summaryrefslogtreecommitdiff
path: root/sim/i960/i960-sim.h
blob: e4794daca311d88ca7faf34627a2a1fb5b7db21f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
#ifndef I960_SIM_H
#define I960_SIM_H

/* gdb register numbers */
/* Copied from gdb/config/i960/tc-i960.h.  */
#define PCW_REGNUM 32   /* process control word */
#define ACW_REGNUM 33   /* arithmetic control word */
#define TCW_REGNUM 34   /* trace control word */
#define IP_REGNUM  35   /* instruction pointer */
#define FP0_REGNUM 36   /* First floating point register */
/* Some registers have more than one name */
#define PC_REGNUM  IP_REGNUM    /* GDB refers to ip as the Program Counter */

#define GETTWI GETTSI
#define SETTWI SETTSI

/* Exception, Interrupt, and Trap addresses */
/* ??? Hack for traps.c.  */
#define EIT_TRAP_BASE_ADDR	0x40

/* Special purpose traps.  */
/* ??? Hack for traps.c.  */
#define TRAP_SYSCALL	0
#define TRAP_BREAKPOINT	1

/* Cache Purge Control (only exists on early versions of chips) */
/* ??? Hack for devices.c.  */
#define MSPR_ADDR 0xfffffff7
#define MSPR_PURGE 1

/* Cache Control Register */
/* ??? Hack for devices.c.  */
#define MCCR_ADDR 0xffffffff
#define MCCR_CP 0x80

/* Start address and length of all device support.  */
/* ??? Hack for sim-if.c.  */
#define I960_DEVICE_ADDR	0xff000000
#define I960_DEVICE_LEN		0x00ffffff

/* sim_core_attach device argument.  */
/* ??? Hack for sim-if.c.  */
extern device i960_devices;

/* FIXME: Temporary, until device support ready.  */
/* ??? Hack for devices.c.  */
struct _device { int foo; };

#endif I960_SIM_H