blob: 31b2bab069e844c932c77fe18da8e52ad3395bd5 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
/* arminit.c -- ARMulator initialization: ARM6 Instruction Emulator.
Copyright (C) 1994 Advanced RISC Machines Ltd.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include <cstring>
#include "core/mem_map.h"
#include "core/arm/skyeye_common/armdefs.h"
#include "core/arm/skyeye_common/armemu.h"
#include "core/arm/skyeye_common/vfp/vfp.h"
/***************************************************************************\
* Returns a new instantiation of the ARMulator's state *
\***************************************************************************/
ARMul_State* ARMul_NewState(ARMul_State* state)
{
state->Emulate = RUN;
state->Mode = USER32MODE;
state->lateabtSig = HIGH;
state->bigendSig = LOW;
return state;
}
/***************************************************************************\
* Call this routine to set ARMulator to model a certain processor *
\***************************************************************************/
void ARMul_SelectProcessor(ARMul_State* state, unsigned properties)
{
state->is_v4 = (properties & (ARM_v4_Prop | ARM_v5_Prop)) != 0;
state->is_v5 = (properties & ARM_v5_Prop) != 0;
state->is_v5e = (properties & ARM_v5e_Prop) != 0;
state->is_v6 = (properties & ARM_v6_Prop) != 0;
state->is_v7 = (properties & ARM_v7_Prop) != 0;
}
// Resets certain MPCore CP15 values to their ARM-defined reset values.
static void ResetMPCoreCP15Registers(ARMul_State* cpu)
{
// c0
cpu->CP15[CP15_MAIN_ID] = 0x410FB024;
cpu->CP15[CP15_TLB_TYPE] = 0x00000800;
cpu->CP15[CP15_PROCESSOR_FEATURE_0] = 0x00000111;
cpu->CP15[CP15_PROCESSOR_FEATURE_1] = 0x00000001;
cpu->CP15[CP15_DEBUG_FEATURE_0] = 0x00000002;
cpu->CP15[CP15_MEMORY_MODEL_FEATURE_0] = 0x01100103;
cpu->CP15[CP15_MEMORY_MODEL_FEATURE_1] = 0x10020302;
cpu->CP15[CP15_MEMORY_MODEL_FEATURE_2] = 0x01222000;
cpu->CP15[CP15_MEMORY_MODEL_FEATURE_3] = 0x00000000;
cpu->CP15[CP15_ISA_FEATURE_0] = 0x00100011;
cpu->CP15[CP15_ISA_FEATURE_1] = 0x12002111;
cpu->CP15[CP15_ISA_FEATURE_2] = 0x11221011;
cpu->CP15[CP15_ISA_FEATURE_3] = 0x01102131;
cpu->CP15[CP15_ISA_FEATURE_4] = 0x00000141;
// c1
cpu->CP15[CP15_CONTROL] = 0x00054078;
cpu->CP15[CP15_AUXILIARY_CONTROL] = 0x0000000F;
cpu->CP15[CP15_COPROCESSOR_ACCESS_CONTROL] = 0x00000000;
// c2
cpu->CP15[CP15_TRANSLATION_BASE_TABLE_0] = 0x00000000;
cpu->CP15[CP15_TRANSLATION_BASE_TABLE_1] = 0x00000000;
cpu->CP15[CP15_TRANSLATION_BASE_CONTROL] = 0x00000000;
// c3
cpu->CP15[CP15_DOMAIN_ACCESS_CONTROL] = 0x00000000;
// c7
cpu->CP15[CP15_PHYS_ADDRESS] = 0x00000000;
// c9
cpu->CP15[CP15_DATA_CACHE_LOCKDOWN] = 0xFFFFFFF0;
// c10
cpu->CP15[CP15_TLB_LOCKDOWN] = 0x00000000;
cpu->CP15[CP15_PRIMARY_REGION_REMAP] = 0x00098AA4;
cpu->CP15[CP15_NORMAL_REGION_REMAP] = 0x44E048E0;
// c13
cpu->CP15[CP15_PID] = 0x00000000;
cpu->CP15[CP15_CONTEXT_ID] = 0x00000000;
cpu->CP15[CP15_THREAD_UPRW] = 0x00000000;
cpu->CP15[CP15_THREAD_URO] = 0x00000000;
cpu->CP15[CP15_THREAD_PRW] = 0x00000000;
// c15
cpu->CP15[CP15_PERFORMANCE_MONITOR_CONTROL] = 0x00000000;
cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_VIRT_ADDRESS] = 0x00000000;
cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_PHYS_ADDRESS] = 0x00000000;
cpu->CP15[CP15_MAIN_TLB_LOCKDOWN_ATTRIBUTE] = 0x00000000;
cpu->CP15[CP15_TLB_DEBUG_CONTROL] = 0x00000000;
}
/***************************************************************************\
* Call this routine to set up the initial machine state (or perform a RESET *
\***************************************************************************/
void ARMul_Reset(ARMul_State* state)
{
VFPInit(state);
state->Reg[15] = 0;
state->Cpsr = INTBITS | SVC32MODE;
state->Mode = SVC32MODE;
state->Bank = SVCBANK;
ResetMPCoreCP15Registers(state);
state->NresetSig = HIGH;
state->NfiqSig = HIGH;
state->NirqSig = HIGH;
state->NtransSig = (state->Mode & 3) ? HIGH : LOW;
state->abortSig = LOW;
state->NumInstrs = 0;
}
|
