Subversion Repositories SvarDOS

Rev

Rev 387 | Go to most recent revision | Details | Last modification | View Log | RSS feed

Rev Author Line No. Line
379 mateuszvis 1 
/*
2 
 * ver
3 
 */
4 
 
5 
#define PVER "20211027"
6 
 
7 
static int cmd_ver(struct cmd_funcparam *p) {
8 
  char *buff = p->BUFFER;
9 
  unsigned char maj = 0, min = 0;
10 
 
11 
  /* help screen */
12 
  if ((p->argc == 1) && (imatch(p->argv[0], "/?"))) {
13 
    outputnl("Displays the DOS version.");
14 
    return(-1);
15 
  }
16 
 
17 
  if (p->argc != 0) {
18 
    outputnl("Invalid parameter");
19 
    return(-1);
20 
  }
21 
 
22 
  _asm {
23 
    push ax
24 
    push bx
25 
    push cx
26 
    mov ah, 0x30   /* Get DOS version number */
27 
    int 0x21       /* AL=maj_ver_num  AH=min_ver_num  BX,CX=OEM */
28 
    mov [maj], al
29 
    mov [min], ah
30 
    pop cx
31 
    pop bx
32 
    pop ax
33 
  }
34 
 
35 
  sprintf(buff, "DOS kernel version %u.%u", maj, min);
36 
 
37 
  outputnl(buff);
38 
  outputnl("SvarCOM shell ver " PVER);
39 
  return(-1);
40 
}