/* lib-inttest-level.c. Test of Or1ksim library level triggered interrupt funcs.
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/* lib-inttest-level.c. Test of Or1ksim library level triggered interrupt funcs.
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Copyright (C) 1999-2006 OpenCores
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Copyright (C) 1999-2006 OpenCores
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Copyright (C) 2010 Embecosm Limited
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Copyright (C) 2010 Embecosm Limited
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Contributors various OpenCores participants
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Contributors various OpenCores participants
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Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
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Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
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This file is part of OpenRISC 1000 Architectural Simulator.
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This file is part of OpenRISC 1000 Architectural Simulator.
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This program is free software; you can redistribute it and/or modify it
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the Free
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under the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at your option)
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Software Foundation; either version 3 of the License, or (at your option)
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any later version.
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any later version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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more details.
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You should have received a copy of the GNU General Public License along
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You should have received a copy of the GNU General Public License along
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with this program. If not, see <http: www.gnu.org/licenses/>. */
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with this program. If not, see <http: www.gnu.org/licenses/>. */
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/* ----------------------------------------------------------------------------
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/* ----------------------------------------------------------------------------
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This code is commented throughout for use with Doxygen.
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This code is commented throughout for use with Doxygen.
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--------------------------------------------------------------------------*/
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--------------------------------------------------------------------------*/
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#include <stddef.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdio.h>
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#include "or1ksim.h"
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#include "or1ksim.h"
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/*! Number of interrupts in PIC */
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/*! Number of interrupts in PIC */
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#define NUM_INTS 32
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#define NUM_INTS 32
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/*! Vector of interrupts to be raised */
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/*! Vector of interrupts to be raised */
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static int *raisev;
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static int *raisev;
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/*! Count of interrupts to be raised */
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/*! Count of interrupts to be raised */
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static int raisec = 0;
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static int raisec = 0;
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/*! Next interrupt to be raised */
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/*! Next interrupt to be raised */
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static int next_raise = 0;
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static int next_raise = 0;
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/*! Vector of interrupts to be cleared */
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/*! Vector of interrupts to be cleared */
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static int *clearv;
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static int *clearv;
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/*! Count of interrupts to be cleared */
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/*! Count of interrupts to be cleared */
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static int clearc = 0;
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static int clearc = 0;
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/*! Next interrupt to be cleared */
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/*! Next interrupt to be cleared */
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static int next_clear = 0;
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static int next_clear = 0;
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/* --------------------------------------------------------------------------*/
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/* --------------------------------------------------------------------------*/
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/*!Read upcall
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/*!Read upcall
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Upcall from Or1ksim to read a word from an external peripheral. If called
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Upcall from Or1ksim to read a word from an external peripheral. If called
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this will raise the next interrupt.
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this will raise the next interrupt.
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@param[in] class_ptr A handle pass back from the initalization. Intended
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@param[in] class_ptr A handle pass back from the initalization. Intended
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for C++ callers, not used here.
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for C++ callers, not used here.
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@param[in] addr Address to read from. Ignored here.
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@param[in] addr Address to read from. Ignored here.
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@param[in] mask Byte mask for the read. Ignored here.
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@param[in] mask Byte mask for the read. Ignored here.
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@param[out] rdata Buffer for the data read. Ignored here.
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@param[out] rdata Buffer for the data read. Ignored here.
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@param[in] data_len Number of bytes in mask and rdata.
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@param[in] data_len Number of bytes in mask and rdata.
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@return Zero on success, non-zero on failure. Always zero here. */
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@return Zero on success, non-zero on failure. Always zero here. */
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/* --------------------------------------------------------------------------*/
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/* --------------------------------------------------------------------------*/
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static int
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static int
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read_upcall (void *class_ptr,
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read_upcall (void *class_ptr,
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unsigned long int addr,
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unsigned long int addr,
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unsigned char mask[],
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unsigned char mask[],
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unsigned char rdata[],
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unsigned char rdata[],
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int data_len)
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int data_len)
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{
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{
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/* Raise an interrupt if there is one left to raise. */
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/* Raise an interrupt if there is one left to raise. */
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if ((NULL != raisev) && (next_raise < raisec))
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if ((NULL != raisev) && (next_raise < raisec))
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{
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{
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printf ("Raising interrupt %d\n", raisev[next_raise]);
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printf ("Raising interrupt %d\n", raisev[next_raise]);
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or1ksim_interrupt_set (raisev[next_raise++]);
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or1ksim_interrupt_set (raisev[next_raise++]);
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}
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}
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return 0; /* Success */
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return 0; /* Success */
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} /* read_upcall () */
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} /* read_upcall () */
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/* --------------------------------------------------------------------------*/
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/* --------------------------------------------------------------------------*/
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/*!Write upcall
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/*!Write upcall
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Upcall from Or1ksim to write a word to an external peripheral. If called
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Upcall from Or1ksim to write a word to an external peripheral. If called
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this will clear the next interrupt.
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this will clear the next interrupt.
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@param[in] class_ptr A handle pass back from the initalization. Intended
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@param[in] class_ptr A handle pass back from the initalization. Intended
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for C++ callers, not used here.
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for C++ callers, not used here.
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@param[in] addr Address to write to. Ignored here.
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@param[in] addr Address to write to. Ignored here.
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@param[in] mask Byte mask for the write. Ignored here.
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@param[in] mask Byte mask for the write. Ignored here.
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@param[in] wdata The data to write. Ignored here.
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@param[in] wdata The data to write. Ignored here.
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@param[in] data_len Number of bytes in mask and rdata.
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@param[in] data_len Number of bytes in mask and rdata.
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@return Zero on success, non-zero on failure. Always zero here. */
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@return Zero on success, non-zero on failure. Always zero here. */
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/* --------------------------------------------------------------------------*/
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/* --------------------------------------------------------------------------*/
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static int
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static int
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write_upcall (void *class_ptr,
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write_upcall (void *class_ptr,
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unsigned long int addr,
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unsigned long int addr,
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unsigned char mask[],
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unsigned char mask[],
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unsigned char wdata[],
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unsigned char wdata[],
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int data_len)
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int data_len)
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{
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{
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/* Clear an interrupt if there is one left to clear. */
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/* Clear an interrupt if there is one left to clear. */
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if ((NULL != clearv) && (next_clear < clearc))
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if ((NULL != clearv) && (next_clear < clearc))
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{
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{
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printf ("Clearing interrupt %d\n", clearv[next_clear]);
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printf ("Clearing interrupt %d\n", clearv[next_clear]);
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or1ksim_interrupt_clear (clearv[next_clear++]);
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or1ksim_interrupt_clear (clearv[next_clear++]);
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}
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}
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return 0; /* Success */
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return 0; /* Success */
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} /* write_upcall () */
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} /* write_upcall () */
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/* --------------------------------------------------------------------------*/
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/* --------------------------------------------------------------------------*/
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/*!Main program
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/*!Main program
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Build an or1ksim program using the library which loads a program and config
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Build an or1ksim program using the library which loads a program and config
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from the command line, and then drives interrupts. Usage:
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from the command line, and then drives interrupts. Usage:
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lib-inttest-level <config-file> <image> +|-<int #> +|-<int #> ...
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lib-inttest-level <config-file> <image> +|-<int #> +|-<int #> ...
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<image> is run continuously. It requests that an interrupt be raised by a
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<image> is run continuously. It requests that an interrupt be raised by a
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read upcall and cleared by a write upcall. The sequence of interrupts is
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read upcall and cleared by a write upcall. The sequence of interrupts is
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specified to be raised (if preceded by '+') or cleared (if preceded by
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specified to be raised (if preceded by '+') or cleared (if preceded by
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'-'). This allows the program to test the effect of clearing the wrong
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'-'). This allows the program to test the effect of clearing the wrong
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interrupt.
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interrupt.
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@param[in] argc Number of elements in argv
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@param[in] argc Number of elements in argv
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@param[in] argv Vector of program name and arguments
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@param[in] argv Vector of program name and arguments
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@return Return code for the program. */
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@return Return code for the program. */
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/* --------------------------------------------------------------------------*/
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/* --------------------------------------------------------------------------*/
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int
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int
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main (int argc,
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main (int argc,
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char *argv[])
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char *argv[])
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{
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{
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/* Parse args */
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/* Parse args */
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if (argc < 4)
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if (argc < 4)
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{
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{
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fprintf (stderr,
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fprintf (stderr,
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"usage: lib-inttest-level <config-file> <image> "
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"usage: lib-inttest-level <config-file> <image> "
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"+|-<int #> +|-<int #> ...\n");
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"+|-<int #> +|-<int #> ...\n");
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return 1;
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return 1;
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}
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}
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/* Get all the interrupts sorted out. Count them, then place them in a
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/* Get all the interrupts sorted out. Count them, then place them in a
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vector. */
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vector. */
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int i;
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int i;
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for (i = 3; i < argc; i++)
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for (i = 3; i < argc; i++)
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{
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{
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int inum;
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int inum;
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switch (argv[i][0])
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switch (argv[i][0])
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{
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{
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case '+':
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case '+':
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inum = atoi (&(argv[i][1]));
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inum = atoi (&(argv[i][1]));
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if ((0 <= inum) && (inum < NUM_INTS))
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if ((0 <= inum) && (inum < NUM_INTS))
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{
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{
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raisec++;
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raisec++;
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}
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}
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else
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else
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{
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{
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printf ("Warning: Invalid interrupt # %d to raise.\n", inum);
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printf ("Warning: Invalid interrupt # %d to raise.\n", inum);
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}
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}
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break;
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break;
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case '-':
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case '-':
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inum = atoi (&(argv[i][1]));
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inum = atoi (&(argv[i][1]));
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if ((0 <= inum) && (inum < NUM_INTS))
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if ((0 <= inum) && (inum < NUM_INTS))
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{
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{
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clearc++;
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clearc++;
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}
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}
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else
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else
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{
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{
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printf ("Warning: Invalid interrupt # %d to clear.\n", inum);
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printf ("Warning: Invalid interrupt # %d to clear.\n", inum);
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}
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}
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break;
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break;
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default:
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default:
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printf ("Warning: No raise/clear specified - ignored\n");
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printf ("Warning: No raise/clear specified - ignored\n");
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break;
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break;
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}
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}
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}
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}
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if ((0 == raisec) && (0 == clearc))
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if ((0 == raisec) && (0 == clearc))
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{
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{
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printf ("ERROR: No interrupts specified.\n");
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printf ("ERROR: No interrupts specified.\n");
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return 1;
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return 1;
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}
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}
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/* Allocate space and populate the vectors. */
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/* Allocate space and populate the vectors. */
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raisev = (raisec > 0) ? calloc (raisec, sizeof (int)) : NULL;
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raisev = (raisec > 0) ? calloc (raisec, sizeof (int)) : NULL;
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clearv = (clearc > 0) ? calloc (clearc, sizeof (int)) : NULL;
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clearv = (clearc > 0) ? calloc (clearc, sizeof (int)) : NULL;
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raisec = 0;
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raisec = 0;
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clearc = 0;
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clearc = 0;
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for (i = 3; i < argc; i++)
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for (i = 3; i < argc; i++)
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{
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{
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int inum;
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int inum;
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switch (argv[i][0])
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switch (argv[i][0])
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{
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{
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case '+':
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case '+':
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inum = atoi (&(argv[i][1]));
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inum = atoi (&(argv[i][1]));
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if ((0 <= inum) && (inum < NUM_INTS))
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if ((0 <= inum) && (inum < NUM_INTS))
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{
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{
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raisev[raisec++] = inum;
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raisev[raisec++] = inum;
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}
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}
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break;
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break;
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case '-':
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case '-':
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inum = atoi (&(argv[i][1]));
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inum = atoi (&(argv[i][1]));
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if ((0 <= inum) && (inum < NUM_INTS))
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if ((0 <= inum) && (inum < NUM_INTS))
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{
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{
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clearv[clearc++] = inum;
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clearv[clearc++] = inum;
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}
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}
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break;
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break;
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default:
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default:
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printf ("Warning: No raise/clear specified - ignored\n");
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printf ("Warning: No raise/clear specified - ignored\n");
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break;
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break;
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}
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}
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}
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}
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/* Start the counts */
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/* Start the counts */
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next_raise = 0;
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next_raise = 0;
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next_clear = 0;
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next_clear = 0;
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/* Initialize the program. Put the initialization message afterwards, or it
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/* Initialize the program. Put the initialization message afterwards, or it
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will get swamped by the Or1ksim header. */
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will get swamped by the Or1ksim header. */
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if (0 == or1ksim_init (argv[1], argv[2], NULL, &read_upcall, &write_upcall))
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if (0 == or1ksim_init (argv[1], argv[2], NULL, &read_upcall, &write_upcall))
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{
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{
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printf ("Initalization succeeded.\n");
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printf ("Initalization succeeded.\n");
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}
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}
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else
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else
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{
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{
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printf ("Initalization failed.\n");
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printf ("Initalization failed.\n");
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free (raisev);
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free (raisev);
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free (clearv);
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free (clearv);
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return 1;
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return 1;
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}
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}
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/* Run in bursts of 1ms until all interrupts have been set and cleared. */
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/* Run in bursts of 1ms until all interrupts have been set and cleared. */
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do
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do
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{
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{
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if (OR1KSIM_RC_OK != or1ksim_run (1.0e-3))
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if (OR1KSIM_RC_OK != or1ksim_run (1.0e-3))
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{
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{
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printf ("ERROR: run failed\n");
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printf ("ERROR: run failed\n");
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free (raisev);
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free (raisev);
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free (clearv);
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free (clearv);
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return 1;
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return 1;
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}
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}
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}
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}
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while ((next_raise < raisec) || (next_clear < clearc));
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while ((next_raise < raisec) || (next_clear < clearc));
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/* One more burst to allow the device driver time to complete. */
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/* One more burst to allow the device driver time to complete. */
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if (OR1KSIM_RC_OK != or1ksim_run (1.0e-3))
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if (OR1KSIM_RC_OK != or1ksim_run (1.0e-3))
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{
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{
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printf ("ERROR: run failed\n");
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printf ("ERROR: run failed\n");
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free (raisev);
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free (raisev);
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free (clearv);
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free (clearv);
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return 1;
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return 1;
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}
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}
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/* All interrupts should have been handled. */
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/* All interrupts should have been handled. */
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free (raisev);
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free (raisev);
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free (clearv);
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free (clearv);
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printf ("Test completed successfully.\n");
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printf ("Test completed successfully.\n");
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return 0;
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return 0;
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} /* main () */
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} /* main () */
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