/* $NetBSD: instr.h,v 1.4 2005/12/11 12:18:43 christos Exp $ */ /*- * 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 */