Hpw do I change the startup adr of an app

I'm not sure what your startup code does, but there are a few

things you might want to double-check:

1. If your startup code copies the kernel into SDRAM, make sure

you flush the data cache, invalidate the instruction cache, sync,

then flush the pipeline. There's a little routine that does such

below.

2. Make sure interrupts are disabled.

3. Make sure you have your stack setup.

4. Check the kernel startup code to make sure its relocation

implementation isn't broken. I haven't looked closely at it

yet, but some (new) implementations don't do this too

well ... especially if there is an overlap of source and

destination locations ;-)

Regards,

--Scott

C Interface:
extern void flush_cache (void *p, unsigned len);
         p    -pointer to base of copied code.
         len -length (bytes) of copied code.
--------------------------------------------------------------------
    .global flush_cache
    
flush_cache:
    add    r5, r5, r4
    mov    r9, r4
    mov    r10, r5
    
    /* Flush data cache */
    movhi    r8, %hi(DCACHELINE_SIZE)
    ori    r8, r8, %lo(DCACHELINE_SIZE)
0:    flushd    0(r4)
    add    r4, r4, r8
    bltu    r4, r5, 0b
    
    /* Invalidateinstruction cache */
    mov    r4, r9
    mov    r5, r10
    movhi    r8, %hi(ICACHELINE_SIZE)
    ori    r8, r8, %lo(ICACHELINE_SIZE)
1:    flushi    r4
    add    r4, r4, r8
    bltu    r4, r5, 1b
    /* sync and flush the pipeline */
    sync
    flushp
    ret