git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3177 c046a42c-6fe2-441c-8c8c-71466251a162
3728 lines
112 KiB
C
3728 lines
112 KiB
C
/*
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* ARM translation
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*
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* Copyright (c) 2003 Fabrice Bellard
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* Copyright (c) 2005 CodeSourcery, LLC
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* Copyright (c) 2007 OpenedHand, Ltd.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <stdarg.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <inttypes.h>
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#include "cpu.h"
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#include "exec-all.h"
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#include "disas.h"
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#define ENABLE_ARCH_5J 0
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#define ENABLE_ARCH_6 1
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#define ENABLE_ARCH_6T2 1
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#define ARCH(x) if (!ENABLE_ARCH_##x) goto illegal_op;
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/* internal defines */
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typedef struct DisasContext {
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target_ulong pc;
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int is_jmp;
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/* Nonzero if this instruction has been conditionally skipped. */
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int condjmp;
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/* The label that will be jumped to when the instruction is skipped. */
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int condlabel;
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struct TranslationBlock *tb;
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int singlestep_enabled;
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int thumb;
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int is_mem;
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#if !defined(CONFIG_USER_ONLY)
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int user;
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#endif
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} DisasContext;
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#if defined(CONFIG_USER_ONLY)
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#define IS_USER(s) 1
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#else
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#define IS_USER(s) (s->user)
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#endif
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#define DISAS_JUMP_NEXT 4
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#ifdef USE_DIRECT_JUMP
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#define TBPARAM(x)
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#else
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#define TBPARAM(x) (long)(x)
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#endif
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/* XXX: move that elsewhere */
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static uint16_t *gen_opc_ptr;
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static uint32_t *gen_opparam_ptr;
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extern FILE *logfile;
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extern int loglevel;
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enum {
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#define DEF(s, n, copy_size) INDEX_op_ ## s,
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#include "opc.h"
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#undef DEF
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NB_OPS,
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};
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#include "gen-op.h"
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static GenOpFunc1 *gen_test_cc[14] = {
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gen_op_test_eq,
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gen_op_test_ne,
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gen_op_test_cs,
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gen_op_test_cc,
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gen_op_test_mi,
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gen_op_test_pl,
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gen_op_test_vs,
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gen_op_test_vc,
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gen_op_test_hi,
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gen_op_test_ls,
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gen_op_test_ge,
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gen_op_test_lt,
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gen_op_test_gt,
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gen_op_test_le,
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};
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const uint8_t table_logic_cc[16] = {
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1, /* and */
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1, /* xor */
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0, /* sub */
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0, /* rsb */
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0, /* add */
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0, /* adc */
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0, /* sbc */
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0, /* rsc */
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1, /* andl */
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1, /* xorl */
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0, /* cmp */
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0, /* cmn */
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1, /* orr */
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1, /* mov */
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1, /* bic */
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1, /* mvn */
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};
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static GenOpFunc1 *gen_shift_T1_im[4] = {
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gen_op_shll_T1_im,
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gen_op_shrl_T1_im,
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gen_op_sarl_T1_im,
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gen_op_rorl_T1_im,
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};
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static GenOpFunc *gen_shift_T1_0[4] = {
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NULL,
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gen_op_shrl_T1_0,
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gen_op_sarl_T1_0,
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gen_op_rrxl_T1,
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};
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static GenOpFunc1 *gen_shift_T2_im[4] = {
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gen_op_shll_T2_im,
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gen_op_shrl_T2_im,
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gen_op_sarl_T2_im,
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gen_op_rorl_T2_im,
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};
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static GenOpFunc *gen_shift_T2_0[4] = {
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NULL,
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gen_op_shrl_T2_0,
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gen_op_sarl_T2_0,
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gen_op_rrxl_T2,
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};
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static GenOpFunc1 *gen_shift_T1_im_cc[4] = {
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gen_op_shll_T1_im_cc,
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gen_op_shrl_T1_im_cc,
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gen_op_sarl_T1_im_cc,
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gen_op_rorl_T1_im_cc,
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};
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static GenOpFunc *gen_shift_T1_0_cc[4] = {
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NULL,
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gen_op_shrl_T1_0_cc,
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gen_op_sarl_T1_0_cc,
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gen_op_rrxl_T1_cc,
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};
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static GenOpFunc *gen_shift_T1_T0[4] = {
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gen_op_shll_T1_T0,
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gen_op_shrl_T1_T0,
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gen_op_sarl_T1_T0,
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gen_op_rorl_T1_T0,
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};
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static GenOpFunc *gen_shift_T1_T0_cc[4] = {
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gen_op_shll_T1_T0_cc,
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gen_op_shrl_T1_T0_cc,
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gen_op_sarl_T1_T0_cc,
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gen_op_rorl_T1_T0_cc,
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};
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static GenOpFunc *gen_op_movl_TN_reg[3][16] = {
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{
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gen_op_movl_T0_r0,
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gen_op_movl_T0_r1,
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gen_op_movl_T0_r2,
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gen_op_movl_T0_r3,
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gen_op_movl_T0_r4,
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gen_op_movl_T0_r5,
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gen_op_movl_T0_r6,
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gen_op_movl_T0_r7,
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gen_op_movl_T0_r8,
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gen_op_movl_T0_r9,
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gen_op_movl_T0_r10,
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gen_op_movl_T0_r11,
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gen_op_movl_T0_r12,
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gen_op_movl_T0_r13,
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gen_op_movl_T0_r14,
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gen_op_movl_T0_r15,
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},
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{
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gen_op_movl_T1_r0,
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gen_op_movl_T1_r1,
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gen_op_movl_T1_r2,
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gen_op_movl_T1_r3,
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gen_op_movl_T1_r4,
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gen_op_movl_T1_r5,
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gen_op_movl_T1_r6,
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gen_op_movl_T1_r7,
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gen_op_movl_T1_r8,
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gen_op_movl_T1_r9,
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gen_op_movl_T1_r10,
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gen_op_movl_T1_r11,
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gen_op_movl_T1_r12,
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gen_op_movl_T1_r13,
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gen_op_movl_T1_r14,
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gen_op_movl_T1_r15,
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},
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{
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gen_op_movl_T2_r0,
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gen_op_movl_T2_r1,
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gen_op_movl_T2_r2,
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gen_op_movl_T2_r3,
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gen_op_movl_T2_r4,
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gen_op_movl_T2_r5,
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gen_op_movl_T2_r6,
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gen_op_movl_T2_r7,
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gen_op_movl_T2_r8,
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gen_op_movl_T2_r9,
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gen_op_movl_T2_r10,
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gen_op_movl_T2_r11,
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gen_op_movl_T2_r12,
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gen_op_movl_T2_r13,
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gen_op_movl_T2_r14,
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gen_op_movl_T2_r15,
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},
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};
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static GenOpFunc *gen_op_movl_reg_TN[2][16] = {
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{
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gen_op_movl_r0_T0,
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gen_op_movl_r1_T0,
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gen_op_movl_r2_T0,
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gen_op_movl_r3_T0,
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gen_op_movl_r4_T0,
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gen_op_movl_r5_T0,
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gen_op_movl_r6_T0,
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gen_op_movl_r7_T0,
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gen_op_movl_r8_T0,
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gen_op_movl_r9_T0,
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gen_op_movl_r10_T0,
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gen_op_movl_r11_T0,
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gen_op_movl_r12_T0,
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gen_op_movl_r13_T0,
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gen_op_movl_r14_T0,
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gen_op_movl_r15_T0,
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},
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{
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gen_op_movl_r0_T1,
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gen_op_movl_r1_T1,
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gen_op_movl_r2_T1,
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gen_op_movl_r3_T1,
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gen_op_movl_r4_T1,
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gen_op_movl_r5_T1,
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gen_op_movl_r6_T1,
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gen_op_movl_r7_T1,
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gen_op_movl_r8_T1,
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gen_op_movl_r9_T1,
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gen_op_movl_r10_T1,
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gen_op_movl_r11_T1,
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gen_op_movl_r12_T1,
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gen_op_movl_r13_T1,
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gen_op_movl_r14_T1,
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gen_op_movl_r15_T1,
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},
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};
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static GenOpFunc1 *gen_op_movl_TN_im[3] = {
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gen_op_movl_T0_im,
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gen_op_movl_T1_im,
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gen_op_movl_T2_im,
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};
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static GenOpFunc1 *gen_shift_T0_im_thumb[3] = {
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gen_op_shll_T0_im_thumb,
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gen_op_shrl_T0_im_thumb,
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gen_op_sarl_T0_im_thumb,
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};
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static inline void gen_bx(DisasContext *s)
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{
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s->is_jmp = DISAS_UPDATE;
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gen_op_bx_T0();
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}
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#if defined(CONFIG_USER_ONLY)
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#define gen_ldst(name, s) gen_op_##name##_raw()
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#else
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#define gen_ldst(name, s) do { \
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s->is_mem = 1; \
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if (IS_USER(s)) \
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gen_op_##name##_user(); \
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else \
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gen_op_##name##_kernel(); \
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} while (0)
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#endif
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static inline void gen_movl_TN_reg(DisasContext *s, int reg, int t)
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{
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int val;
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if (reg == 15) {
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/* normaly, since we updated PC, we need only to add one insn */
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if (s->thumb)
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val = (long)s->pc + 2;
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else
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val = (long)s->pc + 4;
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gen_op_movl_TN_im[t](val);
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} else {
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gen_op_movl_TN_reg[t][reg]();
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}
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}
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static inline void gen_movl_T0_reg(DisasContext *s, int reg)
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{
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gen_movl_TN_reg(s, reg, 0);
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}
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static inline void gen_movl_T1_reg(DisasContext *s, int reg)
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{
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gen_movl_TN_reg(s, reg, 1);
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}
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static inline void gen_movl_T2_reg(DisasContext *s, int reg)
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{
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gen_movl_TN_reg(s, reg, 2);
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}
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static inline void gen_movl_reg_TN(DisasContext *s, int reg, int t)
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{
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gen_op_movl_reg_TN[t][reg]();
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if (reg == 15) {
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s->is_jmp = DISAS_JUMP;
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}
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}
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static inline void gen_movl_reg_T0(DisasContext *s, int reg)
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{
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gen_movl_reg_TN(s, reg, 0);
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}
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static inline void gen_movl_reg_T1(DisasContext *s, int reg)
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{
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gen_movl_reg_TN(s, reg, 1);
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}
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/* Force a TB lookup after an instruction that changes the CPU state. */
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static inline void gen_lookup_tb(DisasContext *s)
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{
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gen_op_movl_T0_im(s->pc);
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gen_movl_reg_T0(s, 15);
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s->is_jmp = DISAS_UPDATE;
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}
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static inline void gen_add_data_offset(DisasContext *s, unsigned int insn)
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{
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int val, rm, shift, shiftop;
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if (!(insn & (1 << 25))) {
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/* immediate */
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val = insn & 0xfff;
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if (!(insn & (1 << 23)))
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val = -val;
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if (val != 0)
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gen_op_addl_T1_im(val);
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} else {
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/* shift/register */
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rm = (insn) & 0xf;
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shift = (insn >> 7) & 0x1f;
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gen_movl_T2_reg(s, rm);
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shiftop = (insn >> 5) & 3;
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if (shift != 0) {
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gen_shift_T2_im[shiftop](shift);
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} else if (shiftop != 0) {
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gen_shift_T2_0[shiftop]();
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}
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if (!(insn & (1 << 23)))
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gen_op_subl_T1_T2();
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else
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gen_op_addl_T1_T2();
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}
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}
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static inline void gen_add_datah_offset(DisasContext *s, unsigned int insn,
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int extra)
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{
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int val, rm;
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if (insn & (1 << 22)) {
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/* immediate */
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val = (insn & 0xf) | ((insn >> 4) & 0xf0);
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if (!(insn & (1 << 23)))
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val = -val;
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val += extra;
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if (val != 0)
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gen_op_addl_T1_im(val);
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} else {
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/* register */
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if (extra)
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gen_op_addl_T1_im(extra);
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rm = (insn) & 0xf;
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gen_movl_T2_reg(s, rm);
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if (!(insn & (1 << 23)))
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gen_op_subl_T1_T2();
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else
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gen_op_addl_T1_T2();
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}
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}
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#define VFP_OP(name) \
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static inline void gen_vfp_##name(int dp) \
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{ \
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if (dp) \
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gen_op_vfp_##name##d(); \
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else \
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gen_op_vfp_##name##s(); \
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}
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VFP_OP(add)
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VFP_OP(sub)
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VFP_OP(mul)
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VFP_OP(div)
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VFP_OP(neg)
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VFP_OP(abs)
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VFP_OP(sqrt)
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VFP_OP(cmp)
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VFP_OP(cmpe)
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VFP_OP(F1_ld0)
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VFP_OP(uito)
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VFP_OP(sito)
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VFP_OP(toui)
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VFP_OP(touiz)
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VFP_OP(tosi)
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VFP_OP(tosiz)
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#undef VFP_OP
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static inline void gen_vfp_ld(DisasContext *s, int dp)
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{
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if (dp)
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gen_ldst(vfp_ldd, s);
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else
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gen_ldst(vfp_lds, s);
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}
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static inline void gen_vfp_st(DisasContext *s, int dp)
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{
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if (dp)
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gen_ldst(vfp_std, s);
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else
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gen_ldst(vfp_sts, s);
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}
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static inline long
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vfp_reg_offset (int dp, int reg)
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{
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if (dp)
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return offsetof(CPUARMState, vfp.regs[reg]);
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else if (reg & 1) {
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return offsetof(CPUARMState, vfp.regs[reg >> 1])
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+ offsetof(CPU_DoubleU, l.upper);
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} else {
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return offsetof(CPUARMState, vfp.regs[reg >> 1])
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+ offsetof(CPU_DoubleU, l.lower);
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}
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}
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static inline void gen_mov_F0_vreg(int dp, int reg)
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{
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if (dp)
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gen_op_vfp_getreg_F0d(vfp_reg_offset(dp, reg));
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else
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gen_op_vfp_getreg_F0s(vfp_reg_offset(dp, reg));
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}
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static inline void gen_mov_F1_vreg(int dp, int reg)
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{
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if (dp)
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gen_op_vfp_getreg_F1d(vfp_reg_offset(dp, reg));
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else
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gen_op_vfp_getreg_F1s(vfp_reg_offset(dp, reg));
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}
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static inline void gen_mov_vreg_F0(int dp, int reg)
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{
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if (dp)
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gen_op_vfp_setreg_F0d(vfp_reg_offset(dp, reg));
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else
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gen_op_vfp_setreg_F0s(vfp_reg_offset(dp, reg));
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}
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#define ARM_CP_RW_BIT (1 << 20)
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|
|
static inline int gen_iwmmxt_address(DisasContext *s, uint32_t insn)
|
|
{
|
|
int rd;
|
|
uint32_t offset;
|
|
|
|
rd = (insn >> 16) & 0xf;
|
|
gen_movl_T1_reg(s, rd);
|
|
|
|
offset = (insn & 0xff) << ((insn >> 7) & 2);
|
|
if (insn & (1 << 24)) {
|
|
/* Pre indexed */
|
|
if (insn & (1 << 23))
|
|
gen_op_addl_T1_im(offset);
|
|
else
|
|
gen_op_addl_T1_im(-offset);
|
|
|
|
if (insn & (1 << 21))
|
|
gen_movl_reg_T1(s, rd);
|
|
} else if (insn & (1 << 21)) {
|
|
/* Post indexed */
|
|
if (insn & (1 << 23))
|
|
gen_op_movl_T0_im(offset);
|
|
else
|
|
gen_op_movl_T0_im(- offset);
|
|
gen_op_addl_T0_T1();
|
|
gen_movl_reg_T0(s, rd);
|
|
} else if (!(insn & (1 << 23)))
|
|
return 1;
|
|
return 0;
|
|
}
|
|
|
|
static inline int gen_iwmmxt_shift(uint32_t insn, uint32_t mask)
|
|
{
|
|
int rd = (insn >> 0) & 0xf;
|
|
|
|
if (insn & (1 << 8))
|
|
if (rd < ARM_IWMMXT_wCGR0 || rd > ARM_IWMMXT_wCGR3)
|
|
return 1;
|
|
else
|
|
gen_op_iwmmxt_movl_T0_wCx(rd);
|
|
else
|
|
gen_op_iwmmxt_movl_T0_T1_wRn(rd);
|
|
|
|
gen_op_movl_T1_im(mask);
|
|
gen_op_andl_T0_T1();
|
|
return 0;
|
|
}
|
|
|
|
/* Disassemble an iwMMXt instruction. Returns nonzero if an error occured
|
|
(ie. an undefined instruction). */
|
|
static int disas_iwmmxt_insn(CPUState *env, DisasContext *s, uint32_t insn)
|
|
{
|
|
int rd, wrd;
|
|
int rdhi, rdlo, rd0, rd1, i;
|
|
|
|
if ((insn & 0x0e000e00) == 0x0c000000) {
|
|
if ((insn & 0x0fe00ff0) == 0x0c400000) {
|
|
wrd = insn & 0xf;
|
|
rdlo = (insn >> 12) & 0xf;
|
|
rdhi = (insn >> 16) & 0xf;
|
|
if (insn & ARM_CP_RW_BIT) { /* TMRRC */
|
|
gen_op_iwmmxt_movl_T0_T1_wRn(wrd);
|
|
gen_movl_reg_T0(s, rdlo);
|
|
gen_movl_reg_T1(s, rdhi);
|
|
} else { /* TMCRR */
|
|
gen_movl_T0_reg(s, rdlo);
|
|
gen_movl_T1_reg(s, rdhi);
|
|
gen_op_iwmmxt_movl_wRn_T0_T1(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
wrd = (insn >> 12) & 0xf;
|
|
if (gen_iwmmxt_address(s, insn))
|
|
return 1;
|
|
if (insn & ARM_CP_RW_BIT) {
|
|
if ((insn >> 28) == 0xf) { /* WLDRW wCx */
|
|
gen_ldst(ldl, s);
|
|
gen_op_iwmmxt_movl_wCx_T0(wrd);
|
|
} else {
|
|
if (insn & (1 << 8))
|
|
if (insn & (1 << 22)) /* WLDRD */
|
|
gen_ldst(iwmmxt_ldq, s);
|
|
else /* WLDRW wRd */
|
|
gen_ldst(iwmmxt_ldl, s);
|
|
else
|
|
if (insn & (1 << 22)) /* WLDRH */
|
|
gen_ldst(iwmmxt_ldw, s);
|
|
else /* WLDRB */
|
|
gen_ldst(iwmmxt_ldb, s);
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
}
|
|
} else {
|
|
if ((insn >> 28) == 0xf) { /* WSTRW wCx */
|
|
gen_op_iwmmxt_movl_T0_wCx(wrd);
|
|
gen_ldst(stl, s);
|
|
} else {
|
|
gen_op_iwmmxt_movq_M0_wRn(wrd);
|
|
if (insn & (1 << 8))
|
|
if (insn & (1 << 22)) /* WSTRD */
|
|
gen_ldst(iwmmxt_stq, s);
|
|
else /* WSTRW wRd */
|
|
gen_ldst(iwmmxt_stl, s);
|
|
else
|
|
if (insn & (1 << 22)) /* WSTRH */
|
|
gen_ldst(iwmmxt_ldw, s);
|
|
else /* WSTRB */
|
|
gen_ldst(iwmmxt_stb, s);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
if ((insn & 0x0f000000) != 0x0e000000)
|
|
return 1;
|
|
|
|
switch (((insn >> 12) & 0xf00) | ((insn >> 4) & 0xff)) {
|
|
case 0x000: /* WOR */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 0) & 0xf;
|
|
rd1 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
gen_op_iwmmxt_orq_M0_wRn(rd1);
|
|
gen_op_iwmmxt_setpsr_nz();
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x011: /* TMCR */
|
|
if (insn & 0xf)
|
|
return 1;
|
|
rd = (insn >> 12) & 0xf;
|
|
wrd = (insn >> 16) & 0xf;
|
|
switch (wrd) {
|
|
case ARM_IWMMXT_wCID:
|
|
case ARM_IWMMXT_wCASF:
|
|
break;
|
|
case ARM_IWMMXT_wCon:
|
|
gen_op_iwmmxt_set_cup();
|
|
/* Fall through. */
|
|
case ARM_IWMMXT_wCSSF:
|
|
gen_op_iwmmxt_movl_T0_wCx(wrd);
|
|
gen_movl_T1_reg(s, rd);
|
|
gen_op_bicl_T0_T1();
|
|
gen_op_iwmmxt_movl_wCx_T0(wrd);
|
|
break;
|
|
case ARM_IWMMXT_wCGR0:
|
|
case ARM_IWMMXT_wCGR1:
|
|
case ARM_IWMMXT_wCGR2:
|
|
case ARM_IWMMXT_wCGR3:
|
|
gen_op_iwmmxt_set_cup();
|
|
gen_movl_reg_T0(s, rd);
|
|
gen_op_iwmmxt_movl_wCx_T0(wrd);
|
|
break;
|
|
default:
|
|
return 1;
|
|
}
|
|
break;
|
|
case 0x100: /* WXOR */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 0) & 0xf;
|
|
rd1 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
gen_op_iwmmxt_xorq_M0_wRn(rd1);
|
|
gen_op_iwmmxt_setpsr_nz();
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x111: /* TMRC */
|
|
if (insn & 0xf)
|
|
return 1;
|
|
rd = (insn >> 12) & 0xf;
|
|
wrd = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movl_T0_wCx(wrd);
|
|
gen_movl_reg_T0(s, rd);
|
|
break;
|
|
case 0x300: /* WANDN */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 0) & 0xf;
|
|
rd1 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
gen_op_iwmmxt_negq_M0();
|
|
gen_op_iwmmxt_andq_M0_wRn(rd1);
|
|
gen_op_iwmmxt_setpsr_nz();
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x200: /* WAND */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 0) & 0xf;
|
|
rd1 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
gen_op_iwmmxt_andq_M0_wRn(rd1);
|
|
gen_op_iwmmxt_setpsr_nz();
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x810: case 0xa10: /* WMADD */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 0) & 0xf;
|
|
rd1 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_maddsq_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_madduq_M0_wRn(rd1);
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
case 0x10e: case 0x50e: case 0x90e: case 0xd0e: /* WUNPCKIL */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
gen_op_iwmmxt_unpacklb_M0_wRn(rd1);
|
|
break;
|
|
case 1:
|
|
gen_op_iwmmxt_unpacklw_M0_wRn(rd1);
|
|
break;
|
|
case 2:
|
|
gen_op_iwmmxt_unpackll_M0_wRn(rd1);
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x10c: case 0x50c: case 0x90c: case 0xd0c: /* WUNPCKIH */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
gen_op_iwmmxt_unpackhb_M0_wRn(rd1);
|
|
break;
|
|
case 1:
|
|
gen_op_iwmmxt_unpackhw_M0_wRn(rd1);
|
|
break;
|
|
case 2:
|
|
gen_op_iwmmxt_unpackhl_M0_wRn(rd1);
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x012: case 0x112: case 0x412: case 0x512: /* WSAD */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
if (insn & (1 << 22))
|
|
gen_op_iwmmxt_sadw_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_sadb_M0_wRn(rd1);
|
|
if (!(insn & (1 << 20)))
|
|
gen_op_iwmmxt_addl_M0_wRn(wrd);
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
case 0x010: case 0x110: case 0x210: case 0x310: /* WMUL */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_mulsw_M0_wRn(rd1, (insn & (1 << 20)) ? 16 : 0);
|
|
else
|
|
gen_op_iwmmxt_muluw_M0_wRn(rd1, (insn & (1 << 20)) ? 16 : 0);
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
case 0x410: case 0x510: case 0x610: case 0x710: /* WMAC */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_macsw_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_macuw_M0_wRn(rd1);
|
|
if (!(insn & (1 << 20))) {
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_addsq_M0_wRn(wrd);
|
|
else
|
|
gen_op_iwmmxt_adduq_M0_wRn(wrd);
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
case 0x006: case 0x406: case 0x806: case 0xc06: /* WCMPEQ */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
gen_op_iwmmxt_cmpeqb_M0_wRn(rd1);
|
|
break;
|
|
case 1:
|
|
gen_op_iwmmxt_cmpeqw_M0_wRn(rd1);
|
|
break;
|
|
case 2:
|
|
gen_op_iwmmxt_cmpeql_M0_wRn(rd1);
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x800: case 0x900: case 0xc00: case 0xd00: /* WAVG2 */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
if (insn & (1 << 22))
|
|
gen_op_iwmmxt_avgw_M0_wRn(rd1, (insn >> 20) & 1);
|
|
else
|
|
gen_op_iwmmxt_avgb_M0_wRn(rd1, (insn >> 20) & 1);
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x802: case 0x902: case 0xa02: case 0xb02: /* WALIGNR */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
gen_op_iwmmxt_movl_T0_wCx(ARM_IWMMXT_wCGR0 + ((insn >> 20) & 3));
|
|
gen_op_movl_T1_im(7);
|
|
gen_op_andl_T0_T1();
|
|
gen_op_iwmmxt_align_M0_T0_wRn(rd1);
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
case 0x601: case 0x605: case 0x609: case 0x60d: /* TINSR */
|
|
rd = (insn >> 12) & 0xf;
|
|
wrd = (insn >> 16) & 0xf;
|
|
gen_movl_T0_reg(s, rd);
|
|
gen_op_iwmmxt_movq_M0_wRn(wrd);
|
|
switch ((insn >> 6) & 3) {
|
|
case 0:
|
|
gen_op_movl_T1_im(0xff);
|
|
gen_op_iwmmxt_insr_M0_T0_T1((insn & 7) << 3);
|
|
break;
|
|
case 1:
|
|
gen_op_movl_T1_im(0xffff);
|
|
gen_op_iwmmxt_insr_M0_T0_T1((insn & 3) << 4);
|
|
break;
|
|
case 2:
|
|
gen_op_movl_T1_im(0xffffffff);
|
|
gen_op_iwmmxt_insr_M0_T0_T1((insn & 1) << 5);
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
case 0x107: case 0x507: case 0x907: case 0xd07: /* TEXTRM */
|
|
rd = (insn >> 12) & 0xf;
|
|
wrd = (insn >> 16) & 0xf;
|
|
if (rd == 15)
|
|
return 1;
|
|
gen_op_iwmmxt_movq_M0_wRn(wrd);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
if (insn & 8)
|
|
gen_op_iwmmxt_extrsb_T0_M0((insn & 7) << 3);
|
|
else {
|
|
gen_op_movl_T1_im(0xff);
|
|
gen_op_iwmmxt_extru_T0_M0_T1((insn & 7) << 3);
|
|
}
|
|
break;
|
|
case 1:
|
|
if (insn & 8)
|
|
gen_op_iwmmxt_extrsw_T0_M0((insn & 3) << 4);
|
|
else {
|
|
gen_op_movl_T1_im(0xffff);
|
|
gen_op_iwmmxt_extru_T0_M0_T1((insn & 3) << 4);
|
|
}
|
|
break;
|
|
case 2:
|
|
gen_op_movl_T1_im(0xffffffff);
|
|
gen_op_iwmmxt_extru_T0_M0_T1((insn & 1) << 5);
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_movl_reg_TN[0][rd]();
|
|
break;
|
|
case 0x117: case 0x517: case 0x917: case 0xd17: /* TEXTRC */
|
|
if ((insn & 0x000ff008) != 0x0003f000)
|
|
return 1;
|
|
gen_op_iwmmxt_movl_T1_wCx(ARM_IWMMXT_wCASF);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
gen_op_shrl_T1_im(((insn & 7) << 2) + 0);
|
|
break;
|
|
case 1:
|
|
gen_op_shrl_T1_im(((insn & 3) << 3) + 4);
|
|
break;
|
|
case 2:
|
|
gen_op_shrl_T1_im(((insn & 1) << 4) + 12);
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_shll_T1_im(28);
|
|
gen_op_movl_T0_T1();
|
|
gen_op_movl_cpsr_T0(0xf0000000);
|
|
break;
|
|
case 0x401: case 0x405: case 0x409: case 0x40d: /* TBCST */
|
|
rd = (insn >> 12) & 0xf;
|
|
wrd = (insn >> 16) & 0xf;
|
|
gen_movl_T0_reg(s, rd);
|
|
switch ((insn >> 6) & 3) {
|
|
case 0:
|
|
gen_op_iwmmxt_bcstb_M0_T0();
|
|
break;
|
|
case 1:
|
|
gen_op_iwmmxt_bcstw_M0_T0();
|
|
break;
|
|
case 2:
|
|
gen_op_iwmmxt_bcstl_M0_T0();
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
case 0x113: case 0x513: case 0x913: case 0xd13: /* TANDC */
|
|
if ((insn & 0x000ff00f) != 0x0003f000)
|
|
return 1;
|
|
gen_op_iwmmxt_movl_T1_wCx(ARM_IWMMXT_wCASF);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
for (i = 0; i < 7; i ++) {
|
|
gen_op_shll_T1_im(4);
|
|
gen_op_andl_T0_T1();
|
|
}
|
|
break;
|
|
case 1:
|
|
for (i = 0; i < 3; i ++) {
|
|
gen_op_shll_T1_im(8);
|
|
gen_op_andl_T0_T1();
|
|
}
|
|
break;
|
|
case 2:
|
|
gen_op_shll_T1_im(16);
|
|
gen_op_andl_T0_T1();
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_movl_cpsr_T0(0xf0000000);
|
|
break;
|
|
case 0x01c: case 0x41c: case 0x81c: case 0xc1c: /* WACC */
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
gen_op_iwmmxt_addcb_M0();
|
|
break;
|
|
case 1:
|
|
gen_op_iwmmxt_addcw_M0();
|
|
break;
|
|
case 2:
|
|
gen_op_iwmmxt_addcl_M0();
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
case 0x115: case 0x515: case 0x915: case 0xd15: /* TORC */
|
|
if ((insn & 0x000ff00f) != 0x0003f000)
|
|
return 1;
|
|
gen_op_iwmmxt_movl_T1_wCx(ARM_IWMMXT_wCASF);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
for (i = 0; i < 7; i ++) {
|
|
gen_op_shll_T1_im(4);
|
|
gen_op_orl_T0_T1();
|
|
}
|
|
break;
|
|
case 1:
|
|
for (i = 0; i < 3; i ++) {
|
|
gen_op_shll_T1_im(8);
|
|
gen_op_orl_T0_T1();
|
|
}
|
|
break;
|
|
case 2:
|
|
gen_op_shll_T1_im(16);
|
|
gen_op_orl_T0_T1();
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_movl_T1_im(0xf0000000);
|
|
gen_op_andl_T0_T1();
|
|
gen_op_movl_cpsr_T0(0xf0000000);
|
|
break;
|
|
case 0x103: case 0x503: case 0x903: case 0xd03: /* TMOVMSK */
|
|
rd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
if ((insn & 0xf) != 0)
|
|
return 1;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
gen_op_iwmmxt_msbb_T0_M0();
|
|
break;
|
|
case 1:
|
|
gen_op_iwmmxt_msbw_T0_M0();
|
|
break;
|
|
case 2:
|
|
gen_op_iwmmxt_msbl_T0_M0();
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_movl_reg_T0(s, rd);
|
|
break;
|
|
case 0x106: case 0x306: case 0x506: case 0x706: /* WCMPGT */
|
|
case 0x906: case 0xb06: case 0xd06: case 0xf06:
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_cmpgtsb_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_cmpgtub_M0_wRn(rd1);
|
|
break;
|
|
case 1:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_cmpgtsw_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_cmpgtuw_M0_wRn(rd1);
|
|
break;
|
|
case 2:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_cmpgtsl_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_cmpgtul_M0_wRn(rd1);
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x00e: case 0x20e: case 0x40e: case 0x60e: /* WUNPCKEL */
|
|
case 0x80e: case 0xa0e: case 0xc0e: case 0xe0e:
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_unpacklsb_M0();
|
|
else
|
|
gen_op_iwmmxt_unpacklub_M0();
|
|
break;
|
|
case 1:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_unpacklsw_M0();
|
|
else
|
|
gen_op_iwmmxt_unpackluw_M0();
|
|
break;
|
|
case 2:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_unpacklsl_M0();
|
|
else
|
|
gen_op_iwmmxt_unpacklul_M0();
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x00c: case 0x20c: case 0x40c: case 0x60c: /* WUNPCKEH */
|
|
case 0x80c: case 0xa0c: case 0xc0c: case 0xe0c:
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_unpackhsb_M0();
|
|
else
|
|
gen_op_iwmmxt_unpackhub_M0();
|
|
break;
|
|
case 1:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_unpackhsw_M0();
|
|
else
|
|
gen_op_iwmmxt_unpackhuw_M0();
|
|
break;
|
|
case 2:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_unpackhsl_M0();
|
|
else
|
|
gen_op_iwmmxt_unpackhul_M0();
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x204: case 0x604: case 0xa04: case 0xe04: /* WSRL */
|
|
case 0x214: case 0x614: case 0xa14: case 0xe14:
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
if (gen_iwmmxt_shift(insn, 0xff))
|
|
return 1;
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
return 1;
|
|
case 1:
|
|
gen_op_iwmmxt_srlw_M0_T0();
|
|
break;
|
|
case 2:
|
|
gen_op_iwmmxt_srll_M0_T0();
|
|
break;
|
|
case 3:
|
|
gen_op_iwmmxt_srlq_M0_T0();
|
|
break;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x004: case 0x404: case 0x804: case 0xc04: /* WSRA */
|
|
case 0x014: case 0x414: case 0x814: case 0xc14:
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
if (gen_iwmmxt_shift(insn, 0xff))
|
|
return 1;
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
return 1;
|
|
case 1:
|
|
gen_op_iwmmxt_sraw_M0_T0();
|
|
break;
|
|
case 2:
|
|
gen_op_iwmmxt_sral_M0_T0();
|
|
break;
|
|
case 3:
|
|
gen_op_iwmmxt_sraq_M0_T0();
|
|
break;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x104: case 0x504: case 0x904: case 0xd04: /* WSLL */
|
|
case 0x114: case 0x514: case 0x914: case 0xd14:
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
if (gen_iwmmxt_shift(insn, 0xff))
|
|
return 1;
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
return 1;
|
|
case 1:
|
|
gen_op_iwmmxt_sllw_M0_T0();
|
|
break;
|
|
case 2:
|
|
gen_op_iwmmxt_slll_M0_T0();
|
|
break;
|
|
case 3:
|
|
gen_op_iwmmxt_sllq_M0_T0();
|
|
break;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x304: case 0x704: case 0xb04: case 0xf04: /* WROR */
|
|
case 0x314: case 0x714: case 0xb14: case 0xf14:
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
return 1;
|
|
case 1:
|
|
if (gen_iwmmxt_shift(insn, 0xf))
|
|
return 1;
|
|
gen_op_iwmmxt_rorw_M0_T0();
|
|
break;
|
|
case 2:
|
|
if (gen_iwmmxt_shift(insn, 0x1f))
|
|
return 1;
|
|
gen_op_iwmmxt_rorl_M0_T0();
|
|
break;
|
|
case 3:
|
|
if (gen_iwmmxt_shift(insn, 0x3f))
|
|
return 1;
|
|
gen_op_iwmmxt_rorq_M0_T0();
|
|
break;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x116: case 0x316: case 0x516: case 0x716: /* WMIN */
|
|
case 0x916: case 0xb16: case 0xd16: case 0xf16:
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_minsb_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_minub_M0_wRn(rd1);
|
|
break;
|
|
case 1:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_minsw_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_minuw_M0_wRn(rd1);
|
|
break;
|
|
case 2:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_minsl_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_minul_M0_wRn(rd1);
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
case 0x016: case 0x216: case 0x416: case 0x616: /* WMAX */
|
|
case 0x816: case 0xa16: case 0xc16: case 0xe16:
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_maxsb_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_maxub_M0_wRn(rd1);
|
|
break;
|
|
case 1:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_maxsw_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_maxuw_M0_wRn(rd1);
|
|
break;
|
|
case 2:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_maxsl_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_maxul_M0_wRn(rd1);
|
|
break;
|
|
case 3:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
case 0x002: case 0x102: case 0x202: case 0x302: /* WALIGNI */
|
|
case 0x402: case 0x502: case 0x602: case 0x702:
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
gen_op_movl_T0_im((insn >> 20) & 3);
|
|
gen_op_iwmmxt_align_M0_T0_wRn(rd1);
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
case 0x01a: case 0x11a: case 0x21a: case 0x31a: /* WSUB */
|
|
case 0x41a: case 0x51a: case 0x61a: case 0x71a:
|
|
case 0x81a: case 0x91a: case 0xa1a: case 0xb1a:
|
|
case 0xc1a: case 0xd1a: case 0xe1a: case 0xf1a:
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 20) & 0xf) {
|
|
case 0x0:
|
|
gen_op_iwmmxt_subnb_M0_wRn(rd1);
|
|
break;
|
|
case 0x1:
|
|
gen_op_iwmmxt_subub_M0_wRn(rd1);
|
|
break;
|
|
case 0x3:
|
|
gen_op_iwmmxt_subsb_M0_wRn(rd1);
|
|
break;
|
|
case 0x4:
|
|
gen_op_iwmmxt_subnw_M0_wRn(rd1);
|
|
break;
|
|
case 0x5:
|
|
gen_op_iwmmxt_subuw_M0_wRn(rd1);
|
|
break;
|
|
case 0x7:
|
|
gen_op_iwmmxt_subsw_M0_wRn(rd1);
|
|
break;
|
|
case 0x8:
|
|
gen_op_iwmmxt_subnl_M0_wRn(rd1);
|
|
break;
|
|
case 0x9:
|
|
gen_op_iwmmxt_subul_M0_wRn(rd1);
|
|
break;
|
|
case 0xb:
|
|
gen_op_iwmmxt_subsl_M0_wRn(rd1);
|
|
break;
|
|
default:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x01e: case 0x11e: case 0x21e: case 0x31e: /* WSHUFH */
|
|
case 0x41e: case 0x51e: case 0x61e: case 0x71e:
|
|
case 0x81e: case 0x91e: case 0xa1e: case 0xb1e:
|
|
case 0xc1e: case 0xd1e: case 0xe1e: case 0xf1e:
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
gen_op_movl_T0_im(((insn >> 16) & 0xf0) | (insn & 0x0f));
|
|
gen_op_iwmmxt_shufh_M0_T0();
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x018: case 0x118: case 0x218: case 0x318: /* WADD */
|
|
case 0x418: case 0x518: case 0x618: case 0x718:
|
|
case 0x818: case 0x918: case 0xa18: case 0xb18:
|
|
case 0xc18: case 0xd18: case 0xe18: case 0xf18:
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
switch ((insn >> 20) & 0xf) {
|
|
case 0x0:
|
|
gen_op_iwmmxt_addnb_M0_wRn(rd1);
|
|
break;
|
|
case 0x1:
|
|
gen_op_iwmmxt_addub_M0_wRn(rd1);
|
|
break;
|
|
case 0x3:
|
|
gen_op_iwmmxt_addsb_M0_wRn(rd1);
|
|
break;
|
|
case 0x4:
|
|
gen_op_iwmmxt_addnw_M0_wRn(rd1);
|
|
break;
|
|
case 0x5:
|
|
gen_op_iwmmxt_adduw_M0_wRn(rd1);
|
|
break;
|
|
case 0x7:
|
|
gen_op_iwmmxt_addsw_M0_wRn(rd1);
|
|
break;
|
|
case 0x8:
|
|
gen_op_iwmmxt_addnl_M0_wRn(rd1);
|
|
break;
|
|
case 0x9:
|
|
gen_op_iwmmxt_addul_M0_wRn(rd1);
|
|
break;
|
|
case 0xb:
|
|
gen_op_iwmmxt_addsl_M0_wRn(rd1);
|
|
break;
|
|
default:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x008: case 0x108: case 0x208: case 0x308: /* WPACK */
|
|
case 0x408: case 0x508: case 0x608: case 0x708:
|
|
case 0x808: case 0x908: case 0xa08: case 0xb08:
|
|
case 0xc08: case 0xd08: case 0xe08: case 0xf08:
|
|
wrd = (insn >> 12) & 0xf;
|
|
rd0 = (insn >> 16) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
gen_op_iwmmxt_movq_M0_wRn(rd0);
|
|
if (!(insn & (1 << 20)))
|
|
return 1;
|
|
switch ((insn >> 22) & 3) {
|
|
case 0:
|
|
return 1;
|
|
case 1:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_packsw_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_packuw_M0_wRn(rd1);
|
|
break;
|
|
case 2:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_packsl_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_packul_M0_wRn(rd1);
|
|
break;
|
|
case 3:
|
|
if (insn & (1 << 21))
|
|
gen_op_iwmmxt_packsq_M0_wRn(rd1);
|
|
else
|
|
gen_op_iwmmxt_packuq_M0_wRn(rd1);
|
|
break;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
gen_op_iwmmxt_set_cup();
|
|
break;
|
|
case 0x201: case 0x203: case 0x205: case 0x207:
|
|
case 0x209: case 0x20b: case 0x20d: case 0x20f:
|
|
case 0x211: case 0x213: case 0x215: case 0x217:
|
|
case 0x219: case 0x21b: case 0x21d: case 0x21f:
|
|
wrd = (insn >> 5) & 0xf;
|
|
rd0 = (insn >> 12) & 0xf;
|
|
rd1 = (insn >> 0) & 0xf;
|
|
if (rd0 == 0xf || rd1 == 0xf)
|
|
return 1;
|
|
gen_op_iwmmxt_movq_M0_wRn(wrd);
|
|
switch ((insn >> 16) & 0xf) {
|
|
case 0x0: /* TMIA */
|
|
gen_op_movl_TN_reg[0][rd0]();
|
|
gen_op_movl_TN_reg[1][rd1]();
|
|
gen_op_iwmmxt_muladdsl_M0_T0_T1();
|
|
break;
|
|
case 0x8: /* TMIAPH */
|
|
gen_op_movl_TN_reg[0][rd0]();
|
|
gen_op_movl_TN_reg[1][rd1]();
|
|
gen_op_iwmmxt_muladdsw_M0_T0_T1();
|
|
break;
|
|
case 0xc: case 0xd: case 0xe: case 0xf: /* TMIAxy */
|
|
gen_op_movl_TN_reg[1][rd0]();
|
|
if (insn & (1 << 16))
|
|
gen_op_shrl_T1_im(16);
|
|
gen_op_movl_T0_T1();
|
|
gen_op_movl_TN_reg[1][rd1]();
|
|
if (insn & (1 << 17))
|
|
gen_op_shrl_T1_im(16);
|
|
gen_op_iwmmxt_muladdswl_M0_T0_T1();
|
|
break;
|
|
default:
|
|
return 1;
|
|
}
|
|
gen_op_iwmmxt_movq_wRn_M0(wrd);
|
|
gen_op_iwmmxt_set_mup();
|
|
break;
|
|
default:
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Disassemble an XScale DSP instruction. Returns nonzero if an error occured
|
|
(ie. an undefined instruction). */
|
|
static int disas_dsp_insn(CPUState *env, DisasContext *s, uint32_t insn)
|
|
{
|
|
int acc, rd0, rd1, rdhi, rdlo;
|
|
|
|
if ((insn & 0x0ff00f10) == 0x0e200010) {
|
|
/* Multiply with Internal Accumulate Format */
|
|
rd0 = (insn >> 12) & 0xf;
|
|
rd1 = insn & 0xf;
|
|
acc = (insn >> 5) & 7;
|
|
|
|
if (acc != 0)
|
|
return 1;
|
|
|
|
switch ((insn >> 16) & 0xf) {
|
|
case 0x0: /* MIA */
|
|
gen_op_movl_TN_reg[0][rd0]();
|
|
gen_op_movl_TN_reg[1][rd1]();
|
|
gen_op_iwmmxt_muladdsl_M0_T0_T1();
|
|
break;
|
|
case 0x8: /* MIAPH */
|
|
gen_op_movl_TN_reg[0][rd0]();
|
|
gen_op_movl_TN_reg[1][rd1]();
|
|
gen_op_iwmmxt_muladdsw_M0_T0_T1();
|
|
break;
|
|
case 0xc: /* MIABB */
|
|
case 0xd: /* MIABT */
|
|
case 0xe: /* MIATB */
|
|
case 0xf: /* MIATT */
|
|
gen_op_movl_TN_reg[1][rd0]();
|
|
if (insn & (1 << 16))
|
|
gen_op_shrl_T1_im(16);
|
|
gen_op_movl_T0_T1();
|
|
gen_op_movl_TN_reg[1][rd1]();
|
|
if (insn & (1 << 17))
|
|
gen_op_shrl_T1_im(16);
|
|
gen_op_iwmmxt_muladdswl_M0_T0_T1();
|
|
break;
|
|
default:
|
|
return 1;
|
|
}
|
|
|
|
gen_op_iwmmxt_movq_wRn_M0(acc);
|
|
return 0;
|
|
}
|
|
|
|
if ((insn & 0x0fe00ff8) == 0x0c400000) {
|
|
/* Internal Accumulator Access Format */
|
|
rdhi = (insn >> 16) & 0xf;
|
|
rdlo = (insn >> 12) & 0xf;
|
|
acc = insn & 7;
|
|
|
|
if (acc != 0)
|
|
return 1;
|
|
|
|
if (insn & ARM_CP_RW_BIT) { /* MRA */
|
|
gen_op_iwmmxt_movl_T0_T1_wRn(acc);
|
|
gen_op_movl_reg_TN[0][rdlo]();
|
|
gen_op_movl_T0_im((1 << (40 - 32)) - 1);
|
|
gen_op_andl_T0_T1();
|
|
gen_op_movl_reg_TN[0][rdhi]();
|
|
} else { /* MAR */
|
|
gen_op_movl_TN_reg[0][rdlo]();
|
|
gen_op_movl_TN_reg[1][rdhi]();
|
|
gen_op_iwmmxt_movl_wRn_T0_T1(acc);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* Disassemble system coprocessor instruction. Return nonzero if
|
|
instruction is not defined. */
|
|
static int disas_cp_insn(CPUState *env, DisasContext *s, uint32_t insn)
|
|
{
|
|
uint32_t rd = (insn >> 12) & 0xf;
|
|
uint32_t cp = (insn >> 8) & 0xf;
|
|
if (IS_USER(s)) {
|
|
return 1;
|
|
}
|
|
|
|
if (insn & ARM_CP_RW_BIT) {
|
|
if (!env->cp[cp].cp_read)
|
|
return 1;
|
|
gen_op_movl_T0_im((uint32_t) s->pc);
|
|
gen_op_movl_reg_TN[0][15]();
|
|
gen_op_movl_T0_cp(insn);
|
|
gen_movl_reg_T0(s, rd);
|
|
} else {
|
|
if (!env->cp[cp].cp_write)
|
|
return 1;
|
|
gen_op_movl_T0_im((uint32_t) s->pc);
|
|
gen_op_movl_reg_TN[0][15]();
|
|
gen_movl_T0_reg(s, rd);
|
|
gen_op_movl_cp_T0(insn);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Disassemble system coprocessor (cp15) instruction. Return nonzero if
|
|
instruction is not defined. */
|
|
static int disas_cp15_insn(CPUState *env, DisasContext *s, uint32_t insn)
|
|
{
|
|
uint32_t rd;
|
|
|
|
/* ??? Some cp15 registers are accessible from userspace. */
|
|
if (IS_USER(s)) {
|
|
return 1;
|
|
}
|
|
if ((insn & 0x0fff0fff) == 0x0e070f90
|
|
|| (insn & 0x0fff0fff) == 0x0e070f58) {
|
|
/* Wait for interrupt. */
|
|
gen_op_movl_T0_im((long)s->pc);
|
|
gen_op_movl_reg_TN[0][15]();
|
|
gen_op_wfi();
|
|
s->is_jmp = DISAS_JUMP;
|
|
return 0;
|
|
}
|
|
rd = (insn >> 12) & 0xf;
|
|
if (insn & ARM_CP_RW_BIT) {
|
|
gen_op_movl_T0_cp15(insn);
|
|
/* If the destination register is r15 then sets condition codes. */
|
|
if (rd != 15)
|
|
gen_movl_reg_T0(s, rd);
|
|
} else {
|
|
gen_movl_T0_reg(s, rd);
|
|
gen_op_movl_cp15_T0(insn);
|
|
/* Normally we would always end the TB here, but Linux
|
|
* arch/arm/mach-pxa/sleep.S expects two instructions following
|
|
* an MMU enable to execute from cache. Imitate this behaviour. */
|
|
if (!arm_feature(env, ARM_FEATURE_XSCALE) ||
|
|
(insn & 0x0fff0fff) != 0x0e010f10)
|
|
gen_lookup_tb(s);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Disassemble a VFP instruction. Returns nonzero if an error occured
|
|
(ie. an undefined instruction). */
|
|
static int disas_vfp_insn(CPUState * env, DisasContext *s, uint32_t insn)
|
|
{
|
|
uint32_t rd, rn, rm, op, i, n, offset, delta_d, delta_m, bank_mask;
|
|
int dp, veclen;
|
|
|
|
if (!arm_feature(env, ARM_FEATURE_VFP))
|
|
return 1;
|
|
|
|
if ((env->vfp.xregs[ARM_VFP_FPEXC] & (1 << 30)) == 0) {
|
|
/* VFP disabled. Only allow fmxr/fmrx to/from fpexc and fpsid. */
|
|
if ((insn & 0x0fe00fff) != 0x0ee00a10)
|
|
return 1;
|
|
rn = (insn >> 16) & 0xf;
|
|
if (rn != 0 && rn != 8)
|
|
return 1;
|
|
}
|
|
dp = ((insn & 0xf00) == 0xb00);
|
|
switch ((insn >> 24) & 0xf) {
|
|
case 0xe:
|
|
if (insn & (1 << 4)) {
|
|
/* single register transfer */
|
|
if ((insn & 0x6f) != 0x00)
|
|
return 1;
|
|
rd = (insn >> 12) & 0xf;
|
|
if (dp) {
|
|
if (insn & 0x80)
|
|
return 1;
|
|
rn = (insn >> 16) & 0xf;
|
|
/* Get the existing value even for arm->vfp moves because
|
|
we only set half the register. */
|
|
gen_mov_F0_vreg(1, rn);
|
|
gen_op_vfp_mrrd();
|
|
if (insn & ARM_CP_RW_BIT) {
|
|
/* vfp->arm */
|
|
if (insn & (1 << 21))
|
|
gen_movl_reg_T1(s, rd);
|
|
else
|
|
gen_movl_reg_T0(s, rd);
|
|
} else {
|
|
/* arm->vfp */
|
|
if (insn & (1 << 21))
|
|
gen_movl_T1_reg(s, rd);
|
|
else
|
|
gen_movl_T0_reg(s, rd);
|
|
gen_op_vfp_mdrr();
|
|
gen_mov_vreg_F0(dp, rn);
|
|
}
|
|
} else {
|
|
rn = ((insn >> 15) & 0x1e) | ((insn >> 7) & 1);
|
|
if (insn & ARM_CP_RW_BIT) {
|
|
/* vfp->arm */
|
|
if (insn & (1 << 21)) {
|
|
/* system register */
|
|
rn >>= 1;
|
|
switch (rn) {
|
|
case ARM_VFP_FPSID:
|
|
case ARM_VFP_FPEXC:
|
|
case ARM_VFP_FPINST:
|
|
case ARM_VFP_FPINST2:
|
|
gen_op_vfp_movl_T0_xreg(rn);
|
|
break;
|
|
case ARM_VFP_FPSCR:
|
|
if (rd == 15)
|
|
gen_op_vfp_movl_T0_fpscr_flags();
|
|
else
|
|
gen_op_vfp_movl_T0_fpscr();
|
|
break;
|
|
default:
|
|
return 1;
|
|
}
|
|
} else {
|
|
gen_mov_F0_vreg(0, rn);
|
|
gen_op_vfp_mrs();
|
|
}
|
|
if (rd == 15) {
|
|
/* Set the 4 flag bits in the CPSR. */
|
|
gen_op_movl_cpsr_T0(0xf0000000);
|
|
} else
|
|
gen_movl_reg_T0(s, rd);
|
|
} else {
|
|
/* arm->vfp */
|
|
gen_movl_T0_reg(s, rd);
|
|
if (insn & (1 << 21)) {
|
|
rn >>= 1;
|
|
/* system register */
|
|
switch (rn) {
|
|
case ARM_VFP_FPSID:
|
|
/* Writes are ignored. */
|
|
break;
|
|
case ARM_VFP_FPSCR:
|
|
gen_op_vfp_movl_fpscr_T0();
|
|
gen_lookup_tb(s);
|
|
break;
|
|
case ARM_VFP_FPEXC:
|
|
gen_op_vfp_movl_xreg_T0(rn);
|
|
gen_lookup_tb(s);
|
|
break;
|
|
case ARM_VFP_FPINST:
|
|
case ARM_VFP_FPINST2:
|
|
gen_op_vfp_movl_xreg_T0(rn);
|
|
break;
|
|
default:
|
|
return 1;
|
|
}
|
|
} else {
|
|
gen_op_vfp_msr();
|
|
gen_mov_vreg_F0(0, rn);
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
/* data processing */
|
|
/* The opcode is in bits 23, 21, 20 and 6. */
|
|
op = ((insn >> 20) & 8) | ((insn >> 19) & 6) | ((insn >> 6) & 1);
|
|
if (dp) {
|
|
if (op == 15) {
|
|
/* rn is opcode */
|
|
rn = ((insn >> 15) & 0x1e) | ((insn >> 7) & 1);
|
|
} else {
|
|
/* rn is register number */
|
|
if (insn & (1 << 7))
|
|
return 1;
|
|
rn = (insn >> 16) & 0xf;
|
|
}
|
|
|
|
if (op == 15 && (rn == 15 || rn > 17)) {
|
|
/* Integer or single precision destination. */
|
|
rd = ((insn >> 11) & 0x1e) | ((insn >> 22) & 1);
|
|
} else {
|
|
if (insn & (1 << 22))
|
|
return 1;
|
|
rd = (insn >> 12) & 0xf;
|
|
}
|
|
|
|
if (op == 15 && (rn == 16 || rn == 17)) {
|
|
/* Integer source. */
|
|
rm = ((insn << 1) & 0x1e) | ((insn >> 5) & 1);
|
|
} else {
|
|
if (insn & (1 << 5))
|
|
return 1;
|
|
rm = insn & 0xf;
|
|
}
|
|
} else {
|
|
rn = ((insn >> 15) & 0x1e) | ((insn >> 7) & 1);
|
|
if (op == 15 && rn == 15) {
|
|
/* Double precision destination. */
|
|
if (insn & (1 << 22))
|
|
return 1;
|
|
rd = (insn >> 12) & 0xf;
|
|
} else
|
|
rd = ((insn >> 11) & 0x1e) | ((insn >> 22) & 1);
|
|
rm = ((insn << 1) & 0x1e) | ((insn >> 5) & 1);
|
|
}
|
|
|
|
veclen = env->vfp.vec_len;
|
|
if (op == 15 && rn > 3)
|
|
veclen = 0;
|
|
|
|
/* Shut up compiler warnings. */
|
|
delta_m = 0;
|
|
delta_d = 0;
|
|
bank_mask = 0;
|
|
|
|
if (veclen > 0) {
|
|
if (dp)
|
|
bank_mask = 0xc;
|
|
else
|
|
bank_mask = 0x18;
|
|
|
|
/* Figure out what type of vector operation this is. */
|
|
if ((rd & bank_mask) == 0) {
|
|
/* scalar */
|
|
veclen = 0;
|
|
} else {
|
|
if (dp)
|
|
delta_d = (env->vfp.vec_stride >> 1) + 1;
|
|
else
|
|
delta_d = env->vfp.vec_stride + 1;
|
|
|
|
if ((rm & bank_mask) == 0) {
|
|
/* mixed scalar/vector */
|
|
delta_m = 0;
|
|
} else {
|
|
/* vector */
|
|
delta_m = delta_d;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Load the initial operands. */
|
|
if (op == 15) {
|
|
switch (rn) {
|
|
case 16:
|
|
case 17:
|
|
/* Integer source */
|
|
gen_mov_F0_vreg(0, rm);
|
|
break;
|
|
case 8:
|
|
case 9:
|
|
/* Compare */
|
|
gen_mov_F0_vreg(dp, rd);
|
|
gen_mov_F1_vreg(dp, rm);
|
|
break;
|
|
case 10:
|
|
case 11:
|
|
/* Compare with zero */
|
|
gen_mov_F0_vreg(dp, rd);
|
|
gen_vfp_F1_ld0(dp);
|
|
break;
|
|
default:
|
|
/* One source operand. */
|
|
gen_mov_F0_vreg(dp, rm);
|
|
}
|
|
} else {
|
|
/* Two source operands. */
|
|
gen_mov_F0_vreg(dp, rn);
|
|
gen_mov_F1_vreg(dp, rm);
|
|
}
|
|
|
|
for (;;) {
|
|
/* Perform the calculation. */
|
|
switch (op) {
|
|
case 0: /* mac: fd + (fn * fm) */
|
|
gen_vfp_mul(dp);
|
|
gen_mov_F1_vreg(dp, rd);
|
|
gen_vfp_add(dp);
|
|
break;
|
|
case 1: /* nmac: fd - (fn * fm) */
|
|
gen_vfp_mul(dp);
|
|
gen_vfp_neg(dp);
|
|
gen_mov_F1_vreg(dp, rd);
|
|
gen_vfp_add(dp);
|
|
break;
|
|
case 2: /* msc: -fd + (fn * fm) */
|
|
gen_vfp_mul(dp);
|
|
gen_mov_F1_vreg(dp, rd);
|
|
gen_vfp_sub(dp);
|
|
break;
|
|
case 3: /* nmsc: -fd - (fn * fm) */
|
|
gen_vfp_mul(dp);
|
|
gen_mov_F1_vreg(dp, rd);
|
|
gen_vfp_add(dp);
|
|
gen_vfp_neg(dp);
|
|
break;
|
|
case 4: /* mul: fn * fm */
|
|
gen_vfp_mul(dp);
|
|
break;
|
|
case 5: /* nmul: -(fn * fm) */
|
|
gen_vfp_mul(dp);
|
|
gen_vfp_neg(dp);
|
|
break;
|
|
case 6: /* add: fn + fm */
|
|
gen_vfp_add(dp);
|
|
break;
|
|
case 7: /* sub: fn - fm */
|
|
gen_vfp_sub(dp);
|
|
break;
|
|
case 8: /* div: fn / fm */
|
|
gen_vfp_div(dp);
|
|
break;
|
|
case 15: /* extension space */
|
|
switch (rn) {
|
|
case 0: /* cpy */
|
|
/* no-op */
|
|
break;
|
|
case 1: /* abs */
|
|
gen_vfp_abs(dp);
|
|
break;
|
|
case 2: /* neg */
|
|
gen_vfp_neg(dp);
|
|
break;
|
|
case 3: /* sqrt */
|
|
gen_vfp_sqrt(dp);
|
|
break;
|
|
case 8: /* cmp */
|
|
gen_vfp_cmp(dp);
|
|
break;
|
|
case 9: /* cmpe */
|
|
gen_vfp_cmpe(dp);
|
|
break;
|
|
case 10: /* cmpz */
|
|
gen_vfp_cmp(dp);
|
|
break;
|
|
case 11: /* cmpez */
|
|
gen_vfp_F1_ld0(dp);
|
|
gen_vfp_cmpe(dp);
|
|
break;
|
|
case 15: /* single<->double conversion */
|
|
if (dp)
|
|
gen_op_vfp_fcvtsd();
|
|
else
|
|
gen_op_vfp_fcvtds();
|
|
break;
|
|
case 16: /* fuito */
|
|
gen_vfp_uito(dp);
|
|
break;
|
|
case 17: /* fsito */
|
|
gen_vfp_sito(dp);
|
|
break;
|
|
case 24: /* ftoui */
|
|
gen_vfp_toui(dp);
|
|
break;
|
|
case 25: /* ftouiz */
|
|
gen_vfp_touiz(dp);
|
|
break;
|
|
case 26: /* ftosi */
|
|
gen_vfp_tosi(dp);
|
|
break;
|
|
case 27: /* ftosiz */
|
|
gen_vfp_tosiz(dp);
|
|
break;
|
|
default: /* undefined */
|
|
printf ("rn:%d\n", rn);
|
|
return 1;
|
|
}
|
|
break;
|
|
default: /* undefined */
|
|
printf ("op:%d\n", op);
|
|
return 1;
|
|
}
|
|
|
|
/* Write back the result. */
|
|
if (op == 15 && (rn >= 8 && rn <= 11))
|
|
; /* Comparison, do nothing. */
|
|
else if (op == 15 && rn > 17)
|
|
/* Integer result. */
|
|
gen_mov_vreg_F0(0, rd);
|
|
else if (op == 15 && rn == 15)
|
|
/* conversion */
|
|
gen_mov_vreg_F0(!dp, rd);
|
|
else
|
|
gen_mov_vreg_F0(dp, rd);
|
|
|
|
/* break out of the loop if we have finished */
|
|
if (veclen == 0)
|
|
break;
|
|
|
|
if (op == 15 && delta_m == 0) {
|
|
/* single source one-many */
|
|
while (veclen--) {
|
|
rd = ((rd + delta_d) & (bank_mask - 1))
|
|
| (rd & bank_mask);
|
|
gen_mov_vreg_F0(dp, rd);
|
|
}
|
|
break;
|
|
}
|
|
/* Setup the next operands. */
|
|
veclen--;
|
|
rd = ((rd + delta_d) & (bank_mask - 1))
|
|
| (rd & bank_mask);
|
|
|
|
if (op == 15) {
|
|
/* One source operand. */
|
|
rm = ((rm + delta_m) & (bank_mask - 1))
|
|
| (rm & bank_mask);
|
|
gen_mov_F0_vreg(dp, rm);
|
|
} else {
|
|
/* Two source operands. */
|
|
rn = ((rn + delta_d) & (bank_mask - 1))
|
|
| (rn & bank_mask);
|
|
gen_mov_F0_vreg(dp, rn);
|
|
if (delta_m) {
|
|
rm = ((rm + delta_m) & (bank_mask - 1))
|
|
| (rm & bank_mask);
|
|
gen_mov_F1_vreg(dp, rm);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case 0xc:
|
|
case 0xd:
|
|
if (dp && (insn & (1 << 22))) {
|
|
/* two-register transfer */
|
|
rn = (insn >> 16) & 0xf;
|
|
rd = (insn >> 12) & 0xf;
|
|
if (dp) {
|
|
if (insn & (1 << 5))
|
|
return 1;
|
|
rm = insn & 0xf;
|
|
} else
|
|
rm = ((insn << 1) & 0x1e) | ((insn >> 5) & 1);
|
|
|
|
if (insn & ARM_CP_RW_BIT) {
|
|
/* vfp->arm */
|
|
if (dp) {
|
|
gen_mov_F0_vreg(1, rm);
|
|
gen_op_vfp_mrrd();
|
|
gen_movl_reg_T0(s, rd);
|
|
gen_movl_reg_T1(s, rn);
|
|
} else {
|
|
gen_mov_F0_vreg(0, rm);
|
|
gen_op_vfp_mrs();
|
|
gen_movl_reg_T0(s, rn);
|
|
gen_mov_F0_vreg(0, rm + 1);
|
|
gen_op_vfp_mrs();
|
|
gen_movl_reg_T0(s, rd);
|
|
}
|
|
} else {
|
|
/* arm->vfp */
|
|
if (dp) {
|
|
gen_movl_T0_reg(s, rd);
|
|
gen_movl_T1_reg(s, rn);
|
|
gen_op_vfp_mdrr();
|
|
gen_mov_vreg_F0(1, rm);
|
|
} else {
|
|
gen_movl_T0_reg(s, rn);
|
|
gen_op_vfp_msr();
|
|
gen_mov_vreg_F0(0, rm);
|
|
gen_movl_T0_reg(s, rd);
|
|
gen_op_vfp_msr();
|
|
gen_mov_vreg_F0(0, rm + 1);
|
|
}
|
|
}
|
|
} else {
|
|
/* Load/store */
|
|
rn = (insn >> 16) & 0xf;
|
|
if (dp)
|
|
rd = (insn >> 12) & 0xf;
|
|
else
|
|
rd = ((insn >> 11) & 0x1e) | ((insn >> 22) & 1);
|
|
gen_movl_T1_reg(s, rn);
|
|
if ((insn & 0x01200000) == 0x01000000) {
|
|
/* Single load/store */
|
|
offset = (insn & 0xff) << 2;
|
|
if ((insn & (1 << 23)) == 0)
|
|
offset = -offset;
|
|
gen_op_addl_T1_im(offset);
|
|
if (insn & (1 << 20)) {
|
|
gen_vfp_ld(s, dp);
|
|
gen_mov_vreg_F0(dp, rd);
|
|
} else {
|
|
gen_mov_F0_vreg(dp, rd);
|
|
gen_vfp_st(s, dp);
|
|
}
|
|
} else {
|
|
/* load/store multiple */
|
|
if (dp)
|
|
n = (insn >> 1) & 0x7f;
|
|
else
|
|
n = insn & 0xff;
|
|
|
|
if (insn & (1 << 24)) /* pre-decrement */
|
|
gen_op_addl_T1_im(-((insn & 0xff) << 2));
|
|
|
|
if (dp)
|
|
offset = 8;
|
|
else
|
|
offset = 4;
|
|
for (i = 0; i < n; i++) {
|
|
if (insn & ARM_CP_RW_BIT) {
|
|
/* load */
|
|
gen_vfp_ld(s, dp);
|
|
gen_mov_vreg_F0(dp, rd + i);
|
|
} else {
|
|
/* store */
|
|
gen_mov_F0_vreg(dp, rd + i);
|
|
gen_vfp_st(s, dp);
|
|
}
|
|
gen_op_addl_T1_im(offset);
|
|
}
|
|
if (insn & (1 << 21)) {
|
|
/* writeback */
|
|
if (insn & (1 << 24))
|
|
offset = -offset * n;
|
|
else if (dp && (insn & 1))
|
|
offset = 4;
|
|
else
|
|
offset = 0;
|
|
|
|
if (offset != 0)
|
|
gen_op_addl_T1_im(offset);
|
|
gen_movl_reg_T1(s, rn);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
/* Should never happen. */
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static inline void gen_goto_tb(DisasContext *s, int n, uint32_t dest)
|
|
{
|
|
TranslationBlock *tb;
|
|
|
|
tb = s->tb;
|
|
if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK)) {
|
|
if (n == 0)
|
|
gen_op_goto_tb0(TBPARAM(tb));
|
|
else
|
|
gen_op_goto_tb1(TBPARAM(tb));
|
|
gen_op_movl_T0_im(dest);
|
|
gen_op_movl_r15_T0();
|
|
gen_op_movl_T0_im((long)tb + n);
|
|
gen_op_exit_tb();
|
|
} else {
|
|
gen_op_movl_T0_im(dest);
|
|
gen_op_movl_r15_T0();
|
|
gen_op_movl_T0_0();
|
|
gen_op_exit_tb();
|
|
}
|
|
}
|
|
|
|
static inline void gen_jmp (DisasContext *s, uint32_t dest)
|
|
{
|
|
if (__builtin_expect(s->singlestep_enabled, 0)) {
|
|
/* An indirect jump so that we still trigger the debug exception. */
|
|
if (s->thumb)
|
|
dest |= 1;
|
|
gen_op_movl_T0_im(dest);
|
|
gen_bx(s);
|
|
} else {
|
|
gen_goto_tb(s, 0, dest);
|
|
s->is_jmp = DISAS_TB_JUMP;
|
|
}
|
|
}
|
|
|
|
static inline void gen_mulxy(int x, int y)
|
|
{
|
|
if (x)
|
|
gen_op_sarl_T0_im(16);
|
|
else
|
|
gen_op_sxth_T0();
|
|
if (y)
|
|
gen_op_sarl_T1_im(16);
|
|
else
|
|
gen_op_sxth_T1();
|
|
gen_op_mul_T0_T1();
|
|
}
|
|
|
|
/* Return the mask of PSR bits set by a MSR instruction. */
|
|
static uint32_t msr_mask(DisasContext *s, int flags, int spsr) {
|
|
uint32_t mask;
|
|
|
|
mask = 0;
|
|
if (flags & (1 << 0))
|
|
mask |= 0xff;
|
|
if (flags & (1 << 1))
|
|
mask |= 0xff00;
|
|
if (flags & (1 << 2))
|
|
mask |= 0xff0000;
|
|
if (flags & (1 << 3))
|
|
mask |= 0xff000000;
|
|
/* Mask out undefined bits. */
|
|
mask &= 0xf90f03ff;
|
|
/* Mask out state bits. */
|
|
if (!spsr)
|
|
mask &= ~0x01000020;
|
|
/* Mask out privileged bits. */
|
|
if (IS_USER(s))
|
|
mask &= 0xf80f0200;
|
|
return mask;
|
|
}
|
|
|
|
/* Returns nonzero if access to the PSR is not permitted. */
|
|
static int gen_set_psr_T0(DisasContext *s, uint32_t mask, int spsr)
|
|
{
|
|
if (spsr) {
|
|
/* ??? This is also undefined in system mode. */
|
|
if (IS_USER(s))
|
|
return 1;
|
|
gen_op_movl_spsr_T0(mask);
|
|
} else {
|
|
gen_op_movl_cpsr_T0(mask);
|
|
}
|
|
gen_lookup_tb(s);
|
|
return 0;
|
|
}
|
|
|
|
static void gen_exception_return(DisasContext *s)
|
|
{
|
|
gen_op_movl_reg_TN[0][15]();
|
|
gen_op_movl_T0_spsr();
|
|
gen_op_movl_cpsr_T0(0xffffffff);
|
|
s->is_jmp = DISAS_UPDATE;
|
|
}
|
|
|
|
static void disas_arm_insn(CPUState * env, DisasContext *s)
|
|
{
|
|
unsigned int cond, insn, val, op1, i, shift, rm, rs, rn, rd, sh;
|
|
|
|
insn = ldl_code(s->pc);
|
|
s->pc += 4;
|
|
|
|
cond = insn >> 28;
|
|
if (cond == 0xf){
|
|
/* Unconditional instructions. */
|
|
if ((insn & 0x0d70f000) == 0x0550f000)
|
|
return; /* PLD */
|
|
else if ((insn & 0x0e000000) == 0x0a000000) {
|
|
/* branch link and change to thumb (blx <offset>) */
|
|
int32_t offset;
|
|
|
|
val = (uint32_t)s->pc;
|
|
gen_op_movl_T0_im(val);
|
|
gen_movl_reg_T0(s, 14);
|
|
/* Sign-extend the 24-bit offset */
|
|
offset = (((int32_t)insn) << 8) >> 8;
|
|
/* offset * 4 + bit24 * 2 + (thumb bit) */
|
|
val += (offset << 2) | ((insn >> 23) & 2) | 1;
|
|
/* pipeline offset */
|
|
val += 4;
|
|
gen_op_movl_T0_im(val);
|
|
gen_bx(s);
|
|
return;
|
|
} else if ((insn & 0x0e000f00) == 0x0c000100) {
|
|
if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
|
|
/* iWMMXt register transfer. */
|
|
if (env->cp15.c15_cpar & (1 << 1))
|
|
if (!disas_iwmmxt_insn(env, s, insn))
|
|
return;
|
|
}
|
|
} else if ((insn & 0x0fe00000) == 0x0c400000) {
|
|
/* Coprocessor double register transfer. */
|
|
} else if ((insn & 0x0f000010) == 0x0e000010) {
|
|
/* Additional coprocessor register transfer. */
|
|
} else if ((insn & 0x0ff10010) == 0x01000000) {
|
|
/* cps (privileged) */
|
|
} else if ((insn & 0x0ffffdff) == 0x01010000) {
|
|
/* setend */
|
|
if (insn & (1 << 9)) {
|
|
/* BE8 mode not implemented. */
|
|
goto illegal_op;
|
|
}
|
|
return;
|
|
}
|
|
goto illegal_op;
|
|
}
|
|
if (cond != 0xe) {
|
|
/* if not always execute, we generate a conditional jump to
|
|
next instruction */
|
|
s->condlabel = gen_new_label();
|
|
gen_test_cc[cond ^ 1](s->condlabel);
|
|
s->condjmp = 1;
|
|
//gen_test_cc[cond ^ 1]((long)s->tb, (long)s->pc);
|
|
//s->is_jmp = DISAS_JUMP_NEXT;
|
|
}
|
|
if ((insn & 0x0f900000) == 0x03000000) {
|
|
if ((insn & 0x0fb0f000) != 0x0320f000)
|
|
goto illegal_op;
|
|
/* CPSR = immediate */
|
|
val = insn & 0xff;
|
|
shift = ((insn >> 8) & 0xf) * 2;
|
|
if (shift)
|
|
val = (val >> shift) | (val << (32 - shift));
|
|
gen_op_movl_T0_im(val);
|
|
i = ((insn & (1 << 22)) != 0);
|
|
if (gen_set_psr_T0(s, msr_mask(s, (insn >> 16) & 0xf, i), i))
|
|
goto illegal_op;
|
|
} else if ((insn & 0x0f900000) == 0x01000000
|
|
&& (insn & 0x00000090) != 0x00000090) {
|
|
/* miscellaneous instructions */
|
|
op1 = (insn >> 21) & 3;
|
|
sh = (insn >> 4) & 0xf;
|
|
rm = insn & 0xf;
|
|
switch (sh) {
|
|
case 0x0: /* move program status register */
|
|
if (op1 & 1) {
|
|
/* PSR = reg */
|
|
gen_movl_T0_reg(s, rm);
|
|
i = ((op1 & 2) != 0);
|
|
if (gen_set_psr_T0(s, msr_mask(s, (insn >> 16) & 0xf, i), i))
|
|
goto illegal_op;
|
|
} else {
|
|
/* reg = PSR */
|
|
rd = (insn >> 12) & 0xf;
|
|
if (op1 & 2) {
|
|
if (IS_USER(s))
|
|
goto illegal_op;
|
|
gen_op_movl_T0_spsr();
|
|
} else {
|
|
gen_op_movl_T0_cpsr();
|
|
}
|
|
gen_movl_reg_T0(s, rd);
|
|
}
|
|
break;
|
|
case 0x1:
|
|
if (op1 == 1) {
|
|
/* branch/exchange thumb (bx). */
|
|
gen_movl_T0_reg(s, rm);
|
|
gen_bx(s);
|
|
} else if (op1 == 3) {
|
|
/* clz */
|
|
rd = (insn >> 12) & 0xf;
|
|
gen_movl_T0_reg(s, rm);
|
|
gen_op_clz_T0();
|
|
gen_movl_reg_T0(s, rd);
|
|
} else {
|
|
goto illegal_op;
|
|
}
|
|
break;
|
|
case 0x2:
|
|
if (op1 == 1) {
|
|
ARCH(5J); /* bxj */
|
|
/* Trivial implementation equivalent to bx. */
|
|
gen_movl_T0_reg(s, rm);
|
|
gen_bx(s);
|
|
} else {
|
|
goto illegal_op;
|
|
}
|
|
break;
|
|
case 0x3:
|
|
if (op1 != 1)
|
|
goto illegal_op;
|
|
|
|
/* branch link/exchange thumb (blx) */
|
|
val = (uint32_t)s->pc;
|
|
gen_op_movl_T1_im(val);
|
|
gen_movl_T0_reg(s, rm);
|
|
gen_movl_reg_T1(s, 14);
|
|
gen_bx(s);
|
|
break;
|
|
case 0x5: /* saturating add/subtract */
|
|
rd = (insn >> 12) & 0xf;
|
|
rn = (insn >> 16) & 0xf;
|
|
gen_movl_T0_reg(s, rm);
|
|
gen_movl_T1_reg(s, rn);
|
|
if (op1 & 2)
|
|
gen_op_double_T1_saturate();
|
|
if (op1 & 1)
|
|
gen_op_subl_T0_T1_saturate();
|
|
else
|
|
gen_op_addl_T0_T1_saturate();
|
|
gen_movl_reg_T0(s, rd);
|
|
break;
|
|
case 7: /* bkpt */
|
|
gen_op_movl_T0_im((long)s->pc - 4);
|
|
gen_op_movl_reg_TN[0][15]();
|
|
gen_op_bkpt();
|
|
s->is_jmp = DISAS_JUMP;
|
|
break;
|
|
case 0x8: /* signed multiply */
|
|
case 0xa:
|
|
case 0xc:
|
|
case 0xe:
|
|
rs = (insn >> 8) & 0xf;
|
|
rn = (insn >> 12) & 0xf;
|
|
rd = (insn >> 16) & 0xf;
|
|
if (op1 == 1) {
|
|
/* (32 * 16) >> 16 */
|
|
gen_movl_T0_reg(s, rm);
|
|
gen_movl_T1_reg(s, rs);
|
|
if (sh & 4)
|
|
gen_op_sarl_T1_im(16);
|
|
else
|
|
gen_op_sxth_T1();
|
|
gen_op_imulw_T0_T1();
|
|
if ((sh & 2) == 0) {
|
|
gen_movl_T1_reg(s, rn);
|
|
gen_op_addl_T0_T1_setq();
|
|
}
|
|
gen_movl_reg_T0(s, rd);
|
|
} else {
|
|
/* 16 * 16 */
|
|
gen_movl_T0_reg(s, rm);
|
|
gen_movl_T1_reg(s, rs);
|
|
gen_mulxy(sh & 2, sh & 4);
|
|
if (op1 == 2) {
|
|
gen_op_signbit_T1_T0();
|
|
gen_op_addq_T0_T1(rn, rd);
|
|
gen_movl_reg_T0(s, rn);
|
|
gen_movl_reg_T1(s, rd);
|
|
} else {
|
|
if (op1 == 0) {
|
|
gen_movl_T1_reg(s, rn);
|
|
gen_op_addl_T0_T1_setq();
|
|
}
|
|
gen_movl_reg_T0(s, rd);
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
goto illegal_op;
|
|
}
|
|
} else if (((insn & 0x0e000000) == 0 &&
|
|
(insn & 0x00000090) != 0x90) ||
|
|
((insn & 0x0e000000) == (1 << 25))) {
|
|
int set_cc, logic_cc, shiftop;
|
|
|
|
op1 = (insn >> 21) & 0xf;
|
|
set_cc = (insn >> 20) & 1;
|
|
logic_cc = table_logic_cc[op1] & set_cc;
|
|
|
|
/* data processing instruction */
|
|
if (insn & (1 << 25)) {
|
|
/* immediate operand */
|
|
val = insn & 0xff;
|
|
shift = ((insn >> 8) & 0xf) * 2;
|
|
if (shift)
|
|
val = (val >> shift) | (val << (32 - shift));
|
|
gen_op_movl_T1_im(val);
|
|
if (logic_cc && shift)
|
|
gen_op_mov_CF_T1();
|
|
} else {
|
|
/* register */
|
|
rm = (insn) & 0xf;
|
|
gen_movl_T1_reg(s, rm);
|
|
shiftop = (insn >> 5) & 3;
|
|
if (!(insn & (1 << 4))) {
|
|
shift = (insn >> 7) & 0x1f;
|
|
if (shift != 0) {
|
|
if (logic_cc) {
|
|
gen_shift_T1_im_cc[shiftop](shift);
|
|
} else {
|
|
gen_shift_T1_im[shiftop](shift);
|
|
}
|
|
} else if (shiftop != 0) {
|
|
if (logic_cc) {
|
|
gen_shift_T1_0_cc[shiftop]();
|
|
} else {
|
|
gen_shift_T1_0[shiftop]();
|
|
}
|
|
}
|
|
} else {
|
|
rs = (insn >> 8) & 0xf;
|
|
gen_movl_T0_reg(s, rs);
|
|
if (logic_cc) {
|
|
gen_shift_T1_T0_cc[shiftop]();
|
|
} else {
|
|
gen_shift_T1_T0[shiftop]();
|
|
}
|
|
}
|
|
}
|
|
if (op1 != 0x0f && op1 != 0x0d) {
|
|
rn = (insn >> 16) & 0xf;
|
|
gen_movl_T0_reg(s, rn);
|
|
}
|
|
rd = (insn >> 12) & 0xf;
|
|
switch(op1) {
|
|
case 0x00:
|
|
gen_op_andl_T0_T1();
|
|
gen_movl_reg_T0(s, rd);
|
|
if (logic_cc)
|
|
gen_op_logic_T0_cc();
|
|
break;
|
|
case 0x01:
|
|
gen_op_xorl_T0_T1();
|
|
gen_movl_reg_T0(s, rd);
|
|
if (logic_cc)
|
|
gen_op_logic_T0_cc();
|
|
break;
|
|
case 0x02:
|
|
if (set_cc && rd == 15) {
|
|
/* SUBS r15, ... is used for exception return. */
|
|
if (IS_USER(s))
|
|
goto illegal_op;
|
|
gen_op_subl_T0_T1_cc();
|
|
gen_exception_return(s);
|
|
} else {
|
|
if (set_cc)
|
|
gen_op_subl_T0_T1_cc();
|
|
else
|
|
gen_op_subl_T0_T1();
|
|
gen_movl_reg_T0(s, rd);
|
|
}
|
|
break;
|
|
case 0x03:
|
|
if (set_cc)
|
|
gen_op_rsbl_T0_T1_cc();
|
|
else
|
|
gen_op_rsbl_T0_T1();
|
|
gen_movl_reg_T0(s, rd);
|
|
break;
|
|
case 0x04:
|
|
if (set_cc)
|
|
gen_op_addl_T0_T1_cc();
|
|
else
|
|
gen_op_addl_T0_T1();
|
|
gen_movl_reg_T0(s, rd);
|
|
break;
|
|
case 0x05:
|
|
if (set_cc)
|
|
gen_op_adcl_T0_T1_cc();
|
|
else
|
|
gen_op_adcl_T0_T1();
|
|
gen_movl_reg_T0(s, rd);
|
|
break;
|
|
case 0x06:
|
|
if (set_cc)
|
|
gen_op_sbcl_T0_T1_cc();
|
|
else
|
|
gen_op_sbcl_T0_T1();
|
|
gen_movl_reg_T0(s, rd);
|
|
break;
|
|
case 0x07:
|
|
if (set_cc)
|
|
gen_op_rscl_T0_T1_cc();
|
|
else
|
|
gen_op_rscl_T0_T1();
|
|
gen_movl_reg_T0(s, rd);
|
|
break;
|
|
case 0x08:
|
|
if (set_cc) {
|
|
gen_op_andl_T0_T1();
|
|
gen_op_logic_T0_cc();
|
|
}
|
|
break;
|
|
case 0x09:
|
|
if (set_cc) {
|
|
gen_op_xorl_T0_T1();
|
|
gen_op_logic_T0_cc();
|
|
}
|
|
break;
|
|
case 0x0a:
|
|
if (set_cc) {
|
|
gen_op_subl_T0_T1_cc();
|
|
}
|
|
break;
|
|
case 0x0b:
|
|
if (set_cc) {
|
|
gen_op_addl_T0_T1_cc();
|
|
}
|
|
break;
|
|
case 0x0c:
|
|
gen_op_orl_T0_T1();
|
|
gen_movl_reg_T0(s, rd);
|
|
if (logic_cc)
|
|
gen_op_logic_T0_cc();
|
|
break;
|
|
case 0x0d:
|
|
if (logic_cc && rd == 15) {
|
|
/* MOVS r15, ... is used for exception return. */
|
|
if (IS_USER(s))
|
|
goto illegal_op;
|
|
gen_op_movl_T0_T1();
|
|
gen_exception_return(s);
|
|
} else {
|
|
gen_movl_reg_T1(s, rd);
|
|
if (logic_cc)
|
|
gen_op_logic_T1_cc();
|
|
}
|
|
break;
|
|
case 0x0e:
|
|
gen_op_bicl_T0_T1();
|
|
gen_movl_reg_T0(s, rd);
|
|
if (logic_cc)
|
|
gen_op_logic_T0_cc();
|
|
break;
|
|
default:
|
|
case 0x0f:
|
|
gen_op_notl_T1();
|
|
gen_movl_reg_T1(s, rd);
|
|
if (logic_cc)
|
|
gen_op_logic_T1_cc();
|
|
break;
|
|
}
|
|
} else {
|
|
/* other instructions */
|
|
op1 = (insn >> 24) & 0xf;
|
|
switch(op1) {
|
|
case 0x0:
|
|
case 0x1:
|
|
/* multiplies, extra load/stores */
|
|
sh = (insn >> 5) & 3;
|
|
if (sh == 0) {
|
|
if (op1 == 0x0) {
|
|
rd = (insn >> 16) & 0xf;
|
|
rn = (insn >> 12) & 0xf;
|
|
rs = (insn >> 8) & 0xf;
|
|
rm = (insn) & 0xf;
|
|
if (((insn >> 22) & 3) == 0) {
|
|
/* 32 bit mul */
|
|
gen_movl_T0_reg(s, rs);
|
|
gen_movl_T1_reg(s, rm);
|
|
gen_op_mul_T0_T1();
|
|
if (insn & (1 << 21)) {
|
|
gen_movl_T1_reg(s, rn);
|
|
gen_op_addl_T0_T1();
|
|
}
|
|
if (insn & (1 << 20))
|
|
gen_op_logic_T0_cc();
|
|
gen_movl_reg_T0(s, rd);
|
|
} else {
|
|
/* 64 bit mul */
|
|
gen_movl_T0_reg(s, rs);
|
|
gen_movl_T1_reg(s, rm);
|
|
if (insn & (1 << 22))
|
|
gen_op_imull_T0_T1();
|
|
else
|
|
gen_op_mull_T0_T1();
|
|
if (insn & (1 << 21)) /* mult accumulate */
|
|
gen_op_addq_T0_T1(rn, rd);
|
|
if (!(insn & (1 << 23))) { /* double accumulate */
|
|
ARCH(6);
|
|
gen_op_addq_lo_T0_T1(rn);
|
|
gen_op_addq_lo_T0_T1(rd);
|
|
}
|
|
if (insn & (1 << 20))
|
|
gen_op_logicq_cc();
|
|
gen_movl_reg_T0(s, rn);
|
|
gen_movl_reg_T1(s, rd);
|
|
}
|
|
} else {
|
|
rn = (insn >> 16) & 0xf;
|
|
rd = (insn >> 12) & 0xf;
|
|
if (insn & (1 << 23)) {
|
|
/* load/store exclusive */
|
|
goto illegal_op;
|
|
} else {
|
|
/* SWP instruction */
|
|
rm = (insn) & 0xf;
|
|
|
|
gen_movl_T0_reg(s, rm);
|
|
gen_movl_T1_reg(s, rn);
|
|
if (insn & (1 << 22)) {
|
|
gen_ldst(swpb, s);
|
|
} else {
|
|
gen_ldst(swpl, s);
|
|
}
|
|
gen_movl_reg_T0(s, rd);
|
|
}
|
|
}
|
|
} else {
|
|
int address_offset;
|
|
int load;
|
|
/* Misc load/store */
|
|
rn = (insn >> 16) & 0xf;
|
|
rd = (insn >> 12) & 0xf;
|
|
gen_movl_T1_reg(s, rn);
|
|
if (insn & (1 << 24))
|
|
gen_add_datah_offset(s, insn, 0);
|
|
address_offset = 0;
|
|
if (insn & (1 << 20)) {
|
|
/* load */
|
|
switch(sh) {
|
|
case 1:
|
|
gen_ldst(lduw, s);
|
|
break;
|
|
case 2:
|
|
gen_ldst(ldsb, s);
|
|
break;
|
|
default:
|
|
case 3:
|
|
gen_ldst(ldsw, s);
|
|
break;
|
|
}
|
|
load = 1;
|
|
} else if (sh & 2) {
|
|
/* doubleword */
|
|
if (sh & 1) {
|
|
/* store */
|
|
gen_movl_T0_reg(s, rd);
|
|
gen_ldst(stl, s);
|
|
gen_op_addl_T1_im(4);
|
|
gen_movl_T0_reg(s, rd + 1);
|
|
gen_ldst(stl, s);
|
|
load = 0;
|
|
} else {
|
|
/* load */
|
|
gen_ldst(ldl, s);
|
|
gen_movl_reg_T0(s, rd);
|
|
gen_op_addl_T1_im(4);
|
|
gen_ldst(ldl, s);
|
|
rd++;
|
|
load = 1;
|
|
}
|
|
address_offset = -4;
|
|
} else {
|
|
/* store */
|
|
gen_movl_T0_reg(s, rd);
|
|
gen_ldst(stw, s);
|
|
load = 0;
|
|
}
|
|
/* Perform base writeback before the loaded value to
|
|
ensure correct behavior with overlapping index registers.
|
|
ldrd with base writeback is is undefined if the
|
|
destination and index registers overlap. */
|
|
if (!(insn & (1 << 24))) {
|
|
gen_add_datah_offset(s, insn, address_offset);
|
|
gen_movl_reg_T1(s, rn);
|
|
} else if (insn & (1 << 21)) {
|
|
if (address_offset)
|
|
gen_op_addl_T1_im(address_offset);
|
|
gen_movl_reg_T1(s, rn);
|
|
}
|
|
if (load) {
|
|
/* Complete the load. */
|
|
gen_movl_reg_T0(s, rd);
|
|
}
|
|
}
|
|
break;
|
|
case 0x4:
|
|
case 0x5:
|
|
case 0x6:
|
|
case 0x7:
|
|
/* Check for undefined extension instructions
|
|
* per the ARM Bible IE:
|
|
* xxxx 0111 1111 xxxx xxxx xxxx 1111 xxxx
|
|
*/
|
|
sh = (0xf << 20) | (0xf << 4);
|
|
if (op1 == 0x7 && ((insn & sh) == sh))
|
|
{
|
|
goto illegal_op;
|
|
}
|
|
/* load/store byte/word */
|
|
rn = (insn >> 16) & 0xf;
|
|
rd = (insn >> 12) & 0xf;
|
|
gen_movl_T1_reg(s, rn);
|
|
i = (IS_USER(s) || (insn & 0x01200000) == 0x00200000);
|
|
if (insn & (1 << 24))
|
|
gen_add_data_offset(s, insn);
|
|
if (insn & (1 << 20)) {
|
|
/* load */
|
|
s->is_mem = 1;
|
|
#if defined(CONFIG_USER_ONLY)
|
|
if (insn & (1 << 22))
|
|
gen_op_ldub_raw();
|
|
else
|
|
gen_op_ldl_raw();
|
|
#else
|
|
if (insn & (1 << 22)) {
|
|
if (i)
|
|
gen_op_ldub_user();
|
|
else
|
|
gen_op_ldub_kernel();
|
|
} else {
|
|
if (i)
|
|
gen_op_ldl_user();
|
|
else
|
|
gen_op_ldl_kernel();
|
|
}
|
|
#endif
|
|
} else {
|
|
/* store */
|
|
gen_movl_T0_reg(s, rd);
|
|
#if defined(CONFIG_USER_ONLY)
|
|
if (insn & (1 << 22))
|
|
gen_op_stb_raw();
|
|
else
|
|
gen_op_stl_raw();
|
|
#else
|
|
if (insn & (1 << 22)) {
|
|
if (i)
|
|
gen_op_stb_user();
|
|
else
|
|
gen_op_stb_kernel();
|
|
} else {
|
|
if (i)
|
|
gen_op_stl_user();
|
|
else
|
|
gen_op_stl_kernel();
|
|
}
|
|
#endif
|
|
}
|
|
if (!(insn & (1 << 24))) {
|
|
gen_add_data_offset(s, insn);
|
|
gen_movl_reg_T1(s, rn);
|
|
} else if (insn & (1 << 21))
|
|
gen_movl_reg_T1(s, rn); {
|
|
}
|
|
if (insn & (1 << 20)) {
|
|
/* Complete the load. */
|
|
if (rd == 15)
|
|
gen_bx(s);
|
|
else
|
|
gen_movl_reg_T0(s, rd);
|
|
}
|
|
break;
|
|
case 0x08:
|
|
case 0x09:
|
|
{
|
|
int j, n, user, loaded_base;
|
|
/* load/store multiple words */
|
|
/* XXX: store correct base if write back */
|
|
user = 0;
|
|
if (insn & (1 << 22)) {
|
|
if (IS_USER(s))
|
|
goto illegal_op; /* only usable in supervisor mode */
|
|
|
|
if ((insn & (1 << 15)) == 0)
|
|
user = 1;
|
|
}
|
|
rn = (insn >> 16) & 0xf;
|
|
gen_movl_T1_reg(s, rn);
|
|
|
|
/* compute total size */
|
|
loaded_base = 0;
|
|
n = 0;
|
|
for(i=0;i<16;i++) {
|
|
if (insn & (1 << i))
|
|
n++;
|
|
}
|
|
/* XXX: test invalid n == 0 case ? */
|
|
if (insn & (1 << 23)) {
|
|
if (insn & (1 << 24)) {
|
|
/* pre increment */
|
|
gen_op_addl_T1_im(4);
|
|
} else {
|
|
/* post increment */
|
|
}
|
|
} else {
|
|
if (insn & (1 << 24)) {
|
|
/* pre decrement */
|
|
gen_op_addl_T1_im(-(n * 4));
|
|
} else {
|
|
/* post decrement */
|
|
if (n != 1)
|
|
gen_op_addl_T1_im(-((n - 1) * 4));
|
|
}
|
|
}
|
|
j = 0;
|
|
for(i=0;i<16;i++) {
|
|
if (insn & (1 << i)) {
|
|
if (insn & (1 << 20)) {
|
|
/* load */
|
|
gen_ldst(ldl, s);
|
|
if (i == 15) {
|
|
gen_bx(s);
|
|
} else if (user) {
|
|
gen_op_movl_user_T0(i);
|
|
} else if (i == rn) {
|
|
gen_op_movl_T2_T0();
|
|
loaded_base = 1;
|
|
} else {
|
|
gen_movl_reg_T0(s, i);
|
|
}
|
|
} else {
|
|
/* store */
|
|
if (i == 15) {
|
|
/* special case: r15 = PC + 8 */
|
|
val = (long)s->pc + 4;
|
|
gen_op_movl_TN_im[0](val);
|
|
} else if (user) {
|
|
gen_op_movl_T0_user(i);
|
|
} else {
|
|
gen_movl_T0_reg(s, i);
|
|
}
|
|
gen_ldst(stl, s);
|
|
}
|
|
j++;
|
|
/* no need to add after the last transfer */
|
|
if (j != n)
|
|
gen_op_addl_T1_im(4);
|
|
}
|
|
}
|
|
if (insn & (1 << 21)) {
|
|
/* write back */
|
|
if (insn & (1 << 23)) {
|
|
if (insn & (1 << 24)) {
|
|
/* pre increment */
|
|
} else {
|
|
/* post increment */
|
|
gen_op_addl_T1_im(4);
|
|
}
|
|
} else {
|
|
if (insn & (1 << 24)) {
|
|
/* pre decrement */
|
|
if (n != 1)
|
|
gen_op_addl_T1_im(-((n - 1) * 4));
|
|
} else {
|
|
/* post decrement */
|
|
gen_op_addl_T1_im(-(n * 4));
|
|
}
|
|
}
|
|
gen_movl_reg_T1(s, rn);
|
|
}
|
|
if (loaded_base) {
|
|
gen_op_movl_T0_T2();
|
|
gen_movl_reg_T0(s, rn);
|
|
}
|
|
if ((insn & (1 << 22)) && !user) {
|
|
/* Restore CPSR from SPSR. */
|
|
gen_op_movl_T0_spsr();
|
|
gen_op_movl_cpsr_T0(0xffffffff);
|
|
s->is_jmp = DISAS_UPDATE;
|
|
}
|
|
}
|
|
break;
|
|
case 0xa:
|
|
case 0xb:
|
|
{
|
|
int32_t offset;
|
|
|
|
/* branch (and link) */
|
|
val = (int32_t)s->pc;
|
|
if (insn & (1 << 24)) {
|
|
gen_op_movl_T0_im(val);
|
|
gen_op_movl_reg_TN[0][14]();
|
|
}
|
|
offset = (((int32_t)insn << 8) >> 8);
|
|
val += (offset << 2) + 4;
|
|
gen_jmp(s, val);
|
|
}
|
|
break;
|
|
case 0xc:
|
|
case 0xd:
|
|
case 0xe:
|
|
/* Coprocessor. */
|
|
op1 = (insn >> 8) & 0xf;
|
|
if (arm_feature(env, ARM_FEATURE_XSCALE) &&
|
|
((env->cp15.c15_cpar ^ 0x3fff) & (1 << op1)))
|
|
goto illegal_op;
|
|
switch (op1) {
|
|
case 0 ... 1:
|
|
if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
|
|
if (disas_iwmmxt_insn(env, s, insn))
|
|
goto illegal_op;
|
|
} else if (arm_feature(env, ARM_FEATURE_XSCALE)) {
|
|
if (disas_dsp_insn(env, s, insn))
|
|
goto illegal_op;
|
|
} else
|
|
goto illegal_op;
|
|
break;
|
|
case 2 ... 9:
|
|
case 12 ... 14:
|
|
if (disas_cp_insn (env, s, insn))
|
|
goto illegal_op;
|
|
break;
|
|
case 10:
|
|
case 11:
|
|
if (disas_vfp_insn (env, s, insn))
|
|
goto illegal_op;
|
|
break;
|
|
case 15:
|
|
if (disas_cp15_insn (env, s, insn))
|
|
goto illegal_op;
|
|
break;
|
|
default:
|
|
/* unknown coprocessor. */
|
|
goto illegal_op;
|
|
}
|
|
break;
|
|
case 0xf:
|
|
/* swi */
|
|
gen_op_movl_T0_im((long)s->pc);
|
|
gen_op_movl_reg_TN[0][15]();
|
|
gen_op_swi();
|
|
s->is_jmp = DISAS_JUMP;
|
|
break;
|
|
default:
|
|
illegal_op:
|
|
gen_op_movl_T0_im((long)s->pc - 4);
|
|
gen_op_movl_reg_TN[0][15]();
|
|
gen_op_undef_insn();
|
|
s->is_jmp = DISAS_JUMP;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void disas_thumb_insn(DisasContext *s)
|
|
{
|
|
uint32_t val, insn, op, rm, rn, rd, shift, cond;
|
|
int32_t offset;
|
|
int i;
|
|
|
|
insn = lduw_code(s->pc);
|
|
s->pc += 2;
|
|
|
|
switch (insn >> 12) {
|
|
case 0: case 1:
|
|
rd = insn & 7;
|
|
op = (insn >> 11) & 3;
|
|
if (op == 3) {
|
|
/* add/subtract */
|
|
rn = (insn >> 3) & 7;
|
|
gen_movl_T0_reg(s, rn);
|
|
if (insn & (1 << 10)) {
|
|
/* immediate */
|
|
gen_op_movl_T1_im((insn >> 6) & 7);
|
|
} else {
|
|
/* reg */
|
|
rm = (insn >> 6) & 7;
|
|
gen_movl_T1_reg(s, rm);
|
|
}
|
|
if (insn & (1 << 9))
|
|
gen_op_subl_T0_T1_cc();
|
|
else
|
|
gen_op_addl_T0_T1_cc();
|
|
gen_movl_reg_T0(s, rd);
|
|
} else {
|
|
/* shift immediate */
|
|
rm = (insn >> 3) & 7;
|
|
shift = (insn >> 6) & 0x1f;
|
|
gen_movl_T0_reg(s, rm);
|
|
gen_shift_T0_im_thumb[op](shift);
|
|
gen_movl_reg_T0(s, rd);
|
|
}
|
|
break;
|
|
case 2: case 3:
|
|
/* arithmetic large immediate */
|
|
op = (insn >> 11) & 3;
|
|
rd = (insn >> 8) & 0x7;
|
|
if (op == 0) {
|
|
gen_op_movl_T0_im(insn & 0xff);
|
|
} else {
|
|
gen_movl_T0_reg(s, rd);
|
|
gen_op_movl_T1_im(insn & 0xff);
|
|
}
|
|
switch (op) {
|
|
case 0: /* mov */
|
|
gen_op_logic_T0_cc();
|
|
break;
|
|
case 1: /* cmp */
|
|
gen_op_subl_T0_T1_cc();
|
|
break;
|
|
case 2: /* add */
|
|
gen_op_addl_T0_T1_cc();
|
|
break;
|
|
case 3: /* sub */
|
|
gen_op_subl_T0_T1_cc();
|
|
break;
|
|
}
|
|
if (op != 1)
|
|
gen_movl_reg_T0(s, rd);
|
|
break;
|
|
case 4:
|
|
if (insn & (1 << 11)) {
|
|
rd = (insn >> 8) & 7;
|
|
/* load pc-relative. Bit 1 of PC is ignored. */
|
|
val = s->pc + 2 + ((insn & 0xff) * 4);
|
|
val &= ~(uint32_t)2;
|
|
gen_op_movl_T1_im(val);
|
|
gen_ldst(ldl, s);
|
|
gen_movl_reg_T0(s, rd);
|
|
break;
|
|
}
|
|
if (insn & (1 << 10)) {
|
|
/* data processing extended or blx */
|
|
rd = (insn & 7) | ((insn >> 4) & 8);
|
|
rm = (insn >> 3) & 0xf;
|
|
op = (insn >> 8) & 3;
|
|
switch (op) {
|
|
case 0: /* add */
|
|
gen_movl_T0_reg(s, rd);
|
|
gen_movl_T1_reg(s, rm);
|
|
gen_op_addl_T0_T1();
|
|
gen_movl_reg_T0(s, rd);
|
|
break;
|
|
case 1: /* cmp */
|
|
gen_movl_T0_reg(s, rd);
|
|
gen_movl_T1_reg(s, rm);
|
|
gen_op_subl_T0_T1_cc();
|
|
break;
|
|
case 2: /* mov/cpy */
|
|
gen_movl_T0_reg(s, rm);
|
|
gen_movl_reg_T0(s, rd);
|
|
break;
|
|
case 3:/* branch [and link] exchange thumb register */
|
|
if (insn & (1 << 7)) {
|
|
val = (uint32_t)s->pc | 1;
|
|
gen_op_movl_T1_im(val);
|
|
gen_movl_reg_T1(s, 14);
|
|
}
|
|
gen_movl_T0_reg(s, rm);
|
|
gen_bx(s);
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* data processing register */
|
|
rd = insn & 7;
|
|
rm = (insn >> 3) & 7;
|
|
op = (insn >> 6) & 0xf;
|
|
if (op == 2 || op == 3 || op == 4 || op == 7) {
|
|
/* the shift/rotate ops want the operands backwards */
|
|
val = rm;
|
|
rm = rd;
|
|
rd = val;
|
|
val = 1;
|
|
} else {
|
|
val = 0;
|
|
}
|
|
|
|
if (op == 9) /* neg */
|
|
gen_op_movl_T0_im(0);
|
|
else if (op != 0xf) /* mvn doesn't read its first operand */
|
|
gen_movl_T0_reg(s, rd);
|
|
|
|
gen_movl_T1_reg(s, rm);
|
|
switch (op) {
|
|
case 0x0: /* and */
|
|
gen_op_andl_T0_T1();
|
|
gen_op_logic_T0_cc();
|
|
break;
|
|
case 0x1: /* eor */
|
|
gen_op_xorl_T0_T1();
|
|
gen_op_logic_T0_cc();
|
|
break;
|
|
case 0x2: /* lsl */
|
|
gen_op_shll_T1_T0_cc();
|
|
gen_op_logic_T1_cc();
|
|
break;
|
|
case 0x3: /* lsr */
|
|
gen_op_shrl_T1_T0_cc();
|
|
gen_op_logic_T1_cc();
|
|
break;
|
|
case 0x4: /* asr */
|
|
gen_op_sarl_T1_T0_cc();
|
|
gen_op_logic_T1_cc();
|
|
break;
|
|
case 0x5: /* adc */
|
|
gen_op_adcl_T0_T1_cc();
|
|
break;
|
|
case 0x6: /* sbc */
|
|
gen_op_sbcl_T0_T1_cc();
|
|
break;
|
|
case 0x7: /* ror */
|
|
gen_op_rorl_T1_T0_cc();
|
|
gen_op_logic_T1_cc();
|
|
break;
|
|
case 0x8: /* tst */
|
|
gen_op_andl_T0_T1();
|
|
gen_op_logic_T0_cc();
|
|
rd = 16;
|
|
break;
|
|
case 0x9: /* neg */
|
|
gen_op_subl_T0_T1_cc();
|
|
break;
|
|
case 0xa: /* cmp */
|
|
gen_op_subl_T0_T1_cc();
|
|
rd = 16;
|
|
break;
|
|
case 0xb: /* cmn */
|
|
gen_op_addl_T0_T1_cc();
|
|
rd = 16;
|
|
break;
|
|
case 0xc: /* orr */
|
|
gen_op_orl_T0_T1();
|
|
gen_op_logic_T0_cc();
|
|
break;
|
|
case 0xd: /* mul */
|
|
gen_op_mull_T0_T1();
|
|
gen_op_logic_T0_cc();
|
|
break;
|
|
case 0xe: /* bic */
|
|
gen_op_bicl_T0_T1();
|
|
gen_op_logic_T0_cc();
|
|
break;
|
|
case 0xf: /* mvn */
|
|
gen_op_notl_T1();
|
|
gen_op_logic_T1_cc();
|
|
val = 1;
|
|
rm = rd;
|
|
break;
|
|
}
|
|
if (rd != 16) {
|
|
if (val)
|
|
gen_movl_reg_T1(s, rm);
|
|
else
|
|
gen_movl_reg_T0(s, rd);
|
|
}
|
|
break;
|
|
|
|
case 5:
|
|
/* load/store register offset. */
|
|
rd = insn & 7;
|
|
rn = (insn >> 3) & 7;
|
|
rm = (insn >> 6) & 7;
|
|
op = (insn >> 9) & 7;
|
|
gen_movl_T1_reg(s, rn);
|
|
gen_movl_T2_reg(s, rm);
|
|
gen_op_addl_T1_T2();
|
|
|
|
if (op < 3) /* store */
|
|
gen_movl_T0_reg(s, rd);
|
|
|
|
switch (op) {
|
|
case 0: /* str */
|
|
gen_ldst(stl, s);
|
|
break;
|
|
case 1: /* strh */
|
|
gen_ldst(stw, s);
|
|
break;
|
|
case 2: /* strb */
|
|
gen_ldst(stb, s);
|
|
break;
|
|
case 3: /* ldrsb */
|
|
gen_ldst(ldsb, s);
|
|
break;
|
|
case 4: /* ldr */
|
|
gen_ldst(ldl, s);
|
|
break;
|
|
case 5: /* ldrh */
|
|
gen_ldst(lduw, s);
|
|
break;
|
|
case 6: /* ldrb */
|
|
gen_ldst(ldub, s);
|
|
break;
|
|
case 7: /* ldrsh */
|
|
gen_ldst(ldsw, s);
|
|
break;
|
|
}
|
|
if (op >= 3) /* load */
|
|
gen_movl_reg_T0(s, rd);
|
|
break;
|
|
|
|
case 6:
|
|
/* load/store word immediate offset */
|
|
rd = insn & 7;
|
|
rn = (insn >> 3) & 7;
|
|
gen_movl_T1_reg(s, rn);
|
|
val = (insn >> 4) & 0x7c;
|
|
gen_op_movl_T2_im(val);
|
|
gen_op_addl_T1_T2();
|
|
|
|
if (insn & (1 << 11)) {
|
|
/* load */
|
|
gen_ldst(ldl, s);
|
|
gen_movl_reg_T0(s, rd);
|
|
} else {
|
|
/* store */
|
|
gen_movl_T0_reg(s, rd);
|
|
gen_ldst(stl, s);
|
|
}
|
|
break;
|
|
|
|
case 7:
|
|
/* load/store byte immediate offset */
|
|
rd = insn & 7;
|
|
rn = (insn >> 3) & 7;
|
|
gen_movl_T1_reg(s, rn);
|
|
val = (insn >> 6) & 0x1f;
|
|
gen_op_movl_T2_im(val);
|
|
gen_op_addl_T1_T2();
|
|
|
|
if (insn & (1 << 11)) {
|
|
/* load */
|
|
gen_ldst(ldub, s);
|
|
gen_movl_reg_T0(s, rd);
|
|
} else {
|
|
/* store */
|
|
gen_movl_T0_reg(s, rd);
|
|
gen_ldst(stb, s);
|
|
}
|
|
break;
|
|
|
|
case 8:
|
|
/* load/store halfword immediate offset */
|
|
rd = insn & 7;
|
|
rn = (insn >> 3) & 7;
|
|
gen_movl_T1_reg(s, rn);
|
|
val = (insn >> 5) & 0x3e;
|
|
gen_op_movl_T2_im(val);
|
|
gen_op_addl_T1_T2();
|
|
|
|
if (insn & (1 << 11)) {
|
|
/* load */
|
|
gen_ldst(lduw, s);
|
|
gen_movl_reg_T0(s, rd);
|
|
} else {
|
|
/* store */
|
|
gen_movl_T0_reg(s, rd);
|
|
gen_ldst(stw, s);
|
|
}
|
|
break;
|
|
|
|
case 9:
|
|
/* load/store from stack */
|
|
rd = (insn >> 8) & 7;
|
|
gen_movl_T1_reg(s, 13);
|
|
val = (insn & 0xff) * 4;
|
|
gen_op_movl_T2_im(val);
|
|
gen_op_addl_T1_T2();
|
|
|
|
if (insn & (1 << 11)) {
|
|
/* load */
|
|
gen_ldst(ldl, s);
|
|
gen_movl_reg_T0(s, rd);
|
|
} else {
|
|
/* store */
|
|
gen_movl_T0_reg(s, rd);
|
|
gen_ldst(stl, s);
|
|
}
|
|
break;
|
|
|
|
case 10:
|
|
/* add to high reg */
|
|
rd = (insn >> 8) & 7;
|
|
if (insn & (1 << 11)) {
|
|
/* SP */
|
|
gen_movl_T0_reg(s, 13);
|
|
} else {
|
|
/* PC. bit 1 is ignored. */
|
|
gen_op_movl_T0_im((s->pc + 2) & ~(uint32_t)2);
|
|
}
|
|
val = (insn & 0xff) * 4;
|
|
gen_op_movl_T1_im(val);
|
|
gen_op_addl_T0_T1();
|
|
gen_movl_reg_T0(s, rd);
|
|
break;
|
|
|
|
case 11:
|
|
/* misc */
|
|
op = (insn >> 8) & 0xf;
|
|
switch (op) {
|
|
case 0:
|
|
/* adjust stack pointer */
|
|
gen_movl_T1_reg(s, 13);
|
|
val = (insn & 0x7f) * 4;
|
|
if (insn & (1 << 7))
|
|
val = -(int32_t)val;
|
|
gen_op_movl_T2_im(val);
|
|
gen_op_addl_T1_T2();
|
|
gen_movl_reg_T1(s, 13);
|
|
break;
|
|
|
|
case 4: case 5: case 0xc: case 0xd:
|
|
/* push/pop */
|
|
gen_movl_T1_reg(s, 13);
|
|
if (insn & (1 << 8))
|
|
offset = 4;
|
|
else
|
|
offset = 0;
|
|
for (i = 0; i < 8; i++) {
|
|
if (insn & (1 << i))
|
|
offset += 4;
|
|
}
|
|
if ((insn & (1 << 11)) == 0) {
|
|
gen_op_movl_T2_im(-offset);
|
|
gen_op_addl_T1_T2();
|
|
}
|
|
gen_op_movl_T2_im(4);
|
|
for (i = 0; i < 8; i++) {
|
|
if (insn & (1 << i)) {
|
|
if (insn & (1 << 11)) {
|
|
/* pop */
|
|
gen_ldst(ldl, s);
|
|
gen_movl_reg_T0(s, i);
|
|
} else {
|
|
/* push */
|
|
gen_movl_T0_reg(s, i);
|
|
gen_ldst(stl, s);
|
|
}
|
|
/* advance to the next address. */
|
|
gen_op_addl_T1_T2();
|
|
}
|
|
}
|
|
if (insn & (1 << 8)) {
|
|
if (insn & (1 << 11)) {
|
|
/* pop pc */
|
|
gen_ldst(ldl, s);
|
|
/* don't set the pc until the rest of the instruction
|
|
has completed */
|
|
} else {
|
|
/* push lr */
|
|
gen_movl_T0_reg(s, 14);
|
|
gen_ldst(stl, s);
|
|
}
|
|
gen_op_addl_T1_T2();
|
|
}
|
|
if ((insn & (1 << 11)) == 0) {
|
|
gen_op_movl_T2_im(-offset);
|
|
gen_op_addl_T1_T2();
|
|
}
|
|
/* write back the new stack pointer */
|
|
gen_movl_reg_T1(s, 13);
|
|
/* set the new PC value */
|
|
if ((insn & 0x0900) == 0x0900)
|
|
gen_bx(s);
|
|
break;
|
|
|
|
case 0xe: /* bkpt */
|
|
gen_op_movl_T0_im((long)s->pc - 2);
|
|
gen_op_movl_reg_TN[0][15]();
|
|
gen_op_bkpt();
|
|
s->is_jmp = DISAS_JUMP;
|
|
break;
|
|
|
|
default:
|
|
goto undef;
|
|
}
|
|
break;
|
|
|
|
case 12:
|
|
/* load/store multiple */
|
|
rn = (insn >> 8) & 0x7;
|
|
gen_movl_T1_reg(s, rn);
|
|
gen_op_movl_T2_im(4);
|
|
for (i = 0; i < 8; i++) {
|
|
if (insn & (1 << i)) {
|
|
if (insn & (1 << 11)) {
|
|
/* load */
|
|
gen_ldst(ldl, s);
|
|
gen_movl_reg_T0(s, i);
|
|
} else {
|
|
/* store */
|
|
gen_movl_T0_reg(s, i);
|
|
gen_ldst(stl, s);
|
|
}
|
|
/* advance to the next address */
|
|
gen_op_addl_T1_T2();
|
|
}
|
|
}
|
|
/* Base register writeback. */
|
|
if ((insn & (1 << rn)) == 0)
|
|
gen_movl_reg_T1(s, rn);
|
|
break;
|
|
|
|
case 13:
|
|
/* conditional branch or swi */
|
|
cond = (insn >> 8) & 0xf;
|
|
if (cond == 0xe)
|
|
goto undef;
|
|
|
|
if (cond == 0xf) {
|
|
/* swi */
|
|
gen_op_movl_T0_im((long)s->pc | 1);
|
|
/* Don't set r15. */
|
|
gen_op_movl_reg_TN[0][15]();
|
|
gen_op_swi();
|
|
s->is_jmp = DISAS_JUMP;
|
|
break;
|
|
}
|
|
/* generate a conditional jump to next instruction */
|
|
s->condlabel = gen_new_label();
|
|
gen_test_cc[cond ^ 1](s->condlabel);
|
|
s->condjmp = 1;
|
|
//gen_test_cc[cond ^ 1]((long)s->tb, (long)s->pc);
|
|
//s->is_jmp = DISAS_JUMP_NEXT;
|
|
gen_movl_T1_reg(s, 15);
|
|
|
|
/* jump to the offset */
|
|
val = (uint32_t)s->pc + 2;
|
|
offset = ((int32_t)insn << 24) >> 24;
|
|
val += offset << 1;
|
|
gen_jmp(s, val);
|
|
break;
|
|
|
|
case 14:
|
|
/* unconditional branch */
|
|
if (insn & (1 << 11)) {
|
|
/* Second half of blx. */
|
|
offset = ((insn & 0x7ff) << 1);
|
|
gen_movl_T0_reg(s, 14);
|
|
gen_op_movl_T1_im(offset);
|
|
gen_op_addl_T0_T1();
|
|
gen_op_movl_T1_im(0xfffffffc);
|
|
gen_op_andl_T0_T1();
|
|
|
|
val = (uint32_t)s->pc;
|
|
gen_op_movl_T1_im(val | 1);
|
|
gen_movl_reg_T1(s, 14);
|
|
gen_bx(s);
|
|
break;
|
|
}
|
|
val = (uint32_t)s->pc;
|
|
offset = ((int32_t)insn << 21) >> 21;
|
|
val += (offset << 1) + 2;
|
|
gen_jmp(s, val);
|
|
break;
|
|
|
|
case 15:
|
|
/* branch and link [and switch to arm] */
|
|
if ((s->pc & ~TARGET_PAGE_MASK) == 0) {
|
|
/* Instruction spans a page boundary. Implement it as two
|
|
16-bit instructions in case the second half causes an
|
|
prefetch abort. */
|
|
offset = ((int32_t)insn << 21) >> 9;
|
|
val = s->pc + 2 + offset;
|
|
gen_op_movl_T0_im(val);
|
|
gen_movl_reg_T0(s, 14);
|
|
break;
|
|
}
|
|
if (insn & (1 << 11)) {
|
|
/* Second half of bl. */
|
|
offset = ((insn & 0x7ff) << 1) | 1;
|
|
gen_movl_T0_reg(s, 14);
|
|
gen_op_movl_T1_im(offset);
|
|
gen_op_addl_T0_T1();
|
|
|
|
val = (uint32_t)s->pc;
|
|
gen_op_movl_T1_im(val | 1);
|
|
gen_movl_reg_T1(s, 14);
|
|
gen_bx(s);
|
|
break;
|
|
}
|
|
offset = ((int32_t)insn << 21) >> 10;
|
|
insn = lduw_code(s->pc);
|
|
offset |= insn & 0x7ff;
|
|
|
|
val = (uint32_t)s->pc + 2;
|
|
gen_op_movl_T1_im(val | 1);
|
|
gen_movl_reg_T1(s, 14);
|
|
|
|
val += offset << 1;
|
|
if (insn & (1 << 12)) {
|
|
/* bl */
|
|
gen_jmp(s, val);
|
|
} else {
|
|
/* blx */
|
|
val &= ~(uint32_t)2;
|
|
gen_op_movl_T0_im(val);
|
|
gen_bx(s);
|
|
}
|
|
}
|
|
return;
|
|
undef:
|
|
gen_op_movl_T0_im((long)s->pc - 2);
|
|
gen_op_movl_reg_TN[0][15]();
|
|
gen_op_undef_insn();
|
|
s->is_jmp = DISAS_JUMP;
|
|
}
|
|
|
|
/* generate intermediate code in gen_opc_buf and gen_opparam_buf for
|
|
basic block 'tb'. If search_pc is TRUE, also generate PC
|
|
information for each intermediate instruction. */
|
|
static inline int gen_intermediate_code_internal(CPUState *env,
|
|
TranslationBlock *tb,
|
|
int search_pc)
|
|
{
|
|
DisasContext dc1, *dc = &dc1;
|
|
uint16_t *gen_opc_end;
|
|
int j, lj;
|
|
target_ulong pc_start;
|
|
uint32_t next_page_start;
|
|
|
|
/* generate intermediate code */
|
|
pc_start = tb->pc;
|
|
|
|
dc->tb = tb;
|
|
|
|
gen_opc_ptr = gen_opc_buf;
|
|
gen_opc_end = gen_opc_buf + OPC_MAX_SIZE;
|
|
gen_opparam_ptr = gen_opparam_buf;
|
|
|
|
dc->is_jmp = DISAS_NEXT;
|
|
dc->pc = pc_start;
|
|
dc->singlestep_enabled = env->singlestep_enabled;
|
|
dc->condjmp = 0;
|
|
dc->thumb = env->thumb;
|
|
dc->is_mem = 0;
|
|
#if !defined(CONFIG_USER_ONLY)
|
|
dc->user = (env->uncached_cpsr & 0x1f) == ARM_CPU_MODE_USR;
|
|
#endif
|
|
next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
|
|
nb_gen_labels = 0;
|
|
lj = -1;
|
|
do {
|
|
if (env->nb_breakpoints > 0) {
|
|
for(j = 0; j < env->nb_breakpoints; j++) {
|
|
if (env->breakpoints[j] == dc->pc) {
|
|
gen_op_movl_T0_im((long)dc->pc);
|
|
gen_op_movl_reg_TN[0][15]();
|
|
gen_op_debug();
|
|
dc->is_jmp = DISAS_JUMP;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (search_pc) {
|
|
j = gen_opc_ptr - gen_opc_buf;
|
|
if (lj < j) {
|
|
lj++;
|
|
while (lj < j)
|
|
gen_opc_instr_start[lj++] = 0;
|
|
}
|
|
gen_opc_pc[lj] = dc->pc;
|
|
gen_opc_instr_start[lj] = 1;
|
|
}
|
|
|
|
if (env->thumb)
|
|
disas_thumb_insn(dc);
|
|
else
|
|
disas_arm_insn(env, dc);
|
|
|
|
if (dc->condjmp && !dc->is_jmp) {
|
|
gen_set_label(dc->condlabel);
|
|
dc->condjmp = 0;
|
|
}
|
|
/* Terminate the TB on memory ops if watchpoints are present. */
|
|
/* FIXME: This should be replacd by the deterministic execution
|
|
* IRQ raising bits. */
|
|
if (dc->is_mem && env->nb_watchpoints)
|
|
break;
|
|
|
|
/* Translation stops when a conditional branch is enoutered.
|
|
* Otherwise the subsequent code could get translated several times.
|
|
* Also stop translation when a page boundary is reached. This
|
|
* ensures prefech aborts occur at the right place. */
|
|
} while (!dc->is_jmp && gen_opc_ptr < gen_opc_end &&
|
|
!env->singlestep_enabled &&
|
|
dc->pc < next_page_start);
|
|
/* At this stage dc->condjmp will only be set when the skipped
|
|
* instruction was a conditional branch, and the PC has already been
|
|
* written. */
|
|
if (__builtin_expect(env->singlestep_enabled, 0)) {
|
|
/* Make sure the pc is updated, and raise a debug exception. */
|
|
if (dc->condjmp) {
|
|
gen_op_debug();
|
|
gen_set_label(dc->condlabel);
|
|
}
|
|
if (dc->condjmp || !dc->is_jmp) {
|
|
gen_op_movl_T0_im((long)dc->pc);
|
|
gen_op_movl_reg_TN[0][15]();
|
|
dc->condjmp = 0;
|
|
}
|
|
gen_op_debug();
|
|
} else {
|
|
switch(dc->is_jmp) {
|
|
case DISAS_NEXT:
|
|
gen_goto_tb(dc, 1, dc->pc);
|
|
break;
|
|
default:
|
|
case DISAS_JUMP:
|
|
case DISAS_UPDATE:
|
|
/* indicate that the hash table must be used to find the next TB */
|
|
gen_op_movl_T0_0();
|
|
gen_op_exit_tb();
|
|
break;
|
|
case DISAS_TB_JUMP:
|
|
/* nothing more to generate */
|
|
break;
|
|
}
|
|
if (dc->condjmp) {
|
|
gen_set_label(dc->condlabel);
|
|
gen_goto_tb(dc, 1, dc->pc);
|
|
dc->condjmp = 0;
|
|
}
|
|
}
|
|
*gen_opc_ptr = INDEX_op_end;
|
|
|
|
#ifdef DEBUG_DISAS
|
|
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
|
fprintf(logfile, "----------------\n");
|
|
fprintf(logfile, "IN: %s\n", lookup_symbol(pc_start));
|
|
target_disas(logfile, pc_start, dc->pc - pc_start, env->thumb);
|
|
fprintf(logfile, "\n");
|
|
if (loglevel & (CPU_LOG_TB_OP)) {
|
|
fprintf(logfile, "OP:\n");
|
|
dump_ops(gen_opc_buf, gen_opparam_buf);
|
|
fprintf(logfile, "\n");
|
|
}
|
|
}
|
|
#endif
|
|
if (search_pc) {
|
|
j = gen_opc_ptr - gen_opc_buf;
|
|
lj++;
|
|
while (lj <= j)
|
|
gen_opc_instr_start[lj++] = 0;
|
|
} else {
|
|
tb->size = dc->pc - pc_start;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int gen_intermediate_code(CPUState *env, TranslationBlock *tb)
|
|
{
|
|
return gen_intermediate_code_internal(env, tb, 0);
|
|
}
|
|
|
|
int gen_intermediate_code_pc(CPUState *env, TranslationBlock *tb)
|
|
{
|
|
return gen_intermediate_code_internal(env, tb, 1);
|
|
}
|
|
|
|
static const char *cpu_mode_names[16] = {
|
|
"usr", "fiq", "irq", "svc", "???", "???", "???", "abt",
|
|
"???", "???", "???", "und", "???", "???", "???", "sys"
|
|
};
|
|
void cpu_dump_state(CPUState *env, FILE *f,
|
|
int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
|
|
int flags)
|
|
{
|
|
int i;
|
|
union {
|
|
uint32_t i;
|
|
float s;
|
|
} s0, s1;
|
|
CPU_DoubleU d;
|
|
/* ??? This assumes float64 and double have the same layout.
|
|
Oh well, it's only debug dumps. */
|
|
union {
|
|
float64 f64;
|
|
double d;
|
|
} d0;
|
|
uint32_t psr;
|
|
|
|
for(i=0;i<16;i++) {
|
|
cpu_fprintf(f, "R%02d=%08x", i, env->regs[i]);
|
|
if ((i % 4) == 3)
|
|
cpu_fprintf(f, "\n");
|
|
else
|
|
cpu_fprintf(f, " ");
|
|
}
|
|
psr = cpsr_read(env);
|
|
cpu_fprintf(f, "PSR=%08x %c%c%c%c %c %s%d\n",
|
|
psr,
|
|
psr & (1 << 31) ? 'N' : '-',
|
|
psr & (1 << 30) ? 'Z' : '-',
|
|
psr & (1 << 29) ? 'C' : '-',
|
|
psr & (1 << 28) ? 'V' : '-',
|
|
psr & CPSR_T ? 'T' : 'A',
|
|
cpu_mode_names[psr & 0xf], (psr & 0x10) ? 32 : 26);
|
|
|
|
for (i = 0; i < 16; i++) {
|
|
d.d = env->vfp.regs[i];
|
|
s0.i = d.l.lower;
|
|
s1.i = d.l.upper;
|
|
d0.f64 = d.d;
|
|
cpu_fprintf(f, "s%02d=%08x(%8g) s%02d=%08x(%8g) d%02d=%08x%08x(%8g)\n",
|
|
i * 2, (int)s0.i, s0.s,
|
|
i * 2 + 1, (int)s1.i, s1.s,
|
|
i, (int)(uint32_t)d.l.upper, (int)(uint32_t)d.l.lower,
|
|
d0.d);
|
|
}
|
|
cpu_fprintf(f, "FPSCR: %08x\n", (int)env->vfp.xregs[ARM_VFP_FPSCR]);
|
|
}
|
|
|