;=----------------------------------------------------------------------------=;
;                            GNU GPL OS/K                                      ;
;                                                                              ;
;   Desc: Interrupt Descriptor Table related functions                         ;
;                                                                              ;
;                                                                              ;
;   Copyright © 2018-2019 The OS/K Team                                        ;
;                                                                              ;
;   This file is part of OS/K.                                                 ;
;                                                                              ;
;   OS/K 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.                                        ;
;                                                                              ;
;   OS/K 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 OS/K.  If not, see <https://www.gnu.org/licenses/>.             ;
;=----------------------------------------------------------------------------=;

%include "kaleid/kernel/cpu/isr.inc"

global IdtInit
global divideByZero
extern idtPtr
extern IdtHandler

;;
;; Loads the IDT
;;
IdtInit:
    lidt [idtPtr]
    ret

;;
;; Bug test
;;
divideByZero:
    pushAll
    mov eax, 17
    mov ebx, 0
    xor edx, edx
    div ebx
    popAll
    ret

;;
;; ISR handler
;;
isrPreHandler:
    pushAll

    xor rax, rax
    mov ax, ds
    push rax

    call IdtHandler

    pop rax
    mov ds, ax

    popAll
    sti
    iretq

;; Divide Error Fault
IsrWithoutErrCode 0

;; Debug Exception Fault/trap
IsrWithoutErrCode 1

;; NMI Interrupt
IsrWithoutErrCode 2

;; Breakpoint Trap
IsrWithoutErrCode 3

;; Overflow Trap
IsrWithoutErrCode 4

;; Bound Range Exceeded Fault
IsrWithoutErrCode 5

;; Invalid Opcode Fault
IsrWithoutErrCode 6

;; Device Not Available or No Math Coprocessor Fault
IsrWithoutErrCode 7

;; Coprocessor Segment Overrun Fault
IsrWithoutErrCode 9

;; x87 FPU Floating Point or Math Fault
IsrWithoutErrCode 16

;; Alignment Check Fault
IsrWithoutErrCode 17

;; Machine Check Abort
IsrWithoutErrCode 18

;; SIMD Floating Point Fault
IsrWithoutErrCode 19

;; Virtualization Exception Fault
IsrWithoutErrCode 20

;; Double Fault Abort
IsrWithErrCode   8

;; Invalid TSS Fault
IsrWithErrCode   10

;; Segment Not Present Fault
IsrWithErrCode   11

;; Stack Segment Fault
IsrWithErrCode   12

;; General Protection Fault
IsrWithErrCode   13

;; Page Fault
IsrWithErrCode   14

;; Reserved
IsrWithoutErrCode 15
IsrWithoutErrCode 21
IsrWithoutErrCode 22
IsrWithoutErrCode 23
IsrWithoutErrCode 24
IsrWithoutErrCode 25
IsrWithoutErrCode 26
IsrWithoutErrCode 27
IsrWithoutErrCode 28
IsrWithoutErrCode 29
IsrWithoutErrCode 30
IsrWithoutErrCode 31