Subversion Repositories SvarDOS

Rev

Rev 410 | Rev 421 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 410 Rev 414
Line 23... Line 23...
23 
    return(-1);
 23 
    return(-1);
24 
  }
 24 
  }
25 
 
 25 
 
26 
  /* one param? must be numeric in range 1+ */
 26 
  /* one param? must be numeric in range 1+ */
27 
  if (p->argc == 1) {
 27 
  if (p->argc == 1) {
- 
 
 28 
    unsigned char nlsfuncflag = 0;
28 
    if (atouns(&nnn, p->argv[0]) != 0) {
 29 
    if (atouns(&nnn, p->argv[0]) != 0) {
29 
      outputnl("Invalid code page number");
 30 
      outputnl("Invalid code page number");
30 
      return(-1);
 31 
      return(-1);
31 
    }
 32 
    }
32 
    /* set code page to nnn */
 - 
 
33 
    _asm {
 33 
    _asm {
- 
 
 34 
      /* verify that NLSFUNC is installed */
34 
      push ax
 35 
      push ax
35 
      push bx
 36 
      push bx
36 
 
 37 
 
- 
 
 38 
      mov ax, 0x1400    /* DOS 3+ -- is NLSFUNC.EXE installed? */
- 
 
 39 
      int 0x2f          /* AL = 0xff -> installed */
- 
 
 40 
      cmp al, 0xff
- 
 
 41 
      jne DONE
- 
 
 42 
      mov [nlsfuncflag], 1
- 
 
 43 
 
- 
 
 44 
      /* set code page to nnn */
- 
 
 45 
 
37 
      mov ax, 0x6602    /* DOS 3.3+ -- Activate Code Page */
 46 
      mov ax, 0x6602    /* DOS 3.3+ -- Activate Code Page */
38 
      mov bx, [nnn]
 47 
      mov bx, [nnn]
39 
      int 0x21          /* CF set on error and err code in AX */
 48 
      int 0x21          /* CF set on error and err code in AX */
40 
      jnc DONE
 49 
      jnc DONE
41 
      mov [errcode], ax /* store err code in nnn on failure */
 50 
      mov [errcode], ax /* store err code in nnn on failure */
42 
      DONE:
 51 
      DONE:
43 
 
 52 
 
44 
      pop bx
 53 
      pop bx
45 
      pop ax
 54 
      pop ax
46 
    }
 55 
    }
47 
    if (errcode == 1) {   /* DOS ERR 1 means "Function number invalid" (ie. no NLS) */
 56 
    if (nlsfuncflag == 0) {
48 
      outputnl("NLSFUNC not installed");
 57 
      outputnl("NLSFUNC not installed");
49 
    } else if (errcode != 0) {
 58 
    } else if (errcode != 0) {
50 
      outputnl("Failed to change code page");
 59 
      outputnl("Failed to change code page");
51 
    }
 60 
    }
52 
 
 61