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/* Chrysalide - Outil d'analyse de fichiers binaires
 * ##FILE## - traduction d'instructions ARMv7
 *
 * Copyright (C) 2014 Cyrille Bagard
 *
 *  This file is part of Chrysalide.
 *
 *  Chrysalide 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.
 *
 *  Chrysalide 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/>.
 */


@title LDR (literal)

@encoding(t1) {

    @half 0 1 0 0 1 Rt(3) imm8(8)

    @syntax <Rgt> <label>

    @conv {

        Rgt = Register(Rt)
        imm32 = ZeroExtend(imm8:'00', 10, 32)
        label = MakeAccessOffset(1, imm32)

    }

    @hooks {

        link = handle_links_with_instruction_ldr_literal_from_thumb
        post = post_process_ldr_instructions

    }

}

@encoding(T2) {

    @word 1 1 1 1 1 0 0 0 U(1) 1 0 1 1 1 1 1 Rt(4) imm12(12)

    @syntax <Rgt> <label>

    @conv {

        Rgt = Register(Rt)
        imm32 = ZeroExtend(imm12, 12, 32)
        label = MakeAccessOffset(U, imm32)

    }

    @hooks {

        link = handle_links_with_instruction_ldr_literal_from_thumb
        post = post_process_ldr_instructions

    }

    @rules {

        //if t == 15 && InITBlock() && !LastInITBlock() then UNPREDICTABLE;
        if (Rt == '1111'); call DefineAsReturn(1)

    }

}

@encoding(A1) {

    @word cond(4) 0 1 0 1 U(1) 0 0 1 1 1 1 1 Rt(4) imm12(12)

    @syntax {c} <Rgt> <label>

    @conv {

        c = Condition(cond)
        Rgt = Register(Rt)
        imm32 = ZeroExtend(imm12, 12, 32)
        label = MakeAccessOffset(U, imm32)

    }

    @hooks {

        link = handle_links_with_instruction_ldr_literal_from_arm
        post = post_process_ldr_instructions

    }

    @rules {

        //if t == 15 && InITBlock() && !LastInITBlock() then UNPREDICTABLE;
        if (Rt == '1111'); call DefineAsReturn(1)

    }

}