target-z80/genreg_template_af.h

   1 /*
   2  * Z80 translation (templates for various register related operations)
   3  *
   4  *  Copyright (c) 2007-2009 Stuart Brady <stuart.brady@gmail.com>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Library General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Library General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Library General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA  02110-1301 USA
  19  */
  20
  21 /* Loads */
  22
  23 static inline void glue(gen_movw_v_,REGPAIR)(TCGv v)
  24 {
  25     TCGv tmp1 = tcg_temp_new();
  26
  27     tcg_gen_ld8u_tl(tmp1, cpu_env,
  28                     offsetof(CPUState, regs[glue(R_,REGHIGH)]) +
  29                                             BYTE_OFFSET(cpu_env->regs[], 0));
  30     tcg_gen_shli_tl(tmp1, tmp1, 8);
  31     tcg_gen_ld8u_tl(v, cpu_env,
  32                     offsetof(CPUState, regs[glue(R_,REGLOW)]) +
  33                                             BYTE_OFFSET(cpu_env->regs[], 0));
  34     tcg_gen_or_tl(v, tmp1, v);
  35
  36     tcg_temp_free(tmp1);
  37 }
  38
  39 static inline void glue(gen_movb_v_,REGHIGH)(TCGv v)
  40 {
  41     tcg_gen_ld8u_tl(v, cpu_env,
  42                     offsetof(CPUState, regs[glue(R_,REGHIGH)]) +
  43                                             BYTE_OFFSET(cpu_env->regs[], 0));
  44 }
  45
  46 static inline void glue(gen_movb_v_,REGLOW)(TCGv v)
  47 {
  48     tcg_gen_ld8u_tl(v, cpu_env,
  49                     offsetof(CPUState, regs[glue(R_,REGLOW)]) +
  50                                             BYTE_OFFSET(cpu_env->regs[], 0));
  51 }
  52
  53 /* Stores */
  54
  55 static inline void glue(glue(gen_movw_,REGPAIR),_v)(TCGv v)
  56 {
  57     TCGv tmp1 = tcg_temp_new();
  58
  59     tcg_gen_shri_tl(tmp1, v, 8);
  60     tcg_gen_st8_tl(tmp1, cpu_env,
  61                    offsetof(CPUState, regs[glue(R_,REGHIGH)]) +
  62                                            BYTE_OFFSET(cpu_env->regs[], 0));
  63     tcg_gen_ext8u_tl(tmp1, v);
  64     tcg_gen_st8_tl(tmp1, cpu_env,
  65                    offsetof(CPUState, regs[glue(R_,REGLOW)]) +
  66                                            BYTE_OFFSET(cpu_env->regs[], 0));
  67
  68     tcg_temp_free(tmp1);
  69 }
  70
  71 static inline void glue(glue(gen_movb_,REGHIGH),_v)(TCGv v)
  72 {
  73     tcg_gen_st8_tl(v, cpu_env,
  74                    offsetof(CPUState, regs[glue(R_,REGHIGH)]) +
  75                                            BYTE_OFFSET(cpu_env->regs[], 0));
  76 }
  77
  78 static inline void glue(glue(gen_movb_,REGLOW),_v)(TCGv v)
  79 {
  80     tcg_gen_st8_tl(v, cpu_env,
  81                    offsetof(CPUState, regs[glue(R_,REGLOW)]) +
  82                                            BYTE_OFFSET(cpu_env->regs[], 0));
  83 }