-}
-\f
-/* Read/write functions for system call interface. */
-
-static int
-syscall_read_mem (host_callback *cb, struct cb_syscall *sc,
- unsigned long taddr, char *buf, int bytes)
-{
- SIM_DESC sd = (SIM_DESC) sc->p1;
- SIM_CPU *cpu = (SIM_CPU *) sc->p2;
-
- return sim_core_read_buffer (sd, cpu, read_map, buf, taddr, bytes);
-}
-
-static int
-syscall_write_mem (host_callback *cb, struct cb_syscall *sc,
- unsigned long taddr, const char *buf, int bytes)
-{
- SIM_DESC sd = (SIM_DESC) sc->p1;
- SIM_CPU *cpu = (SIM_CPU *) sc->p2;
-
- return sim_core_write_buffer (sd, cpu, write_map, buf, taddr, bytes);
-}
-
-/* Trap support.
- The result is the pc address to continue at. */
-
-USI
-do_trap (SIM_CPU *current_cpu, int num)
-{
- SIM_DESC sd = CPU_STATE (current_cpu);
- host_callback *cb = STATE_CALLBACK (sd);
-
-#ifdef SIM_HAVE_BREAKPOINTS
- /* Check for breakpoints "owned" by the simulator first, regardless
- of --environment. */
- if (num == 1)
- {
- /* First try sim-break.c. If it's a breakpoint the simulator "owns"
- it doesn't return. Otherwise it returns and let's us try. */
- sim_handle_breakpoint (sd, current_cpu, sim_pc_get (current_cpu));
- /* Fall through. */
- }
-#endif
-
- if (STATE_ENVIRONMENT (sd) == OPERATING_ENVIRONMENT)
- {
- /* The new pc is the trap vector entry.
- We assume there's a branch there to some handler. */
- USI new_pc = num * 4;
- return new_pc;
- }
-
- switch (num)