diff options
Diffstat (limited to 'ports/ARM7/crt0.s')
| -rw-r--r-- | ports/ARM7/crt0.s | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/ports/ARM7/crt0.s b/ports/ARM7/crt0.s deleted file mode 100644 index 91d07935b..000000000 --- a/ports/ARM7/crt0.s +++ /dev/null @@ -1,181 +0,0 @@ -/*
- ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
-
- This file is part of ChibiOS/RT.
-
- ChibiOS/RT is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
-
- ChibiOS/RT is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-/**
- * @file ports/ARM7/crt0.s
- * @brief Generic ARM7 startup file for ChibiOS/RT.
- * @addtogroup ARM7_CORE
- * @{
- */
-/** @cond never */
-
-.set MODE_USR, 0x10
-.set MODE_FIQ, 0x11
-.set MODE_IRQ, 0x12
-.set MODE_SVC, 0x13
-.set MODE_ABT, 0x17
-.set MODE_UND, 0x1B
-.set MODE_SYS, 0x1F
-
-.equ I_BIT, 0x80
-.equ F_BIT, 0x40
-
-.text
-.code 32
-.balign 4
-
-/*
- * Reset handler.
- */
-.global ResetHandler
-ResetHandler:
- /*
- * Stack pointers initialization.
- */
- ldr r0, =__ram_end__
- /* Undefined */
- msr CPSR_c, #MODE_UND | I_BIT | F_BIT
- mov sp, r0
- ldr r1, =__und_stack_size__
- sub r0, r0, r1
- /* Abort */
- msr CPSR_c, #MODE_ABT | I_BIT | F_BIT
- mov sp, r0
- ldr r1, =__abt_stack_size__
- sub r0, r0, r1
- /* FIQ */
- msr CPSR_c, #MODE_FIQ | I_BIT | F_BIT
- mov sp, r0
- ldr r1, =__fiq_stack_size__
- sub r0, r0, r1
- /* IRQ */
- msr CPSR_c, #MODE_IRQ | I_BIT | F_BIT
- mov sp, r0
- ldr r1, =__irq_stack_size__
- sub r0, r0, r1
- /* Supervisor */
- msr CPSR_c, #MODE_SVC | I_BIT | F_BIT
- mov sp, r0
- ldr r1, =__svc_stack_size__
- sub r0, r0, r1
- /* System */
- msr CPSR_c, #MODE_SYS | I_BIT | F_BIT
- mov sp, r0
-// ldr r1, =__sys_stack_size__
-// sub r0, r0, r1
- /*
- * Early initialization.
- */
-#ifndef THUMB_NO_INTERWORKING
- bl hwinit0
-#else
- add r0, pc, #1
- bx r0
-.code 16
- bl hwinit0
- mov r0, pc
- bx r0
-.code 32
-#endif
- /*
- * Data initialization.
- * NOTE: It assumes that the DATA size is a multiple of 4.
- */
- ldr r1, =_textdata
- ldr r2, =_data
- ldr r3, =_edata
-dataloop:
- cmp r2, r3
- ldrlo r0, [r1], #4
- strlo r0, [r2], #4
- blo dataloop
- /*
- * BSS initialization.
- * NOTE: It assumes that the BSS size is a multiple of 4.
- */
- mov r0, #0
- ldr r1, =_bss_start
- ldr r2, =_bss_end
-bssloop:
- cmp r1, r2
- strlo r0, [r1], #4
- blo bssloop
- /*
- * Late initialization.
- */
-#ifdef THUMB_NO_INTERWORKING
- add r0, pc, #1
- bx r0
-.code 16
- bl hwinit1
- mov r0, #0
- mov r1, r0
- bl main
- ldr r1, =MainExitHandler
- bx r1
-.code 32
-#else
- bl hwinit1
- mov r0, #0
- mov r1, r0
- bl main
- b MainExitHandler
-#endif
-
-/*
- * Default main function exit handler.
- */
-.weak MainExitHandler
-.globl MainExitHandler
-MainExitHandler:
-
-.loop: b .loop
-
-/*
- * Default early initialization code. It is declared weak in order to be
- * replaced by the real initialization code.
- * Early initialization is performed just after reset before BSS and DATA
- * segments initialization.
- */
-#ifdef THUMB_NO_INTERWORKING
-.thumb_func
-.code 16
-#endif
-.weak hwinit0
-hwinit0:
- bx lr
-.code 32
-
-/*
- * Default late initialization code. It is declared weak in order to be
- * replaced by the real initialization code.
- * Late initialization is performed after BSS and DATA segments initialization
- * and before invoking the main() function.
- */
-#ifdef THUMB_NO_INTERWORKING
-.thumb_func
-.code 16
-#endif
-.weak hwinit1
-hwinit1:
- bx lr
-.code 32
-
-/** @endcond */
-/** @} */
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