/**

  * $Id$

  *

  * Test cases for the SH4 => x86 translator core. Takes as

  * input a binary SH4 object (and VMA), generates the

  * corresponding x86 code, and outputs the disassembly.

  *

  * Copyright (c) 2005 Nathan Keynes.

  *

  * This program is free software; you can redistribute it and/or modify

  * it under the terms of the GNU General Public License as published by

  * the Free Software Foundation; either version 2 of the License, or

  * (at your option) any later version.

  *

  * This program is distributed in the hope that it will be useful,

  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

  * GNU General Public License for more details.

  */

 #include <stdio.h>

 #include <stdarg.h>

 #include <getopt.h>

 #include <sys/stat.h>

 #include <string.h>

 #include "x86dasm/x86dasm.h"

 #include "sh4/sh4trans.h"

 #include "sh4/sh4core.h"

 #include "sh4/sh4mmio.h"

 #include "sh4/mmu.h"

 struct dreamcast_module sh4_module;

 struct mmio_region mmio_region_MMU;

 struct mmio_region mmio_region_PMM;

 struct breakpoint_struct sh4_breakpoints[MAX_BREAKPOINTS];

 int sh4_breakpoint_count = 0;

 #define MAX_INS_SIZE 32

 struct mem_region_fn **sh4_address_space = (void *)0x12345432;

 struct mem_region_fn **sh4_user_address_space = (void *)0x12345678;

 char *option_list = "s:o:d:h";

 struct option longopts[1] = { { NULL, 0, 0, 0 } };

 char *input_file = NULL;

 char *diff_file = NULL;

 char *output_file = NULL;

 gboolean sh4_starting;

 uint32_t start_addr = 0x8C010000;

 uint32_t sh4_cpu_period = 5;

 unsigned char dc_main_ram[4096];

 unsigned char dc_boot_rom[4096];

 FILE *in;

 char *inbuf;

 struct x86_symbol local_symbols[] = {

     { "sh4r+128", ((char *)&sh4r)+128 },

     { "sh4_cpu_period", &sh4_cpu_period },

     { "sh4_address_space", (void *)0x12345432 },

     { "sh4_user_address_space", (void *)0x12345678 },

     { "sh4_write_fpscr", sh4_write_fpscr },

     { "sh4_write_sr", sh4_write_sr },

     { "sh4_read_sr", sh4_read_sr },

     { "sh4_sleep", sh4_sleep },

     { "sh4_fsca", sh4_fsca },

     { "sh4_ftrv", sh4_ftrv },

     { "sh4_switch_fr_banks", sh4_switch_fr_banks },

     { "sh4_execute_instruction", sh4_execute_instruction },

     { "signsat48", signsat48 },

     { "xlat_get_code_by_vma", xlat_get_code_by_vma },

     { "xlat_get_code", xlat_get_code }

 };

 // Stubs

 gboolean sh4_execute_instruction( ) { return TRUE; }

 void sh4_accept_interrupt() {}

 void sh4_set_breakpoint( uint32_t pc, breakpoint_type_t type ) { }

 gboolean sh4_clear_breakpoint( uint32_t pc, breakpoint_type_t type ) { return TRUE; }

 gboolean dreamcast_is_running() { return FALSE; }

 int sh4_get_breakpoint( uint32_t pc ) { return 0; }

 void sh4_finalize_instruction() { }

 void sh4_core_exit( int exit_code ){}

 void sh4_crashdump() {}

 void event_execute() {}

 void TMU_run_slice( uint32_t nanos ) {}

 void CCN_set_cache_control( int val ) { }

 void PMM_write_control( int ctr, uint32_t val ) { }

 void SCIF_run_slice( uint32_t nanos ) {}

 void FASTCALL sh4_write_fpscr( uint32_t val ) { }

 void FASTCALL sh4_write_sr( uint32_t val ) { }

 uint32_t FASTCALL sh4_read_sr( void ) { return 0; }

 void FASTCALL sh4_sleep() { }

 void FASTCALL sh4_fsca( uint32_t angle, float *fr ) { }

 void FASTCALL sh4_ftrv( float *fv ) { }

 void FASTCALL signsat48(void) { }

 void sh4_switch_fr_banks() { }

 void mem_copy_to_sh4( sh4addr_t addr, sh4ptr_t src, size_t size ) { }

 gboolean sh4_has_page( sh4vma_t vma ) { return TRUE; }

 void syscall_invoke( uint32_t val ) { }

 void dreamcast_stop() {} 

 void dreamcast_reset() {}

 void FASTCALL sh4_raise_reset( int exc ) { }

 void FASTCALL sh4_raise_exception( int exc ) { }

 void FASTCALL sh4_raise_tlb_exception( int exc, sh4vma_t vma ) { }

 void FASTCALL sh4_raise_tlb_multihit( sh4vma_t vma) { }

 void FASTCALL sh4_raise_trap( int exc ) { }

 void FASTCALL sh4_flush_store_queue( sh4addr_t addr ) { }

 void FASTCALL sh4_flush_store_queue_mmu( sh4addr_t addr, void *exc ) { }

 void sh4_handle_pending_events() { }

 uint32_t sh4_sleep_run_slice(uint32_t nanosecs) { return nanosecs; }

 gboolean gui_error_dialog( const char *fmt, ... ) { return TRUE; }

 gboolean FASTCALL mmu_update_icache( sh4vma_t addr ) { return TRUE; }

 void MMU_ldtlb() { }

 void event_schedule(int event, uint32_t nanos) { }

 struct sh4_icache_struct sh4_icache;

 struct mem_region_fn mem_region_unmapped;

 const struct cpu_desc_struct sh4_cpu_desc;

 sh4addr_t FASTCALL mmu_vma_to_phys_disasm( sh4vma_t vma ) { return vma; }

 void usage()

 {

     fprintf( stderr, "Usage: testsh4x86 [options] <input bin file>\n");

     fprintf( stderr, "Options:\n");

     fprintf( stderr, "  -d <filename>  Diff results against contents of file\n" );

     fprintf( stderr, "  -h             Display this help message\n" );

     fprintf( stderr, "  -o <filename>  Output disassembly to file [stdout]\n" );

     fprintf( stderr, "  -s <addr>      Specify start address of binary [8C010000]\n" );

 }

 void emit( void *ptr, int level, const gchar *source, const char *msg, ... )

 {

     va_list ap;

     va_start( ap, msg );

     vfprintf( stderr, msg, ap );

     fprintf( stderr, "\n" );

     va_end(ap);

 }

 struct sh4_registers sh4r;

 int main( int argc, char *argv[] )

 {

     struct stat st;

     int opt;

     while( (opt = getopt_long( argc, argv, option_list, longopts, NULL )) != -1 ) {

 	switch( opt ) {

 	case 'd':

 	    diff_file = optarg;

 	    break;

 	case 'o':

 	    output_file = optarg;

 	    break;

 	case 's':

 	    start_addr = strtoul(optarg, NULL, 0);

 	    break;

 	case 'h':

 	    usage();

 	    exit(0);

 	}

     }

     if( optind < argc ) {

 	input_file = argv[optind++];

     } else {

 	usage();

 	exit(1);

     }

     mmio_region_MMU.mem = malloc(4096);

     memset( mmio_region_MMU.mem, 0, 4096 );

     ((uint32_t *)mmio_region_MMU.mem)[4] = 1;

     in = fopen( input_file, "ro" );

     if( in == NULL ) {

 	perror( "Unable to open input file" );

 	exit(2);

     }

     fstat( fileno(in), &st );

     inbuf = malloc( st.st_size );

     fread( inbuf, st.st_size, 1, in );

     sh4_icache.mask = 0xFFFFF000;

     sh4_icache.page_vma = start_addr & 0xFFFFF000;

     sh4_icache.page = (unsigned char *)(inbuf - (sh4_icache.page_vma&0xFFF));

     sh4_icache.page_ppa = start_addr & 0xFFFFF000;

     xlat_cache_init();

     uintptr_t pc;

     uint8_t *buf = sh4_translate_basic_block( start_addr );

     uint32_t buflen = xlat_get_code_size(buf);

     x86_disasm_init( buf, (uintptr_t)buf, buflen );

     x86_set_symtab( local_symbols, sizeof(local_symbols)/sizeof(struct x86_symbol) );

     for( pc = (uintptr_t)buf; pc < ((uintptr_t)buf) + buflen;  ) {

 	char buf[256];

 	char op[256];

 	uintptr_t pc2 = x86_disasm_instruction( pc, buf, sizeof(buf), op );

 	fprintf( stdout, "%p: %s\n", (void *)pc, buf );

 	pc = pc2;

     }

     return 0;

 }