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- /* $NetBSD: instr.h,v 1.4 2005/12/11 12:18:43 christos Exp $ */
- /* $FreeBSD$ */
- /*-
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright (c) 1992, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This software was developed by the Computer Systems Engineering group
- * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
- * contributed to Berkeley.
- *
- * All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Lawrence Berkeley Laboratory.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)instr.h 8.1 (Berkeley) 6/11/93
- */
- /*
- * An instruction.
- */
- union instr {
- int i_int; /* as a whole */
- /*
- * Any instruction type.
- */
- struct {
- u_int i_opcd:6; /* first-level decode */
- u_int :25;
- u_int i_rc:1;
- } i_any;
- /*
- * Format A
- */
- struct {
- u_int i_opcd:6;
- u_int i_frt:5;
- u_int i_fra:5;
- u_int i_frb:5;
- u_int i_frc:5;
- u_int i_xo:5;
- u_int i_rc:1;
- } i_a;
- /*
- * Format B
- */
- struct {
- u_int i_opcd:6;
- int i_bo:5;
- int i_bi:5;
- int i_bd:14;
- int i_aa:1;
- int i_lk:1;
- } i_b;
- /*
- * Format D
- */
- struct {
- u_int i_opcd:6;
- u_int i_rs:5;
- u_int i_ra:5;
- int i_d:16;
- } i_d;
- /*
- * Format DE
- */
- struct {
- u_int i_opcd:6;
- u_int i_rs:5;
- u_int i_ra:5;
- int i_d:12;
- u_int i_xo:4;
- } i_de;
- /*
- * Format I
- */
- struct {
- u_int i_opcd:6;
- int i_li:24;
- int i_aa:1;
- int i_lk:1;
- } i_i;
- /*
- * Format M
- */
- struct {
- u_int i_opcd:6;
- u_int i_rs:5;
- u_int i_ra:5;
- u_int i_rb:5;
- int i_mb:5;
- int i_me:5;
- u_int i_rc:1;
- } i_m;
- /*
- * Format MD
- */
- struct {
- u_int i_opcd:6;
- u_int i_rs:5;
- u_int i_ra:5;
- u_int i_rb:5;
- int i_sh1_5:5;
- int i_mb:6;
- u_int i_xo:3;
- int i_sh0:2;
- u_int i_rc:1;
- } i_md;
- /*
- * Format MDS
- */
- struct {
- u_int i_opcd:6;
- u_int i_rs:5;
- u_int i_ra:5;
- u_int i_rb:5;
- int i_sh:5;
- int i_mb:6;
- u_int i_xo:4;
- u_int i_rc:1;
- } i_mds;
- /*
- * Format S
- */
- struct {
- u_int i_opcd:6;
- int :24;
- int i_i:1;
- int :1;
- } i_s;
- /*
- * Format X
- */
- struct {
- u_int i_opcd:6;
- u_int i_rs:5;
- u_int i_ra:5;
- u_int i_rb:5;
- u_int i_xo:10;
- u_int i_rc:1;
- } i_x;
- /*
- * Format XFL
- */
- struct {
- u_int i_opcd:6;
- int :1;
- int i_flm:8;
- int :1;
- int i_frb:5;
- u_int i_xo:10;
- int :1;
- } i_xfl;
- /*
- * Format XFX
- */
- struct {
- u_int i_opcd:6;
- int i_dcrn:10;
- u_int i_xo:10;
- int :1;
- } i_xfx;
- /*
- * Format XL
- */
- struct {
- u_int i_opcd:6;
- int i_bt:5;
- int i_ba:5;
- int i_bb:5;
- u_int i_xo:10;
- int i_lk:1;
- } i_xl;
- /*
- * Format XS
- */
- struct {
- u_int i_opcd:6;
- u_int i_rs:5;
- u_int i_ra:5;
- int i_sh0_4:5;
- u_int i_xo:9;
- int i_sh5:1;
- u_int i_rc:1;
- } i_xs;
- };
- #define i_rt i_rs
- /*
- * Primary opcode numbers:
- */
- #define OPC_TDI 0x02
- #define OPC_TWI 0x03
- #define OPC_MULLI 0x07
- #define OPC_SUBFIC 0x08
- #define OPC_BCE 0x09
- #define OPC_CMPLI 0x0a
- #define OPC_CMPI 0x0b
- #define OPC_ADDIC 0x0c
- #define OPC_ADDIC_DOT 0x0d
- #define OPC_ADDI 0x0e
- #define OPC_ADDIS 0x0f
- #define OPC_BC 0x10
- #define OPC_SC 0x11
- #define OPC_B 0x12
- #define OPC_branch_19 0x13
- #define OPC_RLWIMI 0x14
- #define OPC_RLWINM 0x15
- #define OPC_BE 0x16
- #define OPC_RLWNM 0x17
- #define OPC_ORI 0x18
- #define OPC_ORIS 0x19
- #define OPC_XORI 0x1a
- #define OPC_XORIS 0x1b
- #define OPC_ANDI 0x1c
- #define OPC_ANDIS 0x1d
- #define OPC_dwe_rot_30 0x1e
- #define OPC_integer_31 0x1f
- #define OPC_LWZ 0x20
- #define OPC_LWZU 0x21
- #define OPC_LBZ 0x22
- #define OPC_LBZU 0x23
- #define OPC_STW 0x24
- #define OPC_STWU 0x25
- #define OPC_STB 0x26
- #define OPC_STBU 0x27
- #define OPC_LHZ 0x28
- #define OPC_LHZU 0x29
- #define OPC_LHA 0x2a
- #define OPC_LHAU 0x2b
- #define OPC_STH 0x2c
- #define OPC_STHU 0x2d
- #define OPC_LMW 0x2e
- #define OPC_STMW 0x2f
- #define OPC_LFS 0x30
- #define OPC_LFSU 0x31
- #define OPC_LFD 0x32
- #define OPC_LFDU 0x33
- #define OPC_STFS 0x34
- #define OPC_STFSU 0x35
- #define OPC_STFD 0x36
- #define OPC_STFDU 0x37
- #define OPC_load_st_58 0x3a
- #define OPC_sp_fp_59 0x3b
- #define OPC_load_st_62 0x3e
- #define OPC_dp_fp_63 0x3f
- /*
- * Opcode 31 sub-types (FP only)
- */
- #define OPC31_TW 0x004
- #define OPC31_LFSX 0x217
- #define OPC31_LFSUX 0x237
- #define OPC31_LFDX 0x257
- #define OPC31_LFDUX 0x277
- #define OPC31_STFSX 0x297
- #define OPC31_STFSUX 0x2b7
- #define OPC31_STFDX 0x2d7
- #define OPC31_STFDUX 0x2f7
- #define OPC31_STFIWX 0x3d7
- /* Mask for all valid indexed FP load/store ops (except stfiwx) */
- #define OPC31_FPMASK 0x31f
- #define OPC31_FPOP 0x217
- /*
- * Opcode 59 sub-types:
- */
- #define OPC59_FDIVS 0x12
- #define OPC59_FSUBS 0x14
- #define OPC59_FADDS 0x15
- #define OPC59_FSQRTS 0x16
- #define OPC59_FRES 0x18
- #define OPC59_FMULS 0x19
- #define OPC59_FMSUBS 0x1c
- #define OPC59_FMADDS 0x1d
- #define OPC59_FNMSUBS 0x1e
- #define OPC59_FNMADDS 0x1f
- /*
- * Opcode 62 sub-types:
- */
- #define OPC62_LDE 0x0
- #define OPC62_LDEU 0x1
- #define OPC62_LFSE 0x4
- #define OPC62_LFSEU 0x5
- #define OPC62_LFDE 0x6
- #define OPC62_LFDEU 0x7
- #define OPC62_STDE 0x8
- #define OPC62_STDEU 0x9
- #define OPC62_STFSE 0xc
- #define OPC62_STFSEU 0xd
- #define OPC62_STFDE 0xe
- #define OPC62_STFDEU 0xf
- /*
- * Opcode 63 sub-types:
- *
- * (The first group are masks....)
- */
- #define OPC63M_MASK 0x10
- #define OPC63M_FDIV 0x12
- #define OPC63M_FSUB 0x14
- #define OPC63M_FADD 0x15
- #define OPC63M_FSQRT 0x16
- #define OPC63M_FSEL 0x17
- #define OPC63M_FMUL 0x19
- #define OPC63M_FRSQRTE 0x1a
- #define OPC63M_FMSUB 0x1c
- #define OPC63M_FMADD 0x1d
- #define OPC63M_FNMSUB 0x1e
- #define OPC63M_FNMADD 0x1f
- #define OPC63_FCMPU 0x00
- #define OPC63_FRSP 0x0c
- #define OPC63_FCTIW 0x0e
- #define OPC63_FCTIWZ 0x0f
- #define OPC63_FCMPO 0x20
- #define OPC63_MTFSB1 0x26
- #define OPC63_FNEG 0x28
- #define OPC63_MCRFS 0x40
- #define OPC63_MTFSB0 0x46
- #define OPC63_FMR 0x48
- #define OPC63_MTFSFI 0x86
- #define OPC63_FNABS 0x88
- #define OPC63_FABS 0x108
- #define OPC63_MFFS 0x247
- #define OPC63_MTFSF 0x2c7
- #define OPC63_FCTID 0x32e
- #define OPC63_FCTIDZ 0x32f
- #define OPC63_FCFID 0x34e
- /*
- * FPU data types.
- */
- #define FTYPE_LNG -1 /* data = 64-bit signed long integer */
- #define FTYPE_INT 0 /* data = 32-bit signed integer */
- #define FTYPE_SNG 1 /* data = 32-bit float */
- #define FTYPE_DBL 2 /* data = 64-bit double */
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