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[/] [or1k/] [trunk/] [gdb-5.0/] [gdb/] [config/] [i386/] [tm-ptx.h] - Blame information for rev 1765

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1 106 markom
/* Target machine definitions for GDB on a Sequent Symmetry under ptx
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   with Weitek 1167 and i387 support.
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   Copyright 1986, 1987, 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
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   Symmetry version by Jay Vosburgh (fubar@sequent.com).
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   This file is part of GDB.
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   This program is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 2 of the License, or
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   (at your option) any later version.
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   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program; if not, write to the Free Software
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   Foundation, Inc., 59 Temple Place - Suite 330,
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   Boston, MA 02111-1307, USA.  */
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#ifndef TM_PTX_H
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#define TM_PTX_H 1
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/* I don't know if this will work for cross-debugging, even if you do get
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   a copy of the right include file.  */
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#include <sys/reg.h>
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#ifdef SEQUENT_PTX4
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#include "i386/tm-i386v4.h"
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#else /* !SEQUENT_PTX4 */
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#include "i386/tm-i386v.h"
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#endif
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/* Number of traps that happen between exec'ing the shell to run an
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   inferior, and when we finally get to the inferior code.  This is 2
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   on most implementations. Here we have to undo what tm-i386v.h gave
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   us and restore the default. */
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#undef START_INFERIOR_TRAPS_EXPECTED
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#define START_INFERIOR_TRAPS_EXPECTED 2
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/* Amount PC must be decremented by after a breakpoint.  This is often the
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   number of bytes in BREAKPOINT but not always (such as now). */
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#undef DECR_PC_AFTER_BREAK
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#define DECR_PC_AFTER_BREAK 0
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#if 0
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-- -this code can 't be used unless we know we are running native,
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since it uses host specific ptrace calls.
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/* code for 80387 fpu.  Functions are from i386-dep.c, copied into
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 * symm-dep.c.
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 */
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#define FLOAT_INFO { i386_float_info(); }
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#endif
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/* Number of machine registers */
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#undef  NUM_REGS
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#define NUM_REGS 49
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/* Initializer for an array of names of registers.  There should be at least
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   NUM_REGS strings in this initializer.  Any excess ones are simply ignored.
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   The order of the first 8 registers must match the compiler's numbering
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   scheme (which is the same as the 386 scheme) and also regmap in the various
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   *-nat.c files. */
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#undef  REGISTER_NAMES
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#define REGISTER_NAMES { "eax",  "ecx",    "edx",  "ebx",  \
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                         "esp",  "ebp",    "esi",  "edi",  \
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                         "eip",  "eflags", "st0",  "st1",  \
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                         "st2",  "st3",    "st4",  "st5",  \
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                         "st6",  "st7",    "fp1",  "fp2",  \
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                         "fp3",  "fp4",    "fp5",  "fp6",  \
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                         "fp7",  "fp8",    "fp9",  "fp10", \
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                         "fp11", "fp12",   "fp13", "fp14", \
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                         "fp15", "fp16",   "fp17", "fp18", \
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                         "fp19", "fp20",   "fp21", "fp22", \
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                         "fp23", "fp24",   "fp25", "fp26", \
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                         "fp27", "fp28",   "fp29", "fp30", \
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                         "fp31" }
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/* Register numbers of various important registers.
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   Note that some of these values are "real" register numbers,
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   and correspond to the general registers of the machine,
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   and some are "phony" register numbers which are too large
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   to be actual register numbers as far as the user is concerned
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   but do serve to get the desired values when passed to read_register.  */
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#define EAX_REGNUM      0
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#define ECX_REGNUM      1
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#define EDX_REGNUM      2
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#define EBX_REGNUM      3
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#define ESP_REGNUM      4
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#define EBP_REGNUM      5
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#define ESI_REGNUM      6
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#define EDI_REGNUM      7
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#define EIP_REGNUM      8
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#define EFLAGS_REGNUM   9
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#define ST0_REGNUM      10
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#define ST1_REGNUM      11
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#define ST2_REGNUM      12
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#define ST3_REGNUM      13
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#define ST4_REGNUM      14
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#define ST5_REGNUM      15
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#define ST6_REGNUM      16
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#define ST7_REGNUM      17
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#define FP1_REGNUM 18           /* first 1167 register */
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/* Get %fp2 - %fp31 by addition, since they are contiguous */
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#undef  SP_REGNUM
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#define SP_REGNUM ESP_REGNUM    /* Contains address of top of stack */
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#undef  FP_REGNUM
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#define FP_REGNUM EBP_REGNUM    /* Contains address of executing stack frame */
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#undef  PC_REGNUM
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#define PC_REGNUM EIP_REGNUM    /* Contains program counter */
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#undef  PS_REGNUM
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#define PS_REGNUM EFLAGS_REGNUM /* Contains processor status */
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/*
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 * For ptx, this is a little bit bizarre, since the register block
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 * is below the u area in memory.  This means that blockend here ends
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 * up being negative (for the call from coredep.c) since the value in
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 * u.u_ar0 will be less than KERNEL_U_ADDR (and coredep.c passes us
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 * u.u_ar0 - KERNEL_U_ADDR in blockend).  Since we also define
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 * FETCH_INFERIOR_REGISTERS (and supply our own functions for that),
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 * the core file case will be the only use of this function.
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 */
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#define REGISTER_U_ADDR(addr, blockend, regno) \
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{ (addr) = ptx_register_u_addr((blockend), (regno)); }
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extern int
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ptx_register_u_addr PARAMS ((int, int));
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/* Total amount of space needed to store our copies of the machine's
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   register state, the array `registers'.  10 i*86 registers, 8 i387
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   registers, and 31 Weitek 1167 registers */
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#undef  REGISTER_BYTES
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#define REGISTER_BYTES ((10 * 4) + (8 * 10) + (31 * 4))
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/* Index within `registers' of the first byte of the space for register N. */
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#undef  REGISTER_BYTE
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#define REGISTER_BYTE(N)                \
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(((N) < ST0_REGNUM) ? ((N) * 4) : \
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 ((N) < FP1_REGNUM) ? (40 + (((N) - ST0_REGNUM) * 10)) : \
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 (40 + 80 + (((N) - FP1_REGNUM) * 4)))
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/* Number of bytes of storage in the actual machine representation for
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   register N.  All registers are 4 bytes, except 387 st(0) - st(7),
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   which are 80 bits each. */
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#undef  REGISTER_RAW_SIZE
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#define REGISTER_RAW_SIZE(N) \
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(((N) < ST0_REGNUM) ? 4 : \
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 ((N) < FP1_REGNUM) ? 10 : \
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 4)
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/* Largest value REGISTER_RAW_SIZE can have.  */
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#undef  MAX_REGISTER_RAW_SIZE
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#define MAX_REGISTER_RAW_SIZE 10
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/* Nonzero if register N requires conversion
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   from raw format to virtual format.  */
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#undef REGISTER_CONVERTIBLE
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#define REGISTER_CONVERTIBLE(N) \
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((N < ST0_REGNUM) ? 0 : \
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 (N < FP1_REGNUM) ? 1 : \
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 0)
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/* Convert data from raw format for register REGNUM
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   to virtual format for register REGNUM.  */
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extern const struct floatformat floatformat_i387_ext;   /* from floatformat.h */
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#undef REGISTER_CONVERT_TO_VIRTUAL
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#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO)        \
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((REGNUM < ST0_REGNUM) ?  (void)memcpy ((TO), (FROM), 4) : \
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 (REGNUM < FP1_REGNUM) ? (void)floatformat_to_double(&floatformat_i387_ext, \
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                                                       (FROM),(TO)) : \
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 (void)memcpy ((TO), (FROM), 4))
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/* Convert data from virtual format for register REGNUM
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   to raw format for register REGNUM.  */
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#undef REGISTER_CONVERT_TO_RAW
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#define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO)    \
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((REGNUM < ST0_REGNUM) ?  (void)memcpy ((TO), (FROM), 4) : \
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 (REGNUM < FP1_REGNUM) ? (void)floatformat_from_double(&floatformat_i387_ext, \
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                                                       (FROM),(TO)) : \
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 (void)memcpy ((TO), (FROM), 4))
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/* Return the GDB type object for the "standard" data type
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   of data in register N.  */
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/*
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 * Note: the 1167 registers (the last line, builtin_type_float) are
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 * generally used in pairs, with each pair being treated as a double.
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 * It it also possible to use them singly as floats.  I'm not sure how
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 * in gdb to treat the register pair pseudo-doubles. -fubar
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 */
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#undef REGISTER_VIRTUAL_TYPE
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#define REGISTER_VIRTUAL_TYPE(N) \
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((N < ST0_REGNUM) ? builtin_type_int : \
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 (N < FP1_REGNUM) ? builtin_type_double : \
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 builtin_type_float)
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/* Extract from an array REGBUF containing the (raw) register state
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   a function return value of type TYPE, and copy that, in virtual format,
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   into VALBUF.  */
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#undef  EXTRACT_RETURN_VALUE
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#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
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  symmetry_extract_return_value(TYPE, REGBUF, VALBUF)
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/*
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   #undef  FRAME_FIND_SAVED_REGS
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   #define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
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   { ptx_frame_find_saved_regs((frame_info), &(frame_saved_regs)); }
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 */
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#endif /* ifndef TM_PTX_H */

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