/* wdbRegLib.c - register manipulation library for the wdb agent *//* Copyright 1984-1994 Wind River Systems, Inc. *//*modification history--------------------01c,25may95,ms	minor tweek.01b,31jan95,ms  fixed wdbRegsGet routine for system registers.01a,29oct94,ms  written.*//*DESCPRIPTIONThis library contains the RPCs to get and set a contexts registers.*/#include "wdb/wdb.h"#include "wdb/wdbLibP.h"#include "wdb/wdbSvcLib.h"#include "wdb/wdbRtIfLib.h"#include "string.h"/* forward declarations */static UINT32 wdbRegGet (WDB_REG_READ_DESC *pRegRead, WDB_MEM_XFER *pMemXfer);static UINT32 wdbRegSet (WDB_REG_WRITE_DESC *pRegWrite);/******************************************************************************** wdbRegsLibInit -*/void wdbRegsLibInit (void)    {    wdbSvcAdd (WDB_REGS_GET, wdbRegGet, xdr_WDB_REG_READ_DESC, xdr_WDB_MEM_XFER);    wdbSvcAdd (WDB_REGS_SET, wdbRegSet, xdr_WDB_REG_WRITE_DESC, xdr_void);    }/******************************************************************************** wdbRegGet - get a contexts registers.*/static UINT32 wdbRegGet    (    WDB_REG_READ_DESC *	pRegRead,    WDB_MEM_XFER *	pMemXfer    )    {    int		status;    char *	pRegs;    /* use wdb call to get pointer to system registers */    if (pRegRead->context.contextType == WDB_CTX_SYSTEM)        {	status = wdbExternRegsGet (pRegRead->regSetType, &pRegs);        }    /* use run-time callout to get pointer to task registers */    else	{	if (pWdbRtIf->taskRegsGet == NULL)	    return (WDB_ERR_NO_RT_PROC);		status = (*pWdbRtIf->taskRegsGet) (&pRegRead->context,					pRegRead->regSetType,					&pRegs);	}    if (status == ERROR)	return (WDB_ERR_INVALID_PARAMS);    pMemXfer->numBytes		= pRegRead->memRegion.numBytes;    pMemXfer->source		= &pRegs[(int)pRegRead->memRegion.baseAddr];    return (OK);    }/******************************************************************************** wdbRegSet - set a contexts registers.*/static UINT32 wdbRegSet    (    WDB_REG_WRITE_DESC *	pRegWrite    )    {    int         status;    char *	pRegs;    /* get old regs */    if (pRegWrite->context.contextType == WDB_CTX_SYSTEM)        {	status = wdbExternRegsGet (pRegWrite->regSetType, &pRegs);	}    else	{	if ((pWdbRtIf->taskRegsSet == NULL) || (pWdbRtIf->taskRegsGet == NULL))            return (WDB_ERR_NO_RT_PROC);	status = (*pWdbRtIf->taskRegsGet) (&pRegWrite->context,                                        pRegWrite->regSetType,                                        &pRegs);	}    if (status == ERROR)        return (WDB_ERR_INVALID_PARAMS);    /* overwrite some of the regs */    bcopy ((caddr_t)pRegWrite->memXfer.source,	   (caddr_t)&pRegs[(int)pRegWrite->memXfer.destination],	   pRegWrite->memXfer.numBytes);    /* set the regs */    if (pRegWrite->context.contextType == WDB_CTX_SYSTEM)	{	status = wdbExternRegsSet (pRegWrite->regSetType, pRegs);	}    else	{	status = (*pWdbRtIf->taskRegsSet) (&pRegWrite->context,                                        pRegWrite->regSetType,                                        pRegs);	}    if (status == ERROR)        return (WDB_ERR_INVALID_PARAMS);    return (OK);    }