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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 934:3acd3b3ee6d1
prev931:430048ea8b71
next939:6f2302afeb89
author nkeynes
date Fri Dec 26 14:25:23 2008 +0000 (13 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.
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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
    39 struct mem_region_fn **sh4_address_space = (void *)0x12345432;
    40 char *option_list = "s:o:d:h";
    41 struct option longopts[1] = { { NULL, 0, 0, 0 } };
    43 char *input_file = NULL;
    44 char *diff_file = NULL;
    45 char *output_file = NULL;
    46 gboolean sh4_starting;
    47 uint32_t start_addr = 0x8C010000;
    48 uint32_t sh4_cpu_period = 5;
    49 unsigned char dc_main_ram[4096];
    50 unsigned char dc_boot_rom[4096];
    51 FILE *in;
    53 char *inbuf;
    55 struct x86_symbol local_symbols[] = {
    56     { "sh4r+128", ((char *)&sh4r)+128 },
    57     { "sh4_cpu_period", &sh4_cpu_period },
    58     { "mmu_vma_to_phys_read", mmu_vma_to_phys_read },
    59     { "mmu_vma_to_phys_write", mmu_vma_to_phys_write },
    60     { "sh4_address_space", 0x12345432 },
    61     { "sh4_write_fpscr", sh4_write_fpscr },
    62     { "sh4_write_sr", sh4_write_sr },
    63     { "sh4_read_sr", sh4_read_sr },
    64     { "sh4_sleep", sh4_sleep },
    65     { "sh4_fsca", sh4_fsca },
    66     { "sh4_ftrv", sh4_ftrv },
    67     { "sh4_switch_fr_banks", sh4_switch_fr_banks },
    68     { "sh4_execute_instruction", sh4_execute_instruction },
    69     { "signsat48", signsat48 },
    70     { "sh4_read_byte", sh4_read_byte },
    71     { "sh4_read_word", sh4_read_word },
    72     { "sh4_read_long", sh4_read_long },
    73     { "sh4_write_byte", sh4_write_byte },
    74     { "sh4_write_word", sh4_write_word },
    75     { "sh4_write_long", sh4_write_long },
    76     { "xlat_get_code_by_vma", xlat_get_code_by_vma },
    77     { "xlat_get_code", xlat_get_code }
    78 };
    80 int32_t FASTCALL sh4_read_byte( uint32_t addr ) 
    81 {
    82     return *(uint8_t *)(inbuf+(addr-start_addr));
    83 }
    84 int32_t FASTCALL sh4_read_word( uint32_t addr ) 
    85 {
    86     return *(uint16_t *)(inbuf+(addr-start_addr));
    87 }
    88 int32_t FASTCALL sh4_read_long( uint32_t addr ) 
    89 {
    90     return *(uint32_t *)(inbuf+(addr-start_addr));
    91 }
    93 // Stubs
    94 gboolean sh4_execute_instruction( ) { return TRUE; }
    95 void sh4_accept_interrupt() {}
    96 void sh4_set_breakpoint( uint32_t pc, breakpoint_type_t type ) { }
    97 gboolean sh4_clear_breakpoint( uint32_t pc, breakpoint_type_t type ) { return TRUE; }
    98 gboolean dreamcast_is_running() { return FALSE; }
    99 int sh4_get_breakpoint( uint32_t pc ) { return 0; }
   100 void sh4_core_exit( int exit_code ){}
   101 void sh4_flush_icache(){}
   102 void event_execute() {}
   103 void TMU_run_slice( uint32_t nanos ) {}
   104 void CCN_set_cache_control( uint32_t val ) { }
   105 void PMM_write_control( int ctr, uint32_t val ) { }
   106 void SCIF_run_slice( uint32_t nanos ) {}
   107 void FASTCALL sh4_write_byte( uint32_t addr, uint32_t val ) {}
   108 void FASTCALL sh4_write_word( uint32_t addr, uint32_t val ) {}
   109 void FASTCALL sh4_write_long( uint32_t addr, uint32_t val ) {}
   110 void FASTCALL sh4_write_fpscr( uint32_t val ) { }
   111 void FASTCALL sh4_write_sr( uint32_t val ) { }
   112 uint32_t FASTCALL sh4_read_sr( void ) { return 0; }
   113 void FASTCALL sh4_sleep() { }
   114 void FASTCALL sh4_fsca( uint32_t angle, float *fr ) { }
   115 void FASTCALL sh4_ftrv( float *fv ) { }
   116 void FASTCALL signsat48(void) { }
   117 void sh4_switch_fr_banks() { }
   118 void mem_copy_to_sh4( sh4addr_t addr, sh4ptr_t src, size_t size ) { }
   119 gboolean sh4_has_page( sh4vma_t vma ) { return TRUE; }
   120 void syscall_invoke( uint32_t val ) { }
   121 void dreamcast_stop() {} 
   122 void dreamcast_reset() {}
   123 gboolean FASTCALL sh4_raise_reset( int exc ) { return TRUE; }
   124 gboolean FASTCALL sh4_raise_exception( int exc ) { return TRUE; }
   125 gboolean FASTCALL sh4_raise_tlb_exception( int exc ) { return TRUE; }
   126 gboolean FASTCALL sh4_raise_trap( int exc ) { return TRUE; }
   127 uint32_t sh4_sleep_run_slice(uint32_t nanosecs) { return nanosecs; }
   128 gboolean gui_error_dialog( const char *fmt, ... ) { return TRUE; }
   129 struct sh4_icache_struct sh4_icache;
   130 struct mem_region_fn mem_region_unmapped;
   132 void usage()
   133 {
   134     fprintf( stderr, "Usage: testsh4x86 [options] <input bin file>\n");
   135     fprintf( stderr, "Options:\n");
   136     fprintf( stderr, "  -d <filename>  Diff results against contents of file\n" );
   137     fprintf( stderr, "  -h             Display this help message\n" );
   138     fprintf( stderr, "  -o <filename>  Output disassembly to file [stdout]\n" );
   139     fprintf( stderr, "  -s <addr>      Specify start address of binary [8C010000]\n" );
   140 }
   142 void emit( void *ptr, int level, const gchar *source, const char *msg, ... )
   143 {
   144     va_list ap;
   145     va_start( ap, msg );
   146     vfprintf( stderr, msg, ap );
   147     fprintf( stderr, "\n" );
   148     va_end(ap);
   149 }
   152 struct sh4_registers sh4r;
   155 int main( int argc, char *argv[] )
   156 {
   157     struct stat st;
   158     int opt;
   159     while( (opt = getopt_long( argc, argv, option_list, longopts, NULL )) != -1 ) {
   160 	switch( opt ) {
   161 	case 'd':
   162 	    diff_file = optarg;
   163 	    break;
   164 	case 'o':
   165 	    output_file = optarg;
   166 	    break;
   167 	case 's':
   168 	    start_addr = strtoul(optarg, NULL, 0);
   169 	    break;
   170 	case 'h':
   171 	    usage();
   172 	    exit(0);
   173 	}
   174     }
   175     if( optind < argc ) {
   176 	input_file = argv[optind++];
   177     } else {
   178 	usage();
   179 	exit(1);
   180     }
   182     mmio_region_MMU.mem = malloc(4096);
   183     memset( mmio_region_MMU.mem, 0, 4096 );
   185     ((uint32_t *)mmio_region_MMU.mem)[4] = 1;
   187     in = fopen( input_file, "ro" );
   188     if( in == NULL ) {
   189 	perror( "Unable to open input file" );
   190 	exit(2);
   191     }
   192     fstat( fileno(in), &st );
   193     inbuf = malloc( st.st_size );
   194     fread( inbuf, st.st_size, 1, in );
   195     sh4_icache.mask = 0xFFFFF000;
   196     sh4_icache.page_vma = start_addr & 0xFFFFF000;
   197     sh4_icache.page = (unsigned char *)(inbuf - (sh4_icache.page_vma&0xFFF));
   198     sh4_icache.page_ppa = start_addr & 0xFFFFF000;
   200     xlat_cache_init();
   201     uintptr_t pc;
   202     uint8_t *buf = sh4_translate_basic_block( start_addr );
   203     uint32_t buflen = xlat_get_code_size(buf);
   204     x86_disasm_init( (uintptr_t)buf, (uintptr_t)buf, buflen );
   205     x86_set_symtab( local_symbols, sizeof(local_symbols)/sizeof(struct x86_symbol) );
   206     for( pc = buf; pc < buf + buflen;  ) {
   207 	char buf[256];
   208 	char op[256];
   209 	uintptr_t pc2 = x86_disasm_instruction( pc, buf, sizeof(buf), op );
   210 	fprintf( stdout, "%08x: %s\n", pc, buf );
   211 	pc = pc2;
   212     }
   213     return 0;
   214 }
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