64 lines
2.0 KiB
ArmAsm
64 lines
2.0 KiB
ArmAsm
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2018 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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.syntax unified
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.thumb
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.section .text
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.align 2
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.global gc_helper_get_regs_and_sp
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.type gc_helper_get_regs_and_sp, %function
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@ This function will compile on processors like Cortex M0 that don't support
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@ newer Thumb-2 instructions.
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@ uint gc_helper_get_regs_and_sp(r0=uint regs[10])
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gc_helper_get_regs_and_sp:
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@ store registers into given array
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str r4, [r0, #0]
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str r5, [r0, #4]
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str r6, [r0, #8]
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str r7, [r0, #12]
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mov r1, r8
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str r1, [r0, #16]
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mov r1, r9
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str r1, [r0, #20]
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mov r1, r10
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str r1, [r0, #24]
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mov r1, r11
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str r1, [r0, #28]
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mov r1, r12
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str r1, [r0, #32]
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mov r1, r13
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str r1, [r0, #36]
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@ return the sp
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mov r0, sp
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bx lr
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.size gc_helper_get_regs_and_sp, .-gc_helper_get_regs_and_sp
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