/*
* Set up extended trap context and call handler function
*/
static void trap_HandleExtendedTrap (TrapHandler handler_func, int has_retval)
{
struct TrapContext *context = xcalloc (TrapContext, 1);
if (context) {
uae_sem_init (&context->switch_to_trap_sem, 0, 0);
uae_sem_init (&context->switch_to_emu_sem, 0, 0);
context->trap_handler = handler_func;
context->trap_has_retval = has_retval;
//context->saved_regs = regs;
copytocpucontext (&context->saved_regs);
/* Start thread to handle new trap context. */
uae_start_thread_fast (trap_thread, (void *)context, &context->thread);
/* Switch to trap context to begin execution of
* trap handler function.
*/
uae_sem_post (&context->switch_to_trap_sem);
/* Wait for trap context to switch back to us.
*
* It'll do this when the trap handler is done - or when
* the handler wants to call 68k code. */
uae_sem_wait (&context->switch_to_emu_sem);
}
}
/*
* Set up extended trap context and call handler function
*/
static void trap_HandleExtendedTrap (TrapHandler handler_func, int has_retval)
{
struct ExtendedTrapContext *context = (struct ExtendedTrapContext *) calloc (1, sizeof (ExtendedTrapContext));
if (context) {
uae_sem_init (&context->switch_to_trap_sem, 0, 0);
uae_sem_init (&context->switch_to_emu_sem, 0, 0);
context->trap_handler = handler_func;
context->trap_has_retval = has_retval;
context->regs = regs; /* Working copy of regs */
context->saved_regs = regs; /* Copy of regs to be restored when trap is done */
/* Start thread to handle new trap context. */
uae_start_thread_fast (trap_thread, (void *)context, &context->thread);
/* Switch to trap context to begin execution of
* trap handler function.
*/
uae_sem_post (&context->switch_to_trap_sem);
/* Wait for trap context to switch back to us.
*
* It'll do this when the trap handler is done - or when
* the handler wants to call 68k code. */
uae_sem_wait (&context->switch_to_emu_sem);
/* Use trap's modified 68k state. This will reset the PC, so that
* execution will resume at either the m68k call handler or the
* the exit handler. */
regs = context->regs;
}
}
/*
* Initialize trap mechanism.
*/
void init_traps(void)
{
trap_count = 0;
if (!trap_thread_id[0] && trap_is_indirect()) {
for (int i = 0; i < TRAP_THREADS; i++) {
init_comm_pipe(&trap_thread_pipe[i], 100, 1);
hardware_trap_kill[i] = 1;
uae_start_thread_fast(hardware_trap_thread, (void *)i, &trap_thread_id[i]);
}
}
}