Subversion Repositories turbo8051

/*
 * Copyright (c) 1999-2001 Tony Givargis.  Permission to copy is granted
 * provided that this header remains intact.  This software is provided
 * with no warranties.
 *
 * Version : 2.9
 */
 
/*---------------------------------------------------------------------------*/
 
#include <8051.h>
 
char cErrCnt;
/*---------------------------------------------------------------------------*/
 
__xdata __at (0xA030) unsigned int read_data;
__xdata unsigned long *rx_des_base;
__xdata unsigned long *tx_des_base;
 
void main() {
 
    unsigned int cFrameCnt = 0;
    unsigned int desc_ptr   =0;
 
    while(1) {
       if((read_data & 0xF) != 0) { // Check the Rx Q Counter
          // Read the Receive Descriptor
          // tb_top.cpu_read('h4,{desc_rx_qbase,desc_ptr},read_data); 
          // Write the Tx Descriptor
          rx_des_base = (__xdata unsigned long *) (0x7000 | desc_ptr);
          tx_des_base = (__xdata unsigned long *) (0x7040 | desc_ptr);
          //rx_des_base = (__xdata unsigned int *) (0x7000+desc_ptr);
          //tx_des_base = (__xdata unsigned int *) (0x7040+desc_ptr);
          //__xdata (int *) (0x7040+desc_ptr) = __xdata (int *)(0x7000+desc_ptr);
          // tb_top.cpu_write('h4,{desc_tx_qbase,desc_ptr},read_data); 
          *tx_des_base = *rx_des_base;
          desc_ptr = (desc_ptr+4) & 0x3F;
          cFrameCnt  = cFrameCnt+1;
         }
    }
}