/*
* Copyright (c) 2020 AIIT XUOS Lab
* XiUOS is licensed under Mulan PSL v2.
* You can use this software according to the terms and conditions of the Mulan PSL v2.
* You may obtain a copy of Mulan PSL v2 at:
*        http://license.coscl.org.cn/MulanPSL2
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PSL v2 for more details.
*/
#include "register_para.h"

.macro ZERO_X_REGISTERS
  xor zero, zero, zero
  xor ra, ra, ra
  xor sp, sp, sp
  xor gp, gp, gp
  xor tp, tp, tp
  xor t0, t0, t0
  xor t1, t1, t1
  xor t2, t2, t2
  xor s0, s0, s0
  xor s1, s1, s1
  xor a0, a0, a0
  xor a1, a1, a1
  xor a2, a2, a2
  xor a3, a3, a3
  xor a4, a4, a4
  xor a5, a5, a5
  xor a6, a6, a6
  xor a7, a7, a7
  xor s2, s2, s2
  xor s3, s3, s3
  xor s4, s4, s4
  xor s5, s5, s5
  xor s6, s6, s6
  xor s7, s7, s7
  xor s8, s8, s8
  xor s9, s9, s9
  xor s10, s10, s10
  xor s11, s11, s11
  xor t3, t3, t3
  xor t4, t4, t4
  xor t5, t5, t5
  xor t6, t6, t6
.endm

.macro ZERO_F_REGISTERS
  FSubDS f0, f0, f0
  FSubDS f1, f1, f1
  FSubDS f2, f2, f2
  FSubDS f3, f3, f3
  FSubDS f4, f4, f4
  FSubDS f5, f5, f5
  FSubDS f6, f6, f6
  FSubDS f7, f7, f7
  FSubDS f8, f8, f8
  FSubDS f9, f9, f9
  FSubDS f10,f10,f10
  FSubDS f11,f11,f11
  FSubDS f12,f12,f12
  FSubDS f13,f13,f13
  FSubDS f14,f14,f14
  FSubDS f15,f15,f15
  FSubDS f16,f16,f16
  FSubDS f17,f17,f17
  FSubDS f18,f18,f18
  FSubDS f19,f19,f19
  FSubDS f20,f20,f20
  FSubDS f21,f21,f21
  FSubDS f22,f22,f22
  FSubDS f23,f23,f23
  FSubDS f24,f24,f24
  FSubDS f25,f25,f25
  FSubDS f26,f26,f26
  FSubDS f27,f27,f27
  FSubDS f28,f28,f28
  FSubDS f29,f29,f29
  FSubDS f30,f30,f30
  FSubDS f31,f31,f31
.endm

 .macro SAVE_X_REGISTERS

    addi   sp, sp, -32 * RegLength

    StoreD ra,   1 * RegLength(sp)

    csrr   ra, mstatus
    StoreD ra,   2 * RegLength(sp)

    csrr   ra, mepc
    StoreD ra, 0 * RegLength(sp)

    StoreD tp,   4 * RegLength(sp)
    StoreD t0,   5 * RegLength(sp)
    StoreD t1,   6 * RegLength(sp)
    StoreD t2,   7 * RegLength(sp)
    StoreD s0,   8 * RegLength(sp)
    StoreD s1,   9 * RegLength(sp)
    StoreD a0,  10 * RegLength(sp)
    StoreD a1,  11 * RegLength(sp)
    StoreD a2,  12 * RegLength(sp)
    StoreD a3,  13 * RegLength(sp)
    StoreD a4,  14 * RegLength(sp)
    StoreD a5,  15 * RegLength(sp)
    StoreD a6,  16 * RegLength(sp)
    StoreD a7,  17 * RegLength(sp)
    StoreD s2,  18 * RegLength(sp)
    StoreD s3,  19 * RegLength(sp)
    StoreD s4,  20 * RegLength(sp)
    StoreD s5,  21 * RegLength(sp)
    StoreD s6,  22 * RegLength(sp)
    StoreD s7,  23 * RegLength(sp)
    StoreD s8,  24 * RegLength(sp)
    StoreD s9,  25 * RegLength(sp)
    StoreD s10, 26 * RegLength(sp)
    StoreD s11, 27 * RegLength(sp)
    StoreD t3,  28 * RegLength(sp)
    StoreD t4,  29 * RegLength(sp)
    StoreD t5,  30 * RegLength(sp)
    StoreD t6,  31 * RegLength(sp)
.endm