xref: /qemu/target/mips/tcg/vr54xx_translate.c (revision a5e2932068f1b09fa3be3b79a88f935b6e9620c3)
1 /*
2  * VR5432 extensions translation routines
3  *
4  * Reference: VR5432 Microprocessor User’s Manual
5  *            (Document Number U13751EU5V0UM00)
6  *
7  *  Copyright (c) 2021 Philippe Mathieu-Daudé
8  *
9  * SPDX-License-Identifier: GPL-2.0-or-later
10  */
11 
12 #include "qemu/osdep.h"
13 #include "tcg/tcg-op.h"
14 #include "exec/helper-gen.h"
15 #include "translate.h"
16 #include "internal.h"
17 
18 /* Include the auto-generated decoder. */
19 #include "decode-vr54xx.c.inc"
20 
21 /*
22  * Integer Multiply-Accumulate Instructions
23  *
24  * MACC         Multiply, accumulate, and move LO
25  * MACCHI       Multiply, accumulate, and move HI
26  * MACCHIU      Unsigned multiply, accumulate, and move HI
27  * MACCU        Unsigned multiply, accumulate, and move LO
28  * MULHI        Multiply and move HI
29  * MULHIU       Unsigned multiply and move HI
30  * MULS         Multiply, negate, and move LO
31  * MULSHI       Multiply, negate, and move HI
32  * MULSHIU      Unsigned multiply, negate, and move HI
33  * MULSU        Unsigned multiply, negate, and move LO
34  */
35 
36 static bool trans_mult_acc(DisasContext *ctx, arg_r *a,
37                            void (*gen_helper_mult_acc)(TCGv, TCGv_ptr, TCGv, TCGv))
38 {
39     TCGv t0 = tcg_temp_new();
40     TCGv t1 = tcg_temp_new();
41 
42     gen_load_gpr(t0, a->rs);
43     gen_load_gpr(t1, a->rt);
44 
45     gen_helper_mult_acc(t0, cpu_env, t0, t1);
46 
47     gen_store_gpr(t0, a->rd);
48 
49     tcg_temp_free(t0);
50     tcg_temp_free(t1);
51 
52     return false;
53 }
54 
55 TRANS(MACC,     trans_mult_acc, gen_helper_macc);
56 TRANS(MACCHI,   trans_mult_acc, gen_helper_macchi);
57 TRANS(MACCHIU,  trans_mult_acc, gen_helper_macchiu);
58 TRANS(MACCU,    trans_mult_acc, gen_helper_maccu);
59 TRANS(MULHI,    trans_mult_acc, gen_helper_mulhi);
60 TRANS(MULHIU,   trans_mult_acc, gen_helper_mulhiu);
61 TRANS(MULS,     trans_mult_acc, gen_helper_muls);
62 TRANS(MULSHI,   trans_mult_acc, gen_helper_mulshi);
63 TRANS(MULSHIU,  trans_mult_acc, gen_helper_mulshiu);
64 TRANS(MULSU,    trans_mult_acc, gen_helper_mulsu);
65