/* sysTimer.s - template low level system timer support for sysTimer.c *//* Copyright 2002 Wind River Systems, Inc. *//*TODO -  Remove the template modification history and begin a new history        starting with version 01a and growing the history upward with        each revision.modification history--------------------01a,21may02,scm  written.*//*DESCRIPTIONThis module contains low level system timer support routines written in assemblylanguage for sysTimer.c.*/#define _ASMLANGUAGE#include "vxWorks.h"#include "regs.h"#include "arch/arm/arm.h"#include "arch/arm/mmuArmLib.h"#include "arch/arm/excArmLib.h"#include "sysLib.h"#include "config.h"        .data        .globl   VAR(copyright_wind_river)        .long    VAR(copyright_wind_river)/* * TODO - add low level system timer support routines * for the timer controller. */        /* internals */        /* Read/Write Timer Mode Registers */        .globl  FUNC(sysRead_TMR0)        .globl  FUNC(sysRead_TMR1)        .globl  FUNC(sysWrite_TMR0)        .globl  FUNC(sysWrite_TMR1)        /* Enable/Disable Timer */        .globl  FUNC(sysEnable_TMR0)        .globl  FUNC(sysEnable_TMR1)        .globl  FUNC(sysDisable_TMR0)        .globl  FUNC(sysDisable_TMR1)        /* Enable/Disable Timer Auto Reload */        .globl  FUNC(sysEnable_Reload_TMR0)        .globl  FUNC(sysEnable_Reload_TMR1)        .globl  FUNC(sysDisable_Reload_TMR0)        .globl  FUNC(sysDisable_Reload_TMR1)        /* Enable/Disable Timer Privileged Write Control for User Mode */        .globl  FUNC(sysEnable_PU_Mode_TMR0)        .globl  FUNC(sysEnable_PU_Mode_TMR1)        .globl  FUNC(sysDisable_U_Mode_TMR0)        .globl  FUNC(sysDisable_U_Mode_TMR1)        /* Read Timer Terminal Count Status */        .globl  FUNC(sysRead_TCS_TMR0)        .globl  FUNC(sysRead_TCS_TMR1)        /* Read/Write Timer Input Clock Select */        .globl  FUNC(sysRead_CSel_TMR0)        .globl  FUNC(sysRead_CSel_TMR1)        .globl  FUNC(sysWrite_CSel_TMR0)        .globl  FUNC(sysWrite_CSel_TMR1)        /* Read/Write Timer Count Registers */        .globl  FUNC(sysRead_TCR0)        .globl  FUNC(sysRead_TCR1)        .globl  FUNC(sysWrite_TCR0)        .globl  FUNC(sysWrite_TCR1)        /* Read/Write Timer Reload Registers */        .globl  FUNC(sysRead_TRR0)        .globl  FUNC(sysRead_TRR1)        .globl  FUNC(sysWrite_TRR0)        .globl  FUNC(sysWrite_TRR1)        /* Read/Clear Timer Interrupt Status Registers */        .globl  FUNC(sysRead_TISR0)        .globl  FUNC(sysRead_TISR1)        .globl  FUNC(sysClear_TISR0)        .globl  FUNC(sysClear_TISR1)        /* Enable/Read Watch Dog Timer */        .globl  FUNC(sysEnable_WDTCR)        .globl  FUNC(sysRead_WDTCR)	.text	.align 4/****************************************************************************** sysRead_TMR0 - Read Timer 0 Mode Register.** RETURNS:       UINT32 containing the current TMR0 settings.*/_ARM_FUNCTION_CALLED_FROM_C(sysRead_TMR0)        /* Read Timer 0 Mode Register */        /* clear reserved bits        */        mov     pc, lr/****************************************************************************** sysRead_TMR1 - Read Timer 1 Mode Register.** RETURNS:       UINT32 containing the current TMR1 settings.*/_ARM_FUNCTION_CALLED_FROM_C(sysRead_TMR1)        /* Read Timer 1 Mode Register */        /* clear reserved bits        */        mov     pc, lr/****************************************************************************** sysWrite_TMR0 - Write Timer 0 Mode Register.** R0:            UINT32 containing the current TMR0 settings.** RETURNS:                                                   */_ARM_FUNCTION_CALLED_FROM_C(sysWrite_TMR0)        /* Write Timer 0 Mode Register */        mov     pc, lr/****************************************************************************** sysWrite_TMR1 - Write Timer 1 Mode Register.** R0:            UINT32 containing the current TMR1 settings.** RETURNS:                                                   */_ARM_FUNCTION_CALLED_FROM_C(sysWrite_TMR1)        /* Write Timer 1 Mode Register */        mov     pc, lr/****************************************************************************** sysEnable_TMR0 - Enable Timer 0.** RETURNS: */_ARM_FUNCTION_CALLED_FROM_C(sysEnable_TMR0)        /* Read Timer 0 Mode Register  */        /* Set Enable Bit              */        /* Write Timer 0 Mode Register */        mov     pc, lr/****************************************************************************** sysEnable_TMR1 - Enable Timer 1.** RETURNS:*/_ARM_FUNCTION_CALLED_FROM_C(sysEnable_TMR1)        /* Read Timer 1 Mode Register  */        /* Set Enable Bit              */        /* Write Timer 1 Mode Register */        mov     pc, lr/****************************************************************************** sysDisable_TMR0 - Disable Timer 0.** RETURNS:*/_ARM_FUNCTION_CALLED_FROM_C(sysDisable_TMR0)        /* Read Timer 0 Mode Register  */        /* Set Disable Bit             */        /* Write Timer 0 Mode Register */        mov     pc, lr/****************************************************************************** sysDisable_TMR1 - Disable Timer 1.** RETURNS:*/_ARM_FUNCTION_CALLED_FROM_C(sysDisable_TMR1)        /* Read Timer 1 Mode Register  */        /* Set Disable Bit             */        /* Write Timer 1 Mode Register */        mov     pc, lr/****************************************************************************** sysEnable_Reload_TMR0 - Enable Timer 0 Auto Reload.** RETURNS:*/_ARM_FUNCTION_CALLED_FROM_C(sysEnable_Reload_TMR0)        /* Read Timer 0 Mode Register  */        /* Set Enable Auto Reload Bit  */        /* Write Timer 0 Mode Register */        mov     pc, lr/****************************************************************************** sysEnable_Reload_TMR1 - Enable Timer 1 Auto Reload.** RETURNS:*/_ARM_FUNCTION_CALLED_FROM_C(sysEnable_Reload_TMR1)        /* Read Timer 1 Mode Register  */        /* Set Enable Auto Reload Bit  */        /* Write Timer 1 Mode Register */        mov     pc, lr/****************************************************************************** sysDisable_Reload_TMR0 - Disable Timer 0 Auto Reload.** RETURNS:*/_ARM_FUNCTION_CALLED_FROM_C(sysDisable_Reload_TMR0)        /* Read Timer 0 Mode Register  */        /* Set Disable Auto Reload Bit */        /* Write Timer 0 Mode Register */        mov     pc, lr/****************************************************************************** sysDisable_Reload_TMR1 - Disable Timer 1 Auto Reload.** RETURNS:*/_ARM_FUNCTION_CALLED_FROM_C(sysDisable_Reload_TMR1)        /* Read Timer 1 Mode Register  */        /* Set Disable Auto Reload Bit */        /* Write Timer 1 Mode Register */        mov     pc, lr/****************************************************************************** sysEnable_PU_Mode_TMR0 - Privileged and User Mode Write Enable for Timer 0.** RETURNS:*/_ARM_FUNCTION_CALLED_FROM_C(sysEnable_PU_Mode_TMR0)        /* Read Timer 0 Mode Register  */        /* Set Privileged Write Control Bit  */        /* Write Timer 0 Mode Register */        mov     pc, lr/****************************************************************************** sysEnable_PU_Mode_TMR1 - Privileged and User Mode Write Enable for Timer 1.** RETURNS:*/