139 lines
2.7 KiB
ArmAsm
139 lines
2.7 KiB
ArmAsm
/* $NetBSD: romcalls.S,v 1.2 1999/12/17 07:33:20 tsubai Exp $ */
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/*-
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* Copyright (C) 1999 Tsubai Masanari. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <mips/asm.h>
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#include <mips/cpuregs.h>
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#include <machine/romcall.h>
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.text
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.align 2
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.set noreorder
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.globl halt
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halt:
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addu sp, sp, -16
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li a0, 8 # RB_HALT
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sw a0, 0(sp)
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li a0, SYS_reboot
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move a1, sp
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syscall
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nop
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.globl rom_open
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rom_open:
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addu sp, sp, -32
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sw ra, 28(sp)
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sw a0, 16(sp)
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sw a1, 20(sp)
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li a0, SYS_open
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addu a1, sp, 16
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syscall
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nop
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lw ra, 28(sp)
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addu sp, sp, 32
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j ra
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nop
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.globl rom_close
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rom_close:
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addu sp, sp, -32
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sw ra, 28(sp)
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sw a0, 16(sp)
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li a0, SYS_close
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addu a1, sp, 16
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syscall
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nop
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lw ra, 28(sp)
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addu sp, sp, 32
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j ra
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nop
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.globl rom_read
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rom_read:
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addu sp, sp, -32
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sw ra, 28(sp)
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sw a0, 16(sp)
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sw a1, 20(sp)
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sw a2, 24(sp)
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li a0, SYS_read
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addu a1, sp, 16
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syscall
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nop
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lw ra, 28(sp)
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addu sp, sp, 32
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j ra
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nop
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.globl rom_write
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rom_write:
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addu sp, sp, -32
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sw ra, 28(sp)
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sw a0, 16(sp)
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sw a1, 20(sp)
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sw a2, 24(sp)
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li a0, SYS_write
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addu a1, sp, 16
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syscall
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nop
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lw ra, 28(sp)
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addu sp, sp, 32
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j ra
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nop
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.globl rom_lseek
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rom_lseek:
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addu sp, sp, -32
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sw ra, 28(sp)
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sw a0, 16(sp)
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sw a1, 20(sp)
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sw a2, 24(sp)
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li a0, SYS_lseek
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addu a1, sp, 16
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syscall
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nop
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lw ra, 28(sp)
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addu sp, sp, 32
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j ra
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nop
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