root / target-ppc / translate.c @ a0ae05aa
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/*
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* PowerPC emulation for qemu: main translation routines.
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*
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* Copyright (c) 2003-2005 Jocelyn Mayer
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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 DO_SINGLE_STEP
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//#define PPC_DEBUG_DISAS
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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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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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static uint16_t *gen_opc_ptr;
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static uint32_t *gen_opparam_ptr;
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#include "gen-op.h" |
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#define GEN8(func, NAME) \
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static GenOpFunc *NAME ## _table [8] = { \ |
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NAME ## 0, NAME ## 1, NAME ## 2, NAME ## 3, \ |
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NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7, \ |
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}; \ |
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static inline void func(int n) \ |
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{ \
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NAME ## _table[n](); \ |
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} |
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#define GEN16(func, NAME) \
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static GenOpFunc *NAME ## _table [16] = { \ |
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NAME ## 0, NAME ## 1, NAME ## 2, NAME ## 3, \ |
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NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7, \ |
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NAME ## 8, NAME ## 9, NAME ## 10, NAME ## 11, \ |
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NAME ## 12, NAME ## 13, NAME ## 14, NAME ## 15, \ |
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}; \ |
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static inline void func(int n) \ |
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{ \
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NAME ## _table[n](); \ |
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} |
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#define GEN32(func, NAME) \
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static GenOpFunc *NAME ## _table [32] = { \ |
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NAME ## 0, NAME ## 1, NAME ## 2, NAME ## 3, \ |
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NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7, \ |
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NAME ## 8, NAME ## 9, NAME ## 10, NAME ## 11, \ |
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NAME ## 12, NAME ## 13, NAME ## 14, NAME ## 15, \ |
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NAME ## 16, NAME ## 17, NAME ## 18, NAME ## 19, \ |
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NAME ## 20, NAME ## 21, NAME ## 22, NAME ## 23, \ |
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NAME ## 24, NAME ## 25, NAME ## 26, NAME ## 27, \ |
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NAME ## 28, NAME ## 29, NAME ## 30, NAME ## 31, \ |
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}; \ |
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static inline void func(int n) \ |
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{ \
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NAME ## _table[n](); \ |
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} |
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|
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/* Condition register moves */
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GEN8(gen_op_load_crf_T0, gen_op_load_crf_T0_crf); |
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GEN8(gen_op_load_crf_T1, gen_op_load_crf_T1_crf); |
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GEN8(gen_op_store_T0_crf, gen_op_store_T0_crf_crf); |
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GEN8(gen_op_store_T1_crf, gen_op_store_T1_crf_crf); |
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/* Floating point condition and status register moves */
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GEN8(gen_op_load_fpscr_T0, gen_op_load_fpscr_T0_fpscr); |
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GEN8(gen_op_store_T0_fpscr, gen_op_store_T0_fpscr_fpscr); |
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GEN8(gen_op_clear_fpscr, gen_op_clear_fpscr_fpscr); |
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static GenOpFunc1 *gen_op_store_T0_fpscri_fpscr_table[8] = { |
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&gen_op_store_T0_fpscri_fpscr0, |
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&gen_op_store_T0_fpscri_fpscr1, |
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&gen_op_store_T0_fpscri_fpscr2, |
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&gen_op_store_T0_fpscri_fpscr3, |
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&gen_op_store_T0_fpscri_fpscr4, |
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&gen_op_store_T0_fpscri_fpscr5, |
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&gen_op_store_T0_fpscri_fpscr6, |
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&gen_op_store_T0_fpscri_fpscr7, |
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}; |
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static inline void gen_op_store_T0_fpscri(int n, uint8_t param) |
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{
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(*gen_op_store_T0_fpscri_fpscr_table[n])(param); |
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} |
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/* Segment register moves */
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GEN16(gen_op_load_sr, gen_op_load_sr); |
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GEN16(gen_op_store_sr, gen_op_store_sr); |
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/* General purpose registers moves */
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GEN32(gen_op_load_gpr_T0, gen_op_load_gpr_T0_gpr); |
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GEN32(gen_op_load_gpr_T1, gen_op_load_gpr_T1_gpr); |
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GEN32(gen_op_load_gpr_T2, gen_op_load_gpr_T2_gpr); |
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GEN32(gen_op_store_T0_gpr, gen_op_store_T0_gpr_gpr); |
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GEN32(gen_op_store_T1_gpr, gen_op_store_T1_gpr_gpr); |
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GEN32(gen_op_store_T2_gpr, gen_op_store_T2_gpr_gpr); |
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/* floating point registers moves */
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GEN32(gen_op_load_fpr_FT0, gen_op_load_fpr_FT0_fpr); |
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GEN32(gen_op_load_fpr_FT1, gen_op_load_fpr_FT1_fpr); |
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GEN32(gen_op_load_fpr_FT2, gen_op_load_fpr_FT2_fpr); |
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GEN32(gen_op_store_FT0_fpr, gen_op_store_FT0_fpr_fpr); |
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GEN32(gen_op_store_FT1_fpr, gen_op_store_FT1_fpr_fpr); |
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GEN32(gen_op_store_FT2_fpr, gen_op_store_FT2_fpr_fpr); |
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static uint8_t spr_access[1024 / 2]; |
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/* internal defines */
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typedef struct DisasContext { |
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struct TranslationBlock *tb;
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target_ulong nip; |
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uint32_t opcode; |
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uint32_t exception; |
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/* Routine used to access memory */
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int mem_idx;
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/* Translation flags */
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#if !defined(CONFIG_USER_ONLY)
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int supervisor;
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#endif
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int fpu_enabled;
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ppc_spr_t *spr_cb; /* Needed to check rights for mfspr/mtspr */
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int singlestep_enabled;
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} DisasContext; |
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struct opc_handler_t {
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/* invalid bits */
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uint32_t inval; |
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/* instruction type */
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uint32_t type; |
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/* handler */
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void (*handler)(DisasContext *ctx);
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}; |
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#define RET_EXCP(ctx, excp, error) \
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do { \
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if ((ctx)->exception == EXCP_NONE) { \
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gen_op_update_nip((ctx)->nip); \ |
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} \ |
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gen_op_raise_exception_err((excp), (error)); \ |
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ctx->exception = (excp); \ |
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} while (0) |
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#define RET_INVAL(ctx) \
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RET_EXCP((ctx), EXCP_PROGRAM, EXCP_INVAL | EXCP_INVAL_INVAL) |
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#define RET_PRIVOPC(ctx) \
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RET_EXCP((ctx), EXCP_PROGRAM, EXCP_INVAL | EXCP_PRIV_OPC) |
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#define RET_PRIVREG(ctx) \
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RET_EXCP((ctx), EXCP_PROGRAM, EXCP_INVAL | EXCP_PRIV_REG) |
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/* Stop translation */
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static inline void RET_STOP (DisasContext *ctx) |
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{
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gen_op_update_nip((ctx)->nip); |
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ctx->exception = EXCP_MTMSR; |
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} |
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/* No need to update nip here, as execution flow will change */
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static inline void RET_CHG_FLOW (DisasContext *ctx) |
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{
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ctx->exception = EXCP_MTMSR; |
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} |
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#define GEN_HANDLER(name, opc1, opc2, opc3, inval, type) \
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static void gen_##name (DisasContext *ctx); \ |
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GEN_OPCODE(name, opc1, opc2, opc3, inval, type); \ |
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static void gen_##name (DisasContext *ctx) |
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typedef struct opcode_t { |
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unsigned char opc1, opc2, opc3; |
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#if HOST_LONG_BITS == 64 /* Explicitely align to 64 bits */ |
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unsigned char pad[5]; |
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#else
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unsigned char pad[1]; |
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#endif
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opc_handler_t handler; |
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const unsigned char *oname; |
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} opcode_t; |
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/*** Instruction decoding ***/
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#define EXTRACT_HELPER(name, shift, nb) \
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static inline uint32_t name (uint32_t opcode) \ |
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{ \
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return (opcode >> (shift)) & ((1 << (nb)) - 1); \ |
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} |
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#define EXTRACT_SHELPER(name, shift, nb) \
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static inline int32_t name (uint32_t opcode) \ |
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{ \
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return (int16_t)((opcode >> (shift)) & ((1 << (nb)) - 1)); \ |
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} |
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/* Opcode part 1 */
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EXTRACT_HELPER(opc1, 26, 6); |
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/* Opcode part 2 */
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EXTRACT_HELPER(opc2, 1, 5); |
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/* Opcode part 3 */
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EXTRACT_HELPER(opc3, 6, 5); |
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/* Update Cr0 flags */
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EXTRACT_HELPER(Rc, 0, 1); |
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/* Destination */
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EXTRACT_HELPER(rD, 21, 5); |
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/* Source */
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EXTRACT_HELPER(rS, 21, 5); |
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/* First operand */
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EXTRACT_HELPER(rA, 16, 5); |
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/* Second operand */
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EXTRACT_HELPER(rB, 11, 5); |
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/* Third operand */
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EXTRACT_HELPER(rC, 6, 5); |
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/*** Get CRn ***/
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EXTRACT_HELPER(crfD, 23, 3); |
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EXTRACT_HELPER(crfS, 18, 3); |
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EXTRACT_HELPER(crbD, 21, 5); |
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EXTRACT_HELPER(crbA, 16, 5); |
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EXTRACT_HELPER(crbB, 11, 5); |
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/* SPR / TBL */
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EXTRACT_HELPER(_SPR, 11, 10); |
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static inline uint32_t SPR (uint32_t opcode) |
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{
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uint32_t sprn = _SPR(opcode); |
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return ((sprn >> 5) & 0x1F) | ((sprn & 0x1F) << 5); |
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} |
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/*** Get constants ***/
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EXTRACT_HELPER(IMM, 12, 8); |
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/* 16 bits signed immediate value */
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EXTRACT_SHELPER(SIMM, 0, 16); |
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/* 16 bits unsigned immediate value */
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EXTRACT_HELPER(UIMM, 0, 16); |
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/* Bit count */
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EXTRACT_HELPER(NB, 11, 5); |
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/* Shift count */
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EXTRACT_HELPER(SH, 11, 5); |
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/* Mask start */
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EXTRACT_HELPER(MB, 6, 5); |
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/* Mask end */
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EXTRACT_HELPER(ME, 1, 5); |
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/* Trap operand */
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EXTRACT_HELPER(TO, 21, 5); |
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EXTRACT_HELPER(CRM, 12, 8); |
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EXTRACT_HELPER(FM, 17, 8); |
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EXTRACT_HELPER(SR, 16, 4); |
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EXTRACT_HELPER(FPIMM, 20, 4); |
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/*** Jump target decoding ***/
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/* Displacement */
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EXTRACT_SHELPER(d, 0, 16); |
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/* Immediate address */
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static inline uint32_t LI (uint32_t opcode) |
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{
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return (opcode >> 0) & 0x03FFFFFC; |
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} |
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static inline uint32_t BD (uint32_t opcode) |
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{
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return (opcode >> 0) & 0xFFFC; |
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} |
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EXTRACT_HELPER(BO, 21, 5); |
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EXTRACT_HELPER(BI, 16, 5); |
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/* Absolute/relative address */
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EXTRACT_HELPER(AA, 1, 1); |
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/* Link */
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EXTRACT_HELPER(LK, 0, 1); |
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/* Create a mask between <start> and <end> bits */
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static inline uint32_t MASK (uint32_t start, uint32_t end) |
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{
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uint32_t ret; |
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ret = (((uint32_t)(-1)) >> (start)) ^ (((uint32_t)(-1) >> (end)) >> 1); |
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if (start > end)
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return ~ret;
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return ret;
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} |
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#if HOST_LONG_BITS == 64 |
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#define OPC_ALIGN 8 |
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#else
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#define OPC_ALIGN 4 |
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#endif
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#if defined(__APPLE__)
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#define OPCODES_SECTION \
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__attribute__ ((section("__TEXT,__opcodes"), unused, aligned (OPC_ALIGN) ))
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#else
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#define OPCODES_SECTION \
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__attribute__ ((section(".opcodes"), unused, aligned (OPC_ALIGN) ))
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#endif
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#define GEN_OPCODE(name, op1, op2, op3, invl, _typ) \
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OPCODES_SECTION opcode_t opc_##name = { \ |
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.opc1 = op1, \ |
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.opc2 = op2, \ |
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.opc3 = op3, \ |
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.pad = { 0, }, \
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.handler = { \
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.inval = invl, \ |
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.type = _typ, \ |
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.handler = &gen_##name, \ |
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}, \ |
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.oname = stringify(name), \ |
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} |
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#define GEN_OPCODE_MARK(name) \
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OPCODES_SECTION opcode_t opc_##name = { \ |
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.opc1 = 0xFF, \
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.opc2 = 0xFF, \
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.opc3 = 0xFF, \
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.pad = { 0, }, \
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.handler = { \
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.inval = 0x00000000, \
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.type = 0x00, \
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.handler = NULL, \
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}, \ |
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.oname = stringify(name), \ |
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} |
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|
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/* Start opcode list */
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GEN_OPCODE_MARK(start); |
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|
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/* Invalid instruction */
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GEN_HANDLER(invalid, 0x00, 0x00, 0x00, 0xFFFFFFFF, PPC_NONE) |
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{
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RET_INVAL(ctx); |
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} |
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|
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static opc_handler_t invalid_handler = {
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.inval = 0xFFFFFFFF,
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.type = PPC_NONE, |
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.handler = gen_invalid, |
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}; |
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|
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/*** Integer arithmetic ***/
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#define __GEN_INT_ARITH2(name, opc1, opc2, opc3, inval) \
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GEN_HANDLER(name, opc1, opc2, opc3, inval, PPC_INTEGER) \ |
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{ \
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gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
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gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
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gen_op_##name(); \ |
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if (Rc(ctx->opcode) != 0) \ |
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gen_op_set_Rc0(); \ |
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gen_op_store_T0_gpr(rD(ctx->opcode)); \ |
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} |
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|
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#define __GEN_INT_ARITH2_O(name, opc1, opc2, opc3, inval) \
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GEN_HANDLER(name, opc1, opc2, opc3, inval, PPC_INTEGER) \ |
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{ \
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gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 382 |
gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
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gen_op_##name(); \ |
| 384 |
if (Rc(ctx->opcode) != 0) \ |
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gen_op_set_Rc0(); \ |
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gen_op_store_T0_gpr(rD(ctx->opcode)); \ |
| 387 |
} |
| 388 |
|
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#define __GEN_INT_ARITH1(name, opc1, opc2, opc3) \
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GEN_HANDLER(name, opc1, opc2, opc3, 0x0000F800, PPC_INTEGER) \
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{ \
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gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
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gen_op_##name(); \ |
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if (Rc(ctx->opcode) != 0) \ |
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gen_op_set_Rc0(); \ |
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gen_op_store_T0_gpr(rD(ctx->opcode)); \ |
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} |
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#define __GEN_INT_ARITH1_O(name, opc1, opc2, opc3) \
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GEN_HANDLER(name, opc1, opc2, opc3, 0x0000F800, PPC_INTEGER) \
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{ \
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gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
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gen_op_##name(); \ |
| 403 |
if (Rc(ctx->opcode) != 0) \ |
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gen_op_set_Rc0(); \ |
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gen_op_store_T0_gpr(rD(ctx->opcode)); \ |
| 406 |
} |
| 407 |
|
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/* Two operands arithmetic functions */
|
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#define GEN_INT_ARITH2(name, opc1, opc2, opc3) \
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__GEN_INT_ARITH2(name, opc1, opc2, opc3, 0x00000000) \
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__GEN_INT_ARITH2_O(name##o, opc1, opc2, opc3 | 0x10, 0x00000000) |
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|
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/* Two operands arithmetic functions with no overflow allowed */
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#define GEN_INT_ARITHN(name, opc1, opc2, opc3) \
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__GEN_INT_ARITH2(name, opc1, opc2, opc3, 0x00000400)
|
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|
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/* One operand arithmetic functions */
|
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#define GEN_INT_ARITH1(name, opc1, opc2, opc3) \
|
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__GEN_INT_ARITH1(name, opc1, opc2, opc3) \ |
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__GEN_INT_ARITH1_O(name##o, opc1, opc2, opc3 | 0x10) |
| 421 |
|
| 422 |
/* add add. addo addo. */
|
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GEN_INT_ARITH2 (add, 0x1F, 0x0A, 0x08); |
| 424 |
/* addc addc. addco addco. */
|
| 425 |
GEN_INT_ARITH2 (addc, 0x1F, 0x0A, 0x00); |
| 426 |
/* adde adde. addeo addeo. */
|
| 427 |
GEN_INT_ARITH2 (adde, 0x1F, 0x0A, 0x04); |
| 428 |
/* addme addme. addmeo addmeo. */
|
| 429 |
GEN_INT_ARITH1 (addme, 0x1F, 0x0A, 0x07); |
| 430 |
/* addze addze. addzeo addzeo. */
|
| 431 |
GEN_INT_ARITH1 (addze, 0x1F, 0x0A, 0x06); |
| 432 |
/* divw divw. divwo divwo. */
|
| 433 |
GEN_INT_ARITH2 (divw, 0x1F, 0x0B, 0x0F); |
| 434 |
/* divwu divwu. divwuo divwuo. */
|
| 435 |
GEN_INT_ARITH2 (divwu, 0x1F, 0x0B, 0x0E); |
| 436 |
/* mulhw mulhw. */
|
| 437 |
GEN_INT_ARITHN (mulhw, 0x1F, 0x0B, 0x02); |
| 438 |
/* mulhwu mulhwu. */
|
| 439 |
GEN_INT_ARITHN (mulhwu, 0x1F, 0x0B, 0x00); |
| 440 |
/* mullw mullw. mullwo mullwo. */
|
| 441 |
GEN_INT_ARITH2 (mullw, 0x1F, 0x0B, 0x07); |
| 442 |
/* neg neg. nego nego. */
|
| 443 |
GEN_INT_ARITH1 (neg, 0x1F, 0x08, 0x03); |
| 444 |
/* subf subf. subfo subfo. */
|
| 445 |
GEN_INT_ARITH2 (subf, 0x1F, 0x08, 0x01); |
| 446 |
/* subfc subfc. subfco subfco. */
|
| 447 |
GEN_INT_ARITH2 (subfc, 0x1F, 0x08, 0x00); |
| 448 |
/* subfe subfe. subfeo subfeo. */
|
| 449 |
GEN_INT_ARITH2 (subfe, 0x1F, 0x08, 0x04); |
| 450 |
/* subfme subfme. subfmeo subfmeo. */
|
| 451 |
GEN_INT_ARITH1 (subfme, 0x1F, 0x08, 0x07); |
| 452 |
/* subfze subfze. subfzeo subfzeo. */
|
| 453 |
GEN_INT_ARITH1 (subfze, 0x1F, 0x08, 0x06); |
| 454 |
/* addi */
|
| 455 |
GEN_HANDLER(addi, 0x0E, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 456 |
{
|
| 457 |
int32_t simm = SIMM(ctx->opcode); |
| 458 |
|
| 459 |
if (rA(ctx->opcode) == 0) { |
| 460 |
gen_op_set_T0(simm); |
| 461 |
} else {
|
| 462 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 463 |
gen_op_addi(simm); |
| 464 |
} |
| 465 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 466 |
} |
| 467 |
/* addic */
|
| 468 |
GEN_HANDLER(addic, 0x0C, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 469 |
{
|
| 470 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 471 |
gen_op_addic(SIMM(ctx->opcode)); |
| 472 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 473 |
} |
| 474 |
/* addic. */
|
| 475 |
GEN_HANDLER(addic_, 0x0D, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 476 |
{
|
| 477 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 478 |
gen_op_addic(SIMM(ctx->opcode)); |
| 479 |
gen_op_set_Rc0(); |
| 480 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 481 |
} |
| 482 |
/* addis */
|
| 483 |
GEN_HANDLER(addis, 0x0F, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 484 |
{
|
| 485 |
int32_t simm = SIMM(ctx->opcode); |
| 486 |
|
| 487 |
if (rA(ctx->opcode) == 0) { |
| 488 |
gen_op_set_T0(simm << 16);
|
| 489 |
} else {
|
| 490 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 491 |
gen_op_addi(simm << 16);
|
| 492 |
} |
| 493 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 494 |
} |
| 495 |
/* mulli */
|
| 496 |
GEN_HANDLER(mulli, 0x07, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 497 |
{
|
| 498 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 499 |
gen_op_mulli(SIMM(ctx->opcode)); |
| 500 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 501 |
} |
| 502 |
/* subfic */
|
| 503 |
GEN_HANDLER(subfic, 0x08, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 504 |
{
|
| 505 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 506 |
gen_op_subfic(SIMM(ctx->opcode)); |
| 507 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 508 |
} |
| 509 |
|
| 510 |
/*** Integer comparison ***/
|
| 511 |
#define GEN_CMP(name, opc) \
|
| 512 |
GEN_HANDLER(name, 0x1F, 0x00, opc, 0x00400000, PPC_INTEGER) \ |
| 513 |
{ \
|
| 514 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 515 |
gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
| 516 |
gen_op_##name(); \ |
| 517 |
gen_op_store_T0_crf(crfD(ctx->opcode)); \ |
| 518 |
} |
| 519 |
|
| 520 |
/* cmp */
|
| 521 |
GEN_CMP(cmp, 0x00);
|
| 522 |
/* cmpi */
|
| 523 |
GEN_HANDLER(cmpi, 0x0B, 0xFF, 0xFF, 0x00400000, PPC_INTEGER) |
| 524 |
{
|
| 525 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 526 |
gen_op_cmpi(SIMM(ctx->opcode)); |
| 527 |
gen_op_store_T0_crf(crfD(ctx->opcode)); |
| 528 |
} |
| 529 |
/* cmpl */
|
| 530 |
GEN_CMP(cmpl, 0x01);
|
| 531 |
/* cmpli */
|
| 532 |
GEN_HANDLER(cmpli, 0x0A, 0xFF, 0xFF, 0x00400000, PPC_INTEGER) |
| 533 |
{
|
| 534 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 535 |
gen_op_cmpli(UIMM(ctx->opcode)); |
| 536 |
gen_op_store_T0_crf(crfD(ctx->opcode)); |
| 537 |
} |
| 538 |
|
| 539 |
/*** Integer logical ***/
|
| 540 |
#define __GEN_LOGICAL2(name, opc2, opc3) \
|
| 541 |
GEN_HANDLER(name, 0x1F, opc2, opc3, 0x00000000, PPC_INTEGER) \ |
| 542 |
{ \
|
| 543 |
gen_op_load_gpr_T0(rS(ctx->opcode)); \ |
| 544 |
gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
| 545 |
gen_op_##name(); \ |
| 546 |
if (Rc(ctx->opcode) != 0) \ |
| 547 |
gen_op_set_Rc0(); \ |
| 548 |
gen_op_store_T0_gpr(rA(ctx->opcode)); \ |
| 549 |
} |
| 550 |
#define GEN_LOGICAL2(name, opc) \
|
| 551 |
__GEN_LOGICAL2(name, 0x1C, opc)
|
| 552 |
|
| 553 |
#define GEN_LOGICAL1(name, opc) \
|
| 554 |
GEN_HANDLER(name, 0x1F, 0x1A, opc, 0x00000000, PPC_INTEGER) \ |
| 555 |
{ \
|
| 556 |
gen_op_load_gpr_T0(rS(ctx->opcode)); \ |
| 557 |
gen_op_##name(); \ |
| 558 |
if (Rc(ctx->opcode) != 0) \ |
| 559 |
gen_op_set_Rc0(); \ |
| 560 |
gen_op_store_T0_gpr(rA(ctx->opcode)); \ |
| 561 |
} |
| 562 |
|
| 563 |
/* and & and. */
|
| 564 |
GEN_LOGICAL2(and, 0x00);
|
| 565 |
/* andc & andc. */
|
| 566 |
GEN_LOGICAL2(andc, 0x01);
|
| 567 |
/* andi. */
|
| 568 |
GEN_HANDLER(andi_, 0x1C, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 569 |
{
|
| 570 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 571 |
gen_op_andi_(UIMM(ctx->opcode)); |
| 572 |
gen_op_set_Rc0(); |
| 573 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 574 |
} |
| 575 |
/* andis. */
|
| 576 |
GEN_HANDLER(andis_, 0x1D, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 577 |
{
|
| 578 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 579 |
gen_op_andi_(UIMM(ctx->opcode) << 16);
|
| 580 |
gen_op_set_Rc0(); |
| 581 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 582 |
} |
| 583 |
|
| 584 |
/* cntlzw */
|
| 585 |
GEN_LOGICAL1(cntlzw, 0x00);
|
| 586 |
/* eqv & eqv. */
|
| 587 |
GEN_LOGICAL2(eqv, 0x08);
|
| 588 |
/* extsb & extsb. */
|
| 589 |
GEN_LOGICAL1(extsb, 0x1D);
|
| 590 |
/* extsh & extsh. */
|
| 591 |
GEN_LOGICAL1(extsh, 0x1C);
|
| 592 |
/* nand & nand. */
|
| 593 |
GEN_LOGICAL2(nand, 0x0E);
|
| 594 |
/* nor & nor. */
|
| 595 |
GEN_LOGICAL2(nor, 0x03);
|
| 596 |
|
| 597 |
/* or & or. */
|
| 598 |
GEN_HANDLER(or, 0x1F, 0x1C, 0x0D, 0x00000000, PPC_INTEGER) |
| 599 |
{
|
| 600 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 601 |
/* Optimisation for mr case */
|
| 602 |
if (rS(ctx->opcode) != rB(ctx->opcode)) {
|
| 603 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 604 |
gen_op_or(); |
| 605 |
} |
| 606 |
if (Rc(ctx->opcode) != 0) |
| 607 |
gen_op_set_Rc0(); |
| 608 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 609 |
} |
| 610 |
|
| 611 |
/* orc & orc. */
|
| 612 |
GEN_LOGICAL2(orc, 0x0C);
|
| 613 |
/* xor & xor. */
|
| 614 |
GEN_HANDLER(xor, 0x1F, 0x1C, 0x09, 0x00000000, PPC_INTEGER) |
| 615 |
{
|
| 616 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 617 |
/* Optimisation for "set to zero" case */
|
| 618 |
if (rS(ctx->opcode) != rB(ctx->opcode)) {
|
| 619 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 620 |
gen_op_xor(); |
| 621 |
} else {
|
| 622 |
gen_op_set_T0(0);
|
| 623 |
} |
| 624 |
if (Rc(ctx->opcode) != 0) |
| 625 |
gen_op_set_Rc0(); |
| 626 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 627 |
} |
| 628 |
/* ori */
|
| 629 |
GEN_HANDLER(ori, 0x18, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 630 |
{
|
| 631 |
uint32_t uimm = UIMM(ctx->opcode); |
| 632 |
|
| 633 |
if (rS(ctx->opcode) == rA(ctx->opcode) && uimm == 0) { |
| 634 |
/* NOP */
|
| 635 |
return;
|
| 636 |
} |
| 637 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 638 |
if (uimm != 0) |
| 639 |
gen_op_ori(uimm); |
| 640 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 641 |
} |
| 642 |
/* oris */
|
| 643 |
GEN_HANDLER(oris, 0x19, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 644 |
{
|
| 645 |
uint32_t uimm = UIMM(ctx->opcode); |
| 646 |
|
| 647 |
if (rS(ctx->opcode) == rA(ctx->opcode) && uimm == 0) { |
| 648 |
/* NOP */
|
| 649 |
return;
|
| 650 |
} |
| 651 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 652 |
if (uimm != 0) |
| 653 |
gen_op_ori(uimm << 16);
|
| 654 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 655 |
} |
| 656 |
/* xori */
|
| 657 |
GEN_HANDLER(xori, 0x1A, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 658 |
{
|
| 659 |
uint32_t uimm = UIMM(ctx->opcode); |
| 660 |
|
| 661 |
if (rS(ctx->opcode) == rA(ctx->opcode) && uimm == 0) { |
| 662 |
/* NOP */
|
| 663 |
return;
|
| 664 |
} |
| 665 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 666 |
if (uimm != 0) |
| 667 |
gen_op_xori(uimm); |
| 668 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 669 |
} |
| 670 |
|
| 671 |
/* xoris */
|
| 672 |
GEN_HANDLER(xoris, 0x1B, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 673 |
{
|
| 674 |
uint32_t uimm = UIMM(ctx->opcode); |
| 675 |
|
| 676 |
if (rS(ctx->opcode) == rA(ctx->opcode) && uimm == 0) { |
| 677 |
/* NOP */
|
| 678 |
return;
|
| 679 |
} |
| 680 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 681 |
if (uimm != 0) |
| 682 |
gen_op_xori(uimm << 16);
|
| 683 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 684 |
} |
| 685 |
|
| 686 |
/*** Integer rotate ***/
|
| 687 |
/* rlwimi & rlwimi. */
|
| 688 |
GEN_HANDLER(rlwimi, 0x14, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 689 |
{
|
| 690 |
uint32_t mb, me; |
| 691 |
|
| 692 |
mb = MB(ctx->opcode); |
| 693 |
me = ME(ctx->opcode); |
| 694 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 695 |
gen_op_load_gpr_T1(rA(ctx->opcode)); |
| 696 |
gen_op_rlwimi(SH(ctx->opcode), MASK(mb, me), ~MASK(mb, me)); |
| 697 |
if (Rc(ctx->opcode) != 0) |
| 698 |
gen_op_set_Rc0(); |
| 699 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 700 |
} |
| 701 |
/* rlwinm & rlwinm. */
|
| 702 |
GEN_HANDLER(rlwinm, 0x15, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 703 |
{
|
| 704 |
uint32_t mb, me, sh; |
| 705 |
|
| 706 |
sh = SH(ctx->opcode); |
| 707 |
mb = MB(ctx->opcode); |
| 708 |
me = ME(ctx->opcode); |
| 709 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 710 |
#if 1 // TRY |
| 711 |
if (sh == 0) { |
| 712 |
gen_op_andi_(MASK(mb, me)); |
| 713 |
goto store;
|
| 714 |
} |
| 715 |
#endif
|
| 716 |
if (mb == 0) { |
| 717 |
if (me == 31) { |
| 718 |
gen_op_rotlwi(sh); |
| 719 |
goto store;
|
| 720 |
#if 0
|
| 721 |
} else if (me == (31 - sh)) {
|
| 722 |
gen_op_slwi(sh);
|
| 723 |
goto store;
|
| 724 |
#endif
|
| 725 |
} |
| 726 |
} else if (me == 31) { |
| 727 |
#if 0
|
| 728 |
if (sh == (32 - mb)) {
|
| 729 |
gen_op_srwi(mb);
|
| 730 |
goto store;
|
| 731 |
}
|
| 732 |
#endif
|
| 733 |
} |
| 734 |
gen_op_rlwinm(sh, MASK(mb, me)); |
| 735 |
store:
|
| 736 |
if (Rc(ctx->opcode) != 0) |
| 737 |
gen_op_set_Rc0(); |
| 738 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 739 |
} |
| 740 |
/* rlwnm & rlwnm. */
|
| 741 |
GEN_HANDLER(rlwnm, 0x17, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 742 |
{
|
| 743 |
uint32_t mb, me; |
| 744 |
|
| 745 |
mb = MB(ctx->opcode); |
| 746 |
me = ME(ctx->opcode); |
| 747 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 748 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 749 |
if (mb == 0 && me == 31) { |
| 750 |
gen_op_rotl(); |
| 751 |
} else
|
| 752 |
{
|
| 753 |
gen_op_rlwnm(MASK(mb, me)); |
| 754 |
} |
| 755 |
if (Rc(ctx->opcode) != 0) |
| 756 |
gen_op_set_Rc0(); |
| 757 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 758 |
} |
| 759 |
|
| 760 |
/*** Integer shift ***/
|
| 761 |
/* slw & slw. */
|
| 762 |
__GEN_LOGICAL2(slw, 0x18, 0x00); |
| 763 |
/* sraw & sraw. */
|
| 764 |
__GEN_LOGICAL2(sraw, 0x18, 0x18); |
| 765 |
/* srawi & srawi. */
|
| 766 |
GEN_HANDLER(srawi, 0x1F, 0x18, 0x19, 0x00000000, PPC_INTEGER) |
| 767 |
{
|
| 768 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 769 |
if (SH(ctx->opcode) != 0) |
| 770 |
gen_op_srawi(SH(ctx->opcode), MASK(32 - SH(ctx->opcode), 31)); |
| 771 |
if (Rc(ctx->opcode) != 0) |
| 772 |
gen_op_set_Rc0(); |
| 773 |
gen_op_store_T0_gpr(rA(ctx->opcode)); |
| 774 |
} |
| 775 |
/* srw & srw. */
|
| 776 |
__GEN_LOGICAL2(srw, 0x18, 0x10); |
| 777 |
|
| 778 |
/*** Floating-Point arithmetic ***/
|
| 779 |
#define _GEN_FLOAT_ACB(name, op, op1, op2, isfloat) \
|
| 780 |
GEN_HANDLER(f##name, op1, op2, 0xFF, 0x00000000, PPC_FLOAT) \ |
| 781 |
{ \
|
| 782 |
if (!ctx->fpu_enabled) { \
|
| 783 |
RET_EXCP(ctx, EXCP_NO_FP, 0); \
|
| 784 |
return; \
|
| 785 |
} \ |
| 786 |
gen_op_reset_scrfx(); \ |
| 787 |
gen_op_load_fpr_FT0(rA(ctx->opcode)); \ |
| 788 |
gen_op_load_fpr_FT1(rC(ctx->opcode)); \ |
| 789 |
gen_op_load_fpr_FT2(rB(ctx->opcode)); \ |
| 790 |
gen_op_f##op(); \ |
| 791 |
if (isfloat) { \
|
| 792 |
gen_op_frsp(); \ |
| 793 |
} \ |
| 794 |
gen_op_store_FT0_fpr(rD(ctx->opcode)); \ |
| 795 |
if (Rc(ctx->opcode)) \
|
| 796 |
gen_op_set_Rc1(); \ |
| 797 |
} |
| 798 |
|
| 799 |
#define GEN_FLOAT_ACB(name, op2) \
|
| 800 |
_GEN_FLOAT_ACB(name, name, 0x3F, op2, 0); \ |
| 801 |
_GEN_FLOAT_ACB(name##s, name, 0x3B, op2, 1); |
| 802 |
|
| 803 |
#define _GEN_FLOAT_AB(name, op, op1, op2, inval, isfloat) \
|
| 804 |
GEN_HANDLER(f##name, op1, op2, 0xFF, inval, PPC_FLOAT) \ |
| 805 |
{ \
|
| 806 |
if (!ctx->fpu_enabled) { \
|
| 807 |
RET_EXCP(ctx, EXCP_NO_FP, 0); \
|
| 808 |
return; \
|
| 809 |
} \ |
| 810 |
gen_op_reset_scrfx(); \ |
| 811 |
gen_op_load_fpr_FT0(rA(ctx->opcode)); \ |
| 812 |
gen_op_load_fpr_FT1(rB(ctx->opcode)); \ |
| 813 |
gen_op_f##op(); \ |
| 814 |
if (isfloat) { \
|
| 815 |
gen_op_frsp(); \ |
| 816 |
} \ |
| 817 |
gen_op_store_FT0_fpr(rD(ctx->opcode)); \ |
| 818 |
if (Rc(ctx->opcode)) \
|
| 819 |
gen_op_set_Rc1(); \ |
| 820 |
} |
| 821 |
#define GEN_FLOAT_AB(name, op2, inval) \
|
| 822 |
_GEN_FLOAT_AB(name, name, 0x3F, op2, inval, 0); \ |
| 823 |
_GEN_FLOAT_AB(name##s, name, 0x3B, op2, inval, 1); |
| 824 |
|
| 825 |
#define _GEN_FLOAT_AC(name, op, op1, op2, inval, isfloat) \
|
| 826 |
GEN_HANDLER(f##name, op1, op2, 0xFF, inval, PPC_FLOAT) \ |
| 827 |
{ \
|
| 828 |
if (!ctx->fpu_enabled) { \
|
| 829 |
RET_EXCP(ctx, EXCP_NO_FP, 0); \
|
| 830 |
return; \
|
| 831 |
} \ |
| 832 |
gen_op_reset_scrfx(); \ |
| 833 |
gen_op_load_fpr_FT0(rA(ctx->opcode)); \ |
| 834 |
gen_op_load_fpr_FT1(rC(ctx->opcode)); \ |
| 835 |
gen_op_f##op(); \ |
| 836 |
if (isfloat) { \
|
| 837 |
gen_op_frsp(); \ |
| 838 |
} \ |
| 839 |
gen_op_store_FT0_fpr(rD(ctx->opcode)); \ |
| 840 |
if (Rc(ctx->opcode)) \
|
| 841 |
gen_op_set_Rc1(); \ |
| 842 |
} |
| 843 |
#define GEN_FLOAT_AC(name, op2, inval) \
|
| 844 |
_GEN_FLOAT_AC(name, name, 0x3F, op2, inval, 0); \ |
| 845 |
_GEN_FLOAT_AC(name##s, name, 0x3B, op2, inval, 1); |
| 846 |
|
| 847 |
#define GEN_FLOAT_B(name, op2, op3) \
|
| 848 |
GEN_HANDLER(f##name, 0x3F, op2, op3, 0x001F0000, PPC_FLOAT) \ |
| 849 |
{ \
|
| 850 |
if (!ctx->fpu_enabled) { \
|
| 851 |
RET_EXCP(ctx, EXCP_NO_FP, 0); \
|
| 852 |
return; \
|
| 853 |
} \ |
| 854 |
gen_op_reset_scrfx(); \ |
| 855 |
gen_op_load_fpr_FT0(rB(ctx->opcode)); \ |
| 856 |
gen_op_f##name(); \ |
| 857 |
gen_op_store_FT0_fpr(rD(ctx->opcode)); \ |
| 858 |
if (Rc(ctx->opcode)) \
|
| 859 |
gen_op_set_Rc1(); \ |
| 860 |
} |
| 861 |
|
| 862 |
#define GEN_FLOAT_BS(name, op1, op2) \
|
| 863 |
GEN_HANDLER(f##name, op1, op2, 0xFF, 0x001F07C0, PPC_FLOAT) \ |
| 864 |
{ \
|
| 865 |
if (!ctx->fpu_enabled) { \
|
| 866 |
RET_EXCP(ctx, EXCP_NO_FP, 0); \
|
| 867 |
return; \
|
| 868 |
} \ |
| 869 |
gen_op_reset_scrfx(); \ |
| 870 |
gen_op_load_fpr_FT0(rB(ctx->opcode)); \ |
| 871 |
gen_op_f##name(); \ |
| 872 |
gen_op_store_FT0_fpr(rD(ctx->opcode)); \ |
| 873 |
if (Rc(ctx->opcode)) \
|
| 874 |
gen_op_set_Rc1(); \ |
| 875 |
} |
| 876 |
|
| 877 |
/* fadd - fadds */
|
| 878 |
GEN_FLOAT_AB(add, 0x15, 0x000007C0); |
| 879 |
/* fdiv - fdivs */
|
| 880 |
GEN_FLOAT_AB(div, 0x12, 0x000007C0); |
| 881 |
/* fmul - fmuls */
|
| 882 |
GEN_FLOAT_AC(mul, 0x19, 0x0000F800); |
| 883 |
|
| 884 |
/* fres */
|
| 885 |
GEN_FLOAT_BS(res, 0x3B, 0x18); |
| 886 |
|
| 887 |
/* frsqrte */
|
| 888 |
GEN_FLOAT_BS(rsqrte, 0x3F, 0x1A); |
| 889 |
|
| 890 |
/* fsel */
|
| 891 |
_GEN_FLOAT_ACB(sel, sel, 0x3F, 0x17, 0); |
| 892 |
/* fsub - fsubs */
|
| 893 |
GEN_FLOAT_AB(sub, 0x14, 0x000007C0); |
| 894 |
/* Optional: */
|
| 895 |
/* fsqrt */
|
| 896 |
GEN_HANDLER(fsqrt, 0x3F, 0x16, 0xFF, 0x001F07C0, PPC_FLOAT_OPT) |
| 897 |
{
|
| 898 |
if (!ctx->fpu_enabled) {
|
| 899 |
RET_EXCP(ctx, EXCP_NO_FP, 0);
|
| 900 |
return;
|
| 901 |
} |
| 902 |
gen_op_reset_scrfx(); |
| 903 |
gen_op_load_fpr_FT0(rB(ctx->opcode)); |
| 904 |
gen_op_fsqrt(); |
| 905 |
gen_op_store_FT0_fpr(rD(ctx->opcode)); |
| 906 |
if (Rc(ctx->opcode))
|
| 907 |
gen_op_set_Rc1(); |
| 908 |
} |
| 909 |
|
| 910 |
GEN_HANDLER(fsqrts, 0x3B, 0x16, 0xFF, 0x001F07C0, PPC_FLOAT_OPT) |
| 911 |
{
|
| 912 |
if (!ctx->fpu_enabled) {
|
| 913 |
RET_EXCP(ctx, EXCP_NO_FP, 0);
|
| 914 |
return;
|
| 915 |
} |
| 916 |
gen_op_reset_scrfx(); |
| 917 |
gen_op_load_fpr_FT0(rB(ctx->opcode)); |
| 918 |
gen_op_fsqrt(); |
| 919 |
gen_op_frsp(); |
| 920 |
gen_op_store_FT0_fpr(rD(ctx->opcode)); |
| 921 |
if (Rc(ctx->opcode))
|
| 922 |
gen_op_set_Rc1(); |
| 923 |
} |
| 924 |
|
| 925 |
/*** Floating-Point multiply-and-add ***/
|
| 926 |
/* fmadd - fmadds */
|
| 927 |
GEN_FLOAT_ACB(madd, 0x1D);
|
| 928 |
/* fmsub - fmsubs */
|
| 929 |
GEN_FLOAT_ACB(msub, 0x1C);
|
| 930 |
/* fnmadd - fnmadds */
|
| 931 |
GEN_FLOAT_ACB(nmadd, 0x1F);
|
| 932 |
/* fnmsub - fnmsubs */
|
| 933 |
GEN_FLOAT_ACB(nmsub, 0x1E);
|
| 934 |
|
| 935 |
/*** Floating-Point round & convert ***/
|
| 936 |
/* fctiw */
|
| 937 |
GEN_FLOAT_B(ctiw, 0x0E, 0x00); |
| 938 |
/* fctiwz */
|
| 939 |
GEN_FLOAT_B(ctiwz, 0x0F, 0x00); |
| 940 |
/* frsp */
|
| 941 |
GEN_FLOAT_B(rsp, 0x0C, 0x00); |
| 942 |
|
| 943 |
/*** Floating-Point compare ***/
|
| 944 |
/* fcmpo */
|
| 945 |
GEN_HANDLER(fcmpo, 0x3F, 0x00, 0x00, 0x00600001, PPC_FLOAT) |
| 946 |
{
|
| 947 |
if (!ctx->fpu_enabled) {
|
| 948 |
RET_EXCP(ctx, EXCP_NO_FP, 0);
|
| 949 |
return;
|
| 950 |
} |
| 951 |
gen_op_reset_scrfx(); |
| 952 |
gen_op_load_fpr_FT0(rA(ctx->opcode)); |
| 953 |
gen_op_load_fpr_FT1(rB(ctx->opcode)); |
| 954 |
gen_op_fcmpo(); |
| 955 |
gen_op_store_T0_crf(crfD(ctx->opcode)); |
| 956 |
} |
| 957 |
|
| 958 |
/* fcmpu */
|
| 959 |
GEN_HANDLER(fcmpu, 0x3F, 0x00, 0x01, 0x00600001, PPC_FLOAT) |
| 960 |
{
|
| 961 |
if (!ctx->fpu_enabled) {
|
| 962 |
RET_EXCP(ctx, EXCP_NO_FP, 0);
|
| 963 |
return;
|
| 964 |
} |
| 965 |
gen_op_reset_scrfx(); |
| 966 |
gen_op_load_fpr_FT0(rA(ctx->opcode)); |
| 967 |
gen_op_load_fpr_FT1(rB(ctx->opcode)); |
| 968 |
gen_op_fcmpu(); |
| 969 |
gen_op_store_T0_crf(crfD(ctx->opcode)); |
| 970 |
} |
| 971 |
|
| 972 |
/*** Floating-point move ***/
|
| 973 |
/* fabs */
|
| 974 |
GEN_FLOAT_B(abs, 0x08, 0x08); |
| 975 |
|
| 976 |
/* fmr - fmr. */
|
| 977 |
GEN_HANDLER(fmr, 0x3F, 0x08, 0x02, 0x001F0000, PPC_FLOAT) |
| 978 |
{
|
| 979 |
if (!ctx->fpu_enabled) {
|
| 980 |
RET_EXCP(ctx, EXCP_NO_FP, 0);
|
| 981 |
return;
|
| 982 |
} |
| 983 |
gen_op_reset_scrfx(); |
| 984 |
gen_op_load_fpr_FT0(rB(ctx->opcode)); |
| 985 |
gen_op_store_FT0_fpr(rD(ctx->opcode)); |
| 986 |
if (Rc(ctx->opcode))
|
| 987 |
gen_op_set_Rc1(); |
| 988 |
} |
| 989 |
|
| 990 |
/* fnabs */
|
| 991 |
GEN_FLOAT_B(nabs, 0x08, 0x04); |
| 992 |
/* fneg */
|
| 993 |
GEN_FLOAT_B(neg, 0x08, 0x01); |
| 994 |
|
| 995 |
/*** Floating-Point status & ctrl register ***/
|
| 996 |
/* mcrfs */
|
| 997 |
GEN_HANDLER(mcrfs, 0x3F, 0x00, 0x02, 0x0063F801, PPC_FLOAT) |
| 998 |
{
|
| 999 |
if (!ctx->fpu_enabled) {
|
| 1000 |
RET_EXCP(ctx, EXCP_NO_FP, 0);
|
| 1001 |
return;
|
| 1002 |
} |
| 1003 |
gen_op_load_fpscr_T0(crfS(ctx->opcode)); |
| 1004 |
gen_op_store_T0_crf(crfD(ctx->opcode)); |
| 1005 |
gen_op_clear_fpscr(crfS(ctx->opcode)); |
| 1006 |
} |
| 1007 |
|
| 1008 |
/* mffs */
|
| 1009 |
GEN_HANDLER(mffs, 0x3F, 0x07, 0x12, 0x001FF800, PPC_FLOAT) |
| 1010 |
{
|
| 1011 |
if (!ctx->fpu_enabled) {
|
| 1012 |
RET_EXCP(ctx, EXCP_NO_FP, 0);
|
| 1013 |
return;
|
| 1014 |
} |
| 1015 |
gen_op_load_fpscr(); |
| 1016 |
gen_op_store_FT0_fpr(rD(ctx->opcode)); |
| 1017 |
if (Rc(ctx->opcode))
|
| 1018 |
gen_op_set_Rc1(); |
| 1019 |
} |
| 1020 |
|
| 1021 |
/* mtfsb0 */
|
| 1022 |
GEN_HANDLER(mtfsb0, 0x3F, 0x06, 0x02, 0x001FF800, PPC_FLOAT) |
| 1023 |
{
|
| 1024 |
uint8_t crb; |
| 1025 |
|
| 1026 |
if (!ctx->fpu_enabled) {
|
| 1027 |
RET_EXCP(ctx, EXCP_NO_FP, 0);
|
| 1028 |
return;
|
| 1029 |
} |
| 1030 |
crb = crbD(ctx->opcode) >> 2;
|
| 1031 |
gen_op_load_fpscr_T0(crb); |
| 1032 |
gen_op_andi_(~(1 << (crbD(ctx->opcode) & 0x03))); |
| 1033 |
gen_op_store_T0_fpscr(crb); |
| 1034 |
if (Rc(ctx->opcode))
|
| 1035 |
gen_op_set_Rc1(); |
| 1036 |
} |
| 1037 |
|
| 1038 |
/* mtfsb1 */
|
| 1039 |
GEN_HANDLER(mtfsb1, 0x3F, 0x06, 0x01, 0x001FF800, PPC_FLOAT) |
| 1040 |
{
|
| 1041 |
uint8_t crb; |
| 1042 |
|
| 1043 |
if (!ctx->fpu_enabled) {
|
| 1044 |
RET_EXCP(ctx, EXCP_NO_FP, 0);
|
| 1045 |
return;
|
| 1046 |
} |
| 1047 |
crb = crbD(ctx->opcode) >> 2;
|
| 1048 |
gen_op_load_fpscr_T0(crb); |
| 1049 |
gen_op_ori(1 << (crbD(ctx->opcode) & 0x03)); |
| 1050 |
gen_op_store_T0_fpscr(crb); |
| 1051 |
if (Rc(ctx->opcode))
|
| 1052 |
gen_op_set_Rc1(); |
| 1053 |
} |
| 1054 |
|
| 1055 |
/* mtfsf */
|
| 1056 |
GEN_HANDLER(mtfsf, 0x3F, 0x07, 0x16, 0x02010000, PPC_FLOAT) |
| 1057 |
{
|
| 1058 |
if (!ctx->fpu_enabled) {
|
| 1059 |
RET_EXCP(ctx, EXCP_NO_FP, 0);
|
| 1060 |
return;
|
| 1061 |
} |
| 1062 |
gen_op_load_fpr_FT0(rB(ctx->opcode)); |
| 1063 |
gen_op_store_fpscr(FM(ctx->opcode)); |
| 1064 |
if (Rc(ctx->opcode))
|
| 1065 |
gen_op_set_Rc1(); |
| 1066 |
} |
| 1067 |
|
| 1068 |
/* mtfsfi */
|
| 1069 |
GEN_HANDLER(mtfsfi, 0x3F, 0x06, 0x04, 0x006f0800, PPC_FLOAT) |
| 1070 |
{
|
| 1071 |
if (!ctx->fpu_enabled) {
|
| 1072 |
RET_EXCP(ctx, EXCP_NO_FP, 0);
|
| 1073 |
return;
|
| 1074 |
} |
| 1075 |
gen_op_store_T0_fpscri(crbD(ctx->opcode) >> 2, FPIMM(ctx->opcode));
|
| 1076 |
if (Rc(ctx->opcode))
|
| 1077 |
gen_op_set_Rc1(); |
| 1078 |
} |
| 1079 |
|
| 1080 |
/*** Integer load ***/
|
| 1081 |
#define op_ldst(name) (*gen_op_##name[ctx->mem_idx])() |
| 1082 |
#if defined(CONFIG_USER_ONLY)
|
| 1083 |
#define OP_LD_TABLE(width) \
|
| 1084 |
static GenOpFunc *gen_op_l##width[] = { \ |
| 1085 |
&gen_op_l##width##_raw, \ |
| 1086 |
&gen_op_l##width##_le_raw, \ |
| 1087 |
}; |
| 1088 |
#define OP_ST_TABLE(width) \
|
| 1089 |
static GenOpFunc *gen_op_st##width[] = { \ |
| 1090 |
&gen_op_st##width##_raw, \ |
| 1091 |
&gen_op_st##width##_le_raw, \ |
| 1092 |
}; |
| 1093 |
/* Byte access routine are endian safe */
|
| 1094 |
#define gen_op_stb_le_raw gen_op_stb_raw
|
| 1095 |
#define gen_op_lbz_le_raw gen_op_lbz_raw
|
| 1096 |
#else
|
| 1097 |
#define OP_LD_TABLE(width) \
|
| 1098 |
static GenOpFunc *gen_op_l##width[] = { \ |
| 1099 |
&gen_op_l##width##_user, \ |
| 1100 |
&gen_op_l##width##_le_user, \ |
| 1101 |
&gen_op_l##width##_kernel, \ |
| 1102 |
&gen_op_l##width##_le_kernel, \ |
| 1103 |
}; |
| 1104 |
#define OP_ST_TABLE(width) \
|
| 1105 |
static GenOpFunc *gen_op_st##width[] = { \ |
| 1106 |
&gen_op_st##width##_user, \ |
| 1107 |
&gen_op_st##width##_le_user, \ |
| 1108 |
&gen_op_st##width##_kernel, \ |
| 1109 |
&gen_op_st##width##_le_kernel, \ |
| 1110 |
}; |
| 1111 |
/* Byte access routine are endian safe */
|
| 1112 |
#define gen_op_stb_le_user gen_op_stb_user
|
| 1113 |
#define gen_op_lbz_le_user gen_op_lbz_user
|
| 1114 |
#define gen_op_stb_le_kernel gen_op_stb_kernel
|
| 1115 |
#define gen_op_lbz_le_kernel gen_op_lbz_kernel
|
| 1116 |
#endif
|
| 1117 |
|
| 1118 |
#define GEN_LD(width, opc) \
|
| 1119 |
GEN_HANDLER(l##width, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \ |
| 1120 |
{ \
|
| 1121 |
uint32_t simm = SIMM(ctx->opcode); \ |
| 1122 |
if (rA(ctx->opcode) == 0) { \ |
| 1123 |
gen_op_set_T0(simm); \ |
| 1124 |
} else { \
|
| 1125 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1126 |
if (simm != 0) \ |
| 1127 |
gen_op_addi(simm); \ |
| 1128 |
} \ |
| 1129 |
op_ldst(l##width); \ |
| 1130 |
gen_op_store_T1_gpr(rD(ctx->opcode)); \ |
| 1131 |
} |
| 1132 |
|
| 1133 |
#define GEN_LDU(width, opc) \
|
| 1134 |
GEN_HANDLER(l##width##u, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \ |
| 1135 |
{ \
|
| 1136 |
uint32_t simm = SIMM(ctx->opcode); \ |
| 1137 |
if (rA(ctx->opcode) == 0 || \ |
| 1138 |
rA(ctx->opcode) == rD(ctx->opcode)) { \
|
| 1139 |
RET_INVAL(ctx); \ |
| 1140 |
return; \
|
| 1141 |
} \ |
| 1142 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1143 |
if (simm != 0) \ |
| 1144 |
gen_op_addi(simm); \ |
| 1145 |
op_ldst(l##width); \ |
| 1146 |
gen_op_store_T1_gpr(rD(ctx->opcode)); \ |
| 1147 |
gen_op_store_T0_gpr(rA(ctx->opcode)); \ |
| 1148 |
} |
| 1149 |
|
| 1150 |
#define GEN_LDUX(width, opc) \
|
| 1151 |
GEN_HANDLER(l##width##ux, 0x1F, 0x17, opc, 0x00000001, PPC_INTEGER) \ |
| 1152 |
{ \
|
| 1153 |
if (rA(ctx->opcode) == 0 || \ |
| 1154 |
rA(ctx->opcode) == rD(ctx->opcode)) { \
|
| 1155 |
RET_INVAL(ctx); \ |
| 1156 |
return; \
|
| 1157 |
} \ |
| 1158 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1159 |
gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
| 1160 |
gen_op_add(); \ |
| 1161 |
op_ldst(l##width); \ |
| 1162 |
gen_op_store_T1_gpr(rD(ctx->opcode)); \ |
| 1163 |
gen_op_store_T0_gpr(rA(ctx->opcode)); \ |
| 1164 |
} |
| 1165 |
|
| 1166 |
#define GEN_LDX(width, opc2, opc3) \
|
| 1167 |
GEN_HANDLER(l##width##x, 0x1F, opc2, opc3, 0x00000001, PPC_INTEGER) \ |
| 1168 |
{ \
|
| 1169 |
if (rA(ctx->opcode) == 0) { \ |
| 1170 |
gen_op_load_gpr_T0(rB(ctx->opcode)); \ |
| 1171 |
} else { \
|
| 1172 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1173 |
gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
| 1174 |
gen_op_add(); \ |
| 1175 |
} \ |
| 1176 |
op_ldst(l##width); \ |
| 1177 |
gen_op_store_T1_gpr(rD(ctx->opcode)); \ |
| 1178 |
} |
| 1179 |
|
| 1180 |
#define GEN_LDS(width, op) \
|
| 1181 |
OP_LD_TABLE(width); \ |
| 1182 |
GEN_LD(width, op | 0x20); \
|
| 1183 |
GEN_LDU(width, op | 0x21); \
|
| 1184 |
GEN_LDUX(width, op | 0x01); \
|
| 1185 |
GEN_LDX(width, 0x17, op | 0x00) |
| 1186 |
|
| 1187 |
/* lbz lbzu lbzux lbzx */
|
| 1188 |
GEN_LDS(bz, 0x02);
|
| 1189 |
/* lha lhau lhaux lhax */
|
| 1190 |
GEN_LDS(ha, 0x0A);
|
| 1191 |
/* lhz lhzu lhzux lhzx */
|
| 1192 |
GEN_LDS(hz, 0x08);
|
| 1193 |
/* lwz lwzu lwzux lwzx */
|
| 1194 |
GEN_LDS(wz, 0x00);
|
| 1195 |
|
| 1196 |
/*** Integer store ***/
|
| 1197 |
#define GEN_ST(width, opc) \
|
| 1198 |
GEN_HANDLER(st##width, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \ |
| 1199 |
{ \
|
| 1200 |
uint32_t simm = SIMM(ctx->opcode); \ |
| 1201 |
if (rA(ctx->opcode) == 0) { \ |
| 1202 |
gen_op_set_T0(simm); \ |
| 1203 |
} else { \
|
| 1204 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1205 |
if (simm != 0) \ |
| 1206 |
gen_op_addi(simm); \ |
| 1207 |
} \ |
| 1208 |
gen_op_load_gpr_T1(rS(ctx->opcode)); \ |
| 1209 |
op_ldst(st##width); \ |
| 1210 |
} |
| 1211 |
|
| 1212 |
#define GEN_STU(width, opc) \
|
| 1213 |
GEN_HANDLER(st##width##u, opc, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) \ |
| 1214 |
{ \
|
| 1215 |
uint32_t simm = SIMM(ctx->opcode); \ |
| 1216 |
if (rA(ctx->opcode) == 0) { \ |
| 1217 |
RET_INVAL(ctx); \ |
| 1218 |
return; \
|
| 1219 |
} \ |
| 1220 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1221 |
if (simm != 0) \ |
| 1222 |
gen_op_addi(simm); \ |
| 1223 |
gen_op_load_gpr_T1(rS(ctx->opcode)); \ |
| 1224 |
op_ldst(st##width); \ |
| 1225 |
gen_op_store_T0_gpr(rA(ctx->opcode)); \ |
| 1226 |
} |
| 1227 |
|
| 1228 |
#define GEN_STUX(width, opc) \
|
| 1229 |
GEN_HANDLER(st##width##ux, 0x1F, 0x17, opc, 0x00000001, PPC_INTEGER) \ |
| 1230 |
{ \
|
| 1231 |
if (rA(ctx->opcode) == 0) { \ |
| 1232 |
RET_INVAL(ctx); \ |
| 1233 |
return; \
|
| 1234 |
} \ |
| 1235 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1236 |
gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
| 1237 |
gen_op_add(); \ |
| 1238 |
gen_op_load_gpr_T1(rS(ctx->opcode)); \ |
| 1239 |
op_ldst(st##width); \ |
| 1240 |
gen_op_store_T0_gpr(rA(ctx->opcode)); \ |
| 1241 |
} |
| 1242 |
|
| 1243 |
#define GEN_STX(width, opc2, opc3) \
|
| 1244 |
GEN_HANDLER(st##width##x, 0x1F, opc2, opc3, 0x00000001, PPC_INTEGER) \ |
| 1245 |
{ \
|
| 1246 |
if (rA(ctx->opcode) == 0) { \ |
| 1247 |
gen_op_load_gpr_T0(rB(ctx->opcode)); \ |
| 1248 |
} else { \
|
| 1249 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1250 |
gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
| 1251 |
gen_op_add(); \ |
| 1252 |
} \ |
| 1253 |
gen_op_load_gpr_T1(rS(ctx->opcode)); \ |
| 1254 |
op_ldst(st##width); \ |
| 1255 |
} |
| 1256 |
|
| 1257 |
#define GEN_STS(width, op) \
|
| 1258 |
OP_ST_TABLE(width); \ |
| 1259 |
GEN_ST(width, op | 0x20); \
|
| 1260 |
GEN_STU(width, op | 0x21); \
|
| 1261 |
GEN_STUX(width, op | 0x01); \
|
| 1262 |
GEN_STX(width, 0x17, op | 0x00) |
| 1263 |
|
| 1264 |
/* stb stbu stbux stbx */
|
| 1265 |
GEN_STS(b, 0x06);
|
| 1266 |
/* sth sthu sthux sthx */
|
| 1267 |
GEN_STS(h, 0x0C);
|
| 1268 |
/* stw stwu stwux stwx */
|
| 1269 |
GEN_STS(w, 0x04);
|
| 1270 |
|
| 1271 |
/*** Integer load and store with byte reverse ***/
|
| 1272 |
/* lhbrx */
|
| 1273 |
OP_LD_TABLE(hbr); |
| 1274 |
GEN_LDX(hbr, 0x16, 0x18); |
| 1275 |
/* lwbrx */
|
| 1276 |
OP_LD_TABLE(wbr); |
| 1277 |
GEN_LDX(wbr, 0x16, 0x10); |
| 1278 |
/* sthbrx */
|
| 1279 |
OP_ST_TABLE(hbr); |
| 1280 |
GEN_STX(hbr, 0x16, 0x1C); |
| 1281 |
/* stwbrx */
|
| 1282 |
OP_ST_TABLE(wbr); |
| 1283 |
GEN_STX(wbr, 0x16, 0x14); |
| 1284 |
|
| 1285 |
/*** Integer load and store multiple ***/
|
| 1286 |
#define op_ldstm(name, reg) (*gen_op_##name[ctx->mem_idx])(reg) |
| 1287 |
#if defined(CONFIG_USER_ONLY)
|
| 1288 |
static GenOpFunc1 *gen_op_lmw[] = {
|
| 1289 |
&gen_op_lmw_raw, |
| 1290 |
&gen_op_lmw_le_raw, |
| 1291 |
}; |
| 1292 |
static GenOpFunc1 *gen_op_stmw[] = {
|
| 1293 |
&gen_op_stmw_raw, |
| 1294 |
&gen_op_stmw_le_raw, |
| 1295 |
}; |
| 1296 |
#else
|
| 1297 |
static GenOpFunc1 *gen_op_lmw[] = {
|
| 1298 |
&gen_op_lmw_user, |
| 1299 |
&gen_op_lmw_le_user, |
| 1300 |
&gen_op_lmw_kernel, |
| 1301 |
&gen_op_lmw_le_kernel, |
| 1302 |
}; |
| 1303 |
static GenOpFunc1 *gen_op_stmw[] = {
|
| 1304 |
&gen_op_stmw_user, |
| 1305 |
&gen_op_stmw_le_user, |
| 1306 |
&gen_op_stmw_kernel, |
| 1307 |
&gen_op_stmw_le_kernel, |
| 1308 |
}; |
| 1309 |
#endif
|
| 1310 |
|
| 1311 |
/* lmw */
|
| 1312 |
GEN_HANDLER(lmw, 0x2E, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 1313 |
{
|
| 1314 |
int simm = SIMM(ctx->opcode);
|
| 1315 |
|
| 1316 |
if (rA(ctx->opcode) == 0) { |
| 1317 |
gen_op_set_T0(simm); |
| 1318 |
} else {
|
| 1319 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 1320 |
if (simm != 0) |
| 1321 |
gen_op_addi(simm); |
| 1322 |
} |
| 1323 |
op_ldstm(lmw, rD(ctx->opcode)); |
| 1324 |
} |
| 1325 |
|
| 1326 |
/* stmw */
|
| 1327 |
GEN_HANDLER(stmw, 0x2F, 0xFF, 0xFF, 0x00000000, PPC_INTEGER) |
| 1328 |
{
|
| 1329 |
int simm = SIMM(ctx->opcode);
|
| 1330 |
|
| 1331 |
if (rA(ctx->opcode) == 0) { |
| 1332 |
gen_op_set_T0(simm); |
| 1333 |
} else {
|
| 1334 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 1335 |
if (simm != 0) |
| 1336 |
gen_op_addi(simm); |
| 1337 |
} |
| 1338 |
op_ldstm(stmw, rS(ctx->opcode)); |
| 1339 |
} |
| 1340 |
|
| 1341 |
/*** Integer load and store strings ***/
|
| 1342 |
#define op_ldsts(name, start) (*gen_op_##name[ctx->mem_idx])(start) |
| 1343 |
#define op_ldstsx(name, rd, ra, rb) (*gen_op_##name[ctx->mem_idx])(rd, ra, rb) |
| 1344 |
#if defined(CONFIG_USER_ONLY)
|
| 1345 |
static GenOpFunc1 *gen_op_lswi[] = {
|
| 1346 |
&gen_op_lswi_raw, |
| 1347 |
&gen_op_lswi_le_raw, |
| 1348 |
}; |
| 1349 |
static GenOpFunc3 *gen_op_lswx[] = {
|
| 1350 |
&gen_op_lswx_raw, |
| 1351 |
&gen_op_lswx_le_raw, |
| 1352 |
}; |
| 1353 |
static GenOpFunc1 *gen_op_stsw[] = {
|
| 1354 |
&gen_op_stsw_raw, |
| 1355 |
&gen_op_stsw_le_raw, |
| 1356 |
}; |
| 1357 |
#else
|
| 1358 |
static GenOpFunc1 *gen_op_lswi[] = {
|
| 1359 |
&gen_op_lswi_user, |
| 1360 |
&gen_op_lswi_le_user, |
| 1361 |
&gen_op_lswi_kernel, |
| 1362 |
&gen_op_lswi_le_kernel, |
| 1363 |
}; |
| 1364 |
static GenOpFunc3 *gen_op_lswx[] = {
|
| 1365 |
&gen_op_lswx_user, |
| 1366 |
&gen_op_lswx_le_user, |
| 1367 |
&gen_op_lswx_kernel, |
| 1368 |
&gen_op_lswx_le_kernel, |
| 1369 |
}; |
| 1370 |
static GenOpFunc1 *gen_op_stsw[] = {
|
| 1371 |
&gen_op_stsw_user, |
| 1372 |
&gen_op_stsw_le_user, |
| 1373 |
&gen_op_stsw_kernel, |
| 1374 |
&gen_op_stsw_le_kernel, |
| 1375 |
}; |
| 1376 |
#endif
|
| 1377 |
|
| 1378 |
/* lswi */
|
| 1379 |
/* PowerPC32 specification says we must generate an exception if
|
| 1380 |
* rA is in the range of registers to be loaded.
|
| 1381 |
* In an other hand, IBM says this is valid, but rA won't be loaded.
|
| 1382 |
* For now, I'll follow the spec...
|
| 1383 |
*/
|
| 1384 |
GEN_HANDLER(lswi, 0x1F, 0x15, 0x12, 0x00000001, PPC_INTEGER) |
| 1385 |
{
|
| 1386 |
int nb = NB(ctx->opcode);
|
| 1387 |
int start = rD(ctx->opcode);
|
| 1388 |
int ra = rA(ctx->opcode);
|
| 1389 |
int nr;
|
| 1390 |
|
| 1391 |
if (nb == 0) |
| 1392 |
nb = 32;
|
| 1393 |
nr = nb / 4;
|
| 1394 |
if (((start + nr) > 32 && start <= ra && (start + nr - 32) > ra) || |
| 1395 |
((start + nr) <= 32 && start <= ra && (start + nr) > ra)) {
|
| 1396 |
RET_EXCP(ctx, EXCP_PROGRAM, EXCP_INVAL | EXCP_INVAL_LSWX); |
| 1397 |
return;
|
| 1398 |
} |
| 1399 |
if (ra == 0) { |
| 1400 |
gen_op_set_T0(0);
|
| 1401 |
} else {
|
| 1402 |
gen_op_load_gpr_T0(ra); |
| 1403 |
} |
| 1404 |
gen_op_set_T1(nb); |
| 1405 |
/* NIP cannot be restored if the memory exception comes from an helper */
|
| 1406 |
gen_op_update_nip((ctx)->nip - 4);
|
| 1407 |
op_ldsts(lswi, start); |
| 1408 |
} |
| 1409 |
|
| 1410 |
/* lswx */
|
| 1411 |
GEN_HANDLER(lswx, 0x1F, 0x15, 0x10, 0x00000001, PPC_INTEGER) |
| 1412 |
{
|
| 1413 |
int ra = rA(ctx->opcode);
|
| 1414 |
int rb = rB(ctx->opcode);
|
| 1415 |
|
| 1416 |
if (ra == 0) { |
| 1417 |
gen_op_load_gpr_T0(rb); |
| 1418 |
ra = rb; |
| 1419 |
} else {
|
| 1420 |
gen_op_load_gpr_T0(ra); |
| 1421 |
gen_op_load_gpr_T1(rb); |
| 1422 |
gen_op_add(); |
| 1423 |
} |
| 1424 |
gen_op_load_xer_bc(); |
| 1425 |
/* NIP cannot be restored if the memory exception comes from an helper */
|
| 1426 |
gen_op_update_nip((ctx)->nip - 4);
|
| 1427 |
op_ldstsx(lswx, rD(ctx->opcode), ra, rb); |
| 1428 |
} |
| 1429 |
|
| 1430 |
/* stswi */
|
| 1431 |
GEN_HANDLER(stswi, 0x1F, 0x15, 0x16, 0x00000001, PPC_INTEGER) |
| 1432 |
{
|
| 1433 |
int nb = NB(ctx->opcode);
|
| 1434 |
|
| 1435 |
if (rA(ctx->opcode) == 0) { |
| 1436 |
gen_op_set_T0(0);
|
| 1437 |
} else {
|
| 1438 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 1439 |
} |
| 1440 |
if (nb == 0) |
| 1441 |
nb = 32;
|
| 1442 |
gen_op_set_T1(nb); |
| 1443 |
/* NIP cannot be restored if the memory exception comes from an helper */
|
| 1444 |
gen_op_update_nip((ctx)->nip - 4);
|
| 1445 |
op_ldsts(stsw, rS(ctx->opcode)); |
| 1446 |
} |
| 1447 |
|
| 1448 |
/* stswx */
|
| 1449 |
GEN_HANDLER(stswx, 0x1F, 0x15, 0x14, 0x00000001, PPC_INTEGER) |
| 1450 |
{
|
| 1451 |
int ra = rA(ctx->opcode);
|
| 1452 |
|
| 1453 |
if (ra == 0) { |
| 1454 |
gen_op_load_gpr_T0(rB(ctx->opcode)); |
| 1455 |
ra = rB(ctx->opcode); |
| 1456 |
} else {
|
| 1457 |
gen_op_load_gpr_T0(ra); |
| 1458 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 1459 |
gen_op_add(); |
| 1460 |
} |
| 1461 |
gen_op_load_xer_bc(); |
| 1462 |
/* NIP cannot be restored if the memory exception comes from an helper */
|
| 1463 |
gen_op_update_nip((ctx)->nip - 4);
|
| 1464 |
op_ldsts(stsw, rS(ctx->opcode)); |
| 1465 |
} |
| 1466 |
|
| 1467 |
/*** Memory synchronisation ***/
|
| 1468 |
/* eieio */
|
| 1469 |
GEN_HANDLER(eieio, 0x1F, 0x16, 0x1A, 0x03FF0801, PPC_MEM) |
| 1470 |
{
|
| 1471 |
} |
| 1472 |
|
| 1473 |
/* isync */
|
| 1474 |
GEN_HANDLER(isync, 0x13, 0x16, 0xFF, 0x03FF0801, PPC_MEM) |
| 1475 |
{
|
| 1476 |
} |
| 1477 |
|
| 1478 |
#define op_lwarx() (*gen_op_lwarx[ctx->mem_idx])()
|
| 1479 |
#define op_stwcx() (*gen_op_stwcx[ctx->mem_idx])()
|
| 1480 |
#if defined(CONFIG_USER_ONLY)
|
| 1481 |
static GenOpFunc *gen_op_lwarx[] = {
|
| 1482 |
&gen_op_lwarx_raw, |
| 1483 |
&gen_op_lwarx_le_raw, |
| 1484 |
}; |
| 1485 |
static GenOpFunc *gen_op_stwcx[] = {
|
| 1486 |
&gen_op_stwcx_raw, |
| 1487 |
&gen_op_stwcx_le_raw, |
| 1488 |
}; |
| 1489 |
#else
|
| 1490 |
static GenOpFunc *gen_op_lwarx[] = {
|
| 1491 |
&gen_op_lwarx_user, |
| 1492 |
&gen_op_lwarx_le_user, |
| 1493 |
&gen_op_lwarx_kernel, |
| 1494 |
&gen_op_lwarx_le_kernel, |
| 1495 |
}; |
| 1496 |
static GenOpFunc *gen_op_stwcx[] = {
|
| 1497 |
&gen_op_stwcx_user, |
| 1498 |
&gen_op_stwcx_le_user, |
| 1499 |
&gen_op_stwcx_kernel, |
| 1500 |
&gen_op_stwcx_le_kernel, |
| 1501 |
}; |
| 1502 |
#endif
|
| 1503 |
|
| 1504 |
/* lwarx */
|
| 1505 |
GEN_HANDLER(lwarx, 0x1F, 0x14, 0xFF, 0x00000001, PPC_RES) |
| 1506 |
{
|
| 1507 |
if (rA(ctx->opcode) == 0) { |
| 1508 |
gen_op_load_gpr_T0(rB(ctx->opcode)); |
| 1509 |
} else {
|
| 1510 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 1511 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 1512 |
gen_op_add(); |
| 1513 |
} |
| 1514 |
op_lwarx(); |
| 1515 |
gen_op_store_T1_gpr(rD(ctx->opcode)); |
| 1516 |
} |
| 1517 |
|
| 1518 |
/* stwcx. */
|
| 1519 |
GEN_HANDLER(stwcx_, 0x1F, 0x16, 0x04, 0x00000000, PPC_RES) |
| 1520 |
{
|
| 1521 |
if (rA(ctx->opcode) == 0) { |
| 1522 |
gen_op_load_gpr_T0(rB(ctx->opcode)); |
| 1523 |
} else {
|
| 1524 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 1525 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 1526 |
gen_op_add(); |
| 1527 |
} |
| 1528 |
gen_op_load_gpr_T1(rS(ctx->opcode)); |
| 1529 |
op_stwcx(); |
| 1530 |
} |
| 1531 |
|
| 1532 |
/* sync */
|
| 1533 |
GEN_HANDLER(sync, 0x1F, 0x16, 0x12, 0x03FF0801, PPC_MEM) |
| 1534 |
{
|
| 1535 |
} |
| 1536 |
|
| 1537 |
/*** Floating-point load ***/
|
| 1538 |
#define GEN_LDF(width, opc) \
|
| 1539 |
GEN_HANDLER(l##width, opc, 0xFF, 0xFF, 0x00000000, PPC_FLOAT) \ |
| 1540 |
{ \
|
| 1541 |
uint32_t simm = SIMM(ctx->opcode); \ |
| 1542 |
if (!ctx->fpu_enabled) { \
|
| 1543 |
RET_EXCP(ctx, EXCP_NO_FP, 0); \
|
| 1544 |
return; \
|
| 1545 |
} \ |
| 1546 |
if (rA(ctx->opcode) == 0) { \ |
| 1547 |
gen_op_set_T0(simm); \ |
| 1548 |
} else { \
|
| 1549 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1550 |
if (simm != 0) \ |
| 1551 |
gen_op_addi(simm); \ |
| 1552 |
} \ |
| 1553 |
op_ldst(l##width); \ |
| 1554 |
gen_op_store_FT1_fpr(rD(ctx->opcode)); \ |
| 1555 |
} |
| 1556 |
|
| 1557 |
#define GEN_LDUF(width, opc) \
|
| 1558 |
GEN_HANDLER(l##width##u, opc, 0xFF, 0xFF, 0x00000000, PPC_FLOAT) \ |
| 1559 |
{ \
|
| 1560 |
uint32_t simm = SIMM(ctx->opcode); \ |
| 1561 |
if (!ctx->fpu_enabled) { \
|
| 1562 |
RET_EXCP(ctx, EXCP_NO_FP, 0); \
|
| 1563 |
return; \
|
| 1564 |
} \ |
| 1565 |
if (rA(ctx->opcode) == 0 || \ |
| 1566 |
rA(ctx->opcode) == rD(ctx->opcode)) { \
|
| 1567 |
RET_INVAL(ctx); \ |
| 1568 |
return; \
|
| 1569 |
} \ |
| 1570 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1571 |
if (simm != 0) \ |
| 1572 |
gen_op_addi(simm); \ |
| 1573 |
op_ldst(l##width); \ |
| 1574 |
gen_op_store_FT1_fpr(rD(ctx->opcode)); \ |
| 1575 |
gen_op_store_T0_gpr(rA(ctx->opcode)); \ |
| 1576 |
} |
| 1577 |
|
| 1578 |
#define GEN_LDUXF(width, opc) \
|
| 1579 |
GEN_HANDLER(l##width##ux, 0x1F, 0x17, opc, 0x00000001, PPC_FLOAT) \ |
| 1580 |
{ \
|
| 1581 |
if (!ctx->fpu_enabled) { \
|
| 1582 |
RET_EXCP(ctx, EXCP_NO_FP, 0); \
|
| 1583 |
return; \
|
| 1584 |
} \ |
| 1585 |
if (rA(ctx->opcode) == 0 || \ |
| 1586 |
rA(ctx->opcode) == rD(ctx->opcode)) { \
|
| 1587 |
RET_INVAL(ctx); \ |
| 1588 |
return; \
|
| 1589 |
} \ |
| 1590 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1591 |
gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
| 1592 |
gen_op_add(); \ |
| 1593 |
op_ldst(l##width); \ |
| 1594 |
gen_op_store_FT1_fpr(rD(ctx->opcode)); \ |
| 1595 |
gen_op_store_T0_gpr(rA(ctx->opcode)); \ |
| 1596 |
} |
| 1597 |
|
| 1598 |
#define GEN_LDXF(width, opc2, opc3) \
|
| 1599 |
GEN_HANDLER(l##width##x, 0x1F, opc2, opc3, 0x00000001, PPC_FLOAT) \ |
| 1600 |
{ \
|
| 1601 |
if (!ctx->fpu_enabled) { \
|
| 1602 |
RET_EXCP(ctx, EXCP_NO_FP, 0); \
|
| 1603 |
return; \
|
| 1604 |
} \ |
| 1605 |
if (rA(ctx->opcode) == 0) { \ |
| 1606 |
gen_op_load_gpr_T0(rB(ctx->opcode)); \ |
| 1607 |
} else { \
|
| 1608 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1609 |
gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
| 1610 |
gen_op_add(); \ |
| 1611 |
} \ |
| 1612 |
op_ldst(l##width); \ |
| 1613 |
gen_op_store_FT1_fpr(rD(ctx->opcode)); \ |
| 1614 |
} |
| 1615 |
|
| 1616 |
#define GEN_LDFS(width, op) \
|
| 1617 |
OP_LD_TABLE(width); \ |
| 1618 |
GEN_LDF(width, op | 0x20); \
|
| 1619 |
GEN_LDUF(width, op | 0x21); \
|
| 1620 |
GEN_LDUXF(width, op | 0x01); \
|
| 1621 |
GEN_LDXF(width, 0x17, op | 0x00) |
| 1622 |
|
| 1623 |
/* lfd lfdu lfdux lfdx */
|
| 1624 |
GEN_LDFS(fd, 0x12);
|
| 1625 |
/* lfs lfsu lfsux lfsx */
|
| 1626 |
GEN_LDFS(fs, 0x10);
|
| 1627 |
|
| 1628 |
/*** Floating-point store ***/
|
| 1629 |
#define GEN_STF(width, opc) \
|
| 1630 |
GEN_HANDLER(st##width, opc, 0xFF, 0xFF, 0x00000000, PPC_FLOAT) \ |
| 1631 |
{ \
|
| 1632 |
uint32_t simm = SIMM(ctx->opcode); \ |
| 1633 |
if (!ctx->fpu_enabled) { \
|
| 1634 |
RET_EXCP(ctx, EXCP_NO_FP, 0); \
|
| 1635 |
return; \
|
| 1636 |
} \ |
| 1637 |
if (rA(ctx->opcode) == 0) { \ |
| 1638 |
gen_op_set_T0(simm); \ |
| 1639 |
} else { \
|
| 1640 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1641 |
if (simm != 0) \ |
| 1642 |
gen_op_addi(simm); \ |
| 1643 |
} \ |
| 1644 |
gen_op_load_fpr_FT1(rS(ctx->opcode)); \ |
| 1645 |
op_ldst(st##width); \ |
| 1646 |
} |
| 1647 |
|
| 1648 |
#define GEN_STUF(width, opc) \
|
| 1649 |
GEN_HANDLER(st##width##u, opc, 0xFF, 0xFF, 0x00000000, PPC_FLOAT) \ |
| 1650 |
{ \
|
| 1651 |
uint32_t simm = SIMM(ctx->opcode); \ |
| 1652 |
if (!ctx->fpu_enabled) { \
|
| 1653 |
RET_EXCP(ctx, EXCP_NO_FP, 0); \
|
| 1654 |
return; \
|
| 1655 |
} \ |
| 1656 |
if (rA(ctx->opcode) == 0) { \ |
| 1657 |
RET_INVAL(ctx); \ |
| 1658 |
return; \
|
| 1659 |
} \ |
| 1660 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1661 |
if (simm != 0) \ |
| 1662 |
gen_op_addi(simm); \ |
| 1663 |
gen_op_load_fpr_FT1(rS(ctx->opcode)); \ |
| 1664 |
op_ldst(st##width); \ |
| 1665 |
gen_op_store_T0_gpr(rA(ctx->opcode)); \ |
| 1666 |
} |
| 1667 |
|
| 1668 |
#define GEN_STUXF(width, opc) \
|
| 1669 |
GEN_HANDLER(st##width##ux, 0x1F, 0x17, opc, 0x00000001, PPC_FLOAT) \ |
| 1670 |
{ \
|
| 1671 |
if (!ctx->fpu_enabled) { \
|
| 1672 |
RET_EXCP(ctx, EXCP_NO_FP, 0); \
|
| 1673 |
return; \
|
| 1674 |
} \ |
| 1675 |
if (rA(ctx->opcode) == 0) { \ |
| 1676 |
RET_INVAL(ctx); \ |
| 1677 |
return; \
|
| 1678 |
} \ |
| 1679 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1680 |
gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
| 1681 |
gen_op_add(); \ |
| 1682 |
gen_op_load_fpr_FT1(rS(ctx->opcode)); \ |
| 1683 |
op_ldst(st##width); \ |
| 1684 |
gen_op_store_T0_gpr(rA(ctx->opcode)); \ |
| 1685 |
} |
| 1686 |
|
| 1687 |
#define GEN_STXF(width, opc2, opc3) \
|
| 1688 |
GEN_HANDLER(st##width##x, 0x1F, opc2, opc3, 0x00000001, PPC_FLOAT) \ |
| 1689 |
{ \
|
| 1690 |
if (!ctx->fpu_enabled) { \
|
| 1691 |
RET_EXCP(ctx, EXCP_NO_FP, 0); \
|
| 1692 |
return; \
|
| 1693 |
} \ |
| 1694 |
if (rA(ctx->opcode) == 0) { \ |
| 1695 |
gen_op_load_gpr_T0(rB(ctx->opcode)); \ |
| 1696 |
} else { \
|
| 1697 |
gen_op_load_gpr_T0(rA(ctx->opcode)); \ |
| 1698 |
gen_op_load_gpr_T1(rB(ctx->opcode)); \ |
| 1699 |
gen_op_add(); \ |
| 1700 |
} \ |
| 1701 |
gen_op_load_fpr_FT1(rS(ctx->opcode)); \ |
| 1702 |
op_ldst(st##width); \ |
| 1703 |
} |
| 1704 |
|
| 1705 |
#define GEN_STFS(width, op) \
|
| 1706 |
OP_ST_TABLE(width); \ |
| 1707 |
GEN_STF(width, op | 0x20); \
|
| 1708 |
GEN_STUF(width, op | 0x21); \
|
| 1709 |
GEN_STUXF(width, op | 0x01); \
|
| 1710 |
GEN_STXF(width, 0x17, op | 0x00) |
| 1711 |
|
| 1712 |
/* stfd stfdu stfdux stfdx */
|
| 1713 |
GEN_STFS(fd, 0x16);
|
| 1714 |
/* stfs stfsu stfsux stfsx */
|
| 1715 |
GEN_STFS(fs, 0x14);
|
| 1716 |
|
| 1717 |
/* Optional: */
|
| 1718 |
/* stfiwx */
|
| 1719 |
GEN_HANDLER(stfiwx, 0x1F, 0x17, 0x1E, 0x00000001, PPC_FLOAT) |
| 1720 |
{
|
| 1721 |
if (!ctx->fpu_enabled) {
|
| 1722 |
RET_EXCP(ctx, EXCP_NO_FP, 0);
|
| 1723 |
return;
|
| 1724 |
} |
| 1725 |
RET_INVAL(ctx); |
| 1726 |
} |
| 1727 |
|
| 1728 |
/*** Branch ***/
|
| 1729 |
|
| 1730 |
static inline void gen_goto_tb(DisasContext *ctx, int n, target_ulong dest) |
| 1731 |
{
|
| 1732 |
TranslationBlock *tb; |
| 1733 |
tb = ctx->tb; |
| 1734 |
if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK)) {
|
| 1735 |
if (n == 0) |
| 1736 |
gen_op_goto_tb0(TBPARAM(tb)); |
| 1737 |
else
|
| 1738 |
gen_op_goto_tb1(TBPARAM(tb)); |
| 1739 |
gen_op_set_T1(dest); |
| 1740 |
gen_op_b_T1(); |
| 1741 |
gen_op_set_T0((long)tb + n);
|
| 1742 |
if (ctx->singlestep_enabled)
|
| 1743 |
gen_op_debug(); |
| 1744 |
gen_op_exit_tb(); |
| 1745 |
} else {
|
| 1746 |
gen_op_set_T1(dest); |
| 1747 |
gen_op_b_T1(); |
| 1748 |
if (ctx->singlestep_enabled)
|
| 1749 |
gen_op_debug(); |
| 1750 |
gen_op_set_T0(0);
|
| 1751 |
gen_op_exit_tb(); |
| 1752 |
} |
| 1753 |
} |
| 1754 |
|
| 1755 |
/* b ba bl bla */
|
| 1756 |
GEN_HANDLER(b, 0x12, 0xFF, 0xFF, 0x00000000, PPC_FLOW) |
| 1757 |
{
|
| 1758 |
uint32_t li, target; |
| 1759 |
|
| 1760 |
/* sign extend LI */
|
| 1761 |
li = ((int32_t)LI(ctx->opcode) << 6) >> 6; |
| 1762 |
|
| 1763 |
if (AA(ctx->opcode) == 0) |
| 1764 |
target = ctx->nip + li - 4;
|
| 1765 |
else
|
| 1766 |
target = li; |
| 1767 |
if (LK(ctx->opcode)) {
|
| 1768 |
gen_op_setlr(ctx->nip); |
| 1769 |
} |
| 1770 |
gen_goto_tb(ctx, 0, target);
|
| 1771 |
ctx->exception = EXCP_BRANCH; |
| 1772 |
} |
| 1773 |
|
| 1774 |
#define BCOND_IM 0 |
| 1775 |
#define BCOND_LR 1 |
| 1776 |
#define BCOND_CTR 2 |
| 1777 |
|
| 1778 |
static inline void gen_bcond(DisasContext *ctx, int type) |
| 1779 |
{
|
| 1780 |
uint32_t target = 0;
|
| 1781 |
uint32_t bo = BO(ctx->opcode); |
| 1782 |
uint32_t bi = BI(ctx->opcode); |
| 1783 |
uint32_t mask; |
| 1784 |
uint32_t li; |
| 1785 |
|
| 1786 |
if ((bo & 0x4) == 0) |
| 1787 |
gen_op_dec_ctr(); |
| 1788 |
switch(type) {
|
| 1789 |
case BCOND_IM:
|
| 1790 |
li = (int32_t)((int16_t)(BD(ctx->opcode))); |
| 1791 |
if (AA(ctx->opcode) == 0) { |
| 1792 |
target = ctx->nip + li - 4;
|
| 1793 |
} else {
|
| 1794 |
target = li; |
| 1795 |
} |
| 1796 |
break;
|
| 1797 |
case BCOND_CTR:
|
| 1798 |
gen_op_movl_T1_ctr(); |
| 1799 |
break;
|
| 1800 |
default:
|
| 1801 |
case BCOND_LR:
|
| 1802 |
gen_op_movl_T1_lr(); |
| 1803 |
break;
|
| 1804 |
} |
| 1805 |
if (LK(ctx->opcode)) {
|
| 1806 |
gen_op_setlr(ctx->nip); |
| 1807 |
} |
| 1808 |
if (bo & 0x10) { |
| 1809 |
/* No CR condition */
|
| 1810 |
switch (bo & 0x6) { |
| 1811 |
case 0: |
| 1812 |
gen_op_test_ctr(); |
| 1813 |
break;
|
| 1814 |
case 2: |
| 1815 |
gen_op_test_ctrz(); |
| 1816 |
break;
|
| 1817 |
default:
|
| 1818 |
case 4: |
| 1819 |
case 6: |
| 1820 |
if (type == BCOND_IM) {
|
| 1821 |
gen_goto_tb(ctx, 0, target);
|
| 1822 |
} else {
|
| 1823 |
gen_op_b_T1(); |
| 1824 |
} |
| 1825 |
goto no_test;
|
| 1826 |
} |
| 1827 |
} else {
|
| 1828 |
mask = 1 << (3 - (bi & 0x03)); |
| 1829 |
gen_op_load_crf_T0(bi >> 2);
|
| 1830 |
if (bo & 0x8) { |
| 1831 |
switch (bo & 0x6) { |
| 1832 |
case 0: |
| 1833 |
gen_op_test_ctr_true(mask); |
| 1834 |
break;
|
| 1835 |
case 2: |
| 1836 |
gen_op_test_ctrz_true(mask); |
| 1837 |
break;
|
| 1838 |
default:
|
| 1839 |
case 4: |
| 1840 |
case 6: |
| 1841 |
gen_op_test_true(mask); |
| 1842 |
break;
|
| 1843 |
} |
| 1844 |
} else {
|
| 1845 |
switch (bo & 0x6) { |
| 1846 |
case 0: |
| 1847 |
gen_op_test_ctr_false(mask); |
| 1848 |
break;
|
| 1849 |
case 2: |
| 1850 |
gen_op_test_ctrz_false(mask); |
| 1851 |
break;
|
| 1852 |
default:
|
| 1853 |
case 4: |
| 1854 |
case 6: |
| 1855 |
gen_op_test_false(mask); |
| 1856 |
break;
|
| 1857 |
} |
| 1858 |
} |
| 1859 |
} |
| 1860 |
if (type == BCOND_IM) {
|
| 1861 |
int l1 = gen_new_label();
|
| 1862 |
gen_op_jz_T0(l1); |
| 1863 |
gen_goto_tb(ctx, 0, target);
|
| 1864 |
gen_set_label(l1); |
| 1865 |
gen_goto_tb(ctx, 1, ctx->nip);
|
| 1866 |
} else {
|
| 1867 |
gen_op_btest_T1(ctx->nip); |
| 1868 |
} |
| 1869 |
no_test:
|
| 1870 |
ctx->exception = EXCP_BRANCH; |
| 1871 |
} |
| 1872 |
|
| 1873 |
GEN_HANDLER(bc, 0x10, 0xFF, 0xFF, 0x00000000, PPC_FLOW) |
| 1874 |
{
|
| 1875 |
gen_bcond(ctx, BCOND_IM); |
| 1876 |
} |
| 1877 |
|
| 1878 |
GEN_HANDLER(bcctr, 0x13, 0x10, 0x10, 0x00000000, PPC_FLOW) |
| 1879 |
{
|
| 1880 |
gen_bcond(ctx, BCOND_CTR); |
| 1881 |
} |
| 1882 |
|
| 1883 |
GEN_HANDLER(bclr, 0x13, 0x10, 0x00, 0x00000000, PPC_FLOW) |
| 1884 |
{
|
| 1885 |
gen_bcond(ctx, BCOND_LR); |
| 1886 |
} |
| 1887 |
|
| 1888 |
/*** Condition register logical ***/
|
| 1889 |
#define GEN_CRLOGIC(op, opc) \
|
| 1890 |
GEN_HANDLER(cr##op, 0x13, 0x01, opc, 0x00000001, PPC_INTEGER) \ |
| 1891 |
{ \
|
| 1892 |
gen_op_load_crf_T0(crbA(ctx->opcode) >> 2); \
|
| 1893 |
gen_op_getbit_T0(3 - (crbA(ctx->opcode) & 0x03)); \ |
| 1894 |
gen_op_load_crf_T1(crbB(ctx->opcode) >> 2); \
|
| 1895 |
gen_op_getbit_T1(3 - (crbB(ctx->opcode) & 0x03)); \ |
| 1896 |
gen_op_##op(); \ |
| 1897 |
gen_op_load_crf_T1(crbD(ctx->opcode) >> 2); \
|
| 1898 |
gen_op_setcrfbit(~(1 << (3 - (crbD(ctx->opcode) & 0x03))), \ |
| 1899 |
3 - (crbD(ctx->opcode) & 0x03)); \ |
| 1900 |
gen_op_store_T1_crf(crbD(ctx->opcode) >> 2); \
|
| 1901 |
} |
| 1902 |
|
| 1903 |
/* crand */
|
| 1904 |
GEN_CRLOGIC(and, 0x08)
|
| 1905 |
/* crandc */
|
| 1906 |
GEN_CRLOGIC(andc, 0x04)
|
| 1907 |
/* creqv */
|
| 1908 |
GEN_CRLOGIC(eqv, 0x09)
|
| 1909 |
/* crnand */
|
| 1910 |
GEN_CRLOGIC(nand, 0x07)
|
| 1911 |
/* crnor */
|
| 1912 |
GEN_CRLOGIC(nor, 0x01)
|
| 1913 |
/* cror */
|
| 1914 |
GEN_CRLOGIC(or, 0x0E)
|
| 1915 |
/* crorc */
|
| 1916 |
GEN_CRLOGIC(orc, 0x0D)
|
| 1917 |
/* crxor */
|
| 1918 |
GEN_CRLOGIC(xor, 0x06)
|
| 1919 |
/* mcrf */
|
| 1920 |
GEN_HANDLER(mcrf, 0x13, 0x00, 0xFF, 0x00000001, PPC_INTEGER) |
| 1921 |
{
|
| 1922 |
gen_op_load_crf_T0(crfS(ctx->opcode)); |
| 1923 |
gen_op_store_T0_crf(crfD(ctx->opcode)); |
| 1924 |
} |
| 1925 |
|
| 1926 |
/*** System linkage ***/
|
| 1927 |
/* rfi (supervisor only) */
|
| 1928 |
GEN_HANDLER(rfi, 0x13, 0x12, 0xFF, 0x03FF8001, PPC_FLOW) |
| 1929 |
{
|
| 1930 |
#if defined(CONFIG_USER_ONLY)
|
| 1931 |
RET_PRIVOPC(ctx); |
| 1932 |
#else
|
| 1933 |
/* Restore CPU state */
|
| 1934 |
if (!ctx->supervisor) {
|
| 1935 |
RET_PRIVOPC(ctx); |
| 1936 |
return;
|
| 1937 |
} |
| 1938 |
gen_op_rfi(); |
| 1939 |
RET_CHG_FLOW(ctx); |
| 1940 |
#endif
|
| 1941 |
} |
| 1942 |
|
| 1943 |
/* sc */
|
| 1944 |
GEN_HANDLER(sc, 0x11, 0xFF, 0xFF, 0x03FFFFFD, PPC_FLOW) |
| 1945 |
{
|
| 1946 |
#if defined(CONFIG_USER_ONLY)
|
| 1947 |
RET_EXCP(ctx, EXCP_SYSCALL_USER, 0);
|
| 1948 |
#else
|
| 1949 |
RET_EXCP(ctx, EXCP_SYSCALL, 0);
|
| 1950 |
#endif
|
| 1951 |
} |
| 1952 |
|
| 1953 |
/*** Trap ***/
|
| 1954 |
/* tw */
|
| 1955 |
GEN_HANDLER(tw, 0x1F, 0x04, 0xFF, 0x00000001, PPC_FLOW) |
| 1956 |
{
|
| 1957 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 1958 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 1959 |
/* Update the nip since this might generate a trap exception */
|
| 1960 |
gen_op_update_nip(ctx->nip); |
| 1961 |
gen_op_tw(TO(ctx->opcode)); |
| 1962 |
} |
| 1963 |
|
| 1964 |
/* twi */
|
| 1965 |
GEN_HANDLER(twi, 0x03, 0xFF, 0xFF, 0x00000000, PPC_FLOW) |
| 1966 |
{
|
| 1967 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 1968 |
#if 0
|
| 1969 |
printf("%s: param=0x%04x T0=0x%04x\n", __func__,
|
| 1970 |
SIMM(ctx->opcode), TO(ctx->opcode));
|
| 1971 |
#endif
|
| 1972 |
gen_op_twi(SIMM(ctx->opcode), TO(ctx->opcode)); |
| 1973 |
} |
| 1974 |
|
| 1975 |
/*** Processor control ***/
|
| 1976 |
static inline int check_spr_access (int spr, int rw, int supervisor) |
| 1977 |
{
|
| 1978 |
uint32_t rights = spr_access[spr >> 1] >> (4 * (spr & 1)); |
| 1979 |
|
| 1980 |
#if 0
|
| 1981 |
if (spr != LR && spr != CTR) {
|
| 1982 |
if (loglevel > 0) {
|
| 1983 |
fprintf(logfile, "%s reg=%d s=%d rw=%d r=0x%02x 0x%02x\n", __func__,
|
| 1984 |
SPR_ENCODE(spr), supervisor, rw, rights,
|
| 1985 |
(rights >> ((2 * supervisor) + rw)) & 1);
|
| 1986 |
} else {
|
| 1987 |
printf("%s reg=%d s=%d rw=%d r=0x%02x 0x%02x\n", __func__,
|
| 1988 |
SPR_ENCODE(spr), supervisor, rw, rights,
|
| 1989 |
(rights >> ((2 * supervisor) + rw)) & 1);
|
| 1990 |
}
|
| 1991 |
}
|
| 1992 |
#endif
|
| 1993 |
if (rights == 0) |
| 1994 |
return -1; |
| 1995 |
rights = rights >> (2 * supervisor);
|
| 1996 |
rights = rights >> rw; |
| 1997 |
|
| 1998 |
return rights & 1; |
| 1999 |
} |
| 2000 |
|
| 2001 |
/* mcrxr */
|
| 2002 |
GEN_HANDLER(mcrxr, 0x1F, 0x00, 0x10, 0x007FF801, PPC_MISC) |
| 2003 |
{
|
| 2004 |
gen_op_load_xer_cr(); |
| 2005 |
gen_op_store_T0_crf(crfD(ctx->opcode)); |
| 2006 |
gen_op_clear_xer_cr(); |
| 2007 |
} |
| 2008 |
|
| 2009 |
/* mfcr */
|
| 2010 |
GEN_HANDLER(mfcr, 0x1F, 0x13, 0x00, 0x001FF801, PPC_MISC) |
| 2011 |
{
|
| 2012 |
gen_op_load_cr(); |
| 2013 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 2014 |
} |
| 2015 |
|
| 2016 |
/* mfmsr */
|
| 2017 |
GEN_HANDLER(mfmsr, 0x1F, 0x13, 0x02, 0x001FF801, PPC_MISC) |
| 2018 |
{
|
| 2019 |
#if defined(CONFIG_USER_ONLY)
|
| 2020 |
RET_PRIVREG(ctx); |
| 2021 |
#else
|
| 2022 |
if (!ctx->supervisor) {
|
| 2023 |
RET_PRIVREG(ctx); |
| 2024 |
return;
|
| 2025 |
} |
| 2026 |
gen_op_load_msr(); |
| 2027 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 2028 |
#endif
|
| 2029 |
} |
| 2030 |
|
| 2031 |
#if 0
|
| 2032 |
#define SPR_NOACCESS ((void *)(-1))
|
| 2033 |
#else
|
| 2034 |
static void spr_noaccess (void *opaque, int sprn) |
| 2035 |
{
|
| 2036 |
sprn = ((sprn >> 5) & 0x1F) | ((sprn & 0x1F) << 5); |
| 2037 |
printf("ERROR: try to access SPR %d !\n", sprn);
|
| 2038 |
} |
| 2039 |
#define SPR_NOACCESS (&spr_noaccess)
|
| 2040 |
#endif
|
| 2041 |
|
| 2042 |
/* mfspr */
|
| 2043 |
static inline void gen_op_mfspr (DisasContext *ctx) |
| 2044 |
{
|
| 2045 |
void (*read_cb)(void *opaque, int sprn); |
| 2046 |
uint32_t sprn = SPR(ctx->opcode); |
| 2047 |
|
| 2048 |
#if !defined(CONFIG_USER_ONLY)
|
| 2049 |
if (ctx->supervisor)
|
| 2050 |
read_cb = ctx->spr_cb[sprn].oea_read; |
| 2051 |
else
|
| 2052 |
#endif
|
| 2053 |
read_cb = ctx->spr_cb[sprn].uea_read; |
| 2054 |
if (read_cb != NULL) { |
| 2055 |
if (read_cb != SPR_NOACCESS) {
|
| 2056 |
(*read_cb)(ctx, sprn); |
| 2057 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 2058 |
} else {
|
| 2059 |
/* Privilege exception */
|
| 2060 |
if (loglevel) {
|
| 2061 |
fprintf(logfile, "Trying to read priviledged spr %d %03x\n",
|
| 2062 |
sprn, sprn); |
| 2063 |
} |
| 2064 |
printf("Trying to read priviledged spr %d %03x\n", sprn, sprn);
|
| 2065 |
RET_PRIVREG(ctx); |
| 2066 |
} |
| 2067 |
} else {
|
| 2068 |
/* Not defined */
|
| 2069 |
if (loglevel) {
|
| 2070 |
fprintf(logfile, "Trying to read invalid spr %d %03x\n",
|
| 2071 |
sprn, sprn); |
| 2072 |
} |
| 2073 |
printf("Trying to read invalid spr %d %03x\n", sprn, sprn);
|
| 2074 |
RET_EXCP(ctx, EXCP_PROGRAM, EXCP_INVAL | EXCP_INVAL_SPR); |
| 2075 |
} |
| 2076 |
} |
| 2077 |
|
| 2078 |
GEN_HANDLER(mfspr, 0x1F, 0x13, 0x0A, 0x00000001, PPC_MISC) |
| 2079 |
{
|
| 2080 |
gen_op_mfspr(ctx); |
| 2081 |
} |
| 2082 |
|
| 2083 |
/* mftb */
|
| 2084 |
GEN_HANDLER(mftb, 0x1F, 0x13, 0x0B, 0x00000001, PPC_TB) |
| 2085 |
{
|
| 2086 |
gen_op_mfspr(ctx); |
| 2087 |
} |
| 2088 |
|
| 2089 |
/* mtcrf */
|
| 2090 |
/* The mask should be 0x00100801, but Mac OS X 10.4 use an alternate form */
|
| 2091 |
GEN_HANDLER(mtcrf, 0x1F, 0x10, 0x04, 0x00000801, PPC_MISC) |
| 2092 |
{
|
| 2093 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 2094 |
gen_op_store_cr(CRM(ctx->opcode)); |
| 2095 |
} |
| 2096 |
|
| 2097 |
/* mtmsr */
|
| 2098 |
GEN_HANDLER(mtmsr, 0x1F, 0x12, 0x04, 0x001FF801, PPC_MISC) |
| 2099 |
{
|
| 2100 |
#if defined(CONFIG_USER_ONLY)
|
| 2101 |
RET_PRIVREG(ctx); |
| 2102 |
#else
|
| 2103 |
if (!ctx->supervisor) {
|
| 2104 |
RET_PRIVREG(ctx); |
| 2105 |
return;
|
| 2106 |
} |
| 2107 |
gen_op_update_nip((ctx)->nip); |
| 2108 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 2109 |
gen_op_store_msr(); |
| 2110 |
/* Must stop the translation as machine state (may have) changed */
|
| 2111 |
RET_CHG_FLOW(ctx); |
| 2112 |
#endif
|
| 2113 |
} |
| 2114 |
|
| 2115 |
/* mtspr */
|
| 2116 |
GEN_HANDLER(mtspr, 0x1F, 0x13, 0x0E, 0x00000001, PPC_MISC) |
| 2117 |
{
|
| 2118 |
void (*write_cb)(void *opaque, int sprn); |
| 2119 |
uint32_t sprn = SPR(ctx->opcode); |
| 2120 |
|
| 2121 |
#if !defined(CONFIG_USER_ONLY)
|
| 2122 |
if (ctx->supervisor)
|
| 2123 |
write_cb = ctx->spr_cb[sprn].oea_write; |
| 2124 |
else
|
| 2125 |
#endif
|
| 2126 |
write_cb = ctx->spr_cb[sprn].uea_write; |
| 2127 |
if (write_cb != NULL) { |
| 2128 |
if (write_cb != SPR_NOACCESS) {
|
| 2129 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 2130 |
(*write_cb)(ctx, sprn); |
| 2131 |
} else {
|
| 2132 |
/* Privilege exception */
|
| 2133 |
if (loglevel) {
|
| 2134 |
fprintf(logfile, "Trying to write priviledged spr %d %03x\n",
|
| 2135 |
sprn, sprn); |
| 2136 |
} |
| 2137 |
printf("Trying to write priviledged spr %d %03x\n", sprn, sprn);
|
| 2138 |
RET_PRIVREG(ctx); |
| 2139 |
} |
| 2140 |
} else {
|
| 2141 |
/* Not defined */
|
| 2142 |
if (loglevel) {
|
| 2143 |
fprintf(logfile, "Trying to write invalid spr %d %03x\n",
|
| 2144 |
sprn, sprn); |
| 2145 |
} |
| 2146 |
printf("Trying to write invalid spr %d %03x\n", sprn, sprn);
|
| 2147 |
RET_EXCP(ctx, EXCP_PROGRAM, EXCP_INVAL | EXCP_INVAL_SPR); |
| 2148 |
} |
| 2149 |
} |
| 2150 |
|
| 2151 |
/*** Cache management ***/
|
| 2152 |
/* For now, all those will be implemented as nop:
|
| 2153 |
* this is valid, regarding the PowerPC specs...
|
| 2154 |
* We just have to flush tb while invalidating instruction cache lines...
|
| 2155 |
*/
|
| 2156 |
/* dcbf */
|
| 2157 |
GEN_HANDLER(dcbf, 0x1F, 0x16, 0x02, 0x03E00001, PPC_CACHE) |
| 2158 |
{
|
| 2159 |
if (rA(ctx->opcode) == 0) { |
| 2160 |
gen_op_load_gpr_T0(rB(ctx->opcode)); |
| 2161 |
} else {
|
| 2162 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 2163 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 2164 |
gen_op_add(); |
| 2165 |
} |
| 2166 |
op_ldst(lbz); |
| 2167 |
} |
| 2168 |
|
| 2169 |
/* dcbi (Supervisor only) */
|
| 2170 |
GEN_HANDLER(dcbi, 0x1F, 0x16, 0x0E, 0x03E00001, PPC_CACHE) |
| 2171 |
{
|
| 2172 |
#if defined(CONFIG_USER_ONLY)
|
| 2173 |
RET_PRIVOPC(ctx); |
| 2174 |
#else
|
| 2175 |
if (!ctx->supervisor) {
|
| 2176 |
RET_PRIVOPC(ctx); |
| 2177 |
return;
|
| 2178 |
} |
| 2179 |
if (rA(ctx->opcode) == 0) { |
| 2180 |
gen_op_load_gpr_T0(rB(ctx->opcode)); |
| 2181 |
} else {
|
| 2182 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 2183 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 2184 |
gen_op_add(); |
| 2185 |
} |
| 2186 |
op_ldst(lbz); |
| 2187 |
op_ldst(stb); |
| 2188 |
#endif
|
| 2189 |
} |
| 2190 |
|
| 2191 |
/* dcdst */
|
| 2192 |
GEN_HANDLER(dcbst, 0x1F, 0x16, 0x01, 0x03E00001, PPC_CACHE) |
| 2193 |
{
|
| 2194 |
if (rA(ctx->opcode) == 0) { |
| 2195 |
gen_op_load_gpr_T0(rB(ctx->opcode)); |
| 2196 |
} else {
|
| 2197 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 2198 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 2199 |
gen_op_add(); |
| 2200 |
} |
| 2201 |
op_ldst(lbz); |
| 2202 |
} |
| 2203 |
|
| 2204 |
/* dcbt */
|
| 2205 |
GEN_HANDLER(dcbt, 0x1F, 0x16, 0x08, 0x03E00001, PPC_CACHE) |
| 2206 |
{
|
| 2207 |
} |
| 2208 |
|
| 2209 |
/* dcbtst */
|
| 2210 |
GEN_HANDLER(dcbtst, 0x1F, 0x16, 0x07, 0x03E00001, PPC_CACHE) |
| 2211 |
{
|
| 2212 |
} |
| 2213 |
|
| 2214 |
/* dcbz */
|
| 2215 |
#if defined(CONFIG_USER_ONLY)
|
| 2216 |
#define op_dcbz() gen_op_dcbz_raw()
|
| 2217 |
#else
|
| 2218 |
#define op_dcbz() (*gen_op_dcbz[ctx->mem_idx])()
|
| 2219 |
static GenOpFunc *gen_op_dcbz[] = {
|
| 2220 |
&gen_op_dcbz_user, |
| 2221 |
&gen_op_dcbz_user, |
| 2222 |
&gen_op_dcbz_kernel, |
| 2223 |
&gen_op_dcbz_kernel, |
| 2224 |
}; |
| 2225 |
#endif
|
| 2226 |
|
| 2227 |
GEN_HANDLER(dcbz, 0x1F, 0x16, 0x1F, 0x03E00001, PPC_CACHE) |
| 2228 |
{
|
| 2229 |
if (rA(ctx->opcode) == 0) { |
| 2230 |
gen_op_load_gpr_T0(rB(ctx->opcode)); |
| 2231 |
} else {
|
| 2232 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 2233 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 2234 |
gen_op_add(); |
| 2235 |
} |
| 2236 |
op_dcbz(); |
| 2237 |
gen_op_check_reservation(); |
| 2238 |
} |
| 2239 |
|
| 2240 |
/* icbi */
|
| 2241 |
GEN_HANDLER(icbi, 0x1F, 0x16, 0x1E, 0x03E00001, PPC_CACHE) |
| 2242 |
{
|
| 2243 |
if (rA(ctx->opcode) == 0) { |
| 2244 |
gen_op_load_gpr_T0(rB(ctx->opcode)); |
| 2245 |
} else {
|
| 2246 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 2247 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 2248 |
gen_op_add(); |
| 2249 |
} |
| 2250 |
gen_op_icbi(); |
| 2251 |
} |
| 2252 |
|
| 2253 |
/* Optional: */
|
| 2254 |
/* dcba */
|
| 2255 |
GEN_HANDLER(dcba, 0x1F, 0x16, 0x17, 0x03E00001, PPC_CACHE_OPT) |
| 2256 |
{
|
| 2257 |
} |
| 2258 |
|
| 2259 |
/*** Segment register manipulation ***/
|
| 2260 |
/* Supervisor only: */
|
| 2261 |
/* mfsr */
|
| 2262 |
GEN_HANDLER(mfsr, 0x1F, 0x13, 0x12, 0x0010F801, PPC_SEGMENT) |
| 2263 |
{
|
| 2264 |
#if defined(CONFIG_USER_ONLY)
|
| 2265 |
RET_PRIVREG(ctx); |
| 2266 |
#else
|
| 2267 |
if (!ctx->supervisor) {
|
| 2268 |
RET_PRIVREG(ctx); |
| 2269 |
return;
|
| 2270 |
} |
| 2271 |
gen_op_load_sr(SR(ctx->opcode)); |
| 2272 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 2273 |
#endif
|
| 2274 |
} |
| 2275 |
|
| 2276 |
/* mfsrin */
|
| 2277 |
GEN_HANDLER(mfsrin, 0x1F, 0x13, 0x14, 0x001F0001, PPC_SEGMENT) |
| 2278 |
{
|
| 2279 |
#if defined(CONFIG_USER_ONLY)
|
| 2280 |
RET_PRIVREG(ctx); |
| 2281 |
#else
|
| 2282 |
if (!ctx->supervisor) {
|
| 2283 |
RET_PRIVREG(ctx); |
| 2284 |
return;
|
| 2285 |
} |
| 2286 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 2287 |
gen_op_load_srin(); |
| 2288 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 2289 |
#endif
|
| 2290 |
} |
| 2291 |
|
| 2292 |
/* mtsr */
|
| 2293 |
GEN_HANDLER(mtsr, 0x1F, 0x12, 0x06, 0x0010F801, PPC_SEGMENT) |
| 2294 |
{
|
| 2295 |
#if defined(CONFIG_USER_ONLY)
|
| 2296 |
RET_PRIVREG(ctx); |
| 2297 |
#else
|
| 2298 |
if (!ctx->supervisor) {
|
| 2299 |
RET_PRIVREG(ctx); |
| 2300 |
return;
|
| 2301 |
} |
| 2302 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 2303 |
gen_op_store_sr(SR(ctx->opcode)); |
| 2304 |
RET_STOP(ctx); |
| 2305 |
#endif
|
| 2306 |
} |
| 2307 |
|
| 2308 |
/* mtsrin */
|
| 2309 |
GEN_HANDLER(mtsrin, 0x1F, 0x12, 0x07, 0x001F0001, PPC_SEGMENT) |
| 2310 |
{
|
| 2311 |
#if defined(CONFIG_USER_ONLY)
|
| 2312 |
RET_PRIVREG(ctx); |
| 2313 |
#else
|
| 2314 |
if (!ctx->supervisor) {
|
| 2315 |
RET_PRIVREG(ctx); |
| 2316 |
return;
|
| 2317 |
} |
| 2318 |
gen_op_load_gpr_T0(rS(ctx->opcode)); |
| 2319 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 2320 |
gen_op_store_srin(); |
| 2321 |
RET_STOP(ctx); |
| 2322 |
#endif
|
| 2323 |
} |
| 2324 |
|
| 2325 |
/*** Lookaside buffer management ***/
|
| 2326 |
/* Optional & supervisor only: */
|
| 2327 |
/* tlbia */
|
| 2328 |
GEN_HANDLER(tlbia, 0x1F, 0x12, 0x0B, 0x03FFFC01, PPC_MEM_TLBIA) |
| 2329 |
{
|
| 2330 |
#if defined(CONFIG_USER_ONLY)
|
| 2331 |
RET_PRIVOPC(ctx); |
| 2332 |
#else
|
| 2333 |
if (!ctx->supervisor) {
|
| 2334 |
if (loglevel)
|
| 2335 |
fprintf(logfile, "%s: ! supervisor\n", __func__);
|
| 2336 |
RET_PRIVOPC(ctx); |
| 2337 |
return;
|
| 2338 |
} |
| 2339 |
gen_op_tlbia(); |
| 2340 |
RET_STOP(ctx); |
| 2341 |
#endif
|
| 2342 |
} |
| 2343 |
|
| 2344 |
/* tlbie */
|
| 2345 |
GEN_HANDLER(tlbie, 0x1F, 0x12, 0x09, 0x03FF0001, PPC_MEM) |
| 2346 |
{
|
| 2347 |
#if defined(CONFIG_USER_ONLY)
|
| 2348 |
RET_PRIVOPC(ctx); |
| 2349 |
#else
|
| 2350 |
if (!ctx->supervisor) {
|
| 2351 |
RET_PRIVOPC(ctx); |
| 2352 |
return;
|
| 2353 |
} |
| 2354 |
gen_op_load_gpr_T0(rB(ctx->opcode)); |
| 2355 |
gen_op_tlbie(); |
| 2356 |
RET_STOP(ctx); |
| 2357 |
#endif
|
| 2358 |
} |
| 2359 |
|
| 2360 |
/* tlbsync */
|
| 2361 |
GEN_HANDLER(tlbsync, 0x1F, 0x16, 0x11, 0x03FFF801, PPC_MEM) |
| 2362 |
{
|
| 2363 |
#if defined(CONFIG_USER_ONLY)
|
| 2364 |
RET_PRIVOPC(ctx); |
| 2365 |
#else
|
| 2366 |
if (!ctx->supervisor) {
|
| 2367 |
RET_PRIVOPC(ctx); |
| 2368 |
return;
|
| 2369 |
} |
| 2370 |
/* This has no effect: it should ensure that all previous
|
| 2371 |
* tlbie have completed
|
| 2372 |
*/
|
| 2373 |
RET_STOP(ctx); |
| 2374 |
#endif
|
| 2375 |
} |
| 2376 |
|
| 2377 |
/*** External control ***/
|
| 2378 |
/* Optional: */
|
| 2379 |
#define op_eciwx() (*gen_op_eciwx[ctx->mem_idx])()
|
| 2380 |
#define op_ecowx() (*gen_op_ecowx[ctx->mem_idx])()
|
| 2381 |
#if defined(CONFIG_USER_ONLY)
|
| 2382 |
static GenOpFunc *gen_op_eciwx[] = {
|
| 2383 |
&gen_op_eciwx_raw, |
| 2384 |
&gen_op_eciwx_le_raw, |
| 2385 |
}; |
| 2386 |
static GenOpFunc *gen_op_ecowx[] = {
|
| 2387 |
&gen_op_ecowx_raw, |
| 2388 |
&gen_op_ecowx_le_raw, |
| 2389 |
}; |
| 2390 |
#else
|
| 2391 |
static GenOpFunc *gen_op_eciwx[] = {
|
| 2392 |
&gen_op_eciwx_user, |
| 2393 |
&gen_op_eciwx_le_user, |
| 2394 |
&gen_op_eciwx_kernel, |
| 2395 |
&gen_op_eciwx_le_kernel, |
| 2396 |
}; |
| 2397 |
static GenOpFunc *gen_op_ecowx[] = {
|
| 2398 |
&gen_op_ecowx_user, |
| 2399 |
&gen_op_ecowx_le_user, |
| 2400 |
&gen_op_ecowx_kernel, |
| 2401 |
&gen_op_ecowx_le_kernel, |
| 2402 |
}; |
| 2403 |
#endif
|
| 2404 |
|
| 2405 |
/* eciwx */
|
| 2406 |
GEN_HANDLER(eciwx, 0x1F, 0x16, 0x0D, 0x00000001, PPC_EXTERN) |
| 2407 |
{
|
| 2408 |
/* Should check EAR[E] & alignment ! */
|
| 2409 |
if (rA(ctx->opcode) == 0) { |
| 2410 |
gen_op_load_gpr_T0(rB(ctx->opcode)); |
| 2411 |
} else {
|
| 2412 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 2413 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 2414 |
gen_op_add(); |
| 2415 |
} |
| 2416 |
op_eciwx(); |
| 2417 |
gen_op_store_T0_gpr(rD(ctx->opcode)); |
| 2418 |
} |
| 2419 |
|
| 2420 |
/* ecowx */
|
| 2421 |
GEN_HANDLER(ecowx, 0x1F, 0x16, 0x09, 0x00000001, PPC_EXTERN) |
| 2422 |
{
|
| 2423 |
/* Should check EAR[E] & alignment ! */
|
| 2424 |
if (rA(ctx->opcode) == 0) { |
| 2425 |
gen_op_load_gpr_T0(rB(ctx->opcode)); |
| 2426 |
} else {
|
| 2427 |
gen_op_load_gpr_T0(rA(ctx->opcode)); |
| 2428 |
gen_op_load_gpr_T1(rB(ctx->opcode)); |
| 2429 |
gen_op_add(); |
| 2430 |
} |
| 2431 |
gen_op_load_gpr_T2(rS(ctx->opcode)); |
| 2432 |
op_ecowx(); |
| 2433 |
} |
| 2434 |
|
| 2435 |
/* End opcode list */
|
| 2436 |
GEN_OPCODE_MARK(end); |
| 2437 |
|
| 2438 |
#include "translate_init.c" |
| 2439 |
|
| 2440 |
/*****************************************************************************/
|
| 2441 |
/* Misc PowerPC helpers */
|
| 2442 |
void cpu_dump_state(CPUState *env, FILE *f,
|
| 2443 |
int (*cpu_fprintf)(FILE *f, const char *fmt, ...), |
| 2444 |
int flags)
|
| 2445 |
{
|
| 2446 |
#if defined(TARGET_PPC64) || 1 |
| 2447 |
#define FILL "" |
| 2448 |
#define REGX "%016" PRIx64 |
| 2449 |
#define RGPL 4 |
| 2450 |
#define RFPL 4 |
| 2451 |
#else
|
| 2452 |
#define FILL " " |
| 2453 |
#define REGX "%08" PRIx64 |
| 2454 |
#define RGPL 8 |
| 2455 |
#define RFPL 4 |
| 2456 |
#endif
|
| 2457 |
|
| 2458 |
int i;
|
| 2459 |
|
| 2460 |
cpu_fprintf(f, "NIP " REGX " LR " REGX " CTR " REGX "\n", |
| 2461 |
env->nip, env->lr, env->ctr); |
| 2462 |
cpu_fprintf(f, "MSR " REGX FILL " XER %08x TB %08x %08x DECR %08x\n", |
| 2463 |
do_load_msr(env), do_load_xer(env), cpu_ppc_load_tbu(env), |
| 2464 |
cpu_ppc_load_tbl(env), cpu_ppc_load_decr(env)); |
| 2465 |
for (i = 0; i < 32; i++) { |
| 2466 |
if ((i & (RGPL - 1)) == 0) |
| 2467 |
cpu_fprintf(f, "GPR%02d", i);
|
| 2468 |
cpu_fprintf(f, " " REGX, env->gpr[i]);
|
| 2469 |
if ((i & (RGPL - 1)) == (RGPL - 1)) |
| 2470 |
cpu_fprintf(f, "\n");
|
| 2471 |
} |
| 2472 |
cpu_fprintf(f, "CR ");
|
| 2473 |
for (i = 0; i < 8; i++) |
| 2474 |
cpu_fprintf(f, "%01x", env->crf[i]);
|
| 2475 |
cpu_fprintf(f, " [");
|
| 2476 |
for (i = 0; i < 8; i++) { |
| 2477 |
char a = '-'; |
| 2478 |
if (env->crf[i] & 0x08) |
| 2479 |
a = 'L';
|
| 2480 |
else if (env->crf[i] & 0x04) |
| 2481 |
a = 'G';
|
| 2482 |
else if (env->crf[i] & 0x02) |
| 2483 |
a = 'E';
|
| 2484 |
cpu_fprintf(f, " %c%c", a, env->crf[i] & 0x01 ? 'O' : ' '); |
| 2485 |
} |
| 2486 |
cpu_fprintf(f, " ] " FILL "RES " REGX "\n", env->reserve); |
| 2487 |
for (i = 0; i < 32; i++) { |
| 2488 |
if ((i & (RFPL - 1)) == 0) |
| 2489 |
cpu_fprintf(f, "FPR%02d", i);
|
| 2490 |
cpu_fprintf(f, " %016" PRIx64, *((uint64_t *)&env->fpr[i]));
|
| 2491 |
if ((i & (RFPL - 1)) == (RFPL - 1)) |
| 2492 |
cpu_fprintf(f, "\n");
|
| 2493 |
} |
| 2494 |
cpu_fprintf(f, "SRR0 " REGX " SRR1 " REGX " " FILL FILL FILL |
| 2495 |
"SDR1 " REGX "\n", |
| 2496 |
env->spr[SPR_SRR0], env->spr[SPR_SRR1], env->sdr1); |
| 2497 |
|
| 2498 |
#undef REGX
|
| 2499 |
#undef RGPL
|
| 2500 |
#undef RFPL
|
| 2501 |
#undef FILL
|
| 2502 |
} |
| 2503 |
|
| 2504 |
/*****************************************************************************/
|
| 2505 |
int gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb,
|
| 2506 |
int search_pc)
|
| 2507 |
{
|
| 2508 |
DisasContext ctx, *ctxp = &ctx; |
| 2509 |
opc_handler_t **table, *handler; |
| 2510 |
target_ulong pc_start; |
| 2511 |
uint16_t *gen_opc_end; |
| 2512 |
int j, lj = -1; |
| 2513 |
|
| 2514 |
pc_start = tb->pc; |
| 2515 |
gen_opc_ptr = gen_opc_buf; |
| 2516 |
gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; |
| 2517 |
gen_opparam_ptr = gen_opparam_buf; |
| 2518 |
nb_gen_labels = 0;
|
| 2519 |
ctx.nip = pc_start; |
| 2520 |
ctx.tb = tb; |
| 2521 |
ctx.exception = EXCP_NONE; |
| 2522 |
ctx.spr_cb = env->spr_cb; |
| 2523 |
#if defined(CONFIG_USER_ONLY)
|
| 2524 |
ctx.mem_idx = msr_le; |
| 2525 |
#else
|
| 2526 |
ctx.supervisor = 1 - msr_pr;
|
| 2527 |
ctx.mem_idx = ((1 - msr_pr) << 1) | msr_le; |
| 2528 |
#endif
|
| 2529 |
ctx.fpu_enabled = msr_fp; |
| 2530 |
ctx.singlestep_enabled = env->singlestep_enabled; |
| 2531 |
#if defined (DO_SINGLE_STEP) && 0 |
| 2532 |
/* Single step trace mode */
|
| 2533 |
msr_se = 1;
|
| 2534 |
#endif
|
| 2535 |
/* Set env in case of segfault during code fetch */
|
| 2536 |
while (ctx.exception == EXCP_NONE && gen_opc_ptr < gen_opc_end) {
|
| 2537 |
if (env->nb_breakpoints > 0) { |
| 2538 |
for(j = 0; j < env->nb_breakpoints; j++) { |
| 2539 |
if (env->breakpoints[j] == ctx.nip) {
|
| 2540 |
gen_op_update_nip(ctx.nip); |
| 2541 |
gen_op_debug(); |
| 2542 |
break;
|
| 2543 |
} |
| 2544 |
} |
| 2545 |
} |
| 2546 |
if (search_pc) {
|
| 2547 |
j = gen_opc_ptr - gen_opc_buf; |
| 2548 |
if (lj < j) {
|
| 2549 |
lj++; |
| 2550 |
while (lj < j)
|
| 2551 |
gen_opc_instr_start[lj++] = 0;
|
| 2552 |
gen_opc_pc[lj] = ctx.nip; |
| 2553 |
gen_opc_instr_start[lj] = 1;
|
| 2554 |
} |
| 2555 |
} |
| 2556 |
#if defined PPC_DEBUG_DISAS
|
| 2557 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
| 2558 |
fprintf(logfile, "----------------\n");
|
| 2559 |
fprintf(logfile, "nip=%08x super=%d ir=%d\n",
|
| 2560 |
ctx.nip, 1 - msr_pr, msr_ir);
|
| 2561 |
} |
| 2562 |
#endif
|
| 2563 |
ctx.opcode = ldl_code(ctx.nip); |
| 2564 |
if (msr_le) {
|
| 2565 |
ctx.opcode = ((ctx.opcode & 0xFF000000) >> 24) | |
| 2566 |
((ctx.opcode & 0x00FF0000) >> 8) | |
| 2567 |
((ctx.opcode & 0x0000FF00) << 8) | |
| 2568 |
((ctx.opcode & 0x000000FF) << 24); |
| 2569 |
} |
| 2570 |
#if defined PPC_DEBUG_DISAS
|
| 2571 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
| 2572 |
fprintf(logfile, "translate opcode %08x (%02x %02x %02x) (%s)\n",
|
| 2573 |
ctx.opcode, opc1(ctx.opcode), opc2(ctx.opcode), |
| 2574 |
opc3(ctx.opcode), msr_le ? "little" : "big"); |
| 2575 |
} |
| 2576 |
#endif
|
| 2577 |
ctx.nip += 4;
|
| 2578 |
table = env->opcodes; |
| 2579 |
handler = table[opc1(ctx.opcode)]; |
| 2580 |
if (is_indirect_opcode(handler)) {
|
| 2581 |
table = ind_table(handler); |
| 2582 |
handler = table[opc2(ctx.opcode)]; |
| 2583 |
if (is_indirect_opcode(handler)) {
|
| 2584 |
table = ind_table(handler); |
| 2585 |
handler = table[opc3(ctx.opcode)]; |
| 2586 |
} |
| 2587 |
} |
| 2588 |
/* Is opcode *REALLY* valid ? */
|
| 2589 |
if (handler->handler == &gen_invalid) {
|
| 2590 |
if (loglevel > 0) { |
| 2591 |
fprintf(logfile, "invalid/unsupported opcode: "
|
| 2592 |
"%02x - %02x - %02x (%08x) 0x%08x %d\n",
|
| 2593 |
opc1(ctx.opcode), opc2(ctx.opcode), |
| 2594 |
opc3(ctx.opcode), ctx.opcode, ctx.nip - 4, msr_ir);
|
| 2595 |
} else {
|
| 2596 |
printf("invalid/unsupported opcode: "
|
| 2597 |
"%02x - %02x - %02x (%08x) 0x%08x %d\n",
|
| 2598 |
opc1(ctx.opcode), opc2(ctx.opcode), |
| 2599 |
opc3(ctx.opcode), ctx.opcode, ctx.nip - 4, msr_ir);
|
| 2600 |
} |
| 2601 |
} else {
|
| 2602 |
if ((ctx.opcode & handler->inval) != 0) { |
| 2603 |
if (loglevel > 0) { |
| 2604 |
fprintf(logfile, "invalid bits: %08x for opcode: "
|
| 2605 |
"%02x -%02x - %02x (0x%08x) (0x%08x)\n",
|
| 2606 |
ctx.opcode & handler->inval, opc1(ctx.opcode), |
| 2607 |
opc2(ctx.opcode), opc3(ctx.opcode), |
| 2608 |
ctx.opcode, ctx.nip - 4);
|
| 2609 |
} else {
|
| 2610 |
printf("invalid bits: %08x for opcode: "
|
| 2611 |
"%02x -%02x - %02x (0x%08x) (0x%08x)\n",
|
| 2612 |
ctx.opcode & handler->inval, opc1(ctx.opcode), |
| 2613 |
opc2(ctx.opcode), opc3(ctx.opcode), |
| 2614 |
ctx.opcode, ctx.nip - 4);
|
| 2615 |
} |
| 2616 |
RET_INVAL(ctxp); |
| 2617 |
break;
|
| 2618 |
} |
| 2619 |
} |
| 2620 |
(*(handler->handler))(&ctx); |
| 2621 |
/* Check trace mode exceptions */
|
| 2622 |
if ((msr_be && ctx.exception == EXCP_BRANCH) ||
|
| 2623 |
/* Check in single step trace mode
|
| 2624 |
* we need to stop except if:
|
| 2625 |
* - rfi, trap or syscall
|
| 2626 |
* - first instruction of an exception handler
|
| 2627 |
*/
|
| 2628 |
(msr_se && (ctx.nip < 0x100 ||
|
| 2629 |
ctx.nip > 0xF00 ||
|
| 2630 |
(ctx.nip & 0xFC) != 0x04) && |
| 2631 |
ctx.exception != EXCP_SYSCALL && |
| 2632 |
ctx.exception != EXCP_SYSCALL_USER && |
| 2633 |
ctx.exception != EXCP_TRAP)) {
|
| 2634 |
RET_EXCP(ctxp, EXCP_TRACE, 0);
|
| 2635 |
} |
| 2636 |
|
| 2637 |
/* if we reach a page boundary or are single stepping, stop
|
| 2638 |
* generation
|
| 2639 |
*/
|
| 2640 |
if (((ctx.nip & (TARGET_PAGE_SIZE - 1)) == 0) || |
| 2641 |
(env->singlestep_enabled)) {
|
| 2642 |
break;
|
| 2643 |
} |
| 2644 |
#if defined (DO_SINGLE_STEP)
|
| 2645 |
break;
|
| 2646 |
#endif
|
| 2647 |
} |
| 2648 |
if (ctx.exception == EXCP_NONE) {
|
| 2649 |
gen_goto_tb(&ctx, 0, ctx.nip);
|
| 2650 |
} else if (ctx.exception != EXCP_BRANCH) { |
| 2651 |
gen_op_set_T0(0);
|
| 2652 |
} |
| 2653 |
#if 1 |
| 2654 |
/* TO BE FIXED: T0 hasn't got a proper value, which makes tb_add_jump
|
| 2655 |
* do bad business and then qemu crashes !
|
| 2656 |
*/
|
| 2657 |
gen_op_set_T0(0);
|
| 2658 |
#endif
|
| 2659 |
/* Generate the return instruction */
|
| 2660 |
gen_op_exit_tb(); |
| 2661 |
*gen_opc_ptr = INDEX_op_end; |
| 2662 |
if (search_pc) {
|
| 2663 |
j = gen_opc_ptr - gen_opc_buf; |
| 2664 |
lj++; |
| 2665 |
while (lj <= j)
|
| 2666 |
gen_opc_instr_start[lj++] = 0;
|
| 2667 |
tb->size = 0;
|
| 2668 |
#if 0
|
| 2669 |
if (loglevel > 0) {
|
| 2670 |
page_dump(logfile);
|
| 2671 |
}
|
| 2672 |
#endif
|
| 2673 |
} else {
|
| 2674 |
tb->size = ctx.nip - pc_start; |
| 2675 |
} |
| 2676 |
#ifdef DEBUG_DISAS
|
| 2677 |
if (loglevel & CPU_LOG_TB_CPU) {
|
| 2678 |
fprintf(logfile, "---------------- excp: %04x\n", ctx.exception);
|
| 2679 |
cpu_dump_state(env, logfile, fprintf, 0);
|
| 2680 |
} |
| 2681 |
if (loglevel & CPU_LOG_TB_IN_ASM) {
|
| 2682 |
fprintf(logfile, "IN: %s\n", lookup_symbol(pc_start));
|
| 2683 |
target_disas(logfile, pc_start, ctx.nip - pc_start, msr_le); |
| 2684 |
fprintf(logfile, "\n");
|
| 2685 |
} |
| 2686 |
if (loglevel & CPU_LOG_TB_OP) {
|
| 2687 |
fprintf(logfile, "OP:\n");
|
| 2688 |
dump_ops(gen_opc_buf, gen_opparam_buf); |
| 2689 |
fprintf(logfile, "\n");
|
| 2690 |
} |
| 2691 |
#endif
|
| 2692 |
return 0; |
| 2693 |
} |
| 2694 |
|
| 2695 |
int gen_intermediate_code (CPUState *env, struct TranslationBlock *tb) |
| 2696 |
{
|
| 2697 |
return gen_intermediate_code_internal(env, tb, 0); |
| 2698 |
} |
| 2699 |
|
| 2700 |
int gen_intermediate_code_pc (CPUState *env, struct TranslationBlock *tb) |
| 2701 |
{
|
| 2702 |
return gen_intermediate_code_internal(env, tb, 1); |
| 2703 |
} |