/* * 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 1.1.1.1 * Checkin 1999/04/16 01:34:27 */ #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