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#include "xparameters.h"

#include "xreg405.h"

#include "stdio.h"

#include "xuartns550_l.h"

#include "xutil.h"

#include "xpseudo_asm.h"

/**

   requires following in system.mhs:

   PARAMETER C_APU_CONTROL = 0x1E01

   PARAMETER C_APU_UDI_1 = 0xC07605

**/

//volatile unsigned __attribute__((section(".bram"))) bram[0x1000];

volatile unsigned *bram = (unsigned*)0xcc000000;

int main() {

  char c;

  int a, b, i;

#if 1

  /* initialize caches (I.J.Krakora's warning) */

  XCache_EnableDCache(0x80000001);

  XCache_EnableICache(0x80000001);

#endif

   XUartNs550_SetBaud(XPAR_RS232_UART_BASEADDR, XPAR_XUARTNS550_CLOCK_HZ, 9600);

   XUartNs550_mSetLineControlReg(XPAR_RS232_UART_BASEADDR, XUN_LCR_8_DATA_BITS);

   xil_printf("Zaciname.\r\n");

#if 1

  /* enable APU */

  unsigned int msr_data;

  msr_data = mfmsr();

  msr_data = msr_data | XREG_MSR_APU_AVAILABLE | XREG_MSR_APU_ENABLE;

  mtmsr(msr_data);

#endif

  for (i = 0; i < 0x400; i++) {

    if (bram[i] != 0)

      xil_printf("|%02x: 0x%08x\r\n", i, bram[i]);

    bram[i] = 0;

  }

  xil_printf("Go!\r\n");

  for (;;) {

    c = getchar();

    xil_printf("*before\r\n");

    UDI0FCM_IMM_GPR_GPR(0, 0xdeadbeef, b);

    xil_printf("*after\r\n");

    for (i = 0; i < 0x400; i++)

      if (bram[i] != 0)

        xil_printf("%02x: 0x%08x\r\n", i, bram[i]);

    xil_printf("--\r\n");

  }

  return 0;

}