62 lines
1.9 KiB
C
62 lines
1.9 KiB
C
/*
|
|
* Copyright (C) 1995 Advanced RISC Machines Limited. All rights reserved.
|
|
*
|
|
* This software may be freely used, copied, modified, and distributed
|
|
* provided that the above copyright notice is preserved in all copies of the
|
|
* software.
|
|
*/
|
|
|
|
/*
|
|
* ARM symbolic debugger toolbox: dbg_cp.h
|
|
*/
|
|
|
|
/*
|
|
* RCS $Revision$
|
|
* Checkin $Date$
|
|
*/
|
|
|
|
#ifndef Dbg_CP__h
|
|
|
|
#define Dbg_CP__h
|
|
|
|
#define Dbg_Access_Readable 1
|
|
#define Dbg_Access_Writable 2
|
|
#define Dbg_Access_CPDT 4 /* else CPRT */
|
|
|
|
typedef struct {
|
|
unsigned short rmin, rmax;
|
|
/* a single description can be used for a range of registers with
|
|
the same properties *accessed via CPDT instructions*
|
|
*/
|
|
unsigned char nbytes; /* size of register */
|
|
unsigned char access; /* see above (Access_xxx) */
|
|
union {
|
|
struct { /* CPDT instructions do not allow the coprocessor much freedom:
|
|
only bit 22 ('N') and 12-15 ('CRd') are free for the
|
|
coprocessor to use as it sees fit.
|
|
*/
|
|
unsigned char nbit;
|
|
unsigned char rdbits;
|
|
} cpdt;
|
|
struct { /* CPRT instructions have much more latitude. The bits fixed
|
|
by the ARM are 24..31 (condition mask & opcode)
|
|
20 (direction)
|
|
8..15 (cpnum, arm register)
|
|
4 (CPRT not CPDO)
|
|
leaving 14 bits free to the coprocessor (fortunately
|
|
falling within two bytes).
|
|
*/
|
|
unsigned char read_b0, read_b1,
|
|
write_b0, write_b1;
|
|
} cprt;
|
|
} accessinst;
|
|
} Dbg_CoProRegDesc;
|
|
|
|
struct Dbg_CoProDesc {
|
|
int entries;
|
|
Dbg_CoProRegDesc regdesc[1/* really nentries */];
|
|
};
|
|
|
|
#define Dbg_CoProDesc_Size(n) (sizeof(struct Dbg_CoProDesc) + ((n)-1)*sizeof(Dbg_CoProRegDesc))
|
|
|
|
#endif
|