git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@743 c046a42c-6fe2-441c-8c8c-71466251a162
888 lines
23 KiB
C
888 lines
23 KiB
C
/*
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SPARC translation
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Copyright (C) 2003 Thomas M. Ogrisegg <tom@fnord.at>
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Copyright (C) 2003 Fabrice Bellard
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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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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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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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/*
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TODO-list:
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NPC/PC static optimisations (use JUMP_TB when possible)
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FPU-Instructions
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Privileged instructions
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Coprocessor-Instructions
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Optimize synthetic instructions
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Optional alignment and privileged instruction check
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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 DEBUG_DISAS
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#define DYNAMIC_PC 1 /* dynamic pc value */
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#define JUMP_PC 2 /* dynamic pc value which takes only two values
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according to jump_pc[T2] */
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typedef struct DisasContext {
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target_ulong pc; /* current Program Counter: integer or DYNAMIC_PC */
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target_ulong npc; /* next PC: integer or DYNAMIC_PC or JUMP_PC */
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target_ulong jump_pc[2]; /* used when JUMP_PC pc value is used */
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int is_br;
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struct TranslationBlock *tb;
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} DisasContext;
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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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#define GET_FIELD(X, FROM, TO) \
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((X) >> (31 - (TO)) & ((1 << ((TO) - (FROM) + 1)) - 1))
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#define IS_IMM (insn & (1<<13))
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static void disas_sparc_insn(DisasContext * dc);
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static GenOpFunc *gen_op_movl_TN_reg[2][32] = {
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{
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gen_op_movl_g0_T0,
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gen_op_movl_g1_T0,
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gen_op_movl_g2_T0,
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gen_op_movl_g3_T0,
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gen_op_movl_g4_T0,
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gen_op_movl_g5_T0,
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gen_op_movl_g6_T0,
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gen_op_movl_g7_T0,
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gen_op_movl_o0_T0,
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gen_op_movl_o1_T0,
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gen_op_movl_o2_T0,
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gen_op_movl_o3_T0,
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gen_op_movl_o4_T0,
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gen_op_movl_o5_T0,
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gen_op_movl_o6_T0,
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gen_op_movl_o7_T0,
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gen_op_movl_l0_T0,
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gen_op_movl_l1_T0,
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gen_op_movl_l2_T0,
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gen_op_movl_l3_T0,
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gen_op_movl_l4_T0,
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gen_op_movl_l5_T0,
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gen_op_movl_l6_T0,
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gen_op_movl_l7_T0,
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gen_op_movl_i0_T0,
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gen_op_movl_i1_T0,
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gen_op_movl_i2_T0,
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gen_op_movl_i3_T0,
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gen_op_movl_i4_T0,
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gen_op_movl_i5_T0,
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gen_op_movl_i6_T0,
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gen_op_movl_i7_T0,
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},
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{
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gen_op_movl_g0_T1,
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gen_op_movl_g1_T1,
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gen_op_movl_g2_T1,
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gen_op_movl_g3_T1,
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gen_op_movl_g4_T1,
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gen_op_movl_g5_T1,
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gen_op_movl_g6_T1,
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gen_op_movl_g7_T1,
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gen_op_movl_o0_T1,
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gen_op_movl_o1_T1,
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gen_op_movl_o2_T1,
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gen_op_movl_o3_T1,
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gen_op_movl_o4_T1,
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gen_op_movl_o5_T1,
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gen_op_movl_o6_T1,
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gen_op_movl_o7_T1,
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gen_op_movl_l0_T1,
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gen_op_movl_l1_T1,
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gen_op_movl_l2_T1,
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gen_op_movl_l3_T1,
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gen_op_movl_l4_T1,
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gen_op_movl_l5_T1,
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gen_op_movl_l6_T1,
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gen_op_movl_l7_T1,
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gen_op_movl_i0_T1,
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gen_op_movl_i1_T1,
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gen_op_movl_i2_T1,
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gen_op_movl_i3_T1,
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gen_op_movl_i4_T1,
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gen_op_movl_i5_T1,
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gen_op_movl_i6_T1,
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gen_op_movl_i7_T1,
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}
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};
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static GenOpFunc *gen_op_movl_reg_TN[3][32] = {
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{
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gen_op_movl_T0_g0,
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gen_op_movl_T0_g1,
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gen_op_movl_T0_g2,
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gen_op_movl_T0_g3,
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gen_op_movl_T0_g4,
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gen_op_movl_T0_g5,
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gen_op_movl_T0_g6,
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gen_op_movl_T0_g7,
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gen_op_movl_T0_o0,
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gen_op_movl_T0_o1,
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gen_op_movl_T0_o2,
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gen_op_movl_T0_o3,
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gen_op_movl_T0_o4,
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gen_op_movl_T0_o5,
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gen_op_movl_T0_o6,
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gen_op_movl_T0_o7,
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gen_op_movl_T0_l0,
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gen_op_movl_T0_l1,
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gen_op_movl_T0_l2,
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gen_op_movl_T0_l3,
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gen_op_movl_T0_l4,
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gen_op_movl_T0_l5,
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gen_op_movl_T0_l6,
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gen_op_movl_T0_l7,
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gen_op_movl_T0_i0,
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gen_op_movl_T0_i1,
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gen_op_movl_T0_i2,
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gen_op_movl_T0_i3,
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gen_op_movl_T0_i4,
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gen_op_movl_T0_i5,
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gen_op_movl_T0_i6,
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gen_op_movl_T0_i7,
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},
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{
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gen_op_movl_T1_g0,
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gen_op_movl_T1_g1,
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gen_op_movl_T1_g2,
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gen_op_movl_T1_g3,
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gen_op_movl_T1_g4,
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gen_op_movl_T1_g5,
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gen_op_movl_T1_g6,
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gen_op_movl_T1_g7,
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gen_op_movl_T1_o0,
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gen_op_movl_T1_o1,
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gen_op_movl_T1_o2,
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gen_op_movl_T1_o3,
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gen_op_movl_T1_o4,
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gen_op_movl_T1_o5,
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gen_op_movl_T1_o6,
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gen_op_movl_T1_o7,
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gen_op_movl_T1_l0,
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gen_op_movl_T1_l1,
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gen_op_movl_T1_l2,
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gen_op_movl_T1_l3,
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gen_op_movl_T1_l4,
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gen_op_movl_T1_l5,
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gen_op_movl_T1_l6,
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gen_op_movl_T1_l7,
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gen_op_movl_T1_i0,
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gen_op_movl_T1_i1,
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gen_op_movl_T1_i2,
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gen_op_movl_T1_i3,
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gen_op_movl_T1_i4,
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gen_op_movl_T1_i5,
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gen_op_movl_T1_i6,
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gen_op_movl_T1_i7,
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},
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{
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gen_op_movl_T2_g0,
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gen_op_movl_T2_g1,
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gen_op_movl_T2_g2,
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gen_op_movl_T2_g3,
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gen_op_movl_T2_g4,
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gen_op_movl_T2_g5,
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gen_op_movl_T2_g6,
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gen_op_movl_T2_g7,
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gen_op_movl_T2_o0,
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gen_op_movl_T2_o1,
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gen_op_movl_T2_o2,
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gen_op_movl_T2_o3,
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gen_op_movl_T2_o4,
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gen_op_movl_T2_o5,
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gen_op_movl_T2_o6,
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gen_op_movl_T2_o7,
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gen_op_movl_T2_l0,
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gen_op_movl_T2_l1,
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gen_op_movl_T2_l2,
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gen_op_movl_T2_l3,
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gen_op_movl_T2_l4,
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gen_op_movl_T2_l5,
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gen_op_movl_T2_l6,
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gen_op_movl_T2_l7,
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gen_op_movl_T2_i0,
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gen_op_movl_T2_i1,
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gen_op_movl_T2_i2,
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gen_op_movl_T2_i3,
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gen_op_movl_T2_i4,
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gen_op_movl_T2_i5,
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gen_op_movl_T2_i6,
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gen_op_movl_T2_i7,
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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 inline void gen_movl_imm_TN(int reg, int imm)
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{
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gen_op_movl_TN_im[reg] (imm);
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}
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static inline void gen_movl_imm_T1(int val)
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{
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gen_movl_imm_TN(1, val);
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}
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static inline void gen_movl_imm_T0(int val)
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{
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gen_movl_imm_TN(0, val);
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}
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static inline void gen_movl_reg_TN(int reg, int t)
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{
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if (reg)
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gen_op_movl_reg_TN[t][reg] ();
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else
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gen_movl_imm_TN(t, 0);
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}
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static inline void gen_movl_reg_T0(int reg)
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{
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gen_movl_reg_TN(reg, 0);
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}
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static inline void gen_movl_reg_T1(int reg)
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{
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gen_movl_reg_TN(reg, 1);
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}
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static inline void gen_movl_reg_T2(int reg)
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{
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gen_movl_reg_TN(reg, 2);
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}
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static inline void gen_movl_TN_reg(int reg, int t)
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{
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if (reg)
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gen_op_movl_TN_reg[t][reg] ();
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}
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static inline void gen_movl_T0_reg(int reg)
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{
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gen_movl_TN_reg(reg, 0);
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}
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static inline void gen_movl_T1_reg(int reg)
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{
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gen_movl_TN_reg(reg, 1);
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}
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/* call this function before using T2 as it may have been set for a jump */
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static inline void flush_T2(DisasContext * dc)
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{
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if (dc->npc == JUMP_PC) {
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gen_op_generic_branch(dc->jump_pc[0], dc->jump_pc[1]);
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dc->npc = DYNAMIC_PC;
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}
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}
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static inline void save_npc(DisasContext * dc)
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{
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if (dc->npc == JUMP_PC) {
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gen_op_generic_branch(dc->jump_pc[0], dc->jump_pc[1]);
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dc->npc = DYNAMIC_PC;
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} else if (dc->npc != DYNAMIC_PC) {
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gen_op_movl_npc_im(dc->npc);
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}
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}
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static inline void save_state(DisasContext * dc)
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{
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gen_op_jmp_im((uint32_t)dc->pc);
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save_npc(dc);
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}
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static void gen_cond(int cond)
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{
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switch (cond) {
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case 0x0:
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gen_op_movl_T2_0();
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break;
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case 0x1:
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gen_op_eval_be();
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break;
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case 0x2:
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gen_op_eval_ble();
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break;
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case 0x3:
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gen_op_eval_bl();
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break;
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case 0x4:
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gen_op_eval_bleu();
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break;
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case 0x5:
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gen_op_eval_bcs();
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break;
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case 0x6:
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gen_op_eval_bneg();
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break;
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case 0x7:
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gen_op_eval_bvs();
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break;
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case 0x8:
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gen_op_movl_T2_1();
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break;
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case 0x9:
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gen_op_eval_bne();
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break;
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case 0xa:
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gen_op_eval_bg();
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break;
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case 0xb:
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gen_op_eval_bge();
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break;
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case 0xc:
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gen_op_eval_bgu();
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break;
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case 0xd:
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gen_op_eval_bcc();
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break;
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case 0xe:
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gen_op_eval_bpos();
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break;
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default:
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case 0xf:
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gen_op_eval_bvc();
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break;
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}
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}
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static void do_branch(DisasContext * dc, uint32_t target, uint32_t insn)
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{
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unsigned int cond = GET_FIELD(insn, 3, 6), a = (insn & (1 << 29));
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target += (uint32_t) dc->pc;
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if (cond == 0x0) {
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/* unconditional not taken */
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if (a) {
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dc->pc = dc->npc + 4;
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dc->npc = dc->pc + 4;
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} else {
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dc->pc = dc->npc;
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dc->npc = dc->pc + 4;
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}
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} else if (cond == 0x8) {
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/* unconditional taken */
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if (a) {
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dc->pc = target;
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dc->npc = dc->pc + 4;
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} else {
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dc->pc = dc->npc;
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dc->npc = target;
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}
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} else {
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flush_T2(dc);
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gen_cond(cond);
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if (a) {
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gen_op_branch_a((long)dc->tb, target, dc->npc);
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dc->is_br = 1;
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} else {
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dc->pc = dc->npc;
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dc->jump_pc[0] = target;
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dc->jump_pc[1] = dc->npc + 4;
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dc->npc = JUMP_PC;
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}
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}
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}
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#define GET_FIELDs(x,a,b) sign_extend (GET_FIELD(x,a,b), (b) - (a) + 1)
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static int sign_extend(int x, int len)
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{
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len = 32 - len;
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return (x << len) >> len;
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}
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static void disas_sparc_insn(DisasContext * dc)
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{
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unsigned int insn, opc, rs1, rs2, rd;
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insn = ldl_code((uint8_t *)dc->pc);
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opc = GET_FIELD(insn, 0, 1);
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rd = GET_FIELD(insn, 2, 6);
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switch (opc) {
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case 0: /* branches/sethi */
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{
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unsigned int xop = GET_FIELD(insn, 7, 9);
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int target;
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target = GET_FIELD(insn, 10, 31);
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switch (xop) {
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case 0x0:
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case 0x1: /* UNIMPL */
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goto illegal_insn;
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case 0x2: /* BN+x */
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{
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target <<= 2;
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target = sign_extend(target, 22);
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do_branch(dc, target, insn);
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goto jmp_insn;
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}
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case 0x3: /* FBN+x */
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break;
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case 0x4: /* SETHI */
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gen_movl_imm_T0(target << 10);
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gen_movl_T0_reg(rd);
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break;
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case 0x5: /*CBN+x */
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break;
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}
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break;
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}
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case 1:
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/*CALL*/ {
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unsigned int target = GET_FIELDs(insn, 2, 31) << 2;
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gen_op_movl_T0_im((long) (dc->pc));
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gen_movl_T0_reg(15);
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target = dc->pc + target;
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dc->pc = dc->npc;
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dc->npc = target;
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}
|
|
goto jmp_insn;
|
|
case 2: /* FPU & Logical Operations */
|
|
{
|
|
unsigned int xop = GET_FIELD(insn, 7, 12);
|
|
if (xop == 0x3a) { /* generate trap */
|
|
int cond;
|
|
rs1 = GET_FIELD(insn, 13, 17);
|
|
gen_movl_reg_T0(rs1);
|
|
if (IS_IMM) {
|
|
gen_movl_imm_T1(GET_FIELD(insn, 25, 31));
|
|
} else {
|
|
rs2 = GET_FIELD(insn, 27, 31);
|
|
gen_movl_reg_T1(rs2);
|
|
}
|
|
gen_op_add_T1_T0();
|
|
save_state(dc);
|
|
cond = GET_FIELD(insn, 3, 6);
|
|
if (cond == 0x8) {
|
|
gen_op_trap_T0();
|
|
dc->is_br = 1;
|
|
goto jmp_insn;
|
|
} else {
|
|
gen_op_trapcc_T0();
|
|
}
|
|
} else if (xop == 0x28) {
|
|
rs1 = GET_FIELD(insn, 13, 17);
|
|
switch(rs1) {
|
|
case 0: /* rdy */
|
|
gen_op_rdy();
|
|
gen_movl_T0_reg(rd);
|
|
break;
|
|
default:
|
|
goto illegal_insn;
|
|
}
|
|
} else if (xop == 0x34 || xop == 0x35) { /* FPU Operations */
|
|
goto illegal_insn;
|
|
} else {
|
|
rs1 = GET_FIELD(insn, 13, 17);
|
|
gen_movl_reg_T0(rs1);
|
|
if (IS_IMM) { /* immediate */
|
|
rs2 = GET_FIELDs(insn, 19, 31);
|
|
gen_movl_imm_T1(rs2);
|
|
} else { /* register */
|
|
rs2 = GET_FIELD(insn, 27, 31);
|
|
gen_movl_reg_T1(rs2);
|
|
}
|
|
if (xop < 0x20) {
|
|
switch (xop & ~0x10) {
|
|
case 0x0:
|
|
if (xop & 0x10)
|
|
gen_op_add_T1_T0_cc();
|
|
else
|
|
gen_op_add_T1_T0();
|
|
break;
|
|
case 0x1:
|
|
gen_op_and_T1_T0();
|
|
if (xop & 0x10)
|
|
gen_op_logic_T0_cc();
|
|
break;
|
|
case 0x2:
|
|
gen_op_or_T1_T0();
|
|
if (xop & 0x10)
|
|
gen_op_logic_T0_cc();
|
|
break;
|
|
case 0x3:
|
|
gen_op_xor_T1_T0();
|
|
if (xop & 0x10)
|
|
gen_op_logic_T0_cc();
|
|
break;
|
|
case 0x4:
|
|
if (xop & 0x10)
|
|
gen_op_sub_T1_T0_cc();
|
|
else
|
|
gen_op_sub_T1_T0();
|
|
break;
|
|
case 0x5:
|
|
gen_op_andn_T1_T0();
|
|
if (xop & 0x10)
|
|
gen_op_logic_T0_cc();
|
|
break;
|
|
case 0x6:
|
|
gen_op_orn_T1_T0();
|
|
if (xop & 0x10)
|
|
gen_op_logic_T0_cc();
|
|
break;
|
|
case 0x7:
|
|
gen_op_xnor_T1_T0();
|
|
if (xop & 0x10)
|
|
gen_op_logic_T0_cc();
|
|
break;
|
|
case 0x8:
|
|
gen_op_addx_T1_T0();
|
|
if (xop & 0x10)
|
|
gen_op_set_flags();
|
|
break;
|
|
case 0xa:
|
|
gen_op_umul_T1_T0();
|
|
if (xop & 0x10)
|
|
gen_op_logic_T0_cc();
|
|
break;
|
|
case 0xb:
|
|
gen_op_smul_T1_T0();
|
|
if (xop & 0x10)
|
|
gen_op_logic_T0_cc();
|
|
break;
|
|
case 0xc:
|
|
gen_op_subx_T1_T0();
|
|
if (xop & 0x10)
|
|
gen_op_set_flags();
|
|
break;
|
|
case 0xe:
|
|
gen_op_udiv_T1_T0();
|
|
if (xop & 0x10)
|
|
gen_op_div_cc();
|
|
break;
|
|
case 0xf:
|
|
gen_op_sdiv_T1_T0();
|
|
if (xop & 0x10)
|
|
gen_op_div_cc();
|
|
break;
|
|
default:
|
|
goto illegal_insn;
|
|
}
|
|
gen_movl_T0_reg(rd);
|
|
} else {
|
|
switch (xop) {
|
|
case 0x24: /* mulscc */
|
|
gen_op_mulscc_T1_T0();
|
|
gen_movl_T0_reg(rd);
|
|
break;
|
|
case 0x25: /* SLL */
|
|
gen_op_sll();
|
|
gen_movl_T0_reg(rd);
|
|
break;
|
|
case 0x26:
|
|
gen_op_srl();
|
|
gen_movl_T0_reg(rd);
|
|
break;
|
|
case 0x27:
|
|
gen_op_sra();
|
|
gen_movl_T0_reg(rd);
|
|
break;
|
|
case 0x30:
|
|
{
|
|
gen_op_xor_T1_T0();
|
|
switch(rd) {
|
|
case 0:
|
|
gen_op_wry();
|
|
break;
|
|
default:
|
|
goto illegal_insn;
|
|
}
|
|
}
|
|
break;
|
|
case 0x38: /* jmpl */
|
|
{
|
|
gen_op_add_T1_T0();
|
|
gen_op_movl_npc_T0();
|
|
if (rd != 0) {
|
|
gen_op_movl_T0_im((long) (dc->pc));
|
|
gen_movl_T0_reg(rd);
|
|
}
|
|
dc->pc = dc->npc;
|
|
dc->npc = DYNAMIC_PC;
|
|
}
|
|
goto jmp_insn;
|
|
case 0x3b: /* flush */
|
|
gen_op_add_T1_T0();
|
|
gen_op_flush_T0();
|
|
break;
|
|
case 0x3c: /* save */
|
|
save_state(dc);
|
|
gen_op_add_T1_T0();
|
|
gen_op_save();
|
|
gen_movl_T0_reg(rd);
|
|
break;
|
|
case 0x3d: /* restore */
|
|
save_state(dc);
|
|
gen_op_add_T1_T0();
|
|
gen_op_restore();
|
|
gen_movl_T0_reg(rd);
|
|
break;
|
|
default:
|
|
goto illegal_insn;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case 3: /* load/store instructions */
|
|
{
|
|
unsigned int xop = GET_FIELD(insn, 7, 12);
|
|
rs1 = GET_FIELD(insn, 13, 17);
|
|
gen_movl_reg_T0(rs1);
|
|
if (IS_IMM) { /* immediate */
|
|
rs2 = GET_FIELDs(insn, 19, 31);
|
|
gen_movl_imm_T1(rs2);
|
|
} else { /* register */
|
|
rs2 = GET_FIELD(insn, 27, 31);
|
|
gen_movl_reg_T1(rs2);
|
|
}
|
|
gen_op_add_T1_T0();
|
|
if (xop < 4 || xop > 7) {
|
|
switch (xop) {
|
|
case 0x0: /* load word */
|
|
gen_op_ld();
|
|
break;
|
|
case 0x1: /* load unsigned byte */
|
|
gen_op_ldub();
|
|
break;
|
|
case 0x2: /* load unsigned halfword */
|
|
gen_op_lduh();
|
|
break;
|
|
case 0x3: /* load double word */
|
|
gen_op_ldd();
|
|
gen_movl_T0_reg(rd + 1);
|
|
break;
|
|
case 0x9: /* load signed byte */
|
|
gen_op_ldsb();
|
|
break;
|
|
case 0xa: /* load signed halfword */
|
|
gen_op_ldsh();
|
|
break;
|
|
case 0xd: /* ldstub -- XXX: should be atomically */
|
|
gen_op_ldstub();
|
|
break;
|
|
case 0x0f: /* swap register with memory. Also atomically */
|
|
gen_op_swap();
|
|
break;
|
|
}
|
|
gen_movl_T1_reg(rd);
|
|
} else if (xop < 8) {
|
|
gen_movl_reg_T1(rd);
|
|
switch (xop) {
|
|
case 0x4:
|
|
gen_op_st();
|
|
break;
|
|
case 0x5:
|
|
gen_op_stb();
|
|
break;
|
|
case 0x6:
|
|
gen_op_sth();
|
|
break;
|
|
case 0x7:
|
|
flush_T2(dc);
|
|
gen_movl_reg_T2(rd + 1);
|
|
gen_op_std();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/* default case for non jump instructions */
|
|
if (dc->npc == DYNAMIC_PC) {
|
|
dc->pc = DYNAMIC_PC;
|
|
gen_op_next_insn();
|
|
} else if (dc->npc == JUMP_PC) {
|
|
/* we can do a static jump */
|
|
gen_op_branch2((long)dc->tb, dc->jump_pc[0], dc->jump_pc[1]);
|
|
dc->is_br = 1;
|
|
} else {
|
|
dc->pc = dc->npc;
|
|
dc->npc = dc->npc + 4;
|
|
}
|
|
jmp_insn:;
|
|
return;
|
|
illegal_insn:
|
|
save_state(dc);
|
|
gen_op_exception(TT_ILL_INSN);
|
|
dc->is_br = 1;
|
|
}
|
|
|
|
static inline int gen_intermediate_code_internal(TranslationBlock * tb,
|
|
int spc)
|
|
{
|
|
target_ulong pc_start, last_pc;
|
|
uint16_t *gen_opc_end;
|
|
DisasContext dc1, *dc = &dc1;
|
|
|
|
memset(dc, 0, sizeof(DisasContext));
|
|
if (spc) {
|
|
printf("SearchPC not yet supported\n");
|
|
exit(0);
|
|
}
|
|
dc->tb = tb;
|
|
pc_start = tb->pc;
|
|
dc->pc = pc_start;
|
|
dc->npc = (target_ulong) tb->cs_base;
|
|
|
|
gen_opc_ptr = gen_opc_buf;
|
|
gen_opc_end = gen_opc_buf + OPC_MAX_SIZE;
|
|
gen_opparam_ptr = gen_opparam_buf;
|
|
|
|
do {
|
|
last_pc = dc->pc;
|
|
disas_sparc_insn(dc);
|
|
if (dc->is_br)
|
|
break;
|
|
/* if the next PC is different, we abort now */
|
|
if (dc->pc != (last_pc + 4))
|
|
break;
|
|
} while ((gen_opc_ptr < gen_opc_end) &&
|
|
(dc->pc - pc_start) < (TARGET_PAGE_SIZE - 32));
|
|
if (!dc->is_br) {
|
|
if (dc->pc != DYNAMIC_PC &&
|
|
(dc->npc != DYNAMIC_PC && dc->npc != JUMP_PC)) {
|
|
/* static PC and NPC: we can use direct chaining */
|
|
gen_op_branch((long)tb, dc->pc, dc->npc);
|
|
} else {
|
|
if (dc->pc != DYNAMIC_PC)
|
|
gen_op_jmp_im(dc->pc);
|
|
save_npc(dc);
|
|
gen_op_movl_T0_0();
|
|
gen_op_exit_tb();
|
|
}
|
|
}
|
|
*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((uint8_t *)pc_start));
|
|
disas(logfile, (uint8_t *)pc_start, last_pc + 4 - pc_start, 0, 0);
|
|
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
|
|
|
|
return 0;
|
|
}
|
|
|
|
int gen_intermediate_code(CPUSPARCState * env, TranslationBlock * tb)
|
|
{
|
|
return gen_intermediate_code_internal(tb, 0);
|
|
}
|
|
|
|
int gen_intermediate_code_pc(CPUSPARCState * env, TranslationBlock * tb)
|
|
{
|
|
return gen_intermediate_code_internal(tb, 1);
|
|
}
|
|
|
|
CPUSPARCState *cpu_sparc_init(void)
|
|
{
|
|
CPUSPARCState *env;
|
|
|
|
cpu_exec_init();
|
|
|
|
if (!(env = malloc(sizeof(CPUSPARCState))))
|
|
return (NULL);
|
|
memset(env, 0, sizeof(*env));
|
|
env->cwp = 0;
|
|
env->wim = 1;
|
|
env->regwptr = env->regbase + (env->cwp * 16);
|
|
env->user_mode_only = 1;
|
|
return (env);
|
|
}
|
|
|
|
#define GET_FLAG(a,b) ((env->psr & a)?b:'-')
|
|
|
|
void cpu_sparc_dump_state(CPUSPARCState * env, FILE * f, int flags)
|
|
{
|
|
int i, x;
|
|
|
|
fprintf(f, "pc: 0x%08x npc: 0x%08x\n", (int) env->pc, (int) env->npc);
|
|
fprintf(f, "General Registers:\n");
|
|
for (i = 0; i < 4; i++)
|
|
fprintf(f, "%%g%c: 0x%08x\t", i + '0', env->gregs[i]);
|
|
fprintf(f, "\n");
|
|
for (; i < 8; i++)
|
|
fprintf(f, "%%g%c: 0x%08x\t", i + '0', env->gregs[i]);
|
|
fprintf(f, "\nCurrent Register Window:\n");
|
|
for (x = 0; x < 3; x++) {
|
|
for (i = 0; i < 4; i++)
|
|
fprintf(f, "%%%c%d: 0x%08x\t",
|
|
(x == 0 ? 'o' : (x == 1 ? 'l' : 'i')), i,
|
|
env->regwptr[i + x * 8]);
|
|
fprintf(f, "\n");
|
|
for (; i < 8; i++)
|
|
fprintf(f, "%%%c%d: 0x%08x\t",
|
|
(x == 0 ? 'o' : x == 1 ? 'l' : 'i'), i,
|
|
env->regwptr[i + x * 8]);
|
|
fprintf(f, "\n");
|
|
}
|
|
fprintf(f, "psr: 0x%08x -> %c%c%c%c wim: 0x%08x\n", env->psr | env->cwp,
|
|
GET_FLAG(PSR_ZERO, 'Z'), GET_FLAG(PSR_OVF, 'V'),
|
|
GET_FLAG(PSR_NEG, 'N'), GET_FLAG(PSR_CARRY, 'C'),
|
|
env->wim);
|
|
}
|
|
|
|
target_ulong cpu_get_phys_page_debug(CPUState *env, target_ulong addr)
|
|
{
|
|
return addr;
|
|
}
|
|
|
|
void helper_flush(target_ulong addr)
|
|
{
|
|
addr &= ~7;
|
|
tb_invalidate_page_range(addr, addr + 8);
|
|
}
|