/*      $NetBSD: romcalls.S,v 1.5 2003/04/18 18:52:27 tsutsui Exp $     */

/*-
 * Copyright (C) 1999 Tsubai Masanari.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <mips/asm.h>
#include <mips/cpuregs.h>
#include <machine/romcall.h>

        .text
        .align  2
        .set    noreorder

LEAF_NOPROFILE(rom_halt)
        addu    sp, sp, -16
        li      a0, 8           # RB_HALT
        sw      a0, 0(sp)
        li      a0, SYS_reboot
        move    a1, sp
        syscall
        nop
END(rom_halt)

LEAF_NOPROFILE(rom_open)
        addu    sp, sp, -32
        sw      ra, 28(sp)

        sw      a0, 16(sp)
        sw      a1, 20(sp)

        li      a0, SYS_open
        addu    a1, sp, 16
        syscall
        nop

        lw      ra, 28(sp)
        addu    sp, sp, 32
        j       ra
        nop
END(rom_open)

LEAF_NOPROFILE(rom_close)
        addu    sp, sp, -32
        sw      ra, 28(sp)

        sw      a0, 16(sp)

        li      a0, SYS_close
        addu    a1, sp, 16
        syscall
        nop

        lw      ra, 28(sp)
        addu    sp, sp, 32
        j       ra
        nop
END(rom_close)

LEAF_NOPROFILE(rom_read)
        addu    sp, sp, -32
        sw      ra, 28(sp)

        sw      a0, 16(sp)
        sw      a1, 20(sp)
        sw      a2, 24(sp)

        li      a0, SYS_read
        addu    a1, sp, 16
        syscall
        nop

        lw      ra, 28(sp)
        addu    sp, sp, 32
        j       ra
        nop
END(rom_read)

LEAF_NOPROFILE(rom_write)
        addu    sp, sp, -32
        sw      ra, 28(sp)

        sw      a0, 16(sp)
        sw      a1, 20(sp)
        sw      a2, 24(sp)

        li      a0, SYS_write
        addu    a1, sp, 16
        syscall
        nop

        lw      ra, 28(sp)
        addu    sp, sp, 32
        j       ra
        nop
END(rom_write)

LEAF_NOPROFILE(rom_lseek)
        addu    sp, sp, -32
        sw      ra, 28(sp)

        sw      a0, 16(sp)
        sw      a1, 20(sp)
        sw      a2, 24(sp)

        li      a0, SYS_lseek
        addu    a1, sp, 16
        syscall
        nop

        lw      ra, 28(sp)
        addu    sp, sp, 32
        j       ra
        nop
END(rom_lseek)

LEAF_NOPROFILE(rom_ioctl)
        addu    sp, sp, -32
        sw      ra, 28(sp)

        sw      a0, 16(sp)
        sw      a1, 20(sp)
        sw      a2, 24(sp)

        li      a0, SYS_ioctl
        addu    a1, sp, 16
        syscall
        nop

        lw      ra, 28(sp)
        addu    sp, sp, 32
        j       ra
        nop
END(rom_ioctl)