DMA in VB
DMA, create DMA emulation In vb.
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<html>DMA. Dynamic Memory Allocation. vb is non-dma, this means that the memory address for a varable will be the same when the user reopens your program (will change if you add lots of new code).<br> this is bad because h4x0rs can steal or modify your program.<br> to make a emulation of DMA in vb, just redim a Array varable by random numbers and use whats in the middle. its simple.<br> ill give a example below <br> <br><p> 25682 ' this is a random number, really doesnt have any importance,<br> redim stack((25682 - 6) To (25682 + 8)) ' the RAMDOM numbers 6,8 are the impornant<br><p> [memory address] [place in our array]<br> 00000000 1 (-6)<br> 00000002 2 (-5)<br> 00000004 3 (-4)<br> 00000008 4 (-3)<br> 0000000A 5 (-2)<br> 0000000C 6 (-1)<br> 0000000E 7 (+0) '- Our middle numbers, this is what we want to use<br> 00000010 8 (+1)<br> 00000012 9 (+2)<br> 00000014 10 (+3)<br> 00000018 11 (+4)<br> 0000001A 12 (+5)<br> 0000001C 13 (+6)<br> 0000001E 14 (+7)<br> 00000020 15 (+8)<br> <br><br> ok the user closed the programan reloads it now creats new random numbers.<br> <br><br> ReDim stack((55431 - 2) To (55431 + 10)) ' the RANDOM numbers 2,10 are the impornant<br><p> [memory address][place in our array]<br> 00000000 1 (-2)<br> 00000002 2 (-1)<br> 00000004 3 (+0) '- Our middle numbers, this is what we want to use<br> 00000008 4 (+1)<br> 0000000A 5 (+2)<br> 0000000C 6 (+3)<br> 0000000E 7 (+4) <br> 00000010 8 (+5)<br> 00000012 9 (+6)<br> 00000014 10 (+7)<br> 00000018 11 (+8)<br> 0000001A 12 (+9)<br> 0000001C 13 (+10)<br><br> ok the first time the user opend the program the memory address for the middle (+0) is 0000000E, the next time its 00000004, <br>there its diffrent memory address! DMA<br> Heres the Complete code to use:<br><p> <br> <FONT COLOR="#00008000">'globals</font><br> <FONT COLOR="#0000ff">dim</font> stack() <FONT COLOR="#0000ff">as single</font> <FONT COLOR="#00008000">' we need tomake this a array! important</font><br> <FONT COLOR="#0000ff">dim</font> STACKNUM <FONT COLOR="#0000ff">as long</font><br> <br> <FONT COLOR="#00008000">' thecode</font><br> <FONT COLOR="#0000ff">dim</font> STACKNUMfrom <FONT COLOR="#0000ff">as byte</font><br> <FONT COLOR="#0000ff">dim</font> STACKNUMto <FONT COLOR="#0000ff">as byte</font><br> STartR:<br> Randomize<br> STACKNUM = Int(((999999) * Rnd) + 3000) <FONT COLOR="#00008000">' + 3000 - TO make sure were not 0 or some low number</font><br> STACKNUMfrom = Int(((99) * Rnd)) <FONT COLOR="#00008000">' increase 99 for more randomness, decrese for less memory useage</font><br> STACKNUMto = Int(((99) * Rnd)) <FONT COLOR="#00008000">' increase 99 for more randomness, decrese for less memory useage</font><br> <br> <FONT COLOR="#0000ff">ReDim</font> stack((STACKNUM - STACKNUMfrom) <FONT COLOR="#0000ff">To</font> (STACKNUM + STACKNUMto)) <FONT COLOR="#0000ff">As Single</font><br> <br> <FONT COLOR="#00008000">'you canuse more that just the middle number(STACKNUM), to use more use STACKNUM + whatever and STACKNUM - Whatever,<br> and use the code below tomake sure you have enuf spacein the array</font><br> <br> <FONT COLOR="#0000ff">If</font> STACKNUMto < 2 <FONT COLOR="#0000ff">Then</font> <FONT COLOR="#00008000">' STACKNUMto this is for our + STACKNUM, the number 2 is howmuch we want to use. can be used for<br> - STACKNUM too.</font><br> <FONT COLOR="#0000ff">GoTo</font> STartR<br> <FONT COLOR="#0000ff">End If</font><br> <br> <br> <b>to use this just use:</b> stack(STACKNUM) <b> or </b> <br> stack(STACKNUM + 1) <br><br><br><br> </html>
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