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[/] [or1k/] [trunk/] [gdb-5.0/] [gdb/] [rdi-share/] [dbg_cp.h] - Blame information for rev 1765

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1 106 markom
/*
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 * Copyright (C) 1995 Advanced RISC Machines Limited. All rights reserved.
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 *
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 * This software may be freely used, copied, modified, and distributed
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 * provided that the above copyright notice is preserved in all copies of the
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 * software.
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 */
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/*
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 * ARM symbolic debugger toolbox: dbg_cp.h
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 */
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/*
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 * RCS $Revision: 1.1.1.1 $
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 * Checkin $Date: 2001-05-18 11:16:38 $
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 */
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#ifndef Dbg_CP__h
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#define Dbg_CP__h
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#define Dbg_Access_Readable  1
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#define Dbg_Access_Writable  2
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#define Dbg_Access_CPDT      4 /* else CPRT */
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typedef struct {
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    unsigned short rmin, rmax;
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    /* a single description can be used for a range of registers with
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       the same properties *accessed via CPDT instructions*
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     */
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    unsigned char nbytes;   /* size of register */
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    unsigned char access;   /* see above (Access_xxx) */
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    union {
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       struct { /* CPDT instructions do not allow the coprocessor much freedom:
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                   only bit 22 ('N') and 12-15 ('CRd') are free for the
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                   coprocessor to use as it sees fit.
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                 */
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                unsigned char nbit;
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                unsigned char rdbits;
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              } cpdt;
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       struct { /* CPRT instructions have much more latitude.  The bits fixed
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                   by the ARM are  24..31 (condition mask & opcode)
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                                   20 (direction)
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                                   8..15 (cpnum, arm register)
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                                   4 (CPRT not CPDO)
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                   leaving 14 bits free to the coprocessor (fortunately
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                   falling within two bytes).
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                 */
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                unsigned char read_b0, read_b1,
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                              write_b0, write_b1;
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              } cprt;
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    } accessinst;
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} Dbg_CoProRegDesc;
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struct Dbg_CoProDesc {
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    int entries;
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    Dbg_CoProRegDesc regdesc[1/* really nentries */];
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};
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#define Dbg_CoProDesc_Size(n) (sizeof(struct Dbg_CoProDesc) + ((n)-1)*sizeof(Dbg_CoProRegDesc))
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#endif

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