OpenCores
URL https://opencores.org/ocsvn/ao486/ao486/trunk

Subversion Repositories ao486

[/] [ao486/] [trunk/] [bochs486/] [cpu/] [data_xfer8.cc] - Blame information for rev 2

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 2 alfik
/////////////////////////////////////////////////////////////////////////
2
// $Id: data_xfer8.cc 11313 2012-08-05 13:52:40Z sshwarts $
3
/////////////////////////////////////////////////////////////////////////
4
//
5
//  Copyright (C) 2001-2012  The Bochs Project
6
//
7
//  This library is free software; you can redistribute it and/or
8
//  modify it under the terms of the GNU Lesser General Public
9
//  License as published by the Free Software Foundation; either
10
//  version 2 of the License, or (at your option) any later version.
11
//
12
//  This library is distributed in the hope that it will be useful,
13
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
14
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15
//  Lesser General Public License for more details.
16
//
17
//  You should have received a copy of the GNU Lesser General Public
18
//  License along with this library; if not, write to the Free Software
19
//  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA B 02110-1301 USA
20
/////////////////////////////////////////////////////////////////////////
21
 
22
#define NEED_CPU_REG_SHORTCUTS 1
23
#include "bochs.h"
24
#include "cpu.h"
25
#define LOG_THIS BX_CPU_THIS_PTR
26
 
27
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOV_RLIb(bxInstruction_c *i)
28
{
29
  BX_WRITE_8BIT_REGx(i->dst(), i->extend8bitL(), i->Ib());
30
 
31
  BX_NEXT_INSTR(i);
32
}
33
 
34
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOV_RHIb(bxInstruction_c *i)
35
{
36
  BX_WRITE_8BIT_REGH(i->dst() & 0x3, i->Ib());
37
 
38
  BX_NEXT_INSTR(i);
39
}
40
 
41
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOV_EbGbM(bxInstruction_c *i)
42
{
43
  bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
44
 
45
  write_virtual_byte(i->seg(), eaddr, BX_READ_8BIT_REGx(i->src(), i->extend8bitL()));
46
 
47
  BX_NEXT_INSTR(i);
48
}
49
 
50
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOV_GbEbM(bxInstruction_c *i)
51
{
52
  bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
53
 
54
  Bit8u val8 = read_virtual_byte(i->seg(), eaddr);
55
  BX_WRITE_8BIT_REGx(i->dst(), i->extend8bitL(), val8);
56
 
57
  BX_NEXT_INSTR(i);
58
}
59
 
60
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOV_GbEbR(bxInstruction_c *i)
61
{
62
  Bit8u op2 = BX_READ_8BIT_REGx(i->src(), i->extend8bitL());
63
  BX_WRITE_8BIT_REGx(i->dst(), i->extend8bitL(), op2);
64
 
65
  BX_NEXT_INSTR(i);
66
}
67
 
68
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOV_ALOd(bxInstruction_c *i)
69
{
70
  AL = read_virtual_byte_32(i->seg(), i->Id());
71
 
72
  BX_NEXT_INSTR(i);
73
}
74
 
75
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOV_OdAL(bxInstruction_c *i)
76
{
77
  write_virtual_byte_32(i->seg(), i->Id(), AL);
78
 
79
  BX_NEXT_INSTR(i);
80
}
81
 
82
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::MOV_EbIbM(bxInstruction_c *i)
83
{
84
  bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
85
 
86
  write_virtual_byte(i->seg(), eaddr, i->Ib());
87
 
88
  BX_NEXT_INSTR(i);
89
}
90
 
91
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::XLAT(bxInstruction_c *i)
92
{
93
#if BX_SUPPORT_X86_64
94
  if (i->as64L()) {
95
    AL = read_virtual_byte_64(i->seg(), RBX + AL);
96
  }
97
  else
98
#endif
99
  if (i->as32L()) {
100
    AL = read_virtual_byte(i->seg(), (Bit32u) (EBX + AL));
101
  }
102
  else {
103
    AL = read_virtual_byte_32(i->seg(), (Bit16u) (BX + AL));
104
  }
105
 
106
  BX_NEXT_INSTR(i);
107
}
108
 
109
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::XCHG_EbGbM(bxInstruction_c *i)
110
{
111
  bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
112
 
113
  Bit8u op1 = read_RMW_virtual_byte(i->seg(), eaddr);
114
  Bit8u op2 = BX_READ_8BIT_REGx(i->src(), i->extend8bitL());
115
 
116
  write_RMW_virtual_byte(op2);
117
  BX_WRITE_8BIT_REGx(i->src(), i->extend8bitL(), op1);
118
 
119
  BX_NEXT_INSTR(i);
120
}
121
 
122
BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::XCHG_EbGbR(bxInstruction_c *i)
123
{
124
  Bit8u op1 = BX_READ_8BIT_REGx(i->dst(), i->extend8bitL());
125
  Bit8u op2 = BX_READ_8BIT_REGx(i->src(), i->extend8bitL());
126
 
127
  BX_WRITE_8BIT_REGx(i->src(), i->extend8bitL(), op1);
128
  BX_WRITE_8BIT_REGx(i->dst(), i->extend8bitL(), op2);
129
 
130
  BX_NEXT_INSTR(i);
131
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.