This commit is contained in:
Markus Fröschle
2015-10-13 05:14:06 +00:00
parent 35d879b698
commit d118796306

View File

@@ -236,13 +236,18 @@ void remove_handler(void)
*trap_0_vector = (uint32_t) std_exc_vec;
}
/*
* trap #0 entry point
*
* this is used to retrieve the driver table that gets exposed to the OS by BaS
*/
void __attribute__((interrupt)) get_bas_drivers(void)
{
__asm__ __volatile(
/*
* sp should now point to the next instruction after the trap
* The trap itself is 2 bytes, the four bytes before that must
* read '_BAS' or we are not meant by this call
* read '_BAS', otherwise we are not meant by this call
*/
" move.l a0,-(sp) \n\t" // save registers
" move.l d0,-(sp) \n\t"