;=----------------------------------------------------------------------------=;
;                            GNU GPL OS/K                                      ;
;                                                                              ;
;   Desc:   Basic Read Only Keyboard Driver                                    ;
;                   (x86_64 architecture only)                                 ;
;                                                                              ;
;                                                                              ;
;   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/>.             ;
;=----------------------------------------------------------------------------=;

[BITS 64]

global KeybIsr
extern KeybHandler

%macro pushAll 0
      push   rax
      push   rcx
      push   rdx
      push   rbx
      push   rbp
      push   rsi
      push   rdi
%endmacro

%macro popAll 0
      pop      rdi
      pop      rsi
      pop      rbp
      pop      rbx
      pop      rdx
      pop      rcx
      pop      rax
%endmacro

;;
;; Keyboard handler
;;
KeybIsr:
    cli
    pushAll

    xor rax, rax
    mov ax, ds
    push rax

    call KeybHandler

    pop rax
    mov ds, ax

    popAll
    iretq