1 |
dpavlin |
1 |
/* |
2 |
|
|
* PearPC |
3 |
|
|
* ppc_cpu.h |
4 |
|
|
* |
5 |
|
|
* Copyright (C) 2003, 2004 Sebastian Biallas (sb@biallas.net) |
6 |
|
|
* |
7 |
|
|
* This program is free software; you can redistribute it and/or modify |
8 |
|
|
* it under the terms of the GNU General Public License version 2 as |
9 |
|
|
* published by the Free Software Foundation. |
10 |
|
|
* |
11 |
|
|
* This program 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 |
14 |
|
|
* GNU General Public License for more details. |
15 |
|
|
* |
16 |
|
|
* You should have received a copy of the GNU General Public License |
17 |
|
|
* along with this program; if not, write to the Free Software |
18 |
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
19 |
|
|
*/ |
20 |
|
|
|
21 |
|
|
#ifndef __PPC_CPU_H__ |
22 |
|
|
#define __PPC_CPU_H__ |
23 |
|
|
|
24 |
|
|
#include <stddef.h> |
25 |
|
|
#include "system/types.h" |
26 |
|
|
#include "cpu/common.h" |
27 |
|
|
|
28 |
|
|
#define PPC_MHz(v) ((v)*1000*1000) |
29 |
|
|
|
30 |
|
|
#define TB_TO_PTB_FACTOR 10 |
31 |
|
|
|
32 |
|
|
#define PPC_MODEL "ppc_model" |
33 |
|
|
#define PPC_CPU_MODEL "ppc_cpu" |
34 |
|
|
#define PPC_CLOCK_FREQUENCY PPC_MHz(10) |
35 |
|
|
#define PPC_BUS_FREQUENCY PPC_MHz(10) |
36 |
|
|
#define PPC_TIMEBASE_FREQUENCY (PPC_CLOCK_FREQUENCY / TB_TO_PTB_FACTOR) |
37 |
|
|
|
38 |
|
|
struct PPC_CPU_State { |
39 |
|
|
// * uisa |
40 |
|
|
uint32 gpr[32]; |
41 |
|
|
uint64 fpr[32]; |
42 |
|
|
uint32 cr; |
43 |
|
|
uint32 fpscr; |
44 |
|
|
uint32 xer; // spr 1 |
45 |
|
|
uint32 xer_ca; // carry from xer |
46 |
|
|
uint32 lr; // spr 8 |
47 |
|
|
uint32 ctr; // spr 9 |
48 |
|
|
// * oea |
49 |
|
|
uint32 msr; |
50 |
|
|
uint32 pvr; // spr 287 |
51 |
|
|
|
52 |
|
|
// * memory managment |
53 |
|
|
uint32 ibatu[4]; // spr 528, 530, 532, 534 |
54 |
|
|
uint32 ibatl[4]; // spr 529, 531, 533, 535 |
55 |
|
|
uint32 ibat_bl17[4]; // for internal use |
56 |
|
|
|
57 |
|
|
uint32 dbatu[4]; // spr 536, 538, 540, 542 |
58 |
|
|
uint32 dbatl[4]; // spr 537, 539, 541, 543 |
59 |
|
|
uint32 dbat_bl17[4]; // for internal use |
60 |
|
|
|
61 |
|
|
uint32 sdr1; // spr 25 (page table base address) |
62 |
|
|
|
63 |
|
|
uint32 sr[16]; |
64 |
|
|
|
65 |
|
|
// * exception handling |
66 |
|
|
uint32 dar; // spr 19 |
67 |
|
|
uint32 dsisr; // spr 18 |
68 |
|
|
uint32 sprg[4]; // spr 272-275 |
69 |
|
|
uint32 srr[2]; // spr 26-27 |
70 |
|
|
|
71 |
|
|
// * misc |
72 |
|
|
uint32 dec; // spr 22 |
73 |
|
|
uint32 ear; // spr 282 .101 |
74 |
|
|
uint32 pir; // spr 1032 |
75 |
|
|
uint64 tb; // .75 spr 284(l)/285(u) |
76 |
|
|
|
77 |
|
|
uint32 hid[16]; |
78 |
|
|
// * internal |
79 |
|
|
|
80 |
|
|
uint32 pc; |
81 |
|
|
uint32 npc; |
82 |
|
|
uint32 current_opc; |
83 |
|
|
bool exception_pending; |
84 |
|
|
bool dec_exception; |
85 |
|
|
bool ext_exception; |
86 |
|
|
bool stop_exception; |
87 |
|
|
bool singlestep_ignore; |
88 |
|
|
|
89 |
|
|
uint32 pagetable_base; |
90 |
|
|
int pagetable_hashmask; |
91 |
|
|
uint32 reserve; |
92 |
|
|
bool have_reservation; |
93 |
|
|
|
94 |
|
|
// for generic cpu core |
95 |
|
|
uint32 effective_code_page; |
96 |
|
|
byte *physical_code_page; |
97 |
|
|
uint64 pdec; // more precise version of dec |
98 |
|
|
uint64 ptb; // more precise version of tb |
99 |
|
|
|
100 |
|
|
// for altivec |
101 |
|
|
uint32 vscr; |
102 |
|
|
uint32 vrsave; // spr 256 |
103 |
|
|
Vector_t vr[36]; // <--- this MUST be 16-byte alligned |
104 |
|
|
uint32 vtemp; |
105 |
|
|
}; |
106 |
|
|
|
107 |
|
|
extern PPC_CPU_State gCPU; |
108 |
|
|
|
109 |
|
|
void ppc_cpu_atomic_raise_ext_exception(); |
110 |
|
|
void ppc_cpu_atomic_cancel_ext_exception(); |
111 |
|
|
|
112 |
|
|
extern uint32 gBreakpoint; |
113 |
|
|
extern uint32 gBreakpoint2; |
114 |
|
|
|
115 |
|
|
void ppc_set_singlestep_v(bool v, const char *file, int line, const char *format, ...); |
116 |
|
|
void ppc_set_singlestep_nonverbose(bool v); |
117 |
|
|
|
118 |
|
|
#endif |
119 |
|
|
|