| 1 | /* |
| 2 | * MIPS emulation for QEMU - Release 6 translation routines |
| 3 | * |
| 4 | * Copyright (c) 2020 Philippe Mathieu-Daudé |
| 5 | * |
| 6 | * SPDX-License-Identifier: LGPL-2.1-or-later |
| 7 | * |
| 8 | * This code is licensed under the LGPL v2.1 or later. |
| 9 | */ |
| 10 | |
| 11 | #include "qemu/osdep.h" |
| 12 | #include "translate.h" |
| 13 | |
| 14 | /* Include the auto-generated decoders. */ |
| 15 | #include "decode-rel6.c.inc" |
| 16 | |
| 17 | bool trans_REMOVED(DisasContext *ctx, arg_REMOVED *a) |
| 18 | { |
| 19 | gen_reserved_instruction(ctx); |
| 20 | |
| 21 | return true; |
| 22 | } |
| 23 | |
| 24 | static bool trans_LSA(DisasContext *ctx, arg_r *a) |
| 25 | { |
| 26 | return gen_lsa(ctx, a->rd, a->rt, a->rs, a->sa + 1); |
| 27 | } |
| 28 | |
| 29 | static bool trans_DLSA(DisasContext *ctx, arg_r *a) |
| 30 | { |
| 31 | if (TARGET_LONG_BITS != 64) { |
| 32 | return false; |
| 33 | } |
| 34 | return gen_dlsa(ctx, a->rd, a->rt, a->rs, a->sa + 1); |
| 35 | } |
| 36 | |
| 37 | static bool trans_CRC32(DisasContext *ctx, arg_special3_crc *a) |
| 38 | { |
| 39 | if (unlikely(!ctx->crcp) |
| 40 | || unlikely((a->sz == 3) && (!(ctx->hflags & MIPS_HFLAG_64))) |
| 41 | || unlikely((a->c >= 2))) { |
| 42 | gen_reserved_instruction(ctx); |
| 43 | return true; |
| 44 | } |
| 45 | gen_crc32(ctx, a->rt, a->rs, a->rt, a->sz, a->c); |
| 46 | return true; |
| 47 | } |