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471d4b2d | 1 | /* |
ed9b28fb | 2 | * Copyright(c) 2019-2023 Qualcomm Innovation Center, Inc. All Rights Reserved. |
471d4b2d TS |
3 | * |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, see <http://www.gnu.org/licenses/>. | |
16 | */ | |
17 | ||
18 | #include "qemu/osdep.h" | |
19 | #include "iclass.h" | |
20 | ||
21 | static const SlotMask iclass_info[] = { | |
22 | ||
23 | #define DEF_PP_ICLASS32(TYPE, SLOTS, UNITS) \ | |
24 | [ICLASS_FROM_TYPE(TYPE)] = SLOTS_##SLOTS, | |
25 | #define DEF_EE_ICLASS32(TYPE, SLOTS, UNITS) \ | |
26 | [ICLASS_FROM_TYPE(TYPE)] = SLOTS_##SLOTS, | |
27 | #include "imported/iclass.def" | |
28 | #undef DEF_PP_ICLASS32 | |
29 | #undef DEF_EE_ICLASS32 | |
30 | }; | |
31 | ||
32 | SlotMask find_iclass_slots(Opcode opcode, int itype) | |
33 | { | |
34 | /* There are some exceptions to what the iclass dictates */ | |
35 | if (GET_ATTRIB(opcode, A_ICOP)) { | |
36 | return SLOTS_2; | |
37 | } else if (GET_ATTRIB(opcode, A_RESTRICT_SLOT0ONLY)) { | |
38 | return SLOTS_0; | |
39 | } else if (GET_ATTRIB(opcode, A_RESTRICT_SLOT1ONLY)) { | |
40 | return SLOTS_1; | |
41 | } else if (GET_ATTRIB(opcode, A_RESTRICT_SLOT2ONLY)) { | |
42 | return SLOTS_2; | |
43 | } else if (GET_ATTRIB(opcode, A_RESTRICT_SLOT3ONLY)) { | |
44 | return SLOTS_3; | |
45 | } else if (GET_ATTRIB(opcode, A_COF) && | |
46 | GET_ATTRIB(opcode, A_INDIRECT) && | |
47 | !GET_ATTRIB(opcode, A_MEMLIKE) && | |
48 | !GET_ATTRIB(opcode, A_MEMLIKE_PACKET_RULES)) { | |
49 | return SLOTS_2; | |
50 | } else if (GET_ATTRIB(opcode, A_RESTRICT_NOSLOT1)) { | |
51 | return SLOTS_0; | |
52 | } else if ((opcode == J2_trap0) || | |
53 | (opcode == Y2_isync) || | |
ed9b28fb | 54 | (opcode == J2_pause)) { |
471d4b2d | 55 | return SLOTS_2; |
ed9b28fb MTB |
56 | } else if (opcode == J4_hintjumpr) { |
57 | return SLOTS_23; | |
471d4b2d TS |
58 | } else if (GET_ATTRIB(opcode, A_CRSLOT23)) { |
59 | return SLOTS_23; | |
60 | } else if (GET_ATTRIB(opcode, A_RESTRICT_PREFERSLOT0)) { | |
61 | return SLOTS_0; | |
62 | } else if (GET_ATTRIB(opcode, A_SUBINSN)) { | |
63 | return SLOTS_01; | |
64 | } else if (GET_ATTRIB(opcode, A_CALL)) { | |
65 | return SLOTS_23; | |
66 | } else if ((opcode == J4_jumpseti) || (opcode == J4_jumpsetr)) { | |
67 | return SLOTS_23; | |
68 | } else { | |
69 | return iclass_info[itype]; | |
70 | } | |
71 | } |