/************************************************************************************
 * writeRegisterDirect
 *
 *  synopsis: Function to write a register field. This routine does not care about
 *            the old value of the register, anything not included in the field
 *    will be zeroed out in the new value. The routine is intended for quicker access
 *    to the FPGA registers in critical code sections (accesses to the FPGA registers
 *    take approximately 1 micro-second apiece.) The inlined routine does nothing but
 *    the write (ie. no validity checks or confirmation).  
 *
 *  arguments:
 *   IN: id = the index of the rodRegister[] element to write.
 *       width = width of field to write.
 *       offset = LSB of field being written.
 *       value = the value to write to from rodRegister['id']
 ************************************************************************************/
#ifndef ACCESS_REGISTER_H
#define ACCESS_REGISTER_H
#include "simulation.h"
#include "macros.h"

/* The RodReg structure contains addresses for every FPGA register which has an ID.
   These are defined in registerIndices.h */
typedef struct RodReg {
	UINT32 *address;
} RodReg;
extern far RodReg rodRegister[];

static inline INT32 writeRegisterDirect(UINT32 id, UINT32 width, UINT32 offset,
                                        UINT32 value);

static inline INT32 writeRegisterDirect(UINT32 id, UINT32 width, UINT32 offset,
                                        UINT32 value) {
	INT32 returnCode= SUCCESS;
	
	*rodRegister[id].address= (FIELD_VAL(offset,width,value));

	//simFpgaWriteM(id, width, offset, value); //Simulation: Check access
	return returnCode;
}
#endif