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| ;******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
;* File Name : cortexm3_macro.s
;* Author : MCD Application Team
;* Version : V2.0.2
;* Date : 07/11/2008
;* Description : Instruction wrappers for special Cortex-M3 instructions.
;* to be used with EWARM4.x toolchain.
;*******************************************************************************
; THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
; WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
; AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
; INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
; CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
; INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
;*******************************************************************************
RSEG CODE:CODE(2)
; Exported functions
EXPORT __WFI
EXPORT __WFE
EXPORT __SEV
EXPORT __ISB
EXPORT __DSB
EXPORT __DMB
EXPORT __SVC
EXPORT __MRS_CONTROL
EXPORT __MSR_CONTROL
EXPORT __MRS_PSP
EXPORT __MSR_PSP
EXPORT __MRS_MSP
EXPORT __MSR_MSP
EXPORT __RESETPRIMASK
EXPORT __SETPRIMASK
EXPORT __READ_PRIMASK
EXPORT __RESETFAULTMASK
EXPORT __SETFAULTMASK
EXPORT __READ_FAULTMASK
EXPORT __BASEPRICONFIG
EXPORT __GetBASEPRI
EXPORT __REV_HalfWord
EXPORT __REV_Word
;*******************************************************************************
; Function Name : __WFI
; Description : Assembler function for the WFI instruction.
; Input : None
; Return : None
;*******************************************************************************
__WFI
WFI
BX r14
;*******************************************************************************
; Function Name : __WFE
; Description : Assembler function for the WFE instruction.
; Input : None
; Return : None
;*******************************************************************************
__WFE
WFE
BX r14
;*******************************************************************************
; Function Name : __SEV
; Description : Assembler function for the SEV instruction.
; Input : None
; Return : None
;*******************************************************************************
__SEV
SEV
BX r14
;*******************************************************************************
; Function Name : __ISB
; Description : Assembler function for the ISB instruction.
; Input : None
; Return : None
;*******************************************************************************
__ISB
ISB
BX r14
;*******************************************************************************
; Function Name : __DSB
; Description : Assembler function for the DSB instruction.
; Input : None
; Return : None
;*******************************************************************************
__DSB
DSB
BX r14
;*******************************************************************************
; Function Name : __DMB
; Description : Assembler function for the DMB instruction.
; Input : None
; Return : None
;*******************************************************************************
__DMB
DMB
BX r14
;*******************************************************************************
; Function Name : __SVC
; Description : Assembler function for the SVC instruction.
; Input : None
; Return : None
;*******************************************************************************
__SVC
SVC 0x01
BX r14
;*******************************************************************************
; Function Name : __MRS_CONTROL
; Description : Assembler function for the MRS instruction.
; Input : None
; Return : - r0 : Cortex-M3 CONTROL register value.
;*******************************************************************************
__MRS_CONTROL
MRS r0, CONTROL
BX r14
;*******************************************************************************
; Function Name : __MSR_CONTROL
; Description : Assembler function for the MSR instruction.
; Input : - r0 : Cortex-M3 CONTROL register new value.
; Return : None
;*******************************************************************************
__MSR_CONTROL
MSR CONTROL, r0
ISB
BX r14
;*******************************************************************************
; Function Name : __MRS_PSP
; Description : Assembler function for the MRS instruction.
; Input : None
; Return : - r0 : Process Stack value.
;*******************************************************************************
__MRS_PSP
MRS r0, PSP
BX r14
;*******************************************************************************
; Function Name : __MSR_PSP
; Description : Assembler function for the MSR instruction.
; Input : - r0 : Process Stack new value.
; Return : None
;*******************************************************************************
__MSR_PSP
MSR PSP, r0 ; set Process Stack value
BX r14
;*******************************************************************************
; Function Name : __MRS_MSP
; Description : Assembler function for the MRS instruction.
; Input : None
; Return : - r0 : Main Stack value.
;*******************************************************************************
__MRS_MSP
MRS r0, MSP
BX r14
;*******************************************************************************
; Function Name : __MSR_MSP
; Description : Assembler function for the MSR instruction.
; Input : - r0 : Main Stack new value.
; Return : None
;*******************************************************************************
__MSR_MSP
MSR MSP, r0 ; set Main Stack value
BX r14
;*******************************************************************************
; Function Name : __RESETPRIMASK
; Description : Assembler function to reset the PRIMASK.
; Input : None
; Return : None
;*******************************************************************************
__RESETPRIMASK
CPSIE i
BX r14
;*******************************************************************************
; Function Name : __SETPRIMASK
; Description : Assembler function to set the PRIMASK.
; Input : None
; Return : None
;*******************************************************************************
__SETPRIMASK
CPSID i
BX r14
;*******************************************************************************
; Function Name : __READ_PRIMASK
; Description : Assembler function to get the PRIMASK value.
; Input : None
; Return : - r0 : PRIMASK register value
;*******************************************************************************
__READ_PRIMASK
MRS r0, PRIMASK
BX r14
;*******************************************************************************
; Function Name : __RESETFAULTMASK
; Description : Assembler function to reset the FAULTMASK.
; Input : None
; Return : None
;*******************************************************************************
__RESETFAULTMASK
CPSIE f
BX r14
;*******************************************************************************
; Function Name : __SETFAULTMASK
; Description : Assembler function to set the FAULTMASK.
; Input : None
; Return : None
;*******************************************************************************
__SETFAULTMASK
CPSID f
BX r14
;*******************************************************************************
; Function Name : __READ_FAULTMASK
; Description : Assembler function to get the FAULTMASK value.
; Input : None
; Return : - r0 : FAULTMASK register value
;*******************************************************************************
__READ_FAULTMASK
MRS r0, FAULTMASK
BX r14
;*******************************************************************************
; Function Name : __BASEPRICONFIG
; Description : Assembler function to set the Base Priority.
; Input : - r0 : Base Priority new value
; Return : None
;*******************************************************************************
__BASEPRICONFIG
MSR BASEPRI, r0
BX r14
;*******************************************************************************
; Function Name : __GetBASEPRI
; Description : Assembler function to get the Base Priority value.
; Input : None
; Return : - r0 : Base Priority value
;*******************************************************************************
__GetBASEPRI
MRS r0, BASEPRI_MAX
BX r14
;*******************************************************************************
; Function Name : __REV_HalfWord
; Description : Reverses the byte order in HalfWord(16-bit) input variable.
; Input : - r0 : specifies the input variable
; Return : - r0 : holds tve variable value after byte reversing.
;*******************************************************************************
__REV_HalfWord
REV16 r0, r0
BX r14
;*******************************************************************************
; Function Name : __REV_Word
; Description : Reverses the byte order in Word(32-bit) input variable.
; Input : - r0 : specifies the input variable
; Return : - r0 : holds tve variable value after byte reversing.
;*******************************************************************************
__REV_Word
REV r0, r0
BX r14
END
;******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE*****
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