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Add native gchelper support for 64 bits RISC-V RV64I targets. Now that RV64 is under CI, this also enables platform-specific ghelper in the Unix port. Also changes the data type holding the register contents to something more appropriate, so in the remote eventuality somebody wants to use this with RV128 all they have to do is update the `__riscv_xlen` check. Signed-off-by: Alessandro Gatti <a.gatti@frob.it>
53 lines
2.0 KiB
ArmAsm
53 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) 2024 Alessandro Gatti
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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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.global gc_helper_get_regs_and_sp
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.type gc_helper_get_regs_and_sp, @function
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gc_helper_get_regs_and_sp:
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/* Store registers into the given array. */
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sw x8, 0(x10) /* Save S0. */
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sw x9, 8(x10) /* Save S1. */
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sw x18, 16(x10) /* Save S2. */
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sw x19, 24(x10) /* Save S3. */
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sw x20, 32(x10) /* Save S4. */
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sw x21, 40(x10) /* Save S5. */
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sw x22, 48(x10) /* Save S6. */
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sw x23, 56(x10) /* Save S7. */
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sw x24, 64(x10) /* Save S8. */
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sw x25, 72(x10) /* Save S9. */
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sw x26, 80(x10) /* Save S10. */
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sw x27, 88(x10) /* Save S11. */
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/* Return the stack pointer. */
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add x10, x0, x2
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jalr x0, x1, 0
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.size gc_helper_get_regs_and_sp, .-gc_helper_get_regs_and_sp
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