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