/************************************** * * copyright @ Motorola, 1999 * * * This file contains two commonly used * lower level utility routines. * * The utility routines are also in other * Kahlua device driver libraries. The * need to be linked in only once. **************************************/#include <ppc_asm.tmpl>#include <ppc_defs.h>/********************************************************** * function: load_runtime_reg * * input:  r3 - value of eumbbar *         r4 - register offset in embedded utility space * * output: r3 - register content **********************************************************/      .text      .align 2      .global load_runtime_regload_runtime_reg:		  xor r5,r5,r5	  or  r5,r5,r3       /* save eumbbar */	      lwbrx	r3,r4,r5	      sync	      bclr 20, 0/**************************************************************** * function: store_runtime_reg * * input: r3 - value of eumbbar *        r4 - register offset in embedded utility space *        r5 - new value to be stored * ****************************************************************/	   .text	   .align 2	   .global store_runtime_regstore_runtime_reg:		  xor r0,r0,r0	      stwbrx r5,  r4, r3	      sync		  bclr   20,0