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/* Parameters for NYU Ultracomputer 29000 target, for GDB, the GNU debugger.

   Copyright 1990, 1991 Free Software Foundation, Inc.

   Contributed by David Wood @ New York University (wood@nyu.edu).

   This file is part of GDB.

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

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

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

   (at your option) any later version.

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

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

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

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

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

   Boston, MA 02111-1307, USA.  */

/* This file includes tm-a29k.h, but predefines REGISTER_NAMES and

   related macros.  The file supports a a29k running our flavor of

   Unix on our Ultra3 PE Boards.  */

/* Byte order is configurable, but this machine runs big-endian.  */

#define TARGET_BYTE_ORDER BIG_ENDIAN

/* Initializer for an array of names of registers.

   There should be NUM_REGS strings in this initializer.

 */

#define NUM_REGS   (EXO_REGNUM + 1)

#define REGISTER_NAMES {                                                 \

 "gr1",                                                                  \

 "gr64", "gr65", "gr66", "gr67", "gr68", "gr69", "gr70", "gr71", "gr72", \

 "gr73", "gr74", "gr75", "gr76", "gr77", "gr78", "gr79", "gr80", "gr81", \

 "gr82", "gr83", "gr84", "gr85", "gr86", "gr87", "gr88", "gr89", "gr90", \

 "gr91", "gr92", "gr93", "gr94", "gr95",                                 \

 "gr96", "gr97", "gr98", "gr99", "gr100", "gr101", "gr102", "gr103", "gr104", \

 "gr105", "gr106", "gr107", "gr108", "gr109", "gr110", "gr111", "gr112", \

 "gr113", "gr114", "gr115", "gr116", "gr117", "gr118", "gr119", "gr120", \

 "gr121", "gr122", "gr123", "gr124", "gr125", "gr126", "gr127",          \

 "lr0", "lr1", "lr2", "lr3", "lr4", "lr5", "lr6", "lr7", "lr8", "lr9",   \

 "lr10", "lr11", "lr12", "lr13", "lr14", "lr15", "lr16", "lr17", "lr18", \

 "lr19", "lr20", "lr21", "lr22", "lr23", "lr24", "lr25", "lr26", "lr27", \

 "lr28", "lr29", "lr30", "lr31", "lr32", "lr33", "lr34", "lr35", "lr36", \

 "lr37", "lr38", "lr39", "lr40", "lr41", "lr42", "lr43", "lr44", "lr45", \

 "lr46", "lr47", "lr48", "lr49", "lr50", "lr51", "lr52", "lr53", "lr54", \

 "lr55", "lr56", "lr57", "lr58", "lr59", "lr60", "lr61", "lr62", "lr63", \

 "lr64", "lr65", "lr66", "lr67", "lr68", "lr69", "lr70", "lr71", "lr72", \

 "lr73", "lr74", "lr75", "lr76", "lr77", "lr78", "lr79", "lr80", "lr81", \

 "lr82", "lr83", "lr84", "lr85", "lr86", "lr87", "lr88", "lr89", "lr90", \

 "lr91", "lr92", "lr93", "lr94", "lr95", "lr96", "lr97", "lr98", "lr99", \

 "lr100", "lr101", "lr102", "lr103", "lr104", "lr105", "lr106", "lr107", \

 "lr108", "lr109", "lr110", "lr111", "lr112", "lr113", "lr114", "lr115", \

 "lr116", "lr117", "lr118", "lr119", "lr120", "lr121", "lr122", "lr123", \

 "lr124", "lr125", "lr126", "lr127",                                     \

 "vab", "ops", "cps", "cfg", "cha", "chd", "chc", "rbp", "tmc", "tmr",   \

 "pc0", "pc1", "pc2", "mmu", "lru",                                      \

 "ipc", "ipa", "ipb", "q", "alu", "bp", "fc", "cr",                      \

 "fpe", "int", "fps", "exo" }

#ifdef KERNEL_DEBUGGING

#define PADDR_U_REGNUM  22      /* gr86 */

#define RETURN_REGNUM   GR64_REGNUM

#else

#define RETURN_REGNUM   GR96_REGNUM

#endif /* KERNEL_DEBUGGING */

/* Should rename all GR96_REGNUM to RETURN_REGNUM */

#define GR1_REGNUM      (0)

#define GR64_REGNUM     1

#define GR96_REGNUM     (GR64_REGNUM + 32)

/* This needs to be the memory stack pointer, not the register stack pointer,

   to make call_function work right.  */

#define SP_REGNUM       MSP_REGNUM

#define FP_REGNUM       (LR0_REGNUM + 1)        /* lr1 */

/* Large Return Pointer  */

#define LRP_REGNUM (123 - 96 + RETURN_REGNUM)

/* Static link pointer   */

#define SLP_REGNUM (124 - 96 + RETURN_REGNUM)

/* Memory Stack Pointer.  */

#define MSP_REGNUM (125 - 96 + RETURN_REGNUM)

/* Register allocate bound.  */

#define RAB_REGNUM (126 - 96 + RETURN_REGNUM)

/* Register Free Bound.  */

#define RFB_REGNUM (127 - 96 + RETURN_REGNUM)

/* Register Stack Pointer.  */

#define RSP_REGNUM GR1_REGNUM

#define LR0_REGNUM ( 32 +  GR96_REGNUM)

/* Protected Special registers */

#define VAB_REGNUM (LR0_REGNUM +  128)

#define OPS_REGNUM (VAB_REGNUM + 1)

#define CPS_REGNUM (VAB_REGNUM + 2)

#define CFG_REGNUM (VAB_REGNUM + 3)

#define CHA_REGNUM (VAB_REGNUM + 4)

#define CHD_REGNUM (VAB_REGNUM + 5)

#define CHC_REGNUM (VAB_REGNUM + 6)

#define RBP_REGNUM (VAB_REGNUM + 7)

#define TMC_REGNUM (VAB_REGNUM + 8)

#define TMR_REGNUM (VAB_REGNUM + 9)

#define NPC_REGNUM (VAB_REGNUM + 10)    /* pc0 */

#define PC_REGNUM  (VAB_REGNUM + 11)    /* pc1 */

#define PC2_REGNUM (VAB_REGNUM + 12)    /* pc2 */

#define MMU_REGNUM (VAB_REGNUM + 13)

#define LRU_REGNUM (VAB_REGNUM + 14)

        /* Register sequence gap */

/* Unprotected Special registers */

#define IPC_REGNUM (LRU_REGNUM + 1)

#define IPA_REGNUM (IPC_REGNUM + 1)

#define IPB_REGNUM (IPC_REGNUM + 2)

#define Q_REGNUM   (IPC_REGNUM + 3)

#define ALU_REGNUM (IPC_REGNUM + 4)

#define PS_REGNUM  ALU_REGNUM

#define BP_REGNUM  (IPC_REGNUM + 5)

#define FC_REGNUM  (IPC_REGNUM + 6)

#define CR_REGNUM  (IPC_REGNUM + 7)

        /* Register sequence gap */

#define FPE_REGNUM (CR_REGNUM  + 1)

#define INT_REGNUM (FPE_REGNUM + 1)

#define FPS_REGNUM (FPE_REGNUM + 2)

        /* Register sequence gap */

#define EXO_REGNUM (FPS_REGNUM + 1)

/* Special register #x.  */

#define SR_REGNUM(x) \

  ((x) < 15  ? VAB_REGNUM + (x)                                  \

   : (x) >= 128 && (x) < 136 ? IPC_REGNUM + (x-128)              \

   : (x) >= 160 && (x) < 163 ? FPE_REGNUM + (x-160)              \

   : (x) == 164 ? EXO_REGNUM                                     \

   : (error ("Internal error in SR_REGNUM"), 0))

#ifndef KERNEL_DEBUGGING

/*

 * This macro defines the register numbers (from REGISTER_NAMES) that

 * are effectively unavailable to the user through ptrace().  It allows

 * us to include the whole register set in REGISTER_NAMES (inorder to

 * better support remote debugging).  If it is used in

 * fetch/store_inferior_registers() gdb will not complain about I/O errors

 * on fetching these registers.  If all registers in REGISTER_NAMES

 * are available, then return false (0).

 */

#define CANNOT_STORE_REGISTER(regno)            \

                  (((regno)>=GR64_REGNUM && (regno)<GR64_REGNUM+32) ||  \

                   ((regno)==VAB_REGNUM) ||     \

                   ((regno)==OPS_REGNUM) ||     \

                   ((regno)>=CFG_REGNUM && (regno)<=TMR_REGNUM)     ||  \

                   ((regno)==MMU_REGNUM) ||     \

                   ((regno)==LRU_REGNUM) ||     \

                   ((regno)>=ALU_REGNUM) ||     \

                   ((regno)==CR_REGNUM)  ||     \

                   ((regno)==EXO_REGNUM))

#define CANNOT_FETCH_REGISTER(regno)    CANNOT_STORE_REGISTER(regno)

#endif /* KERNEL_DEBUGGING */

/*

 * Converts an sdb register number to an internal gdb register number.

 * Currently under gcc, gr96->0...gr128->31...lr0->32...lr127->159, or...

 *                      gr64->0...gr95->31, lr0->32...lr127->159.

 */

#define SDB_REG_TO_REGNUM(value) (((value)<32) ? ((value)+RETURN_REGNUM) : \

                                                 ((value)-32+LR0_REGNUM))

#ifdef KERNEL_DEBUGGING

  /* ublock virtual address as defined in our sys/param.h */

  /* FIXME: Should get this from sys/param.h */

#define UVADDR  ((32*0x100000)-8192)

#endif

/*

 * Are we in sigtramp(), needed in infrun.c.  Specific to ultra3, because

 * we take off the leading '_'.

 */

#if !defined(KERNEL_DEBUGGING)

#ifdef SYM1

#define IN_SIGTRAMP(pc, name) (name && STREQ ("sigtramp", name))

#else

Need to define

IN_SIGTRAMP () for sym2.

#endif

#endif                          /* !KERNEL_DEBUGGING */

#include "a29k/tm-a29k.h"

/**** The following are definitions that override those in tm-a29k.h ****/

/* This sequence of words is the instructions

   mtsrim cr, 15

   loadm 0, 0, lr2, msp     ; load first 16 words of arguments into registers

   add msp, msp, 16 * 4     ; point to the remaining arguments

   CONST_INSN:

   const gr96,inf

   consth gr96,inf

   calli lr0, gr96

   aseq 0x40,gr1,gr1   ; nop

   asneq 0x50,gr1,gr1  ; breakpoint

   When KERNEL_DEBUGGIN is defined, msp -> gr93, gr96 -> gr64,

   7d  -> 5d,    60  -> 40

 */

/* Position of the "const" instruction within CALL_DUMMY in bytes.  */

#undef CALL_DUMMY

#if TARGET_BYTE_ORDER == HOST_BYTE_ORDER

#ifdef KERNEL_DEBUGGING         /* gr96 -> gr64 */

#define CALL_DUMMY {0x0400870f, 0x3600825d, 0x155d5d40, 0x03ff40ff,    \

                    0x02ff40ff, 0xc8008040, 0x70400101, 0x72500101}

#else

#define CALL_DUMMY {0x0400870f, 0x3600827d, 0x157d7d40, 0x03ff60ff,    \

                    0x02ff60ff, 0xc8008060, 0x70400101, 0x72500101}

#endif                          /* KERNEL_DEBUGGING */

#else                           /* Byte order differs.  */

you lose

#endif                          /* Byte order differs.  */

#if !defined(KERNEL_DEBUGGING)

#ifdef SYM1

#undef  DECR_PC_AFTER_BREAK

#define DECR_PC_AFTER_BREAK 0   /* Sym1 kernel does the decrement */

#else

->"ULTRA3 running other than sym1 OS" !;

#endif

#endif /* !KERNEL_DEBUGGING */