MSP430 Function pointers

Hi,

Not sure if this is a bug or if my code is incorrect. I am using Crossworks 2.2 for MSP430.

I have bee having problems with the following code:

static void InvokeBSL(void)
{
  typedef void (* functionpointer)(void);

  const functionpointer bsloader = (functionpointer)0x1000;

  USB_disconnect();
  USB_disable();

  // enter BSL
  bsloader();
}

I believ that the call to bsloader should cause a call to 0x001000, but this does not seem to work.

Looking at the code in the disassembler it resolves to:

static void InvokeBSL(void)
    0b12                PUSH.W    R11
--- main.c -- 295 ------------------------------------------
{
typedef void (* functionpointer)(void);
const functionpointer bsloader = (functionpointer)0x1000;
    3b400010            MOV.W     #0x1000, R11
--- main.c -- 299 ------------------------------------------
USB_disconnect();
    b013d0a4            CALLA     #0x0a4d0 <_USB_disconnect>
USB_disable();
    b01306a3            CALLA     #0x0a306 <_USB_disable>
--- main.c -- 302 ------------------------------------------
// enter BSL
bsloader();
    0f4b                MOV.W     R11, R15
    6f13                CALLA     @R15
    3b41                POP.W     R11
    1001                RETA

The CALLA @R15 generates a call to the address specified by the contents of address 0x1000.

I have checked this in the TI CCS compiler and it generates CALLA R15, and works as I would expect.

Can anyone advise on if this is actually a bug in the compiler and provide a work around please.

Regards

Roy.