root / cpu-i386.h @ 0ecfa993
History | View | Annotate | Download (4.5 kB)
1 |
/* NOTE: this header is included in op-i386.c where global register
|
---|---|
2 |
variable are used. Care must be used when including glibc headers.
|
3 |
*/
|
4 |
#ifndef CPU_I386_H
|
5 |
#define CPU_I386_H
|
6 |
|
7 |
#include <setjmp.h> |
8 |
|
9 |
#define R_EAX 0 |
10 |
#define R_ECX 1 |
11 |
#define R_EDX 2 |
12 |
#define R_EBX 3 |
13 |
#define R_ESP 4 |
14 |
#define R_EBP 5 |
15 |
#define R_ESI 6 |
16 |
#define R_EDI 7 |
17 |
|
18 |
#define R_AL 0 |
19 |
#define R_CL 1 |
20 |
#define R_DL 2 |
21 |
#define R_BL 3 |
22 |
#define R_AH 4 |
23 |
#define R_CH 5 |
24 |
#define R_DH 6 |
25 |
#define R_BH 7 |
26 |
|
27 |
#define R_ES 0 |
28 |
#define R_CS 1 |
29 |
#define R_SS 2 |
30 |
#define R_DS 3 |
31 |
#define R_FS 4 |
32 |
#define R_GS 5 |
33 |
|
34 |
#define CC_C 0x0001 |
35 |
#define CC_P 0x0004 |
36 |
#define CC_A 0x0010 |
37 |
#define CC_Z 0x0040 |
38 |
#define CC_S 0x0080 |
39 |
#define CC_O 0x0800 |
40 |
|
41 |
#define TRAP_FLAG 0x0100 |
42 |
#define INTERRUPT_FLAG 0x0200 |
43 |
#define DIRECTION_FLAG 0x0400 |
44 |
#define IOPL_FLAG_MASK 0x3000 |
45 |
#define NESTED_FLAG 0x4000 |
46 |
#define BYTE_FL 0x8000 /* Intel reserved! */ |
47 |
#define RF_FLAG 0x10000 |
48 |
#define VM_FLAG 0x20000 |
49 |
/* AC 0x40000 */
|
50 |
|
51 |
#define EXCP00_DIVZ 1 |
52 |
#define EXCP01_SSTP 2 |
53 |
#define EXCP02_NMI 3 |
54 |
#define EXCP03_INT3 4 |
55 |
#define EXCP04_INTO 5 |
56 |
#define EXCP05_BOUND 6 |
57 |
#define EXCP06_ILLOP 7 |
58 |
#define EXCP07_PREX 8 |
59 |
#define EXCP08_DBLE 9 |
60 |
#define EXCP09_XERR 10 |
61 |
#define EXCP0A_TSS 11 |
62 |
#define EXCP0B_NOSEG 12 |
63 |
#define EXCP0C_STACK 13 |
64 |
#define EXCP0D_GPF 14 |
65 |
#define EXCP0E_PAGE 15 |
66 |
#define EXCP10_COPR 17 |
67 |
#define EXCP11_ALGN 18 |
68 |
#define EXCP12_MCHK 19 |
69 |
|
70 |
#define EXCP_SIGNAL 256 /* async signal */ |
71 |
|
72 |
enum {
|
73 |
CC_OP_DYNAMIC, /* must use dynamic code to get cc_op */
|
74 |
CC_OP_EFLAGS, /* all cc are explicitely computed, CC_SRC = flags */
|
75 |
CC_OP_MUL, /* modify all flags, C, O = (CC_SRC != 0) */
|
76 |
|
77 |
CC_OP_ADDB, /* modify all flags, CC_DST = res, CC_SRC = src1 */
|
78 |
CC_OP_ADDW, |
79 |
CC_OP_ADDL, |
80 |
|
81 |
CC_OP_SUBB, /* modify all flags, CC_DST = res, CC_SRC = src1 */
|
82 |
CC_OP_SUBW, |
83 |
CC_OP_SUBL, |
84 |
|
85 |
CC_OP_LOGICB, /* modify all flags, CC_DST = res */
|
86 |
CC_OP_LOGICW, |
87 |
CC_OP_LOGICL, |
88 |
|
89 |
CC_OP_INCB, /* modify all flags except, CC_DST = res */
|
90 |
CC_OP_INCW, |
91 |
CC_OP_INCL, |
92 |
|
93 |
CC_OP_DECB, /* modify all flags except, CC_DST = res */
|
94 |
CC_OP_DECW, |
95 |
CC_OP_DECL, |
96 |
|
97 |
CC_OP_SHLB, /* modify all flags, CC_DST = res, CC_SRC.lsb = C */
|
98 |
CC_OP_SHLW, |
99 |
CC_OP_SHLL, |
100 |
|
101 |
CC_OP_NB, |
102 |
}; |
103 |
|
104 |
#ifdef __i386__
|
105 |
#define USE_X86LDOUBLE
|
106 |
#endif
|
107 |
|
108 |
#ifdef USE_X86LDOUBLE
|
109 |
typedef long double CPU86_LDouble; |
110 |
#else
|
111 |
typedef double CPU86_LDouble; |
112 |
#endif
|
113 |
|
114 |
typedef struct CPUX86State { |
115 |
/* standard registers */
|
116 |
uint32_t regs[8];
|
117 |
uint32_t pc; /* cs_case + eip value */
|
118 |
uint32_t eflags; |
119 |
|
120 |
/* emulator internal eflags handling */
|
121 |
uint32_t cc_src; |
122 |
uint32_t cc_dst; |
123 |
uint32_t cc_op; |
124 |
int32_t df; /* D flag : 1 if D = 0, -1 if D = 1 */
|
125 |
|
126 |
/* segments */
|
127 |
uint8_t *segs_base[6];
|
128 |
|
129 |
/* FPU state */
|
130 |
unsigned int fpstt; /* top of stack index */ |
131 |
unsigned int fpus; |
132 |
unsigned int fpuc; |
133 |
uint8_t fptags[8]; /* 0 = valid, 1 = empty */ |
134 |
CPU86_LDouble fpregs[8];
|
135 |
|
136 |
/* segments */
|
137 |
uint32_t segs[6];
|
138 |
|
139 |
/* emulator internal variables */
|
140 |
|
141 |
CPU86_LDouble ft0; |
142 |
|
143 |
/* exception handling */
|
144 |
jmp_buf jmp_env; |
145 |
int exception_index;
|
146 |
} CPUX86State; |
147 |
|
148 |
static inline int ldub(void *ptr) |
149 |
{ |
150 |
return *(uint8_t *)ptr;
|
151 |
} |
152 |
|
153 |
static inline int ldsb(void *ptr) |
154 |
{ |
155 |
return *(int8_t *)ptr;
|
156 |
} |
157 |
|
158 |
static inline int lduw(void *ptr) |
159 |
{ |
160 |
return *(uint16_t *)ptr;
|
161 |
} |
162 |
|
163 |
static inline int ldsw(void *ptr) |
164 |
{ |
165 |
return *(int16_t *)ptr;
|
166 |
} |
167 |
|
168 |
static inline int ldl(void *ptr) |
169 |
{ |
170 |
return *(uint32_t *)ptr;
|
171 |
} |
172 |
|
173 |
static inline uint64_t ldq(void *ptr) |
174 |
{ |
175 |
return *(uint64_t *)ptr;
|
176 |
} |
177 |
|
178 |
static inline void stb(void *ptr, int v) |
179 |
{ |
180 |
*(uint8_t *)ptr = v; |
181 |
} |
182 |
|
183 |
static inline void stw(void *ptr, int v) |
184 |
{ |
185 |
*(uint16_t *)ptr = v; |
186 |
} |
187 |
|
188 |
static inline void stl(void *ptr, int v) |
189 |
{ |
190 |
*(uint32_t *)ptr = v; |
191 |
} |
192 |
|
193 |
static inline void stq(void *ptr, int v) |
194 |
{ |
195 |
*(uint64_t *)ptr = v; |
196 |
} |
197 |
|
198 |
/* float access */
|
199 |
|
200 |
static inline float ldfl(void *ptr) |
201 |
{ |
202 |
return *(float *)ptr; |
203 |
} |
204 |
|
205 |
static inline double ldfq(void *ptr) |
206 |
{ |
207 |
return *(double *)ptr; |
208 |
} |
209 |
|
210 |
static inline void stfl(void *ptr, float v) |
211 |
{ |
212 |
*(float *)ptr = v;
|
213 |
} |
214 |
|
215 |
static inline void stfq(void *ptr, double v) |
216 |
{ |
217 |
*(double *)ptr = v;
|
218 |
} |
219 |
|
220 |
#ifndef IN_OP_I386
|
221 |
void cpu_x86_outb(int addr, int val); |
222 |
void cpu_x86_outw(int addr, int val); |
223 |
void cpu_x86_outl(int addr, int val); |
224 |
int cpu_x86_inb(int addr); |
225 |
int cpu_x86_inw(int addr); |
226 |
int cpu_x86_inl(int addr); |
227 |
#endif
|
228 |
|
229 |
CPUX86State *cpu_x86_init(void);
|
230 |
int cpu_x86_exec(CPUX86State *s);
|
231 |
void cpu_x86_close(CPUX86State *s);
|
232 |
|
233 |
/* internal functions */
|
234 |
int cpu_x86_gen_code(uint8_t *gen_code_buf, int *gen_code_size_ptr, |
235 |
uint8_t *pc_start); |
236 |
|
237 |
#endif /* CPU_I386_H */ |