//==========================================================================////      mips-mon.c////      Support code to extend the generic monitor code to support//      MIPS processors.////==========================================================================//####ECOSGPLCOPYRIGHTBEGIN####// -------------------------------------------// This file is part of eCos, the Embedded Configurable Operating System.// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.//// eCos 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 or (at your option) any later version.//// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.//// As a special exception, if other files instantiate templates or use macros// or inline functions from this file, or you compile this file and link it// with other works to produce a work based on this file, this file does not// by itself cause the resulting work to be covered by the GNU General Public// License. However the source code for this file must still be made available// in accordance with section (3) of the GNU General Public License.//// This exception does not invalidate any other reasons why a work based on// this file might be covered by the GNU General Public License.//// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.// at http://sources.redhat.com/ecos/ecos-license/// -------------------------------------------//####ECOSGPLCOPYRIGHTEND####//==========================================================================//#####DESCRIPTIONBEGIN####//// Author(s):    dmoseley// Contributors: dmoseley// Date:         2000-06-07// Purpose:      Support code to extend the generic monitor code to support//               MIPS(R) processors.// Description:  Further board specific support is in other files.//               This file contains://                 register names lookup table////               Empty Stubs://                 Interval timer - This should really belong to the application//                 operating system.////               Should not contain://                 low level uart getchar and putchar functions//                 delay function to support uart////####DESCRIPTIONEND####////=========================================================================#include "monitor.h"struct regstruct regtab[] ={    { "zero",      REG_ZERO },    { "at",        REG_AT },    { "v0",        REG_V0 },    { "v1",        REG_V1 },    { "a0",        REG_A0 },    { "a1",        REG_A1 },    { "a2",        REG_A2 },    { "a3",        REG_A3 },    { "t0",        REG_T0 },    { "t1",        REG_T1 },    { "t2",        REG_T2 },    { "t3",        REG_T3 },    { "t4",        REG_T4 },    { "t5",        REG_T5 },    { "t6",        REG_T6 },    { "t7",        REG_T7 },    { "s0",        REG_S0 },    { "s1",        REG_S1 },    { "s2",        REG_S2 },    { "s3",        REG_S3 },    { "s4",        REG_S4 },    { "s5",        REG_S5 },    { "s6",        REG_S6 },    { "s7",        REG_S7 },    { "t8",        REG_T8 },    { "t9",        REG_T9 },    { "k0",        REG_K0 },    { "k1",        REG_K1 },    { "gp",        REG_GP },    { "sp",        REG_SP },    { "s8",        REG_S8 },    { "ra",        REG_RA },    { "sr",        REG_SR },    { "lo",        REG_LO },    { "hi",        REG_HI },    { "badvr",     REG_BAD },    { "cause",     REG_CAUSE },    { "pc",        REG_PC },#ifdef CYGHWR_HAL_MIPS_FPU    { "f0",        REG_F0 },    { "f1",        REG_F1 },    { "f2",        REG_F2 },    { "f3",        REG_F3 },    { "f4",        REG_F4 },    { "f5",        REG_F5 },    { "f6",        REG_F6 },    { "f7",        REG_F7 },    { "f8",        REG_F8 },    { "f9",        REG_F9 },    { "f10",       REG_F10 },    { "f11",       REG_F11 },    { "f12",       REG_F12 },    { "f13",       REG_F13 },    { "f14",       REG_F14 },    { "f15",       REG_F15 },    { "f16",       REG_F16 },    { "f17",       REG_F17 },    { "f18",       REG_F18 },    { "f19",       REG_F19 },    { "f20",       REG_F20 },    { "f21",       REG_F21 },    { "f22",       REG_F22 },    { "f23",       REG_F23 },    { "f24",       REG_F24 },    { "f25",       REG_F25 },    { "f26",       REG_F26 },    { "f27",       REG_F27 },    { "f28",       REG_F28 },    { "f29",       REG_F29 },    { "f30",       REG_F30 },    { "f31",       REG_F31 },    { "fcr31",     REG_FCR31 },#endif /* CYGHWR_HAL_MIPS_FPU */    { 0, 0 }, /* Terminating element must be last */} ;voidinitialize_mon(void){} /* initialize_mon */#include <cyg/hal/hal_arch.h>#include <bsp/common/bsp_if.h>intmachine_syscall(HAL_SavedRegisters *regs){    int res, err;    target_register_t a0, a1, a2, a3;    a0 = get_register(REG_A0);    a1 = get_register(REG_A1);    a2 = get_register(REG_A2);    a3 = get_register(REG_A3);    err = _bsp_do_syscall(a0, // Function                          a1, a2, a3, 0, // arguments,                          &res);    if (err)    {        // This was a syscall.  It has now been handled, so update the registers appropriately        put_register(REG_V0, res);        bsp_skip_instruction(regs);    }    return err;}// Utility function for printing breakpointsvoid bp_print(target_register_t bp_val){    bsp_printf("0x%08lx\n", (unsigned long)bp_val);}