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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [cygmon/] [v2_0/] [misc/] [mn10300/] [mn10300-mon.c] - Blame information for rev 174

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//==========================================================================
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//
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//      mn10300-mon.c
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//
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//      Support code to extend the generic monitor code to support
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//      MN10300 processors.
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//
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//==========================================================================
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//####ECOSGPLCOPYRIGHTBEGIN####
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// -------------------------------------------
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// This file is part of eCos, the Embedded Configurable Operating System.
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// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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//
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// eCos is free software; you can redistribute it and/or modify it under
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// the terms of the GNU General Public License as published by the Free
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// Software Foundation; either version 2 or (at your option) any later version.
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//
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// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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// for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with eCos; if not, write to the Free Software Foundation, Inc.,
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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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//
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// As a special exception, if other files instantiate templates or use macros
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// or inline functions from this file, or you compile this file and link it
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// with other works to produce a work based on this file, this file does not
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// by itself cause the resulting work to be covered by the GNU General Public
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// License. However the source code for this file must still be made available
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// in accordance with section (3) of the GNU General Public License.
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//
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// This exception does not invalidate any other reasons why a work based on
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// this file might be covered by the GNU General Public License.
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//
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// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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// at http://sources.redhat.com/ecos/ecos-license/
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// -------------------------------------------
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//####ECOSGPLCOPYRIGHTEND####
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//==========================================================================
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//#####DESCRIPTIONBEGIN####
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//
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// Author(s):    dmoseley
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// Contributors: dmoseley
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// Date:         2000-08-11
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// Purpose:      Support code to extend the generic monitor code to support
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//               MN10300 processors.
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// Description:  Further board specific support is in other files.
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//               This file contains:
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//                 register names lookup table
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//
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//               Empty Stubs:
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//                 Interval timer - This should really belong to the application
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//                 operating system.
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//
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//               Should not contain:
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//                 low level uart getchar and putchar functions
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//                 delay function to support uart
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//
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//####DESCRIPTIONEND####
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//
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//=========================================================================
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#include "monitor.h"
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struct regstruct regtab[] =
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{
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    {"d0",       D0,          1},
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    {"d1",       D1,          1},
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    {"d2",       D2,          1},
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    {"d3",       D3,          1},
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    {"a0",       A0,          1},
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    {"a1",       A1,          1},
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    {"a2",       A2,          1},
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    {"a3",       A3,          1},
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    {"sp",       SP,          1},
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    {"pc",       PC,          1},
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    {"mdr",      MDR,         1},
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    {"psw",      PSW,         1},
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    {"lir",      LIR,         1},
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    {"lar",      LAR,         1},
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#ifdef CYGPKG_HAL_MN10300_AM33
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    {"r0",       R0,          1},
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    {"r1",       R1,          1},
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    {"r2",       R2,          1},
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    {"r3",       R3,          1},
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    {"r4",       R4,          1},
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    {"r5",       R5,          1},
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    {"r6",       R6,          1},
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    {"r7",       R7,          1},
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    {"ssp",      SSP,         1},
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    {"msp",      MSP,         1},
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    {"usp",      USP,         1},
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    {"mcrh",     MCRH,        1},
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    {"mcrl",     MCRL,        1},
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    {"mcvf",     MCVF,        1},
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    {"mdrq",     MDRQ,        1},
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#if CYGHWR_HAL_MN10300_AM33_REVISION == 2
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    {"fpcr",     FPCR,        1},
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    {"fs0",      FS0,         1},
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    {"fs1",      FS1,         1},
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    {"fs2",      FS2,         1},
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    {"fs3",      FS3,         1},
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    {"fs4",      FS4,         1},
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    {"fs5",      FS5,         1},
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    {"fs6",      FS6,         1},
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    {"fs7",      FS7,         1},
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    {"fs8",      FS8,         1},
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    {"fs9",      FS9,         1},
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    {"fs10",     FS10,        1},
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    {"fs11",     FS11,        1},
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    {"fs12",     FS12,        1},
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    {"fs13",     FS13,        1},
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    {"fs14",     FS14,        1},
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    {"fs15",     FS15,        1},
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    {"fs16",     FS16,        1},
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    {"fs17",     FS17,        1},
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    {"fs18",     FS18,        1},
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    {"fs19",     FS19,        1},
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    {"fs20",     FS20,        1},
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    {"fs21",     FS21,        1},
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    {"fs22",     FS22,        1},
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    {"fs23",     FS23,        1},
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    {"fs24",     FS24,        1},
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    {"fs25",     FS25,        1},
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    {"fs26",     FS26,        1},
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    {"fs27",     FS27,        1},
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    {"fs28",     FS28,        1},
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    {"fs29",     FS29,        1},
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    {"fs30",     FS30,        1},
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    {"fs31",     FS31,        1},
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#endif
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#endif  
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    { 0,         0,           1}, /* Terminating element must be last */
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} ;
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void
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initialize_mon(void)
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{
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} /* initialize_mon */
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#if CYGHWR_HAL_MN10300_AM33_REVISION == 2
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extern int fpu_regs_read;
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#endif
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#ifdef CYGPKG_HAL_MN10300_AM33
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extern int msp_read;
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#endif
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void
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initialize_mon_each_time(void)
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{
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  int i;
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#if CYGHWR_HAL_MN10300_AM33_REVISION == 2
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  // Make sure the regtab[] indicates the valid status of the FPU registers
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  for (i = 0; regtab[i].registername != NULL; i++)
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    {
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      if ((regtab[i].registernumber >= FP_START) && (regtab[i].registernumber <= FP_END))
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        regtab[i].registervalid = fpu_regs_read;
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    }
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#endif
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#ifdef CYGPKG_HAL_MN10300_AM33
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  // Make sure the regtab[] indicates the valid status of the MSP
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  for (i = 0; regtab[i].registername != NULL; i++)
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    {
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      if (regtab[i].registernumber == MSP)
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          regtab[i].registervalid = msp_read;
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    }
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#endif
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} /* initialize_mon_each_time */
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#include <cyg/hal/hal_arch.h>
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#include <bsp/common/bsp_if.h>
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int
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machine_syscall(HAL_SavedRegisters *regs)
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{
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    int res, err;
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    target_register_t d0, d1, d2, d3;
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    d0 = get_register(D0);
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    d1 = get_register(D1);
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    d2 = get_register(D2);
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    d3 = get_register(D3);
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    err = _bsp_do_syscall(d0, // Function
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                          d1, d2, d3, 0, // arguments,
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                          &res);
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    if (err)
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    {
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        // This was a syscall.  It has now been handled, so update the registers appropriately
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        put_register(D0, res);
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        bsp_skip_instruction(regs);
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    }
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    return err;
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}
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// Utility function for printing breakpoints
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void bp_print(target_register_t bp_val)
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{
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    bsp_printf("0x%08lx\n", (unsigned long)bp_val);
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}

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