87 lines
2.8 KiB
C
87 lines
2.8 KiB
C
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/*
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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) 2013-2017 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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#include "py/mpstate.h"
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#if MICROPY_NLR_MIPS
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__attribute__((used)) unsigned int nlr_push_tail(nlr_buf_t *nlr);
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__asm(
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".globl nlr_push \n"
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"nlr_push: \n"
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".ent nlr_push \n"
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".frame $29, 0, $31 \n"
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".set noreorder \n"
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".cpload $25 \n"
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".set reorder \n"
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"sw $31, 8($4) \n" /* is the offset of regs in nlr_buf_t */
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"sw $30, 12($4) \n"
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"sw $29, 16($4) \n"
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"sw $28, 20($4) \n"
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"sw $23, 24($4) \n"
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"sw $22, 28($4) \n"
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"sw $21, 32($4) \n"
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"sw $20, 36($4) \n"
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"sw $19, 40($4) \n"
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"sw $18, 44($4) \n"
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"sw $17, 48($4) \n"
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"sw $16, 52($4) \n"
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#ifdef __pic__
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"la $25, nlr_push_tail \n"
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#endif
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"j nlr_push_tail \n"
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".end nlr_push \n"
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);
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NORETURN void nlr_jump(void *val) {
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MP_NLR_JUMP_HEAD(val, top)
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__asm(
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"move $4, %0 \n"
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"lw $31, 8($4) \n"
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"lw $30, 12($4) \n"
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"lw $29, 16($4) \n"
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"lw $28, 20($4) \n"
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"lw $23, 24($4) \n"
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"lw $22, 28($4) \n"
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"lw $21, 32($4) \n"
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"lw $20, 36($4) \n"
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"lw $19, 40($4) \n"
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"lw $18, 44($4) \n"
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"lw $17, 48($4) \n"
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"lw $16, 52($4) \n"
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"lui $2,1 \n" // set return value 1
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"j $31 \n"
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"nop \n"
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:
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: "r" (top)
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:
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);
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MP_UNREACHABLE
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}
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#endif // MICROPY_NLR_MIPS
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