summaryrefslogtreecommitdiff
path: root/sim/arm/dbg_cp.h
diff options
context:
space:
mode:
Diffstat (limited to 'sim/arm/dbg_cp.h')
-rw-r--r--sim/arm/dbg_cp.h62
1 files changed, 62 insertions, 0 deletions
diff --git a/sim/arm/dbg_cp.h b/sim/arm/dbg_cp.h
new file mode 100644
index 00000000000..9f2f93d3aa8
--- /dev/null
+++ b/sim/arm/dbg_cp.h
@@ -0,0 +1,62 @@
+/* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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