1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Copyright (c) 2021 Loongson Technology Corporation Limited
4 */
5
6static void gen_sll_w(TCGv dest, TCGv src1, TCGv src2)
7{
8    TCGv t0 = tcg_temp_new();
9    tcg_gen_andi_tl(t0, src2, 0x1f);
10    tcg_gen_shl_tl(dest, src1, t0);
11    tcg_temp_free(t0);
12}
13
14static void gen_srl_w(TCGv dest, TCGv src1, TCGv src2)
15{
16    TCGv t0 = tcg_temp_new();
17    tcg_gen_andi_tl(t0, src2, 0x1f);
18    tcg_gen_shr_tl(dest, src1, t0);
19    tcg_temp_free(t0);
20}
21
22static void gen_sra_w(TCGv dest, TCGv src1, TCGv src2)
23{
24    TCGv t0 = tcg_temp_new();
25    tcg_gen_andi_tl(t0, src2, 0x1f);
26    tcg_gen_sar_tl(dest, src1, t0);
27    tcg_temp_free(t0);
28}
29
30static void gen_sll_d(TCGv dest, TCGv src1, TCGv src2)
31{
32    TCGv t0 = tcg_temp_new();
33    tcg_gen_andi_tl(t0, src2, 0x3f);
34    tcg_gen_shl_tl(dest, src1, t0);
35    tcg_temp_free(t0);
36}
37
38static void gen_srl_d(TCGv dest, TCGv src1, TCGv src2)
39{
40    TCGv t0 = tcg_temp_new();
41    tcg_gen_andi_tl(t0, src2, 0x3f);
42    tcg_gen_shr_tl(dest, src1, t0);
43    tcg_temp_free(t0);
44}
45
46static void gen_sra_d(TCGv dest, TCGv src1, TCGv src2)
47{
48    TCGv t0 = tcg_temp_new();
49    tcg_gen_andi_tl(t0, src2, 0x3f);
50    tcg_gen_sar_tl(dest, src1, t0);
51    tcg_temp_free(t0);
52}
53
54static void gen_rotr_w(TCGv dest, TCGv src1, TCGv src2)
55{
56    TCGv_i32 t1 = tcg_temp_new_i32();
57    TCGv_i32 t2 = tcg_temp_new_i32();
58    TCGv t0 = tcg_temp_new();
59
60    tcg_gen_andi_tl(t0, src2, 0x1f);
61
62    tcg_gen_trunc_tl_i32(t1, src1);
63    tcg_gen_trunc_tl_i32(t2, t0);
64
65    tcg_gen_rotr_i32(t1, t1, t2);
66    tcg_gen_ext_i32_tl(dest, t1);
67
68    tcg_temp_free_i32(t1);
69    tcg_temp_free_i32(t2);
70    tcg_temp_free(t0);
71}
72
73static void gen_rotr_d(TCGv dest, TCGv src1, TCGv src2)
74{
75    TCGv t0 = tcg_temp_new();
76    tcg_gen_andi_tl(t0, src2, 0x3f);
77    tcg_gen_rotr_tl(dest, src1, t0);
78    tcg_temp_free(t0);
79}
80
81static bool trans_srai_w(DisasContext *ctx, arg_srai_w *a)
82{
83    TCGv dest = gpr_dst(ctx, a->rd, EXT_NONE);
84    TCGv src1 = gpr_src(ctx, a->rj, EXT_ZERO);
85
86    tcg_gen_sextract_tl(dest, src1, a->imm, 32 - a->imm);
87    gen_set_gpr(a->rd, dest, EXT_NONE);
88
89    return true;
90}
91
92TRANS(sll_w, gen_rrr, EXT_ZERO, EXT_NONE, EXT_SIGN, gen_sll_w)
93TRANS(srl_w, gen_rrr, EXT_ZERO, EXT_NONE, EXT_SIGN, gen_srl_w)
94TRANS(sra_w, gen_rrr, EXT_SIGN, EXT_NONE, EXT_SIGN, gen_sra_w)
95TRANS(sll_d, gen_rrr, EXT_NONE, EXT_NONE, EXT_NONE, gen_sll_d)
96TRANS(srl_d, gen_rrr, EXT_NONE, EXT_NONE, EXT_NONE, gen_srl_d)
97TRANS(sra_d, gen_rrr, EXT_NONE, EXT_NONE, EXT_NONE, gen_sra_d)
98TRANS(rotr_w, gen_rrr, EXT_ZERO, EXT_NONE, EXT_SIGN, gen_rotr_w)
99TRANS(rotr_d, gen_rrr, EXT_NONE, EXT_NONE, EXT_NONE, gen_rotr_d)
100TRANS(slli_w, gen_rri_c, EXT_NONE, EXT_SIGN, tcg_gen_shli_tl)
101TRANS(slli_d, gen_rri_c, EXT_NONE, EXT_NONE, tcg_gen_shli_tl)
102TRANS(srli_w, gen_rri_c, EXT_ZERO, EXT_SIGN, tcg_gen_shri_tl)
103TRANS(srli_d, gen_rri_c, EXT_NONE, EXT_NONE, tcg_gen_shri_tl)
104TRANS(srai_d, gen_rri_c, EXT_NONE, EXT_NONE, tcg_gen_sari_tl)
105TRANS(rotri_w, gen_rri_v, EXT_NONE, EXT_NONE, gen_rotr_w)
106TRANS(rotri_d, gen_rri_c, EXT_NONE, EXT_NONE, tcg_gen_rotri_tl)
107