387 lines
7.5 KiB
C
387 lines
7.5 KiB
C
/* $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 */
|