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https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk
Subversion Repositories openrisc_2011-10-31
[/] [openrisc/] [tags/] [or1ksim/] [or1ksim-0.3.0/] [testbench/] [support/] [support.c] - Rev 510
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/* Support */ #include "spr_defs.h" #include "support.h" #include "int.h" #if OR1K void excpt_dummy(); void int_main(); unsigned long excpt_buserr = (unsigned long) excpt_dummy; unsigned long excpt_dpfault = (unsigned long) excpt_dummy; unsigned long excpt_ipfault = (unsigned long) excpt_dummy; unsigned long excpt_tick = (unsigned long) excpt_dummy; unsigned long excpt_align = (unsigned long) excpt_dummy; unsigned long excpt_illinsn = (unsigned long) excpt_dummy; unsigned long excpt_int = (unsigned long) int_main; unsigned long excpt_dtlbmiss = (unsigned long) excpt_dummy; unsigned long excpt_itlbmiss = (unsigned long) excpt_dummy; unsigned long excpt_range = (unsigned long) excpt_dummy; unsigned long excpt_syscall = (unsigned long) excpt_dummy; unsigned long excpt_break = (unsigned long) excpt_dummy; unsigned long excpt_trap = (unsigned long) excpt_dummy; /* Start function, called by reset exception handler. */ void reset () { int i = main(); exit (i); } /* return value by making a syscall */ void exit (int i) { __asm__ __volatile__ ("l.add r3,r0,%0\n\t" "l.nop %1": : "r" (i), "K" (NOP_EXIT)); while (1); } /* activate printf support in simulator */ void printf(const char *fmt, ...) { va_list args; va_start(args, fmt); __asm__ __volatile__ ("l.addi\tr3,%0,0\n\t" "l.addi\tr4,%1,0\n\t" "l.nop %2" : : "r" (fmt), "r" (args), "K" (NOP_PRINTF) : "r3", "r4"); } /* print long */ void report(unsigned long value) { __asm__ __volatile__ ("l.addi\tr3,%0,0\n\t" "l.nop %1": : "r" (value), "K" (NOP_REPORT)); } /* just to satisfy linker */ void __main() { } /* start_TIMER */ void start_timer(int x) { } /* read_TIMER */ /* Returns a value since started in uS */ unsigned int read_timer(int x) { unsigned long count = 0; /* Read the Time Stamp Counter */ /* asm("simrdtsc %0" :"=r" (count)); */ /*asm("l.sys 201"); */ return count; } /* For writing into SPR. */ void mtspr(unsigned long spr, unsigned long value) { __asm__ __volatile__ ("l.mtspr\t\t%0,%1,0": : "r" (spr), "r" (value)); } /* For reading SPR. */ unsigned long mfspr(unsigned long spr) { unsigned long value; __asm__ __volatile__ ("l.mfspr\t\t%0,%1,0" : "=r" (value) : "r" (spr)); return value; } #else void report(unsigned long value) { printf("report(0x%x);\n", (unsigned) value); } /* start_TIMER */ void start_timer(int tmrnum) { } /* read_TIMER */ /* Returns a value since started in uS */ unsigned int read_timer(int tmrnum) { struct timeval tv; struct timezone tz; gettimeofday(&tv, &tz); return(tv.tv_sec*1000000+tv.tv_usec); } #endif void *memcpy (void *__restrict dstvoid, __const void *__restrict srcvoid, size_t length) { char *dst = dstvoid; const char *src = (const char *) srcvoid; while (length--) *dst++ = *src++; return dst; } void excpt_dummy() {}
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