1/*
2 * Tiny Code Generator for QEMU
3 *
4 * Copyright (c) 2008 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24#include "qemu/osdep.h"
25#include "qemu/host-utils.h"
26#include "cpu.h"
27#include "exec/helper-proto.h"
28#include "exec/cpu_ldst.h"
29#include "exec/exec-all.h"
30#include "exec/tb-lookup.h"
31#include "disas/disas.h"
32#include "exec/log.h"
33
34/* 32-bit helpers */
35
36int32_t HELPER(div_i32)(int32_t arg1, int32_t arg2)
37{
38 return arg1 / arg2;
39}
40
41int32_t HELPER(rem_i32)(int32_t arg1, int32_t arg2)
42{
43 return arg1 % arg2;
44}
45
46uint32_t HELPER(divu_i32)(uint32_t arg1, uint32_t arg2)
47{
48 return arg1 / arg2;
49}
50
51uint32_t HELPER(remu_i32)(uint32_t arg1, uint32_t arg2)
52{
53 return arg1 % arg2;
54}
55
56/* 64-bit helpers */
57
58uint64_t HELPER(shl_i64)(uint64_t arg1, uint64_t arg2)
59{
60 return arg1 << arg2;
61}
62
63uint64_t HELPER(shr_i64)(uint64_t arg1, uint64_t arg2)
64{
65 return arg1 >> arg2;
66}
67
68int64_t HELPER(sar_i64)(int64_t arg1, int64_t arg2)
69{
70 return arg1 >> arg2;
71}
72
73int64_t HELPER(div_i64)(int64_t arg1, int64_t arg2)
74{
75 return arg1 / arg2;
76}
77
78int64_t HELPER(rem_i64)(int64_t arg1, int64_t arg2)
79{
80 return arg1 % arg2;
81}
82
83uint64_t HELPER(divu_i64)(uint64_t arg1, uint64_t arg2)
84{
85 return arg1 / arg2;
86}
87
88uint64_t HELPER(remu_i64)(uint64_t arg1, uint64_t arg2)
89{
90 return arg1 % arg2;
91}
92
93uint64_t HELPER(muluh_i64)(uint64_t arg1, uint64_t arg2)
94{
95 uint64_t l, h;
96 mulu64(&l, &h, arg1, arg2);
97 return h;
98}
99
100int64_t HELPER(mulsh_i64)(int64_t arg1, int64_t arg2)
101{
102 uint64_t l, h;
103 muls64(&l, &h, arg1, arg2);
104 return h;
105}
106
107uint32_t HELPER(clz_i32)(uint32_t arg, uint32_t zero_val)
108{
109 return arg ? clz32(arg) : zero_val;
110}
111
112uint32_t HELPER(ctz_i32)(uint32_t arg, uint32_t zero_val)
113{
114 return arg ? ctz32(arg) : zero_val;
115}
116
117uint64_t HELPER(clz_i64)(uint64_t arg, uint64_t zero_val)
118{
119 return arg ? clz64(arg) : zero_val;
120}
121
122uint64_t HELPER(ctz_i64)(uint64_t arg, uint64_t zero_val)
123{
124 return arg ? ctz64(arg) : zero_val;
125}
126
127uint32_t HELPER(clrsb_i32)(uint32_t arg)
128{
129 return clrsb32(arg);
130}
131
132uint64_t HELPER(clrsb_i64)(uint64_t arg)
133{
134 return clrsb64(arg);
135}
136
137uint32_t HELPER(ctpop_i32)(uint32_t arg)
138{
139 return ctpop32(arg);
140}
141
142uint64_t HELPER(ctpop_i64)(uint64_t arg)
143{
144 return ctpop64(arg);
145}
146
147void *HELPER(lookup_tb_ptr)(CPUArchState *env)
148{
149 CPUState *cpu = env_cpu(env);
150 TranslationBlock *tb;
151 target_ulong cs_base, pc;
152 uint32_t flags;
153
154 tb = tb_lookup__cpu_state(cpu, &pc, &cs_base, &flags, curr_cflags());
155 if (tb == NULL) {
156 return tcg_ctx->code_gen_epilogue;
157 }
158 qemu_log_mask_and_addr(CPU_LOG_EXEC, pc,
159 "Chain %d: %p ["
160 TARGET_FMT_lx "/" TARGET_FMT_lx "/%#x] %s\n",
161 cpu->cpu_index, tb->tc.ptr, cs_base, pc, flags,
162 lookup_symbol(pc));
163 return tb->tc.ptr;
164}
165
166void HELPER(exit_atomic)(CPUArchState *env)
167{
168 cpu_loop_exit_atomic(env_cpu(env), GETPC());
169}
170