep() { }
nkeynes@905
   114
void FASTCALL sh4_fsca( uint32_t angle, float *fr ) { }
nkeynes@905
   115
void FASTCALL sh4_ftrv( float *fv ) { }
nkeynes@905
   116
void FASTCALL signsat48(void) { }
nkeynes@669
   117
void sh4_switch_fr_banks() { }
nkeynes@918
   118
void mem_copy_to_sh4( sh4addr_t addr, sh4ptr_t src, size_t size ) { }
nkeynes@602
   119
gboolean sh4_has_page( sh4vma_t vma ) { return TRUE; }
nkeynes@385
   120
void syscall_invoke( uint32_t val ) { }
nkeynes@586
   121
void dreamcast_stop() {} 
nkeynes@586
   122
void dreamcast_reset() {}
nkeynes@905
   123
gboolean FASTCALL sh4_raise_reset( int exc ) { return TRUE; }
nkeynes@905
   124
gboolean FASTCALL sh4_raise_exception( int exc ) { return TRUE; }
nkeynes@905
   125
gboolean FASTCALL sh4_raise_tlb_exception( int exc ) { return TRUE; }
nkeynes@905
   126
gboolean FASTCALL sh4_raise_trap( int exc ) { return TRUE; }
nkeynes@802
   127
uint32_t sh4_sleep_run_slice(uint32_t nanosecs) { return nanosecs; }
nkeynes@802
   128
gboolean gui_error_dialog( const char *fmt, ... ) { return TRUE; }
nkeynes@586
   129
struct sh4_icache_struct sh4_icache;
nkeynes@930
   130
struct mem_region_fn mem_region_unmapped;
nkeynes@363
   131
nkeynes@363
   132
void usage()
nkeynes@363
   133
{
nkeynes@363
   134
    fprintf( stderr, "Usage: testsh4x86 [options] <input bin file>\n");
nkeynes@363
   135
    fprintf( stderr, "Options:\n");
nkeynes@363
   136
    fprintf( stderr, "  -d <filename>  Diff results against contents of file\n" );
nkeynes@363
   137
    fprintf( stderr, "  -h             Display this help message\n" );
nkeynes@363
   138
    fprintf( stderr, "  -o <filename>  Output disassembly to file [stdout]\n" );
nkeynes@363
   139
    fprintf( stderr, "  -s <addr>      Specify start address of binary [8C010000]\n" );
nkeynes@363
   140
}
nkeynes@363
   141
nkeynes@363
   142
void emit( void *ptr, int level, const gchar *source, const char *msg, ... )
nkeynes@363
   143
{
nkeynes@363
   144
    va_list ap;
nkeynes@363
   145
    va_start( ap, msg );
nkeynes@363
   146
    vfprintf( stderr, msg, ap );
nkeynes@363
   147
    fprintf( stderr, "\n" );
nkeynes@363
   148
    va_end(ap);
nkeynes@363
   149
}
nkeynes@363
   150
nkeynes@363
   151
nkeynes@363
   152
struct sh4_registers sh4r;
nkeynes@363
   153
nkeynes@363
   154
nkeynes@363
   155
int main( int argc, char *argv[] )
nkeynes@363
   156
{
nkeynes@363
   157
    struct stat st;
nkeynes@363
   158
    int opt;
nkeynes@363
   159
    while( (opt = getopt_long( argc, argv, option_list, longopts, NULL )) != -1 ) {
nkeynes@363
   160
	switch( opt ) {
nkeynes@363
   161
	case 'd':
nkeynes@363
   162
	    diff_file = optarg;
nkeynes@363
   163
	    break;
nkeynes@363
   164
	case 'o':
nkeynes@363
   165
	    output_file = optarg;
nkeynes@363
   166
	    break;
nkeynes@363
   167
	case 's':
nkeynes@363
   168
	    start_addr = strtoul(optarg, NULL, 0);
nkeynes@363
   169
	    break;
nkeynes@363
   170
	case 'h':
nkeynes@363
   171
	    usage();
nkeynes@363
   172
	    exit(0);
nkeynes@363
   173
	}
nkeynes@363
   174
    }
nkeynes@363
   175
    if( optind < argc ) {
nkeynes@363
   176
	input_file = argv[optind++];
nkeynes@363
   177
    } else {
nkeynes@363
   178
	usage();
nkeynes@363
   179
	exit(1);
nkeynes@363
   180
    }
nkeynes@363
   181
nkeynes@919
   182
    mmio_region_MMU.mem = malloc(4096);
nkeynes@919
   183
    memset( mmio_region_MMU.mem, 0, 4096 );
nkeynes@919
   184
nkeynes@929
   185
    ((uint32_t *)mmio_region_MMU.mem)[4] = 1;
nkeynes@929
   186
nkeynes@363
   187
    in = fopen( input_file, "ro" );
nkeynes@363
   188
    if( in == NULL ) {
nkeynes@363
   189
	perror( "Unable to open input file" );
nkeynes@363
   190
	exit(2);
nkeynes@363
   191
    }
nkeynes@363
   192
    fstat( fileno(in), &st );
nkeynes@363
   193
    inbuf = malloc( st.st_size );
nkeynes@363
   194
    fread( inbuf, st.st_size, 1, in );
nkeynes@919
   195
    sh4_icache.mask = 0xFFFFF000;
nkeynes@919
   196
    sh4_icache.page_vma = start_addr & 0xFFFFF000;
nkeynes@919
   197
    sh4_icache.page = (unsigned char *)(inbuf - (sh4_icache.page_vma&0xFFF));
nkeynes@919
   198
    sh4_icache.page_ppa = start_addr & 0xFFFFF000;
nkeynes@363
   199
nkeynes@365
   200
    xlat_cache_init();
nkeynes@925
   201
    uintptr_t pc;
nkeynes@365
   202
    uint8_t *buf = sh4_translate_basic_block( start_addr );
nkeynes@919
   203
    uint32_t buflen = xlat_get_code_size(buf);
nkeynes@934
   204
    x86_disasm_init( (uintptr_t)buf, (uintptr_t)buf, buflen );
nkeynes@919
   205
    x86_set_symtab( local_symbols, sizeof(local_symbols)/sizeof(struct x86_symbol) );
nkeynes@925
   206
    for( pc = buf; pc < buf + buflen;  ) {
nkeynes@363
   207
	char buf[256];
nkeynes@363
   208
	char op[256];
nkeynes@925
   209
	uintptr_t pc2 = x86_disasm_instruction( pc, buf, sizeof(buf), op );
nkeynes@929
   210
	fprintf( stdout, "%08x: %s\n", pc, buf );
nkeynes@363
   211
	pc = pc2;
nkeynes@363
   212
    }
nkeynes@802
   213
    return 0;
nkeynes@363
   214
}
.