mirror of
https://github.com/marqs85/ossc
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92 lines
3.7 KiB
C
92 lines
3.7 KiB
C
#ifndef __ALT_SIM_H__
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#define __ALT_SIM_H__
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/******************************************************************************
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* *
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* License Agreement *
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* *
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* Copyright (c) 2007 Altera Corporation, San Jose, California, USA. *
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* All rights reserved. *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a *
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* copy of this software and associated documentation files (the "Software"), *
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* to deal in the Software without restriction, including without limitation *
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* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
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* and/or sell copies of the Software, and to permit persons to whom the *
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* Software is furnished to do so, subject to the following conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in *
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* all copies or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE *
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *
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* DEALINGS IN THE SOFTWARE. *
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* *
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* This agreement shall be governed in all respects by the laws of the State *
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* of California and by the laws of the United States of America. *
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* *
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******************************************************************************/
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#include "system.h"
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#include "alt_types.h"
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/*
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* Instructions that might mean something special to a simulator.
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* These have no special effect on real hardware (they are just nops).
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*/
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#define ALT_SIM_FAIL() \
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do { __asm volatile ("cmpltui r0, r0, 0xabc1"); } while (0)
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#define ALT_SIM_PASS() \
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do { __asm volatile ("cmpltui r0, r0, 0xabc2"); } while (0)
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#define ALT_SIM_IN_TOP_OF_HOT_LOOP() \
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do { __asm volatile ("cmpltui r0, r0, 0xabc3"); } while (0)
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/*
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* Routine called on exit.
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*/
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static ALT_INLINE ALT_ALWAYS_INLINE void alt_sim_halt(int exit_code)
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{
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register int r2 asm ("r2") = exit_code;
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#if defined(NIOS2_HAS_DEBUG_STUB) && (defined(ALT_BREAK_ON_EXIT) || defined(ALT_PROVIDE_GMON))
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register int r3 asm ("r3") = (1 << 2);
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#ifdef ALT_PROVIDE_GMON
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extern unsigned int alt_gmon_data[];
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register int r4 asm ("r4") = (int)alt_gmon_data;
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r3 |= (1 << 4);
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#define ALT_GMON_DATA ,"r"(r4)
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#else
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#define ALT_GMON_DATA
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#endif /* ALT_PROVIDE_GMON */
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if (r2) {
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ALT_SIM_FAIL();
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} else {
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ALT_SIM_PASS();
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}
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__asm__ volatile ("\n0:\n\taddi %0,%0, -1\n\tbgt %0,zero,0b" : : "r" (ALT_CPU_FREQ/100) ); /* Delay for >30ms */
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__asm__ volatile ("break 2" : : "r"(r2), "r"(r3) ALT_GMON_DATA );
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#else /* !DEBUG_STUB */
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if (r2) {
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ALT_SIM_FAIL();
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} else {
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ALT_SIM_PASS();
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}
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#endif /* DEBUG_STUB */
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}
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#define ALT_SIM_HALT(exit_code) \
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alt_sim_halt(exit_code)
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#endif /* __ALT_SIM_H__ */
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