URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [ARM7_STR71x_IAR/] [71x_vect.s] - Blame information for rev 654

Go to most recent revision | Details | Compare with Previous | View Log


#include "FreeRTOSConfig.h"
;******************** (C) COPYRIGHT 2003 STMicroelectronics ********************
;* File Name          : 71x_vect.s
;* Author             : MCD Application Team
;* Date First Issued  : 16/05/2003
;* Description        : This file used to initialize the exception and IRQ
;*                      vectors, and to enter/return to/from exceptions handlers.
;*******************************************************************************
;* History:
;*  13/01/2006 : V3.1
;*  24/05/2005 : V3.0
;*  30/11/2004 : V2.0
;*  14/07/2004 : V1.3
;*  01/01/2004 : V1.2
;*******************************************************************************
; THE PRESENT SOFTWARE 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 SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION
; CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
;*******************************************************************************/
 
                MODULE  ?RESET
                SECTION .intvec:CODE(2)
                CODE32
 
EIC_base_addr        EQU    0xFFFFF800; EIC base address.
CICR_off_addr        EQU    0x04      ; Current Interrupt Channel Register.
IVR_off_addr         EQU    0x18      ; Interrupt Vector Register.
IPR_off_addr         EQU    0x40      ; Interrupt Pending Register.
 
 
;*******************************************************************************
;              Import  the __iar_program_start address from 71x_init.s
;*******************************************************************************
 
        IMPORT  __iar_program_start
 
;*******************************************************************************
;                      Import exception handlers
;*******************************************************************************
 
        IMPORT  Undefined_Handler
        IMPORT  Prefetch_Handler
        IMPORT  Abort_Handler
        IMPORT  FIQ_Handler
 
;*******************************************************************************
;                   Import IRQ handlers from 71x_it.c
;*******************************************************************************
 
        IMPORT  Default_Handler
                IMPORT  vPortYieldProcessor
                IMPORT  vSerialISREntry
                IMPORT  vPortPreemptiveTickISR
                IMPORT  vPortNonPreemptiveTick
 
;*******************************************************************************
;            Export Peripherals IRQ handlers table address
;*******************************************************************************
 
        EXPORT  T0TIMI_Addr
 
;*******************************************************************************
;                        Exception vectors
;*******************************************************************************
IVR_ADDR                 DEFINE    0xFFFFF818
 
                LDR     PC, Reset_Addr
        LDR     PC, Undefined_Addr
        LDR     PC, SWI_Addr
        LDR     PC, Prefetch_Addr
        LDR     PC, Abort_Addr
        NOP                             ; Reserved vector
        LDR     PC, =IVR_ADDR
        LDR     PC, FIQ_Addr
 
;*******************************************************************************
;               Exception handlers address table
;*******************************************************************************
 
Reset_Addr      DCD     __iar_program_start
Undefined_Addr  DCD     UndefinedHandler
SWI_Addr        DCD     vPortYieldProcessor
Prefetch_Addr   DCD     PrefetchAbortHandler
Abort_Addr      DCD     DataAbortHandler
                DCD     0               ; Reserved vector
IRQ_Addr        DCD     0                            ; Direct vectors are used.  See the STR75x demo for an alternative implementation
FIQ_Addr        DCD     FIQHandler
 
;*******************************************************************************
;              Peripherals IRQ handlers address table
;*******************************************************************************
 
T0TIMI_Addr     DCD  Default_Handler
FLASH_Addr      DCD  Default_Handler
RCCU_Addr       DCD  Default_Handler
RTC_Addr        DCD  Default_Handler
#if configUSE_PREEMPTION == 0
WDG_Addr        DCD  vPortNonPreemptiveTick     ; Tick ISR if the cooperative scheduler is used.
#else
WDG_Addr                DCD  vPortPreemptiveTickISR     ; Tick ISR if the preemptive scheduler is used.
#endif
XTI_Addr        DCD  Default_Handler
USBHP_Addr      DCD  Default_Handler
I2C0ITERR_Addr  DCD  Default_Handler
I2C1ITERR_ADDR  DCD  Default_Handler
UART0_Addr      DCD  vSerialISREntry
UART1_Addr      DCD  Default_Handler
UART2_ADDR      DCD  Default_Handler
UART3_ADDR      DCD  Default_Handler
BSPI0_ADDR      DCD  Default_Handler
BSPI1_Addr      DCD  Default_Handler
I2C0_Addr       DCD  Default_Handler
I2C1_Addr       DCD  Default_Handler
CAN_Addr        DCD  Default_Handler
ADC12_Addr      DCD  Default_Handler
T1TIMI_Addr     DCD  Default_Handler
T2TIMI_Addr     DCD  Default_Handler
T3TIMI_Addr     DCD  Default_Handler
                DCD  0                  ; reserved
                DCD  0                  ; reserved
                DCD  0                  ; reserved
HDLC_Addr       DCD  Default_Handler
USBLP_Addr      DCD  Default_Handler
                DCD  0                  ; reserved
                DCD  0                  ; reserved
T0TOI_Addr      DCD  Default_Handler
T0OC1_Addr      DCD  Default_Handler
T0OC2_Addr      DCD  Default_Handler
 
 
;*******************************************************************************
;                         Exception Handlers
;*******************************************************************************
 
;*******************************************************************************
;* Macro Name     : SaveContext
;* Description    : This macro used to save the context before entering
;                   an exception handler.
;* Input          : The range of registers to store.
;* Output         : none
;*******************************************************************************
 
SaveContext MACRO reg1,reg2
 
        STMFD  sp!,{reg1-reg2,lr} ; Save The workspace plus the current return
                              ; address lr_ mode into the stack.
        MRS    r1,spsr        ; Save the spsr_mode into r1.
        STMFD  sp!,{r1}       ; Save spsr.
        ENDM
 
;*******************************************************************************
;* Macro Name     : RestoreContext
;* Description    : This macro used to restore the context to return from
;                   an exception handler and continue the program execution.
;* Input          : The range of registers to restore.
;* Output         : none
;*******************************************************************************
 
RestoreContext MACRO reg1,reg2
 
        LDMFD   sp!,{r1}        ; Restore the saved spsr_mode into r1.
        MSR     spsr_cxsf,r1    ; Restore spsr_mode.
        LDMFD   sp!,{reg1-reg2,pc}^; Return to the instruction following...
                                ; ...the exception interrupt.
        ENDM
 
;*******************************************************************************
;* Function Name  : UndefinedHandler
;* Description    : This function called when undefined instruction
;                   exception is entered.
;* Input          : none
;* Output         : none
;*******************************************************************************
UndefinedHandler
        SaveContext r0,r12           ; Save the workspace plus the current
                                     ; return address lr_ und and spsr_und.
        ldr r0,=Undefined_Handler
        ldr lr,=Undefined_Handler_end
        bx r0                        ; Branch to Undefined_Handler
Undefined_Handler_end:
        RestoreContext r0,r12        ; Return to the instruction following...
                                     ; ...the undefined instruction.
 
 
;*******************************************************************************
;* Function Name  : PrefetchAbortHandler
;* Description    : This function called when Prefetch Abort
;                   exception is entered.
;* Input          : none
;* Output         : none
;*******************************************************************************
 
PrefetchAbortHandler
        SUB    lr,lr,#4       ; Update the link register.
        SaveContext r0,r12    ; Save the workspace plus the current
                              ; return address lr_abt and spsr_abt.
        ldr r0,=Prefetch_Handler
        ldr lr,=Prefetch_Handler_end
 
        bx r0                 ; Branch to Prefetch_Handler.
Prefetch_Handler_end:
        RestoreContext r0,r12 ; Return to the instruction following that...
                              ; ...has generated the prefetch abort exception.
 
;*******************************************************************************
;* Function Name  : DataAbortHandler
;* Description    : This function is called when Data Abort
;                   exception is entered.
;* Input          : none
;* Output         : none
;*******************************************************************************
 
DataAbortHandler
        SUB    lr,lr,#8       ; Update the link register.
        SaveContext r0,r12    ; Save the workspace plus the current
                              ; return address lr_ abt and spsr_abt.
        ldr r0,=Abort_Handler
        ldr lr,=Abort_Handler_end
 
        bx r0                 ; Branch to Abort_Handler.
Abort_Handler_end:
        RestoreContext r0,r12 ; Return to the instruction following that...
                              ; ...has generated the data abort exception.
 
;*******************************************************************************
;* Function Name  : FIQHandler
;* Description    : This function is called when FIQ
;                   exception is entered.
;* Input          : none
;* Output         : none
;*******************************************************************************
 
FIQHandler
        SUB    lr,lr,#4       ; Update the link register.
        SaveContext r0,r7     ; Save the workspace plus the current
                              ; return address lr_ fiq and spsr_fiq.
        ldr r0,=FIQ_Handler
        ldr lr,=FIQ_Handler_end
 
        bx r0                 ; Branch to FIQ_Handler.
FIQ_Handler_end:
        RestoreContext r0,r7  ; Restore the context and return to the...
                              ; ...program execution.
 
 
 
                LTORG
 
  END
;******************* (C) COPYRIGHT 2003 STMicroelectronics *****END OF FILE****

Browse

Tools

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [ARM7_STR71x_IAR/] [71x_vect.s] - Blame information for rev 654

Line No.	Rev	Author	Line
1	577	jeremybenn	`#include "FreeRTOSConfig.h"`
2			`;****************** (C) COPYRIGHT 2003 STMicroelectronics ******************`
3			`;* File Name : 71x_vect.s`
4			`;* Author : MCD Application Team`
5			`;* Date First Issued : 16/05/2003`
6			`;* Description : This file used to initialize the exception and IRQ`
7			`;* vectors, and to enter/return to/from exceptions handlers.`
8			`;*******************************************************************************`
9			`;* History:`
10			`;* 13/01/2006 : V3.1`
11			`;* 24/05/2005 : V3.0`
12			`;* 30/11/2004 : V2.0`
13			`;* 14/07/2004 : V1.3`
14			`;* 01/01/2004 : V1.2`
15			`;*******************************************************************************`
16			`; THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH`
17			`; CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.`
18			`; AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, INDIRECT`
19			`; OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT`
20			`; OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION`
21			`; CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.`
22			`;*******************************************************************************/`
23
24			`MODULE ?RESET`
25			`SECTION .intvec:CODE(2)`
26			`CODE32`
27
28			`EIC_base_addr EQU 0xFFFFF800; EIC base address.`
29			`CICR_off_addr EQU 0x04 ; Current Interrupt Channel Register.`
30			`IVR_off_addr EQU 0x18 ; Interrupt Vector Register.`
31			`IPR_off_addr EQU 0x40 ; Interrupt Pending Register.`
32
33
34			`;*******************************************************************************`
35			`; Import the __iar_program_start address from 71x_init.s`
36			`;*******************************************************************************`
37
38			`IMPORT __iar_program_start`
39
40			`;*******************************************************************************`
41			`; Import exception handlers`
42			`;*******************************************************************************`
43
44			`IMPORT Undefined_Handler`
45			`IMPORT Prefetch_Handler`
46			`IMPORT Abort_Handler`
47			`IMPORT FIQ_Handler`
48
49			`;*******************************************************************************`
50			`; Import IRQ handlers from 71x_it.c`
51			`;*******************************************************************************`
52
53			`IMPORT Default_Handler`
54			`IMPORT vPortYieldProcessor`
55			`IMPORT vSerialISREntry`
56			`IMPORT vPortPreemptiveTickISR`
57			`IMPORT vPortNonPreemptiveTick`
58
59			`;*******************************************************************************`
60			`; Export Peripherals IRQ handlers table address`
61			`;*******************************************************************************`
62
63			`EXPORT T0TIMI_Addr`
64
65			`;*******************************************************************************`
66			`; Exception vectors`
67			`;*******************************************************************************`
68			`IVR_ADDR DEFINE 0xFFFFF818`
69
70			`LDR PC, Reset_Addr`
71			`LDR PC, Undefined_Addr`
72			`LDR PC, SWI_Addr`
73			`LDR PC, Prefetch_Addr`
74			`LDR PC, Abort_Addr`
75			`NOP ; Reserved vector`
76			`LDR PC, =IVR_ADDR`
77			`LDR PC, FIQ_Addr`
78
79			`;*******************************************************************************`
80			`; Exception handlers address table`
81			`;*******************************************************************************`
82
83			`Reset_Addr DCD __iar_program_start`
84			`Undefined_Addr DCD UndefinedHandler`
85			`SWI_Addr DCD vPortYieldProcessor`
86			`Prefetch_Addr DCD PrefetchAbortHandler`
87			`Abort_Addr DCD DataAbortHandler`
88			`DCD 0 ; Reserved vector`
89			`IRQ_Addr DCD 0 ; Direct vectors are used. See the STR75x demo for an alternative implementation`
90			`FIQ_Addr DCD FIQHandler`
91
92			`;*******************************************************************************`
93			`; Peripherals IRQ handlers address table`
94			`;*******************************************************************************`
95
96			`T0TIMI_Addr DCD Default_Handler`
97			`FLASH_Addr DCD Default_Handler`
98			`RCCU_Addr DCD Default_Handler`
99			`RTC_Addr DCD Default_Handler`
100			`#if configUSE_PREEMPTION == 0`
101			`WDG_Addr DCD vPortNonPreemptiveTick ; Tick ISR if the cooperative scheduler is used.`
102			`#else`
103			`WDG_Addr DCD vPortPreemptiveTickISR ; Tick ISR if the preemptive scheduler is used.`
104			`#endif`
105			`XTI_Addr DCD Default_Handler`
106			`USBHP_Addr DCD Default_Handler`
107			`I2C0ITERR_Addr DCD Default_Handler`
108			`I2C1ITERR_ADDR DCD Default_Handler`
109			`UART0_Addr DCD vSerialISREntry`
110			`UART1_Addr DCD Default_Handler`
111			`UART2_ADDR DCD Default_Handler`
112			`UART3_ADDR DCD Default_Handler`
113			`BSPI0_ADDR DCD Default_Handler`
114			`BSPI1_Addr DCD Default_Handler`
115			`I2C0_Addr DCD Default_Handler`
116			`I2C1_Addr DCD Default_Handler`
117			`CAN_Addr DCD Default_Handler`
118			`ADC12_Addr DCD Default_Handler`
119			`T1TIMI_Addr DCD Default_Handler`
120			`T2TIMI_Addr DCD Default_Handler`
121			`T3TIMI_Addr DCD Default_Handler`
122			`DCD 0 ; reserved`
123			`DCD 0 ; reserved`
124			`DCD 0 ; reserved`
125			`HDLC_Addr DCD Default_Handler`
126			`USBLP_Addr DCD Default_Handler`
127			`DCD 0 ; reserved`
128			`DCD 0 ; reserved`
129			`T0TOI_Addr DCD Default_Handler`
130			`T0OC1_Addr DCD Default_Handler`
131			`T0OC2_Addr DCD Default_Handler`
132
133
134			`;*******************************************************************************`
135			`; Exception Handlers`
136			`;*******************************************************************************`
137
138			`;*******************************************************************************`
139			`;* Macro Name : SaveContext`
140			`;* Description : This macro used to save the context before entering`
141			`; an exception handler.`
142			`;* Input : The range of registers to store.`
143			`;* Output : none`
144			`;*******************************************************************************`
145
146			`SaveContext MACRO reg1,reg2`
147
148			`STMFD sp!,{reg1-reg2,lr} ; Save The workspace plus the current return`
149			`; address lr_ mode into the stack.`
150			`MRS r1,spsr ; Save the spsr_mode into r1.`
151			`STMFD sp!,{r1} ; Save spsr.`
152			`ENDM`
153
154			`;*******************************************************************************`
155			`;* Macro Name : RestoreContext`
156			`;* Description : This macro used to restore the context to return from`
157			`; an exception handler and continue the program execution.`
158			`;* Input : The range of registers to restore.`
159			`;* Output : none`
160			`;*******************************************************************************`
161
162			`RestoreContext MACRO reg1,reg2`
163
164			`LDMFD sp!,{r1} ; Restore the saved spsr_mode into r1.`
165			`MSR spsr_cxsf,r1 ; Restore spsr_mode.`
166			`LDMFD sp!,{reg1-reg2,pc}^; Return to the instruction following...`
167			`; ...the exception interrupt.`
168			`ENDM`
169
170			`;*******************************************************************************`
171			`;* Function Name : UndefinedHandler`
172			`;* Description : This function called when undefined instruction`
173			`; exception is entered.`
174			`;* Input : none`
175			`;* Output : none`
176			`;*******************************************************************************`
177			`UndefinedHandler`
178			`SaveContext r0,r12 ; Save the workspace plus the current`
179			`; return address lr_ und and spsr_und.`
180			`ldr r0,=Undefined_Handler`
181			`ldr lr,=Undefined_Handler_end`
182			`bx r0 ; Branch to Undefined_Handler`
183			`Undefined_Handler_end:`
184			`RestoreContext r0,r12 ; Return to the instruction following...`
185			`; ...the undefined instruction.`
186
187
188			`;*******************************************************************************`
189			`;* Function Name : PrefetchAbortHandler`
190			`;* Description : This function called when Prefetch Abort`
191			`; exception is entered.`
192			`;* Input : none`
193			`;* Output : none`
194			`;*******************************************************************************`
195
196			`PrefetchAbortHandler`
197			`SUB lr,lr,#4 ; Update the link register.`
198			`SaveContext r0,r12 ; Save the workspace plus the current`
199			`; return address lr_abt and spsr_abt.`
200			`ldr r0,=Prefetch_Handler`
201			`ldr lr,=Prefetch_Handler_end`
202
203			`bx r0 ; Branch to Prefetch_Handler.`
204			`Prefetch_Handler_end:`
205			`RestoreContext r0,r12 ; Return to the instruction following that...`
206			`; ...has generated the prefetch abort exception.`
207
208			`;*******************************************************************************`
209			`;* Function Name : DataAbortHandler`
210			`;* Description : This function is called when Data Abort`
211			`; exception is entered.`
212			`;* Input : none`
213			`;* Output : none`
214			`;*******************************************************************************`
215
216			`DataAbortHandler`
217			`SUB lr,lr,#8 ; Update the link register.`
218			`SaveContext r0,r12 ; Save the workspace plus the current`
219			`; return address lr_ abt and spsr_abt.`
220			`ldr r0,=Abort_Handler`
221			`ldr lr,=Abort_Handler_end`
222
223			`bx r0 ; Branch to Abort_Handler.`
224			`Abort_Handler_end:`
225			`RestoreContext r0,r12 ; Return to the instruction following that...`
226			`; ...has generated the data abort exception.`
227
228			`;*******************************************************************************`
229			`;* Function Name : FIQHandler`
230			`;* Description : This function is called when FIQ`
231			`; exception is entered.`
232			`;* Input : none`
233			`;* Output : none`
234			`;*******************************************************************************`
235
236			`FIQHandler`
237			`SUB lr,lr,#4 ; Update the link register.`
238			`SaveContext r0,r7 ; Save the workspace plus the current`
239			`; return address lr_ fiq and spsr_fiq.`
240			`ldr r0,=FIQ_Handler`
241			`ldr lr,=FIQ_Handler_end`
242
243			`bx r0 ; Branch to FIQ_Handler.`
244			`FIQ_Handler_end:`
245			`RestoreContext r0,r7 ; Restore the context and return to the...`
246			`; ...program execution.`
247
248
249
250			`LTORG`
251
252			`END`
253			`;***************** (C) COPYRIGHT 2003 STMicroelectronics *END OF FILE**`