63 lines
2.4 KiB
C
63 lines
2.4 KiB
C
|
/* dbg_cp.h -- ARMulator debug interface: ARM6 Instruction Emulator.
|
||
|
|
Copyright (C) 1994 Advanced RISC Machines Ltd.
|
||
|
|
|
||
|
|
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
||
|
|
|
||
|
|
#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
|