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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013-2014 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
.syntax unified
.cpu cortex-m3
.thumb
.section .text
.align 2
.global gc_helper_get_sp
.type gc_helper_get_sp, %function
@ uint gc_helper_get_sp(void)
gc_helper_get_sp:
@ return the sp
mov r0, sp
bx lr
.size gc_helper_get_sp, .-gc_helper_get_sp
.global gc_helper_get_regs_and_sp
.type gc_helper_get_regs_and_sp, %function
@ uint gc_helper_get_regs_and_sp(r0=uint regs[10])
gc_helper_get_regs_and_sp:
@ store registers into given array
str r4, [r0], #4
str r5, [r0], #4
str r6, [r0], #4
str r7, [r0], #4
str r8, [r0], #4
str r9, [r0], #4
str r10, [r0], #4
str r11, [r0], #4
str r12, [r0], #4
str r13, [r0], #4
@ return the sp
mov r0, sp
bx lr
.size gc_helper_get_regs_and_sp, .-gc_helper_get_regs_and_sp
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