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jeremybenn |
;******************** (C) COPYRIGHT 2007 STMicroelectronics ********************
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;* File Name : cortexm3_macro.s
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;* Author : MCD Application Team
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;* Date First Issued : 09/29/2006
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;* Description : Instruction wrappers for special Cortex-M3 instructions.
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;*******************************************************************************
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; History:
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; 05/21/2007: V0.3
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; 04/02/2007: V0.2
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; 02/05/2007: V0.1
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; 09/29/2006: V0.01
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;*******************************************************************************
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; THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
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; WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
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; AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
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; INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
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; CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
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; INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
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;*******************************************************************************
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THUMB
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REQUIRE8
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PRESERVE8
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AREA |.text|, CODE, READONLY, ALIGN=2
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; Exported functions
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EXPORT __WFI
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EXPORT __WFE
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EXPORT __SEV
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EXPORT __ISB
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EXPORT __DSB
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EXPORT __DMB
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EXPORT __SVC
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EXPORT __MRS_CONTROL
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EXPORT __MSR_CONTROL
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EXPORT __MRS_PSP
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EXPORT __MSR_PSP
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EXPORT __MRS_MSP
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EXPORT __MSR_MSP
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EXPORT __SETPRIMASK
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EXPORT __RESETPRIMASK
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EXPORT __SETFAULTMASK
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EXPORT __RESETFAULTMASK
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EXPORT __BASEPRICONFIG
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EXPORT __GetBASEPRI
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EXPORT __REV_HalfWord
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EXPORT __REV_Word
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;*******************************************************************************
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; Function Name : __WFI
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; Description : Assembler function for the WFI instruction.
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; Input : None
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; Return : None
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;*******************************************************************************
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__WFI
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WFI
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BX r14
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;*******************************************************************************
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; Function Name : __WFE
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; Description : Assembler function for the WFE instruction.
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; Input : None
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; Return : None
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;*******************************************************************************
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__WFE
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WFE
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BX r14
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;*******************************************************************************
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; Function Name : __SEV
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; Description : Assembler function for the SEV instruction.
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; Input : None
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; Return : None
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;*******************************************************************************
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__SEV
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SEV
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BX r14
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;*******************************************************************************
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; Function Name : __ISB
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; Description : Assembler function for the ISB instruction.
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; Input : None
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; Return : None
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;*******************************************************************************
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__ISB
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ISB
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BX r14
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;*******************************************************************************
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; Function Name : __DSB
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; Description : Assembler function for the DSB instruction.
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; Input : None
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; Return : None
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;*******************************************************************************
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__DSB
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DSB
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BX r14
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;*******************************************************************************
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; Function Name : __DMB
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; Description : Assembler function for the DMB instruction.
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; Input : None
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; Return : None
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;*******************************************************************************
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__DMB
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DMB
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BX r14
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;*******************************************************************************
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; Function Name : __SVC
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; Description : Assembler function for the SVC instruction.
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; Input : None
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; Return : None
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;*******************************************************************************
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__SVC
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SVC 0x01
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BX r14
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;*******************************************************************************
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; Function Name : __MRS_CONTROL
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; Description : Assembler function for the MRS instruction.
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; Input : None
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; Return : - r0 : Cortex-M3 CONTROL register value.
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;*******************************************************************************
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__MRS_CONTROL
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MRS r0, CONTROL
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BX r14
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;*******************************************************************************
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; Function Name : __MSR_CONTROL
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; Description : Assembler function for the MSR instruction.
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; Input : - r0 : Cortex-M3 CONTROL register new value.
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; Return : None
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;*******************************************************************************
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__MSR_CONTROL
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MSR CONTROL, r0
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ISB
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BX r14
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;*******************************************************************************
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; Function Name : __MRS_PSP
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; Description : Assembler function for the MRS instruction.
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; Input : None
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; Return : - r0 : Process Stack value.
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;*******************************************************************************
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__MRS_PSP
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MRS r0, PSP
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BX r14
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;*******************************************************************************
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; Function Name : __MSR_PSP
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; Description : Assembler function for the MSR instruction.
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; Input : - r0 : Process Stack new value.
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; Return : None
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;*******************************************************************************
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__MSR_PSP
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MSR PSP, r0 ; set Process Stack value
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BX r14
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;*******************************************************************************
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; Function Name : __MRS_MSP
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; Description : Assembler function for the MRS instruction.
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; Input : None
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; Return : - r0 : Main Stack value.
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;*******************************************************************************
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__MRS_MSP
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MRS r0, MSP
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BX r14
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;*******************************************************************************
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; Function Name : __MSR_MSP
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; Description : Assembler function for the MSR instruction.
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; Input : - r0 : Main Stack new value.
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; Return : None
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;*******************************************************************************
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__MSR_MSP
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MSR MSP, r0 ; set Main Stack value
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BX r14
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;*******************************************************************************
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; Function Name : __SETPRIMASK
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; Description : Assembler function to set the PRIMASK.
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; Input : None
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; Return : None
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;*******************************************************************************
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__SETPRIMASK
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CPSID i
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BX r14
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;*******************************************************************************
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; Function Name : __RESETPRIMASK
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; Description : Assembler function to reset the PRIMASK.
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; Input : None
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; Return : None
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;*******************************************************************************
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__RESETPRIMASK
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CPSIE i
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BX r14
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;*******************************************************************************
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; Function Name : __SETFAULTMASK
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; Description : Assembler function to set the FAULTMASK.
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; Input : None
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; Return : None
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;*******************************************************************************
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__SETFAULTMASK
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CPSID f
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BX r14
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;*******************************************************************************
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; Function Name : __RESETFAULTMASK
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; Description : Assembler function to reset the FAULTMASK.
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; Input : None
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; Return : None
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;*******************************************************************************
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__RESETFAULTMASK
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CPSIE f
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BX r14
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;*******************************************************************************
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; Function Name : __BASEPRICONFIG
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; Description : Assembler function to set the Base Priority.
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; Input : - r0 : Base Priority new value
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; Return : None
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;*******************************************************************************
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__BASEPRICONFIG
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MSR BASEPRI, r0
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BX r14
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;*******************************************************************************
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; Function Name : __GetBASEPRI
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; Description : Assembler function to get the Base Priority value.
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; Input : None
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; Return : - r0 : Base Priority value
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;*******************************************************************************
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__GetBASEPRI
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MRS r0, BASEPRI_MAX
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BX r14
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;*******************************************************************************
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; Function Name : __REV_HalfWord
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; Description : Reverses the byte order in HalfWord(16-bit) input variable.
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; Input : - r0 : specifies the input variable
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; Return : - r0 : holds tve variable value after byte reversing.
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;*******************************************************************************
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__REV_HalfWord
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REV16 r0, r0
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BX r14
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;*******************************************************************************
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; Function Name : __REV_Word
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; Description : Reverses the byte order in Word(32-bit) input variable.
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; Input : - r0 : specifies the input variable
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; Return : - r0 : holds tve variable value after byte reversing.
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;*******************************************************************************
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__REV_Word
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REV r0, r0
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BX r14
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END
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;******************* (C) COPYRIGHT 2007 STMicroelectronics *****END OF FILE*****
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