/* Hey EMACS -*- linux-c -*- */ /* $Id: romcalls.c 2268 2006-11-06 17:18:51Z roms $ */ /* TiEmu - Tiemu Is an EMUlator * * Copyright (c) 2000-2001, Thomas Corvazier, Romain Liévin * Copyright (c) 2001-2003, Romain Liévin * Copyright (c) 2003, Julien Blache * Copyright (c) 2004, Romain Liévin * Copyright (c) 2005, Romain Liévin * Copyright (c) 2006-2007, Kevin Kofler * * 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. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ /* Symbols (ROM calls address and names) */ #include #include #include #include #include "romcalls.h" #include "images.h" #include "ti68k_def.h" #include "timem.h" #include "main.h" static int loaded = 0; // loaded static int addr_loaded = 0; // addresses loaded static ROM_CALL table[NMAX_ROMCALLS] = { /* Generated from romcalls.txt by replacing: ([^:]*):(.*) with: {0x\1,0,"\2"}, in Kate. */ #include "romcalls.inc" }; // list by id static int size; /* =========== */ /* Retrieve base address of ROM calls table and size. */ void romcalls_get_table_infos(uint32_t *base, uint32_t *size) { *base = *size = 0; if(calc_type == TI92) return; *base = rd_long(&rom[0x12000 + 0x88 + 0xC8]); *size = rd_long(&rom[((*base-4) & 0x0fffff)]); if (*size > sizeof(table)/sizeof(table[0])) { fprintf(stderr,"WARNING: this ROM_CALL table has more entries than those of all known AMS versions !\nWARNING: clamping the number of entries.\n"); *size = sizeof(table)/sizeof(table[0]); } } /* Given a ROM call ID, retrieve address of ROM call. */ void romcalls_get_symbol_address(int id, uint32_t *addr) { uint32_t base; base = rd_long(&rom[0x12000 + 0x88 + 0xC8]); *addr = rd_long(&rom[(base & 0x0fffff) + 4*id]); } /* =========== */ /* Fill the addr field from ROM calls located in FLASH. Don't touch other fields ! And construct list from ROM call table. */ static int merge_from_flash(void) { uint32_t addr; int i; romcalls_get_table_infos(&addr, (uint32_t *)&size); if(size == 0) return -1; for(i = 0; i < size; i++) { if(table[i].name == NULL) table[i].name = strdup("unknown"); table[i].addr = rd_long(&rom[(addr & 0x0fffff) + (i << 2)]); } addr_loaded = 1; return 0; } /* Load ROM calls from file and FLASH and merge. Return value: 0 if successful -1 if error -3 if TI92 */ int romcalls_load(int noflash) { // check whether parsing is possible if(calc_type == TI92) return -3; if(!noflash && merge_from_flash()) return -1; loaded = !0; return 0; } int romcalls_is_loaded(void) { return loaded; } /* =========== */ // cache last search (disasm) static int last_id = 0; // returns id or -1 int romcalls_is_addr(uint32_t addr) { int i; if(!addr_loaded) return -1; for(i = 0; i < size; i++) { if(addr == table[i].addr) return last_id = i; } return -1; } const char* romcalls_get_name(int id) { int maxid = size; if (!loaded) return "not loaded"; if (id >= 0) { // Assume maximum number of ROM_CALLs if we're not disassembling an OS. if (maxid == 0) { maxid = sizeof(table)/sizeof(table[0]); } if (id < maxid) { return table[id].name; } } return NULL; } // No need to check the parameter: the only caller of romcalls_get_addr() calls // romcalls_get_table_infos() before calling romcalls_get_addr(). uint32_t romcalls_get_addr(int id) { return table[id].addr; }