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/*
* COPYRIGHT (c) 2014 Hesham ALMatary <heshamelmatary@gmail.com>
*
* COPYRIGHT (c) 1989-2006
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include <rtems/score/cpu.h>
#include <rtems/score/interr.h>
#include <rtems/score/or1k-utility.h>
void _CPU_Context_Initialize(
Context_Control *context,
void *stack_area_begin,
size_t stack_area_size,
uint32_t new_level,
void (*entry_point)( void ),
bool is_fp,
void *tls_area
)
{
/* Decrement 200 byte to account for red-zone */
uint32_t stack = ((uint32_t) stack_area_begin) - 200;
uint32_t sr;
uint32_t stack_high = stack + stack_area_size;
sr = _OR1K_mfspr(CPU_OR1K_SPR_SR);
memset(context, 0, sizeof(*context));
context->r1 = stack_high;
context->r2 = stack_high;
context->r9 = (uint32_t) entry_point;
context->sr = sr;
}
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