Hello, Lionel.
on 99.11.9 6:18 PM, Lionel Bonnet at [EMAIL PROTECTED] wrote:
> The 32K limit doesn't really exists on PowerPC : in each application memory
> zone, you have the stack zone and the heap zone.There is a default stack
> zone(32 K)but if you want to increase it, you must change the limit of the
> heap, and so the limit of the stack.
> So you must insert this code at the very beginning of the application :
>
> stkNeeded=StackNeeded();
> if (stkNeeded > StackSpace())
> {
> SetApplLimit((Ptr) ((long) GetApplLimit() - stkNeeded + StackSpace()));
> }
> heapSize = (long) GetApplLimit() - (long) ApplicationZone();
I know, of course, stack meaning, though, this is not such a problem, I
think. We can easily increase stack size with project settings -> target ->
PPC target -> stack size (default 64K) in CW.
I wrote following test code, but could not compile. The line,
char chunk[64*1024L];
is smaller than 128*1024L, and there may be enough remnant of stack,
however, CW tells me "local data is larger than 32K". I do think, locak data
is not equal to stack. Local data may mean local variables in specific
funcion.
How can I break though this limit? I ask this in general macintosh
programming mailing list, people says, "There is no way. Make it global or
static."
Do I misunderstand?
TIA.
#include <string.h> /* for memset */
#include <Types.h>
#include <Memory.h>
#include <Quickdraw.h>
#include <Fonts.h>
#include <Events.h>
#include <Menus.h>
#include <Windows.h>
#include <TextEdit.h>
#include <Dialogs.h>
#include <OSUtils.h>
#include <ToolUtils.h>
#include <SegLoad.h>
#include <Sound.h>
void Initialize(void);
int main(void)
{
long stkNeeded /*, heapSize */;
Initialize();
stkNeeded = 128*1024L; /* StackNeeded(); */
if (stkNeeded > StackSpace())
{
SetApplLimit((Ptr) ((long) GetApplLimit() - stkNeeded +
StackSpace()));
}
/* heapSize = (long) GetApplLimit() - (long) ApplicationZone(); */
do {
} while (!Button());
return 0;
}
void Initialize(void)
{
InitGraf(&qd.thePort);
InitFonts();
InitWindows();
InitMenus();
TEInit();
InitDialogs(nil);
InitCursor();
}
void foo(void)
{
char chunk[64*1024L];
memset(chunk, 0x00, 64*1024L);
}
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