Syntax errors, why?

[Stephane Fonteyne]

Dear support

I have written een console program for control the 8243 expander ports. When I compile my program it doesn't give me compile errors.
There is no example how I can right use the functions HI() en LO()

Error report:
=========

PowerBASIC Console Compiler
PB/CC Version 5.00
Copyright (c) 1998-2008 PowerBasic Inc.
Venice, Florida USA
All Rights Reserved

Error 477 in E:\PROGRA~1\PBCC50\Samples\PCPOOR~1\WinXP\PARALL~1\8243_P~2\2PortsExpander32Bits.bas(128:034): Syntax error
Line 128: Instellen(0, LO(LONG,n)) MOD 16) 'P0: bits 0...3
==============================
Compile failed at 9:25:17 on 26/09/2008

'Problem 1
=======

Instellen(0, LO(LONG,n)) MOD 16)                'P0: bits 0...3              

'Problem 2
=======

writeLn(n, ' ' , value);  into PBCC code

DIM value   AS BYTE           
value = Inlezen(4) + 16 * Inlezen(5) + 256 * Inlezen(6) + 4096 * Inlezen(7)
STDOUT " " & HEX$(n) & HEX$(value) & $CR & $LF

The Whole code in attachtment file for look the full code that you can analyse what I have wrong

Kind regards
Stephane
[/CODE]

Use the Evaluation version of the NtPort.dll library
http://www.zealsoftstudio.com/ntport/

Attachment : My halfworked application runs under console 32-bit

[Eddy Van Esch]

When I compile my program it doesn't give me compile errors.

--- That's good, isn't it ?

Error 477 in E:\PROGRA~1\PBCC50\Samples\PCPOOR~1\WinXP\PARALL~1\8243_P~2\2PortsExpander32Bits.bas(128:034): Syntax error

--- That's not good, isn't it ...


Missing parenthesis:

 Instellen(0, LO(LONG,n)) MOD 16)

Notice: 2 times "(" and 3 times ")"

So probably something like this should work:

 Instellen((0, LO(LONG,n)) MOD 16)

Kind regards

[Stephane Fonteyne]

No it have the same errors !

Eddy

Here is my right corrected code:
========================

GLOBAL PortNumber AS LONG, DataBits AS BYTE
FUNCTION PBMAIN () AS LONG
    
    DIM n       AS LONG
    DIM value   AS BYTE

    FOR n = 0 TO 65535
                
        Instellen((0, LO(LONG,n)) MOD 16)                'P0: bits 0...3
        Instellen((1, LO(LONG,n)) \ 16)                  'P1: bits 1...7
        Instellen((2, HI(LONG,n)) MOD 16)                'P2: bits 8...11
        Instellen((3, HI(LONG,n)) \ 16)                  'P3: bits 12..15

        value = Inlezen(4) + 16 * Inlezen(5) + 256 * Inlezen(6) + 4096 *  Inlezen(7)
        STDOUT " " & HEX$(n) & HEX$(value) & $CR & $LF
        'WriteLn(n,' ',Inlezen(4) + 16 * Inlezen(5) + 256 * Inlezen(6) + 4096 * Inlezen(7)
    NEXT n

END FUNCTION

SUB Instellen(BYREF PortNr AS BYTE, BYREF DataWoord AS BYTE)
    LOCAL CS AS BYTE

    IF (PortNr \ 4) = 0 THEN CS = 4                                 'D1 = CS1 = 0 2^2
    IF (PortNr \ 4) = 1 THEN CS = 2                                 'D2 = CS2 = 0 2^1

    OutPort ((LPT1), CS + 1)                                        'D0 = CONTROL = 1
    OutPort ((LPT1 + 2), ((PortNr AND &h03) + &h04) XOR &h0B))      'Stuurcommando
    OutPort ((LPT1), CS)                                            'D0 = CONTROL = 0
    OutPort ((LPT1 + 2), DataWoord XOR &h0B                         'Datawoord
    OutPort ((LPT1), CS + 1)                                        'D0 = CONTROL = 1
    OutPort ((LPT1), &h06 + 1)                                      'CS1 = 1, CS2 = 1
END SUB

Error report:
=========

PowerBASIC Console Compiler
PB/CC   Version 5.00 
Copyright (c) 1998-2008 PowerBasic Inc.
Venice, Florida USA
All Rights Reserved

Error 414 in E:\PROGRA~1\PBCC50\Samples\PCPOOR~1\WinXP\PARALL~1\8243_P~2\2PortsExpander32Bits.bas(127:021):  ")" expected
Line 127:         Instellen((0, LO(LONG,n)) MOD 16)                'P0: bits 0...3
==============================
Compile failed at 10:15:40 on 26/09/2008

Can somebody help me what I do wrong ?

[Eddy Van Esch]

What is the use of using LO(LONG, n) and HI(LONG, n) if n is already a LONG variable ??

    DIM n       AS LONG
        Instellen((0, LO(LONG,n)) MOD 16)
        Instellen((2, HI(LONG,n))

[Eddy Van Esch]

Instellen((0, LO(LONG,n)) MOD 16)

perhaps should be something like this:

Instellen(0, n MOD 16)

etc...

[Chris Holbrook]

Instellen((0, LO(LONG,n)) MOD 16)

perhaps should be something like this:

Instellen(0, n MOD 16)

etc...

or maybe you mean LO(INTEGER,n)? as the book says,

LO function
Purpose
Extract the least significant (low-order) portion of an value.

Syntax
result = LO(type, value)

Remarks
The value returned by LO is unsigned if type is BYTE, WORD, or DWORD, and signed if type is INTEGER or LONG. value may be up to twice the size of the data type specified by type. In the following example, n may be up to a 16-bit value (twice the size of a BYTE):

b = LO(BYTE,n)

Restrictions
LO replaces LOBYT, LOWRD, and LOINT. Note that those functions may not be supported in future versions of PowerBASIC, so update your code to use the new syntax.

See also
HI, MAK

[Stephane Fonteyne]

Thanks developers

My code works now