diff options
Diffstat (limited to 'sim/arm/dbg_cp.h')
-rw-r--r-- | sim/arm/dbg_cp.h | 72 |
1 files changed, 40 insertions, 32 deletions
diff --git a/sim/arm/dbg_cp.h b/sim/arm/dbg_cp.h index 9f2f93d3aa8..e59c0ec8a99 100644 --- a/sim/arm/dbg_cp.h +++ b/sim/arm/dbg_cp.h @@ -21,40 +21,48 @@ #define Dbg_Access_Readable 1 #define Dbg_Access_Writable 2 -#define Dbg_Access_CPDT 4 /* else CPRT */ +#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; +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 */]; +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)) |