Need help with my first masm program

[jj2007]

the GlobalAlloc and LocalAlloc functions are essentially the same.

Thanks, Biterider. In the meantime, I made an interesting discovery: Nidud was partially right.

Two posts above I attached two proggies: The first one GlobalAlloc's 200MB and exits without freeing them. The second one WinExec's the first 10,000 times. No problem, tested fine on Windows 7-64.

However, if you replace GlobalAlloc with SysAllocString as shown below, the behaviour changes dramatically. Test it only with maximum caution - I had to press the power button for five seconds to get out of the mess (and I had to do that three times...).

After only 20 iterations in the loop of the launcher posted above, the system may freeze completely. I've put "may" in bold, because, ehm, it depends

Code Select Expand

include \masm32\include\masm32rt.inc

.code
start:
  mov ecx, 200000000
  push ecx
  invoke GlobalAlloc, GMEM_FIXED, ecx
  pop ecx
  .While 1
dec ecx
.Break .if Sign?
mov byte ptr [eax+ecx], "x"
  .Endw
  push eax
  invoke SysAllocString, eax
  .if !eax
print str$(rv(GetTickCount)), "..."
print LastError$()
print chr$(13)
  .endif
  call GlobalFree 
  exit
end start

[nidud]

deleted