/*      $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)