| /* 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, 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 |