Re: ARM Code

[Henk Jonas]

Scott Erickson wrote:

forgot to say i am using PODS, not codewarrior.

For a straight forward pnolet without globals and an object size below 
64k made with prc-tools (should be similar to PODS):

* put your arm code in one c file, first function must be

UInt32 NativeFunction(const void *emulStateP, void *userData68KP, 
Call68KFuncType *call68KFuncP)
{
        MyUserData *myUserData68KP = (MyUserData *) userData68KP;

        // call your stuff here
        
        return 0;
}

call 68k code back like this:

void ARM_SetClip (const void *emulStateP, Call68KFuncType *call68KFuncP, 
RectangleType *rP)
{
        typedef struct _tagWinSetClip
        {
                RectangleType *rP;
        } structWinSetClip;
        structWinSetClip params1;

        rP->topLeft.x = ByteSwap16(rP->topLeft.x);
        rP->topLeft.y = ByteSwap16(rP->topLeft.y);
        rP->extent.x = ByteSwap16(rP->extent.x);
        rP->extent.y = ByteSwap16(rP->extent.y);
        params1.rP = (RectangleType *) ByteSwap32(rP);

	((void)((call68KFuncP)(emulStateP, PceNativeTrapNo(sysTrapWinSetClip), 
&params1, sizeof(params1))));
}


compile it with
arm-palmos-gcc -Wall -nostartfiles -lc -ffixed-r9 -O3 -o FrameArm.o 
FrameArm.c
arm-palmos-objcopy -O binary FrameArm.o FrameArm.arm


Put the result in a custom resource.
In your main you lock the pnolet resource and call it like:


if (sysFtrNumProcessorIsARM(processor))
{
        // On ARM-Processor, call the Armlet Function
        PceNativeCall(armlet, (void *) &myUserData68K);
}


That's it.

Regards
Henk

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  Henk Jonas                                            [EMAIL PROTECTED]
  Palm OS ® certified developer

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