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.
8 * Copyright (c) 2005 Nathan Keynes.
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.
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.
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;
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 }
61 int32_t sh4_read_byte( uint32_t addr )
63 return *(uint8_t *)(inbuf+(addr-start_addr));
65 int32_t sh4_read_word( uint32_t addr )
67 return *(uint16_t *)(inbuf+(addr-start_addr));
69 int32_t sh4_read_long( uint32_t addr )
71 return *(uint32_t *)(inbuf+(addr-start_addr));
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; }
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;
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" );
119 void emit( void *ptr, int level, const gchar *source, const char *msg, ... )
123 vfprintf( stderr, msg, ap );
124 fprintf( stderr, "\n" );
129 struct sh4_registers sh4r;
132 int main( int argc, char *argv[] )
136 while( (opt = getopt_long( argc, argv, option_list, longopts, NULL )) != -1 ) {
142 output_file = optarg;
145 start_addr = strtoul(optarg, NULL, 0);
152 if( optind < argc ) {
153 input_file = argv[optind++];
159 in = fopen( input_file, "ro" );
161 perror( "Unable to open input file" );
164 fstat( fileno(in), &st );
165 inbuf = malloc( st.st_size );
166 fread( inbuf, st.st_size, 1, in );
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; ) {
177 uint32_t pc2 = x86_disasm_instruction( pc, buf, sizeof(buf), op );
178 fprintf( stdout, "%08X: %-20s %s\n", pc, op, buf );
.