Posted April 25, 200619 yr hey folks, in vb: Dim a As Integer a = a Or &H80 ok the first line is clear, but the second line im not sure about. can somebody type it in pseudo code? it seems like the &H80 is nothing more than hex value for decimal 128. i dont know why i would type: a can be a or 128 i mean, its not commented, i would understand it this way. why would the interpreter care if i tell him, a can be either a or 128 lol. i dont get it. second prob: n = 8: d = 0 lol wtf!!!
April 26, 200619 yr You're just starting VB. Don't bother. Go for C++. http://www.cprogramming.com/tutorial.html
April 26, 200619 yr Author im neither coding in vb nor c++. just answer the questions or stay calm, ty.
April 26, 200619 yr why would you do a = a or the value? make a if statement if this happens then a = a else a = &H80 end if and yes you can do a = 128 if it suits you. no idea about the second one, thats wierd.
April 26, 200619 yr Author whats wrong with ppl these days when it comes to reading. i dont want to do an if statement and i dont want to set x = y u idiot. read my posting again, i know my english is not the best but its pretty obivous what i am asking for.
April 26, 200619 yr its not too obvious to me...... its very late tho... maybe be specific as to what you are trying to accomplish, i could probably help more then.
April 26, 200619 yr Author ok, a = a Or &H80 [myg0t said: nimrod] can somebody type it in pseudo code? it seems like the &H80 is nothing more than hex value for decimal 128. i dont know why i would type: a can be a or 128 second prob: n = 8: d = 0 whats the meaning of this line in pseudocode? it doesnt make any sense to me.
April 26, 200619 yr I've only dabbled in VB (required course at college), so I'm far from an expert... a = a Xor &H80 and a = a Or &H80 both end up assigning "128" to a... an 'exclusive or' should never assign a value like that :x, what the "Or" attempts to accomplish, I have no clue a = a And &H80 displays "0", which is correct (assuming "undefined" = null/zero/false, which i'm guessing is the case here) I have no idea why the first 2 work as they do though. ^^ Where the hell did you see that in the first place?
April 26, 200619 yr asterix said: I've only dabbled in VB (required course at college), so I'm far from an expert... a = a Xor &H80 and a = a Or &H80 both end up assigning "128" to a... an 'exclusive or' should never assign a value like that :x, what the "Or" attempts to accomplish, I have no clue a = a And &H80 displays "0", which is correct (assuming "undefined" = null/zero/false, which i'm guessing is the case here) I have no idea why the first 2 work as they do though. ^^ Where the hell did you see that in the first place? who cares where its starting to confuse me as well lol
April 26, 200619 yr Author asterix said: I have no idea why the first 2 work as they do though. ^^ Where the hell did you see that in the first place? at first, thanks for the first serious and usable answer. actually im porting a vb app to pascal. so i have to deal with vb syntax which is totally new to me. most of the crap is understandable, but well these two examples give me a headache, especially the second one. i googled for a certain time and found examples of course, but not by anyone who commented his code. maybe the vb author is doing something wrong, i dunno. he claims his app works for him, it doesnt for me, thats why im redoing it =). i still need to figure the second issue out: n = 8: d = 0 WTF?
April 26, 200619 yr Is it VB6 or VB .NET? Because the logical operators (and, or, not) are handled differently in each version (according to google) As far as I can tell, and in the all the examples I've seen, that Dim a As Integer a = a Or &H80 SHOULD be equivalent to C-style code: int a; if(a == true || &H80 == true) { a = true; } else { a = false; } a has no value initially, so it is false, but &H80 is 128, which is non-zero and thus "true"... why it assigns 128 to a, I don't know. ^^ Maybe because it is an integer and not boolean? In all the examples I've seen using "Or", the coder has used a boolean variable for it. Is there any more of the code you can post, or was that all? Does a receive any values in between being declared and the assignment statement that has you confused? How is it used after the "or" operation?
April 26, 200619 yr Author this is the complete procedure: Private Sub spisend(a As Integer, d As Integer) Dim p, n, x As Integer p = Val(portsel.Text) a = a Or &H80 For x = 7 To 0 Step -1 If (a And (2 ^ x)) <> 0 Then n = 8 Else n = 0 Out p, n Out p, n + &H80 Next For x = 7 To 0 Step -1 If (d And (2 ^ x)) <> 0 Then n = 8 Else n = 0 Out p, n Out p, n + &H80 Next End Sub thx for your effort. i of course posted in vb forums as well, at the same time i posted here. i didnt get any reply yet though. man where are all the vb coders when u need them? ^^ dont waste any time on this m8, when i google about it should be enough. the second issue still gives me a headache.
