| 1 |
582 |
jeremybenn |
;******************** (C) COPYRIGHT 2007 STMicroelectronics ********************
|
| 2 |
|
|
;* File Name : cortexm3_macro.s
|
| 3 |
|
|
;* Author : MCD Application Team
|
| 4 |
|
|
;* Date First Issued : 02/19/2007
|
| 5 |
|
|
;* Description : Instruction wrappers for special Cortex-M3 instructions.
|
| 6 |
|
|
;*******************************************************************************
|
| 7 |
|
|
; History:
|
| 8 |
|
|
; 04/02/2007: V0.2
|
| 9 |
|
|
; 02/19/2007: V0.1
|
| 10 |
|
|
;*******************************************************************************
|
| 11 |
|
|
; THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
|
| 12 |
|
|
; WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
|
| 13 |
|
|
; AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
|
| 14 |
|
|
; INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
|
| 15 |
|
|
; CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
|
| 16 |
|
|
; INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
|
| 17 |
|
|
;*******************************************************************************
|
| 18 |
|
|
|
| 19 |
|
|
SECTION .text:CODE(2)
|
| 20 |
|
|
|
| 21 |
|
|
; Exported functions
|
| 22 |
|
|
EXPORT __WFI
|
| 23 |
|
|
EXPORT __WFE
|
| 24 |
|
|
EXPORT __SEV
|
| 25 |
|
|
EXPORT __ISB
|
| 26 |
|
|
EXPORT __DSB
|
| 27 |
|
|
EXPORT __DMB
|
| 28 |
|
|
EXPORT __SVC
|
| 29 |
|
|
EXPORT __MRS_CONTROL
|
| 30 |
|
|
EXPORT __MSR_CONTROL
|
| 31 |
|
|
EXPORT __MRS_PSP
|
| 32 |
|
|
EXPORT __MSR_PSP
|
| 33 |
|
|
EXPORT __MRS_MSP
|
| 34 |
|
|
EXPORT __MSR_MSP
|
| 35 |
|
|
EXPORT __SETPRIMASK
|
| 36 |
|
|
EXPORT __RESETPRIMASK
|
| 37 |
|
|
EXPORT __SETFAULTMASK
|
| 38 |
|
|
EXPORT __RESETFAULTMASK
|
| 39 |
|
|
EXPORT __BASEPRICONFIG
|
| 40 |
|
|
EXPORT __GetBASEPRI
|
| 41 |
|
|
EXPORT __REV_HalfWord
|
| 42 |
|
|
EXPORT __REV_Word
|
| 43 |
|
|
|
| 44 |
|
|
;*******************************************************************************
|
| 45 |
|
|
; Function Name : __WFI
|
| 46 |
|
|
; Description : Assembler function for the WFI instruction.
|
| 47 |
|
|
; Input : None
|
| 48 |
|
|
; Return : None
|
| 49 |
|
|
;*******************************************************************************
|
| 50 |
|
|
__WFI
|
| 51 |
|
|
|
| 52 |
|
|
WFI
|
| 53 |
|
|
BX r14
|
| 54 |
|
|
|
| 55 |
|
|
;*******************************************************************************
|
| 56 |
|
|
; Function Name : __WFE
|
| 57 |
|
|
; Description : Assembler function for the WFE instruction.
|
| 58 |
|
|
; Input : None
|
| 59 |
|
|
; Return : None
|
| 60 |
|
|
;*******************************************************************************
|
| 61 |
|
|
__WFE
|
| 62 |
|
|
|
| 63 |
|
|
WFE
|
| 64 |
|
|
BX r14
|
| 65 |
|
|
|
| 66 |
|
|
;*******************************************************************************
|
| 67 |
|
|
; Function Name : __SEV
|
| 68 |
|
|
; Description : Assembler function for the SEV instruction.
|
| 69 |
|
|
; Input : None
|
| 70 |
|
|
; Return : None
|
| 71 |
|
|
;*******************************************************************************
|
| 72 |
|
|
__SEV
|
| 73 |
|
|
|
| 74 |
|
|
SEV
|
| 75 |
|
|
BX r14
|
| 76 |
|
|
|
| 77 |
|
|
;*******************************************************************************
|
| 78 |
|
|
; Function Name : __ISB
|
| 79 |
|
|
; Description : Assembler function for the ISB instruction.
|
| 80 |
|
|
; Input : None
|
| 81 |
|
|
; Return : None
|
| 82 |
|
|
;*******************************************************************************
|
| 83 |
|
|
__ISB
|
| 84 |
|
|
|
| 85 |
|
|
ISB
|
| 86 |
|
|
BX r14
|
| 87 |
|
|
|
| 88 |
|
|
;*******************************************************************************
|
| 89 |
|
|
; Function Name : __DSB
|
| 90 |
|
|
; Description : Assembler function for the DSB instruction.
|
| 91 |
|
|
; Input : None
|
| 92 |
|
|
; Return : None
|
| 93 |
|
|
;*******************************************************************************
|
| 94 |
|
|
__DSB
|
| 95 |
|
|
|
| 96 |
|
|
DSB
|
| 97 |
|
|
BX r14
|
| 98 |
|
|
|
| 99 |
|
|
;*******************************************************************************
|
| 100 |
|
|
; Function Name : __DMB
|
| 101 |
|
|
; Description : Assembler function for the DMB instruction.
|
| 102 |
|
|
; Input : None
|
| 103 |
|
|
; Return : None
|
| 104 |
|
|
;*******************************************************************************
|
| 105 |
|
|
__DMB
|
| 106 |
|
|
|
| 107 |
|
|
DMB
|
| 108 |
|
|
BX r14
|
| 109 |
|
|
|
| 110 |
|
|
;*******************************************************************************
|
| 111 |
|
|
; Function Name : __SVC
|
| 112 |
|
|
; Description : Assembler function for the SVC instruction.
|
| 113 |
|
|
; Input : None
|
| 114 |
|
|
; Return : None
|
| 115 |
|
|
;*******************************************************************************
|
| 116 |
|
|
__SVC
|
| 117 |
|
|
|
| 118 |
|
|
SVC 0x01
|
| 119 |
|
|
BX r14
|
| 120 |
|
|
|
| 121 |
|
|
;*******************************************************************************
|
| 122 |
|
|
; Function Name : __MRS_CONTROL
|
| 123 |
|
|
; Description : Assembler function for the MRS instruction.
|
| 124 |
|
|
; Input : None
|
| 125 |
|
|
; Return : - r0 : Cortex-M3 CONTROL register value.
|
| 126 |
|
|
;*******************************************************************************
|
| 127 |
|
|
__MRS_CONTROL
|
| 128 |
|
|
|
| 129 |
|
|
MRS r0, CONTROL
|
| 130 |
|
|
BX r14
|
| 131 |
|
|
|
| 132 |
|
|
;*******************************************************************************
|
| 133 |
|
|
; Function Name : __MSR_CONTROL
|
| 134 |
|
|
; Description : Assembler function for the MSR instruction.
|
| 135 |
|
|
; Input : - r0 : Cortex-M3 CONTROL register new value.
|
| 136 |
|
|
; Return : None
|
| 137 |
|
|
;*******************************************************************************
|
| 138 |
|
|
__MSR_CONTROL
|
| 139 |
|
|
|
| 140 |
|
|
MSR CONTROL, r0
|
| 141 |
|
|
ISB
|
| 142 |
|
|
BX r14
|
| 143 |
|
|
|
| 144 |
|
|
;*******************************************************************************
|
| 145 |
|
|
; Function Name : __MRS_PSP
|
| 146 |
|
|
; Description : Assembler function for the MRS instruction.
|
| 147 |
|
|
; Input : None
|
| 148 |
|
|
; Return : - r0 : Process Stack value.
|
| 149 |
|
|
;*******************************************************************************
|
| 150 |
|
|
__MRS_PSP
|
| 151 |
|
|
|
| 152 |
|
|
MRS r0, PSP
|
| 153 |
|
|
BX r14
|
| 154 |
|
|
|
| 155 |
|
|
;*******************************************************************************
|
| 156 |
|
|
; Function Name : __MSR_PSP
|
| 157 |
|
|
; Description : Assembler function for the MSR instruction.
|
| 158 |
|
|
; Input : - r0 : Process Stack new value.
|
| 159 |
|
|
; Return : None
|
| 160 |
|
|
;*******************************************************************************
|
| 161 |
|
|
__MSR_PSP
|
| 162 |
|
|
|
| 163 |
|
|
MSR PSP, r0 ; set Process Stack value
|
| 164 |
|
|
BX r14
|
| 165 |
|
|
|
| 166 |
|
|
;*******************************************************************************
|
| 167 |
|
|
; Function Name : __MRS_MSP
|
| 168 |
|
|
; Description : Assembler function for the MRS instruction.
|
| 169 |
|
|
; Input : None
|
| 170 |
|
|
; Return : - r0 : Main Stack value.
|
| 171 |
|
|
;*******************************************************************************
|
| 172 |
|
|
__MRS_MSP
|
| 173 |
|
|
|
| 174 |
|
|
MRS r0, MSP
|
| 175 |
|
|
BX r14
|
| 176 |
|
|
|
| 177 |
|
|
;*******************************************************************************
|
| 178 |
|
|
; Function Name : __MSR_MSP
|
| 179 |
|
|
; Description : Assembler function for the MSR instruction.
|
| 180 |
|
|
; Input : - r0 : Main Stack new value.
|
| 181 |
|
|
; Return : None
|
| 182 |
|
|
;*******************************************************************************
|
| 183 |
|
|
__MSR_MSP
|
| 184 |
|
|
|
| 185 |
|
|
MSR MSP, r0 ; set Main Stack value
|
| 186 |
|
|
BX r14
|
| 187 |
|
|
|
| 188 |
|
|
;*******************************************************************************
|
| 189 |
|
|
; Function Name : __SETPRIMASK
|
| 190 |
|
|
; Description : Assembler function to set the PRIMASK.
|
| 191 |
|
|
; Input : None
|
| 192 |
|
|
; Return : None
|
| 193 |
|
|
;*******************************************************************************
|
| 194 |
|
|
__SETPRIMASK
|
| 195 |
|
|
|
| 196 |
|
|
CPSID i
|
| 197 |
|
|
BX r14
|
| 198 |
|
|
|
| 199 |
|
|
;*******************************************************************************
|
| 200 |
|
|
; Function Name : __RESETPRIMASK
|
| 201 |
|
|
; Description : Assembler function to reset the PRIMASK.
|
| 202 |
|
|
; Input : None
|
| 203 |
|
|
; Return : None
|
| 204 |
|
|
;*******************************************************************************
|
| 205 |
|
|
__RESETPRIMASK
|
| 206 |
|
|
|
| 207 |
|
|
CPSIE i
|
| 208 |
|
|
BX r14
|
| 209 |
|
|
|
| 210 |
|
|
;*******************************************************************************
|
| 211 |
|
|
; Function Name : __SETFAULTMASK
|
| 212 |
|
|
; Description : Assembler function to set the FAULTMASK.
|
| 213 |
|
|
; Input : None
|
| 214 |
|
|
; Return : None
|
| 215 |
|
|
;*******************************************************************************
|
| 216 |
|
|
__SETFAULTMASK
|
| 217 |
|
|
|
| 218 |
|
|
CPSID f
|
| 219 |
|
|
BX r14
|
| 220 |
|
|
|
| 221 |
|
|
;*******************************************************************************
|
| 222 |
|
|
; Function Name : __RESETFAULTMASK
|
| 223 |
|
|
; Description : Assembler function to reset the FAULTMASK.
|
| 224 |
|
|
; Input : None
|
| 225 |
|
|
; Return : None
|
| 226 |
|
|
;*******************************************************************************
|
| 227 |
|
|
__RESETFAULTMASK
|
| 228 |
|
|
|
| 229 |
|
|
CPSIE f
|
| 230 |
|
|
BX r14
|
| 231 |
|
|
|
| 232 |
|
|
;*******************************************************************************
|
| 233 |
|
|
; Function Name : __BASEPRICONFIG
|
| 234 |
|
|
; Description : Assembler function to set the Base Priority.
|
| 235 |
|
|
; Input : - r0 : Base Priority new value
|
| 236 |
|
|
; Return : None
|
| 237 |
|
|
;*******************************************************************************
|
| 238 |
|
|
__BASEPRICONFIG
|
| 239 |
|
|
|
| 240 |
|
|
MSR BASEPRI, r0
|
| 241 |
|
|
BX r14
|
| 242 |
|
|
|
| 243 |
|
|
;*******************************************************************************
|
| 244 |
|
|
; Function Name : __GetBASEPRI
|
| 245 |
|
|
; Description : Assembler function to get the Base Priority value.
|
| 246 |
|
|
; Input : None
|
| 247 |
|
|
; Return : - r0 : Base Priority value
|
| 248 |
|
|
;*******************************************************************************
|
| 249 |
|
|
__GetBASEPRI
|
| 250 |
|
|
|
| 251 |
|
|
MRS r0, BASEPRI_MAX
|
| 252 |
|
|
BX r14
|
| 253 |
|
|
|
| 254 |
|
|
;*******************************************************************************
|
| 255 |
|
|
; Function Name : __REV_HalfWord
|
| 256 |
|
|
; Description : Reverses the byte order in HalfWord(16-bit) input variable.
|
| 257 |
|
|
; Input : - r0 : specifies the input variable
|
| 258 |
|
|
; Return : - r0 : holds tve variable value after byte reversing.
|
| 259 |
|
|
;*******************************************************************************
|
| 260 |
|
|
__REV_HalfWord
|
| 261 |
|
|
|
| 262 |
|
|
REV16 r0, r0
|
| 263 |
|
|
BX r14
|
| 264 |
|
|
|
| 265 |
|
|
;*******************************************************************************
|
| 266 |
|
|
; Function Name : __REV_Word
|
| 267 |
|
|
; Description : Reverses the byte order in Word(32-bit) input variable.
|
| 268 |
|
|
; Input : - r0 : specifies the input variable
|
| 269 |
|
|
; Return : - r0 : holds tve variable value after byte reversing.
|
| 270 |
|
|
;*******************************************************************************
|
| 271 |
|
|
__REV_Word
|
| 272 |
|
|
|
| 273 |
|
|
REV r0, r0
|
| 274 |
|
|
BX r14
|
| 275 |
|
|
|
| 276 |
|
|
END
|
| 277 |
|
|
|
| 278 |
|
|
;******************* (C) COPYRIGHT 2007 STMicroelectronics *****END OF FILE*****
|
