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mateuszvis |
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/* This file is part of the SvarCOM project and is published under the terms
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* of the MIT license.
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*
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* Copyright (C) 2021 Mateusz Viste
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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mateuszvis |
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/*
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* ver
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*/
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mateuszvis |
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#define PVER "2021.0"
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mateuszvis |
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static int cmd_ver(struct cmd_funcparam *p) {
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char *buff = p->BUFFER;
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unsigned char maj = 0, min = 0;
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/* help screen */
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mateuszvis |
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if (cmd_ishlp(p)) {
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mateuszvis |
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outputnl("Displays the DOS version.");
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return(-1);
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}
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if (p->argc != 0) {
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outputnl("Invalid parameter");
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return(-1);
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}
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_asm {
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push ax
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push bx
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push cx
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mov ah, 0x30 /* Get DOS version number */
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int 0x21 /* AL=maj_ver_num AH=min_ver_num BX,CX=OEM */
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mov [maj], al
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mov [min], ah
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pop cx
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pop bx
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pop ax
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}
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sprintf(buff, "DOS kernel version %u.%u", maj, min);
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outputnl(buff);
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outputnl("SvarCOM shell ver " PVER);
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return(-1);
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}
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