mirror of https://github.com/wolfSSL/wolfBoot.git
143 lines
2.5 KiB
ArmAsm
143 lines
2.5 KiB
ArmAsm
/**
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* RISC-V bootup
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* Copyright (C) 2018 wolfSSL Inc.
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*
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* This file is part of wolfBoot.
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*
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* wolfBoot is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfBoot is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*
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*/
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.macro trap_entry
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addi sp, sp, -64
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sw x1, 0(sp)
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sw x5, 4(sp)
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sw x6, 8(sp)
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sw x7, 12(sp)
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sw x10, 16(sp)
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sw x11, 20(sp)
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sw x12, 24(sp)
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sw x13, 28(sp)
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sw x14, 32(sp)
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sw x15, 36(sp)
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sw x16, 40(sp)
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sw x17, 44(sp)
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sw x28, 48(sp)
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sw x29, 52(sp)
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sw x30, 56(sp)
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sw x31, 60(sp)
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.endm
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.macro trap_exit
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lw x1, 0(sp)
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lw x5, 4(sp)
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lw x6, 8(sp)
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lw x7, 12(sp)
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lw x10, 16(sp)
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lw x11, 20(sp)
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lw x12, 24(sp)
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lw x13, 28(sp)
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lw x14, 32(sp)
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lw x15, 36(sp)
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lw x16, 40(sp)
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lw x17, 44(sp)
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lw x28, 48(sp)
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lw x29, 52(sp)
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lw x30, 56(sp)
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lw x31, 60(sp)
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addi sp, sp, 64
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mret
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.endm
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.section .isr_vector
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.align 8
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.global IV
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IV:
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j _synctrap
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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j trap_empty
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.align 2
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_synctrap:
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trap_entry
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jal isr_synctrap
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trap_exit
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trap_empty:
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nop
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