xref: /qemu/target/loongarch/translate.h (revision 29b62a10)
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * LoongArch translation routines.
4  *
5  * Copyright (c) 2021 Loongson Technology Corporation Limited
6  */
7 
8 #ifndef TARGET_LOONGARCH_TRANSLATE_H
9 #define TARGET_LOONGARCH_TRANSLATE_H
10 
11 #include "exec/translator.h"
12 
13 #define TRANS(NAME, FUNC, ...) \
14     static bool trans_##NAME(DisasContext *ctx, arg_##NAME * a) \
15     { return FUNC(ctx, a, __VA_ARGS__); }
16 
17 /*
18  * If an operation is being performed on less than TARGET_LONG_BITS,
19  * it may require the inputs to be sign- or zero-extended; which will
20  * depend on the exact operation being performed.
21  */
22 typedef enum {
23     EXT_NONE,
24     EXT_SIGN,
25     EXT_ZERO,
26 } DisasExtend;
27 
28 typedef struct DisasContext {
29     DisasContextBase base;
30     target_ulong page_start;
31     uint32_t opcode;
32     uint16_t mem_idx;
33     uint16_t plv;
34     TCGv zero;
35     /* Space for 3 operands plus 1 extra for address computation. */
36     TCGv temp[4];
37     uint8_t ntemp;
38 } DisasContext;
39 
40 void generate_exception(DisasContext *ctx, int excp);
41 
42 extern TCGv cpu_gpr[32], cpu_pc;
43 extern TCGv_i32 cpu_fscr0;
44 extern TCGv_i64 cpu_fpr[32];
45 
46 #endif
47