Initial creation of sourceware repository

sim/arm/dbg_cp.h

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+/*  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