diff options
author | Cyrille Bagard <nocbos@gmail.com> | 2009-05-31 20:58:20 (GMT) |
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committer | Cyrille Bagard <nocbos@gmail.com> | 2009-05-31 20:58:20 (GMT) |
commit | 8724afdc73e0ddad86f46de1a3fbe0254575a76e (patch) | |
tree | de666b66e154c6c6453807d3fa4272efb6877a91 /src/arch/mips/registers.c | |
parent | 0b7d7f26c745ff0f52e9e483a0980351368ca824 (diff) |
Supported a new architecture (MIPS).
git-svn-id: svn://svn.gna.org/svn/chrysalide/trunk@67 abbe820e-26c8-41b2-8c08-b7b2b41f8b0a
Diffstat (limited to 'src/arch/mips/registers.c')
-rw-r--r-- | src/arch/mips/registers.c | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/src/arch/mips/registers.c b/src/arch/mips/registers.c new file mode 100644 index 0000000..89e13ca --- /dev/null +++ b/src/arch/mips/registers.c @@ -0,0 +1,249 @@ + +/* OpenIDA - Outil d'analyse de fichiers binaires + * registers.c - aides auxiliaires relatives aux registres MIPS + * + * Copyright (C) 2009 Cyrille Bagard + * + * This file is part of OpenIDA. + * + * OpenIDA 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 3 of the License, or + * (at your option) any later version. + * + * OpenIDA 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 Foobar. If not, see <http://www.gnu.org/licenses/>. + */ + + +#include "registers.h" + + +#include <malloc.h> +#include <stdio.h> + + + +/* Registre MIPS */ +enum _mips_register +{ + MIPS_REG_ZERO = 0, /* Constante zéro */ + MIPS_REG_AT = 1, /* Temporaire assemblage */ + MIPS_REG_V_0 = 2, /* Retours et évaluations */ + MIPS_REG_V_1 = 3, /* Retours et évaluations */ + MIPS_REG_ARG_0 = 4, /* Arguments de fonction */ + MIPS_REG_ARG_1 = 5, /* Arguments de fonction */ + MIPS_REG_ARG_2 = 6, /* Arguments de fonction */ + MIPS_REG_ARG_3 = 7, /* Arguments de fonction */ + MIPS_REG_TMP_0 = 8, /* Stockage temporaire */ + MIPS_REG_TMP_1 = 9, /* Stockage temporaire */ + MIPS_REG_TMP_2 = 10, /* Stockage temporaire */ + MIPS_REG_TMP_3 = 11, /* Stockage temporaire */ + MIPS_REG_TMP_4 = 12, /* Stockage temporaire */ + MIPS_REG_TMP_5 = 13, /* Stockage temporaire */ + MIPS_REG_TMP_6 = 14, /* Stockage temporaire */ + MIPS_REG_TMP_7 = 15, /* Stockage temporaire */ + MIPS_REG_SAV_0 = 16, /* Sauvegarde des registres */ + MIPS_REG_SAV_1 = 17, /* Sauvegarde des registres */ + MIPS_REG_SAV_2 = 18, /* Sauvegarde des registres */ + MIPS_REG_SAV_3 = 19, /* Sauvegarde des registres */ + MIPS_REG_SAV_4 = 20, /* Sauvegarde des registres */ + MIPS_REG_SAV_5 = 21, /* Sauvegarde des registres */ + MIPS_REG_SAV_6 = 22, /* Sauvegarde des registres */ + MIPS_REG_SAV_7 = 23, /* Sauvegarde des registres */ + MIPS_REG_TMP_8 = 24, /* Stockage temporaire */ + MIPS_REG_TMP_9 = 25, /* Stockage temporaire */ + MIPS_REG_KERN_0 = 26, /* Réservé pour le noyau */ + MIPS_REG_KERN_1 = 27, /* Réservé pour le noyau */ + MIPS_REG_GLOBAL = 28, /* Pointeur global */ + MIPS_REG_STACK = 29, /* Pointeur de pile */ + MIPS_REG_FRAME = 30, /* Pointeur de frame */ + MIPS_REG_RET = 31 /* Adresse de retour */ + +}; + + + +/****************************************************************************** +* * +* Paramètres : value = valeur correspondant au registre. * +* * +* Description : Récupère l'indentifiant interne d'un registre. * +* * +* Retour : Registre définit ou NULL. * +* * +* Remarques : - * +* * +******************************************************************************/ + +mips_register *get_mips_register(bin_t value) +{ + mips_register *result; /* Représentation à renvoyer */ + + if (value > 31) return NULL; + + result = (mips_register *)calloc(1, sizeof(mips_register)); + + *result = value; + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : reg = registre à supprimer. * +* * +* Description : Efface de la mémoire l'indentifiant interne d'un registre. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +void free_mips_register(mips_register *reg) +{ + free(reg); + +} + + +/****************************************************************************** +* * +* Paramètres : reg = registre à consulter. * +* * +* Description : Indique si le registre correspond à ra. * +* * +* Retour : true si la correspondance est avérée, false sinon. * +* * +* Remarques : - * +* * +******************************************************************************/ + +bool is_mips_register_return_address(const mips_register *reg) +{ + return (*reg == MIPS_REG_RET); + +} + + +/****************************************************************************** +* * +* Paramètres : reg = registre à imprimer. * +* syntax = type de représentation demandée. * +* * +* Description : Traduit un registre MIPS en texte. * +* * +* Retour : Traduction en chaîne à libérer de la mémoire. * +* * +* Remarques : - * +* * +******************************************************************************/ + +char *mips_register_as_text(const mips_register *reg, AsmSyntax syntax) +{ + char *result; /* Chaîne à renvoyer */ + + result = (char *)calloc(6, sizeof(char)); + + switch (syntax) + { + case ASX_INTEL: + switch (*reg) + { + case MIPS_REG_ZERO: + snprintf(result, 6, "zero"); + break; + case MIPS_REG_AT: + snprintf(result, 6, "at"); + break; + case MIPS_REG_V_0 ... MIPS_REG_V_1: + snprintf(result, 6, "v%c", '0' + *reg - MIPS_REG_V_0); + break; + case MIPS_REG_ARG_0 ... MIPS_REG_ARG_3: + snprintf(result, 6, "a%c", '0' + *reg - MIPS_REG_ARG_0); + break; + case MIPS_REG_TMP_0 ... MIPS_REG_TMP_7: + snprintf(result, 6, "t%c", '0' + *reg - MIPS_REG_TMP_0); + break; + case MIPS_REG_SAV_0 ... MIPS_REG_SAV_7: + snprintf(result, 6, "s%c", '0' + *reg - MIPS_REG_SAV_0); + break; + case MIPS_REG_TMP_8 ... MIPS_REG_TMP_9: + snprintf(result, 6, "t%c", '8' + *reg - MIPS_REG_TMP_8); + break; + case MIPS_REG_KERN_0 ... MIPS_REG_KERN_1: + snprintf(result, 6, "k%c", '0' + *reg - MIPS_REG_KERN_0); + break; + case MIPS_REG_GLOBAL: + snprintf(result, 6, "gp"); + break; + case MIPS_REG_STACK: + snprintf(result, 6, "sp"); + break; + case MIPS_REG_FRAME: + snprintf(result, 6, "fp"); + break; + case MIPS_REG_RET: + snprintf(result, 6, "ra"); + break; + } + break; + + case ASX_ATT: + switch (*reg) + { + case MIPS_REG_ZERO: + snprintf(result, 6, "%%zero"); + break; + case MIPS_REG_AT: + snprintf(result, 6, "%%at"); + break; + case MIPS_REG_V_0 ... MIPS_REG_V_1: + snprintf(result, 6, "%%v%c", '0' + *reg - MIPS_REG_V_0); + break; + case MIPS_REG_ARG_0 ... MIPS_REG_ARG_3: + snprintf(result, 6, "%%a%c", '0' + *reg - MIPS_REG_ARG_0); + break; + case MIPS_REG_TMP_0 ... MIPS_REG_TMP_7: + snprintf(result, 6, "%%t%c", '0' + *reg - MIPS_REG_TMP_0); + break; + case MIPS_REG_SAV_0 ... MIPS_REG_SAV_7: + snprintf(result, 6, "%%s%c", '0' + *reg - MIPS_REG_SAV_0); + break; + case MIPS_REG_TMP_8 ... MIPS_REG_TMP_9: + snprintf(result, 6, "%%t%c", '8' + *reg - MIPS_REG_TMP_8); + break; + case MIPS_REG_KERN_0 ... MIPS_REG_KERN_1: + snprintf(result, 6, "%%k%c", '0' + *reg - MIPS_REG_KERN_0); + break; + case MIPS_REG_GLOBAL: + snprintf(result, 6, "%%gp"); + break; + case MIPS_REG_STACK: + snprintf(result, 6, "%%sp"); + break; + case MIPS_REG_FRAME: + snprintf(result, 6, "%%fp"); + break; + case MIPS_REG_RET: + snprintf(result, 6, "%%ra"); + break; + } + break; + + default: + break; + + } + + return result; + +} |