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// OBSOLETE /* Parameters for target machine Intel 960, for GDB, the GNU debugger.

// OBSOLETE 

// OBSOLETE    Copyright 1990, 1991, 1993, 1994, 1996, 1998, 1999, 2000, 2002 Free

// OBSOLETE    Software Foundation, Inc.

// OBSOLETE 

// OBSOLETE    Contributed by Intel Corporation.

// OBSOLETE    This file is part of GDB.

// OBSOLETE 

// OBSOLETE    This program is free software; you can redistribute it and/or modify

// OBSOLETE    it under the terms of the GNU General Public License as published by

// OBSOLETE    the Free Software Foundation; either version 2 of the License, or

// OBSOLETE    (at your option) any later version.

// OBSOLETE 

// OBSOLETE    This program is distributed in the hope that it will be useful,

// OBSOLETE    but WITHOUT ANY WARRANTY; without even the implied warranty of

// OBSOLETE    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// OBSOLETE    GNU General Public License for more details.

// OBSOLETE 

// OBSOLETE    You should have received a copy of the GNU General Public License

// OBSOLETE    along with this program; if not, write to the Free Software

// OBSOLETE    Foundation, Inc., 59 Temple Place - Suite 330,

// OBSOLETE    Boston, MA 02111-1307, USA.  */

// OBSOLETE 

// OBSOLETE /* Definitions to target GDB to any i960.  */

// OBSOLETE 

// OBSOLETE #ifndef I80960

// OBSOLETE #define I80960

// OBSOLETE #endif

// OBSOLETE 

// OBSOLETE #include "doublest.h"

// OBSOLETE 

// OBSOLETE /* Hook for the SYMBOL_CLASS of a parameter when decoding DBX symbol

// OBSOLETE    information.  In the i960, parameters can be stored as locals or as

// OBSOLETE    args, depending on the type of the debug record.

// OBSOLETE 

// OBSOLETE    From empirical observation, gcc960 uses N_LSYM to indicate

// OBSOLETE    arguments passed in registers and then copied immediately

// OBSOLETE    to the frame, and N_PSYM to indicate arguments passed in a

// OBSOLETE    g14-relative argument block.  */

// OBSOLETE 

// OBSOLETE #define     DBX_PARM_SYMBOL_CLASS(type) ((type == N_LSYM)? LOC_LOCAL_ARG: LOC_ARG)

// OBSOLETE 

// OBSOLETE /* Offset from address of function to start of its code.

// OBSOLETE    Zero on most machines.  */

// OBSOLETE 

// OBSOLETE #define FUNCTION_START_OFFSET 0

// OBSOLETE 

// OBSOLETE /* Advance ip across any function entry prologue instructions

// OBSOLETE    to reach some "real" code.  */

// OBSOLETE 

// OBSOLETE #define SKIP_PROLOGUE(ip)   (i960_skip_prologue (ip))

// OBSOLETE extern CORE_ADDR i960_skip_prologue ();

// OBSOLETE 

// OBSOLETE /* Immediately after a function call, return the saved ip.

// OBSOLETE    Can't always go through the frames for this because on some machines

// OBSOLETE    the new frame is not set up until the new function

// OBSOLETE    executes some instructions.  */

// OBSOLETE 

// OBSOLETE #define SAVED_PC_AFTER_CALL(frame) (saved_pc_after_call (frame))

// OBSOLETE extern CORE_ADDR saved_pc_after_call ();

// OBSOLETE 

// OBSOLETE /* Stack grows upward */

// OBSOLETE 

// OBSOLETE #define INNER_THAN(lhs,rhs) ((lhs) > (rhs))

// OBSOLETE 

// OBSOLETE /* Say how long (ordinary) registers are.  This is a piece of bogosity

// OBSOLETE    used in push_word and a few other places; REGISTER_RAW_SIZE is the

// OBSOLETE    real way to know how big a register is.  */

// OBSOLETE 

// OBSOLETE #define REGISTER_SIZE 4

// OBSOLETE 

// OBSOLETE /* Number of machine registers */

// OBSOLETE #define NUM_REGS 40

// OBSOLETE 

// OBSOLETE /* Initializer for an array of names of registers.

// OBSOLETE    There should be NUM_REGS strings in this initializer.  */

// OBSOLETE 

// OBSOLETE #define REGISTER_NAMES { \

// OBSOLETE     /*  0 */ "pfp", "sp",  "rip", "r3",  "r4",  "r5",  "r6",  "r7", \

// OBSOLETE     /*  8 */ "r8",  "r9",  "r10", "r11", "r12", "r13", "r14", "r15",\

// OBSOLETE     /* 16 */ "g0",  "g1",  "g2",  "g3",  "g4",  "g5",  "g6",  "g7", \

// OBSOLETE     /* 24 */ "g8",  "g9",  "g10", "g11", "g12", "g13", "g14", "fp", \

// OBSOLETE     /* 32 */ "pcw", "ac",  "tc",  "ip",  "fp0", "fp1", "fp2", "fp3",\

// OBSOLETE }

// OBSOLETE 

// OBSOLETE /* Register numbers of various important registers (used to index

// OBSOLETE    into arrays of register names and register values).  */

// OBSOLETE 

// OBSOLETE #define R0_REGNUM   0               /* First local register           */

// OBSOLETE #define SP_REGNUM   1               /* Contains address of top of stack */

// OBSOLETE #define RIP_REGNUM  2               /* Return instruction pointer (local r2) */

// OBSOLETE #define R15_REGNUM 15               /* Last local register            */

// OBSOLETE #define G0_REGNUM  16               /* First global register  */

// OBSOLETE #define G13_REGNUM 29               /* g13 - holds struct return address */

// OBSOLETE #define G14_REGNUM 30               /* g14 - ptr to arg block / leafproc return address */

// OBSOLETE #define FP_REGNUM  31               /* Contains address of executing stack frame */

// OBSOLETE #define     PCW_REGNUM 32           /* process control word */

// OBSOLETE #define     ACW_REGNUM 33           /* arithmetic control word */

// OBSOLETE #define     TCW_REGNUM 34           /* trace control word */

// OBSOLETE #define IP_REGNUM  35               /* instruction pointer */

// OBSOLETE #define FP0_REGNUM 36               /* First floating point register */

// OBSOLETE 

// OBSOLETE /* Some registers have more than one name */

// OBSOLETE 

// OBSOLETE #define PC_REGNUM  IP_REGNUM        /* GDB refers to ip as the Program Counter */

// OBSOLETE #define PFP_REGNUM R0_REGNUM        /* Previous frame pointer */

// OBSOLETE 

// OBSOLETE /* Total amount of space needed to store our copies of the machine's

// OBSOLETE    register state, the array `registers'.  */

// OBSOLETE #define REGISTER_BYTES ((36*4) + (4*10))

// OBSOLETE 

// OBSOLETE /* Index within `registers' of the first byte of the space for register N.  */

// OBSOLETE 

// OBSOLETE #define REGISTER_BYTE(N) ( (N) < FP0_REGNUM ? \

// OBSOLETE                             (4*(N)) : ((10*(N)) - (6*FP0_REGNUM)) )

// OBSOLETE 

// OBSOLETE /* The i960 has register windows, sort of.  */

// OBSOLETE 

// OBSOLETE extern void i960_get_saved_register (char *raw_buffer,

// OBSOLETE                                  int *optimized,

// OBSOLETE                                  CORE_ADDR *addrp,

// OBSOLETE                                  struct frame_info *frame,

// OBSOLETE                                  int regnum,

// OBSOLETE                                  enum lval_type *lval);

// OBSOLETE 

// OBSOLETE #define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \

// OBSOLETE   i960_get_saved_register(raw_buffer, optimized, addrp, frame, regnum, lval)

// OBSOLETE 

// OBSOLETE 

// OBSOLETE /* Number of bytes of storage in the actual machine representation

// OBSOLETE    for register N.  On the i960, all regs are 4 bytes except for floating

// OBSOLETE    point, which are 10.  NINDY only sends us 8 byte values for these,

// OBSOLETE    which is a pain, but VxWorks handles this correctly, so we must.  */

// OBSOLETE 

// OBSOLETE #define REGISTER_RAW_SIZE(N)                ( (N) < FP0_REGNUM ? 4 : 10 )

// OBSOLETE 

// OBSOLETE /* Number of bytes of storage in the program's representation for register N. */

// OBSOLETE 

// OBSOLETE #define REGISTER_VIRTUAL_SIZE(N)    ( (N) < FP0_REGNUM ? 4 : 8 )

// OBSOLETE 

// OBSOLETE /* Largest value REGISTER_RAW_SIZE can have.  */

// OBSOLETE 

// OBSOLETE #define MAX_REGISTER_RAW_SIZE 10

// OBSOLETE 

// OBSOLETE /* Largest value REGISTER_VIRTUAL_SIZE can have.  */

// OBSOLETE 

// OBSOLETE #define MAX_REGISTER_VIRTUAL_SIZE 8

// OBSOLETE 

// OBSOLETE #include "floatformat.h"

// OBSOLETE 

// OBSOLETE #define TARGET_LONG_DOUBLE_FORMAT &floatformat_i960_ext

// OBSOLETE 

// OBSOLETE /* Return the GDB type object for the "standard" data type

// OBSOLETE    of data in register N.  */

// OBSOLETE 

// OBSOLETE struct type *i960_register_type (int regnum);

// OBSOLETE #define REGISTER_VIRTUAL_TYPE(N) i960_register_type (N)

// OBSOLETE 

// OBSOLETE /* Macros for understanding function return values... */

// OBSOLETE 

// OBSOLETE /* Does the specified function use the "struct returning" convention

// OBSOLETE    or the "value returning" convention?  The "value returning" convention

// OBSOLETE    almost invariably returns the entire value in registers.  The

// OBSOLETE    "struct returning" convention often returns the entire value in

// OBSOLETE    memory, and passes a pointer (out of or into the function) saying

// OBSOLETE    where the value (is or should go).

// OBSOLETE 

// OBSOLETE    Since this sometimes depends on whether it was compiled with GCC,

// OBSOLETE    this is also an argument.  This is used in call_function to build a

// OBSOLETE    stack, and in value_being_returned to print return values.

// OBSOLETE 

// OBSOLETE    On i960, a structure is returned in registers g0-g3, if it will fit.

// OBSOLETE    If it's more than 16 bytes long, g13 pointed to it on entry.  */

// OBSOLETE 

// OBSOLETE extern use_struct_convention_fn i960_use_struct_convention;

// OBSOLETE #define USE_STRUCT_CONVENTION(gcc_p, type) i960_use_struct_convention (gcc_p, type)

// OBSOLETE 

// OBSOLETE /* Extract from an array REGBUF containing the (raw) register state

// OBSOLETE    a function return value of type TYPE, and copy that, in virtual format,

// OBSOLETE    into VALBUF.  This is only called if USE_STRUCT_CONVENTION for this

// OBSOLETE    type is 0.

// OBSOLETE 

// OBSOLETE    On the i960 we just take as many bytes as we need from G0 through G3.  */

// OBSOLETE 

// OBSOLETE #define DEPRECATED_EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \

// OBSOLETE     memcpy(VALBUF, REGBUF+REGISTER_BYTE(G0_REGNUM), TYPE_LENGTH (TYPE))

// OBSOLETE 

// OBSOLETE /* If USE_STRUCT_CONVENTION produces a 1, 

// OBSOLETE    extract from an array REGBUF containing the (raw) register state

// OBSOLETE    the address in which a function should return its structure value,

// OBSOLETE    as a CORE_ADDR (or an expression that can be used as one).

// OBSOLETE 

// OBSOLETE    Address of where to put structure was passed in in global

// OBSOLETE    register g13 on entry.  God knows what's in g13 now.  The

// OBSOLETE    (..., 0) below is to make it appear to return a value, though

// OBSOLETE    actually all it does is call error().  */

// OBSOLETE 

// OBSOLETE #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \

// OBSOLETE    (error("Don't know where large structure is returned on i960"), 0)

// OBSOLETE 

// OBSOLETE /* Write into appropriate registers a function return value

// OBSOLETE    of type TYPE, given in virtual format, for "value returning" functions.

// OBSOLETE 

// OBSOLETE    For 'return' command:  not (yet) implemented for i960.  */

// OBSOLETE 

// OBSOLETE #define STORE_RETURN_VALUE(TYPE,VALBUF) \

// OBSOLETE     error ("Returning values from functions is not implemented in i960 gdb")

// OBSOLETE 

// OBSOLETE /* Store the address of the place in which to copy the structure the

// OBSOLETE    subroutine will return.  This is called from call_function. */

// OBSOLETE 

// OBSOLETE #define STORE_STRUCT_RETURN(ADDR, SP) \

// OBSOLETE     error ("Returning values from functions is not implemented in i960 gdb")

// OBSOLETE 

// OBSOLETE /* Describe the pointer in each stack frame to the previous stack frame

// OBSOLETE    (its caller).  */

// OBSOLETE 

// OBSOLETE /* FRAME_CHAIN takes a frame's nominal address

// OBSOLETE    and produces the frame's chain-pointer.

// OBSOLETE 

// OBSOLETE    However, if FRAME_CHAIN_VALID returns zero,

// OBSOLETE    it means the given frame is the outermost one and has no caller.  */

// OBSOLETE 

// OBSOLETE /* We cache information about saved registers in the frame structure,

// OBSOLETE    to save us from having to re-scan function prologues every time

// OBSOLETE    a register in a non-current frame is accessed.  */

// OBSOLETE 

// OBSOLETE #define EXTRA_FRAME_INFO    \

// OBSOLETE     struct frame_saved_regs *fsr;   \

// OBSOLETE     CORE_ADDR arg_pointer;

// OBSOLETE 

// OBSOLETE /* Zero the frame_saved_regs pointer when the frame is initialized,

// OBSOLETE    so that FRAME_FIND_SAVED_REGS () will know to allocate and

// OBSOLETE    initialize a frame_saved_regs struct the first time it is called.

// OBSOLETE    Set the arg_pointer to -1, which is not valid; 0 and other values

// OBSOLETE    indicate real, cached values.  */

// OBSOLETE 

// OBSOLETE #define INIT_EXTRA_FRAME_INFO(fromleaf, fi) \

// OBSOLETE     ((fi)->fsr = 0, (fi)->arg_pointer = -1)

// OBSOLETE 

// OBSOLETE /* On the i960, we get the chain pointer by reading the PFP saved

// OBSOLETE    on the stack and clearing the status bits.  */

// OBSOLETE 

// OBSOLETE #define FRAME_CHAIN(thisframe) \

// OBSOLETE   (read_memory_integer (FRAME_FP(thisframe), 4) & ~0xf)

// OBSOLETE 

// OBSOLETE /* FRAME_CHAIN_VALID returns zero if the given frame is the outermost one

// OBSOLETE    and has no caller.

// OBSOLETE 

// OBSOLETE    On the i960, each various target system type must define FRAME_CHAIN_VALID,

// OBSOLETE    since it differs between NINDY and VxWorks, the two currently supported

// OBSOLETE    targets types.  We leave it undefined here.  */

// OBSOLETE 

// OBSOLETE 

// OBSOLETE /* A macro that tells us whether the function invocation represented

// OBSOLETE    by FI does not have a frame on the stack associated with it.  If it

// OBSOLETE    does not, FRAMELESS is set to 1, else 0.  */

// OBSOLETE 

// OBSOLETE CORE_ADDR leafproc_return (CORE_ADDR ip);

// OBSOLETE #define FRAMELESS_FUNCTION_INVOCATION(FI) \

// OBSOLETE   (leafproc_return ((FI)->pc) != 0)

// OBSOLETE 

// OBSOLETE /* Note that in the i960 architecture the return pointer is saved in the

// OBSOLETE    *caller's* stack frame.

// OBSOLETE 

// OBSOLETE    Make sure to zero low-order bits because of bug in 960CA A-step part

// OBSOLETE    (instruction addresses should always be word-aligned anyway).  */

// OBSOLETE 

// OBSOLETE #define FRAME_SAVED_PC(frame) \

// OBSOLETE                     ((read_memory_integer(FRAME_CHAIN(frame)+8,4)) & ~3)

// OBSOLETE 

// OBSOLETE /* On the i960, FRAME_ARGS_ADDRESS should return the value of

// OBSOLETE    g14 as passed into the frame, if known.  We need a function for this.

// OBSOLETE    We cache this value in the frame info if we've already looked it up.  */

// OBSOLETE 

// OBSOLETE #define FRAME_ARGS_ADDRESS(fi)      \

// OBSOLETE   (((fi)->arg_pointer != -1)? (fi)->arg_pointer: frame_args_address (fi, 0))

// OBSOLETE extern CORE_ADDR frame_args_address ();             /* i960-tdep.c */

// OBSOLETE 

// OBSOLETE /* This is the same except it should return 0 when

// OBSOLETE    it does not really know where the args are, rather than guessing.

// OBSOLETE    This value is not cached since it is only used infrequently.  */

// OBSOLETE 

// OBSOLETE #define     FRAME_ARGS_ADDRESS_CORRECT(fi)  (frame_args_address (fi, 1))

// OBSOLETE 

// OBSOLETE #define FRAME_LOCALS_ADDRESS(fi)    (fi)->frame

// OBSOLETE 

// OBSOLETE /* Set NUMARGS to the number of args passed to a frame.

// OBSOLETE    Can return -1, meaning no way to tell.  */

// OBSOLETE 

// OBSOLETE #define FRAME_NUM_ARGS(fi)  (-1)

// OBSOLETE 

// OBSOLETE /* Return number of bytes at start of arglist that are not really args.  */

// OBSOLETE 

// OBSOLETE #define FRAME_ARGS_SKIP 0

// OBSOLETE 

// OBSOLETE /* Produce the positions of the saved registers in a stack frame.  */

// OBSOLETE 

// OBSOLETE #define FRAME_FIND_SAVED_REGS(frame_info_addr, sr) \

// OBSOLETE     frame_find_saved_regs (frame_info_addr, &sr)

// OBSOLETE extern void frame_find_saved_regs ();       /* See i960-tdep.c */

// OBSOLETE 

// OBSOLETE /* Things needed for making calls to functions in the inferior process */

// OBSOLETE 

// OBSOLETE /* Push an empty stack frame, to record the current ip, etc.

// OBSOLETE 

// OBSOLETE    Not (yet?) implemented for i960.  */

// OBSOLETE 

// OBSOLETE #define PUSH_DUMMY_FRAME    \

// OBSOLETE error("Function calls into the inferior process are not supported on the i960")

// OBSOLETE 

// OBSOLETE /* Discard from the stack the innermost frame, restoring all registers.  */

// OBSOLETE 

// OBSOLETE 

// OBSOLETE void i960_pop_frame (void);

// OBSOLETE #define POP_FRAME \

// OBSOLETE     i960_pop_frame ()

// OBSOLETE 

// OBSOLETE 

// OBSOLETE /* This sequence of words is the instructions

// OBSOLETE 

// OBSOLETE    callx 0x00000000

// OBSOLETE    fmark

// OBSOLETE  */

// OBSOLETE 

// OBSOLETE /* #define CALL_DUMMY { 0x86003000, 0x00000000, 0x66003e00 } */

// OBSOLETE 

// OBSOLETE                                                                                                                                                         /* #define CALL_DUMMY_START_OFFSET 0 *//* Start execution at beginning of dummy */

// OBSOLETE 

// OBSOLETE /* Indicate that we don't support calling inferior child functions.  */

// OBSOLETE 

// OBSOLETE #undef CALL_DUMMY

// OBSOLETE 

// OBSOLETE /* Insert the specified number of args and function address

// OBSOLETE    into a call sequence of the above form stored at 'dummyname'.

// OBSOLETE 

// OBSOLETE    Ignore arg count on i960.  */

// OBSOLETE 

// OBSOLETE /* #define FIX_CALL_DUMMY(dummyname, fun, nargs) *(((int *)dummyname)+1) = fun */

// OBSOLETE 

// OBSOLETE #undef FIX_CALL_DUMMY

// OBSOLETE 

// OBSOLETE 

// OBSOLETE /* Interface definitions for kernel debugger KDB */

// OBSOLETE /* (Not relevant to i960.) */