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diff --git a/sim/ppc/interrupts.h b/sim/ppc/interrupts.h
deleted file mode 100644
index 93447a874d7..00000000000
--- a/sim/ppc/interrupts.h
+++ /dev/null
@@ -1,170 +0,0 @@
-/*  This file is part of the program psim.
-
-    Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
- 
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- 
-    */
-
-
-#ifndef _INTERRUPTS_H_
-#define _INTERRUPTS_H_
-
-/* Interrupts:
-
-   The code below handles two different types of interrupts.
-   Synchronous and Asynchronous.
-
-   Synchronous:
-
-   Interrupts that must immediately force either an abort or restart
-   of a current instruction are implemented by forcing an instruction
-   restart. (or to put it another way, long jump).  In looking at the
-   code it may occure to you that, for some interrupts, they could
-   return instead of restarting the cpu (eg system_call).  While true
-   (it once was like that) I've decided to make the behavour of all
-   interrupt routines roughly identical.
-
-   Because, a cpu's recorded state (ie what is in the cpu structure)
-   is allowed to lag behind the cpu's true current state (eg PC not
-   updated) sycnronous interrupt handers are parameterized with the
-   the cpu being interrupted so that, as part of moddeling the
-   interrupt, the cpu's state can be updated.
-
-   Asynchronous:
-
-   Interrupts such as reset or external exception are delivered using
-   more normal (returning) functions.  It is assumed that these
-   functions are called out side of the normal processor execution
-   cycle. */
-
-
-/* Software generated interrupts.
-
-   The below are generated by software driven events.  For instance,
-   an invalid instruction or access (virtual or physical) to an
-   invalid address */
-
-typedef enum {
-  direct_store_storage_interrupt,
-  hash_table_miss_storage_interrupt,
-  protection_violation_storage_interrupt,
-  earwax_violation_storage_interrupt,
-  segment_table_miss_storage_interrupt,
-  earwax_disabled_storage_interrupt,
-  vea_storage_interrupt,
-} storage_interrupt_reasons;
-
-
-INLINE_INTERRUPTS\
-(void) data_storage_interrupt
-(cpu *processor,
- unsigned_word cia,
- unsigned_word ea,
- storage_interrupt_reasons reason,
- int is_store);
-
-INLINE_INTERRUPTS\
-(void) instruction_storage_interrupt
-(cpu *processor,
- unsigned_word cia,
- storage_interrupt_reasons reason);
-
-INLINE_INTERRUPTS\
-(void) alignment_interrupt
-(cpu *processor,
- unsigned_word cia,
- unsigned_word ra);
-
-typedef enum {
-  floating_point_enabled_program_interrupt,
-  illegal_instruction_program_interrupt,
-  privileged_instruction_program_interrupt,
-  trap_program_interrupt,
-  optional_instruction_program_interrupt, /* subset of illegal instruction */
-  mpc860c0_instruction_program_interrupt, /* fwd br, taken but not predicted, near EO page */
-  nr_program_interrupt_reasons
-} program_interrupt_reasons;
-
-INLINE_INTERRUPTS\
-(void) program_interrupt
-(cpu *processor,
- unsigned_word cia,
- program_interrupt_reasons reason);
-
-INLINE_INTERRUPTS\
-(void) floating_point_unavailable_interrupt
-(cpu *processor,
- unsigned_word cia);
-
-INLINE_INTERRUPTS\
-(void) system_call_interrupt
-(cpu *processor,
- unsigned_word cia);
-
-INLINE_INTERRUPTS\
-(void) floating_point_assist_interrupt
-(cpu *processor,
- unsigned_word cia);
-
-INLINE_INTERRUPTS\
-(void) machine_check_interrupt
-(cpu *processor,
- unsigned_word cia);
-
-/* Hardware generated interrupts:
-
-   These asynchronous hardware generated interrupts may be called at
-   any time.  It is the responsibility of this (the interrupts) module
-   to ensure that interrupts are delivered correctly (when possible).
-   The delivery of these interrupts is controlled by the MSR's
-   external interrupt enable bit.  When ever the MSR's value is
-   changed, the processor must call the check_masked_interrupts()
-   function in case delivery has been made possible.
-
-   decrementer_interrupt is `edge' sensitive.  Multiple edges arriving
-   before the first edge has been delivered result in only one
-   interrupt.
-
-   external_interrupt is `level' sensitive.  An external interrupt
-   will only be delivered when the external interrupt port is
-   `asserted'. While interrupts are disabled, the external interrupt
-   can be asserted and then de-asserted without an interrupt
-   eventually being delivered. */
-
-enum {
-  external_interrupt_pending = 1,
-  decrementer_interrupt_pending = 2,
-};
-
-typedef struct _interrupts {
-  event_entry_tag delivery_scheduled;
-  int pending_interrupts;
-} interrupts;
-
-INLINE_INTERRUPTS\
-(void) check_masked_interrupts
-(cpu *processor);
-
-INLINE_INTERRUPTS\
-(void) decrementer_interrupt
-(cpu *processor);
-
-INLINE_INTERRUPTS\
-(void) external_interrupt
-(cpu *processor,
- int is_asserted);
-
-#endif /* _INTERRUPTS_H_ */