/*
 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#pragma once

#include <AK/Types.h>

extern "C" void interrupt_common_asm_entry();

#define GENERATE_GENERIC_INTERRUPT_HANDLER_ASM_ENTRY(interrupt_vector, isr_number) \
    extern "C" void interrupt_##interrupt_vector##_asm_entry();                    \
    asm(".globl interrupt_" #interrupt_vector "_asm_entry\n"                       \
        "interrupt_" #interrupt_vector "_asm_entry:\n"                             \
        "    pushw $" #isr_number "\n"                                             \
        "    pushw $0\n"                                                           \
        "    jmp interrupt_common_asm_entry\n");

asm(
    ".globl interrupt_common_asm_entry\n"
    "interrupt_common_asm_entry: \n"
    "    pusha\n"
    "    pushl %ds\n"
    "    pushl %es\n"
    "    pushl %fs\n"
    "    pushl %gs\n"
    "    pushl %ss\n"
    "    mov $0x10, %ax\n"
    "    mov %ax, %ds\n"
    "    mov %ax, %es\n"
    "    cld\n"
    "    call handle_interrupt\n"
    "    add $0x4, %esp\n" // "popl %ss"
    "    popl %gs\n"
    "    popl %fs\n"
    "    popl %es\n"
    "    popl %ds\n"
    "    popa\n"
    "    add $0x4, %esp\n"
    "    iret\n");