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.
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
56 #define EXCP05_BOUND 6
57 #define EXCP06_ILLOP 7
60 #define EXCP09_XERR 10
62 #define EXCP0B_NOSEG 12
63 #define EXCP0C_STACK 13
65 #define EXCP0E_PAGE 15
66 #define EXCP10_COPR 17
67 #define EXCP11_ALGN 18
68 #define EXCP12_MCHK 19
70 #define EXCP_SIGNAL 256 /* async signal */
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) */
77 CC_OP_ADDB, /* modify all flags, CC_DST = res, CC_SRC = src1 */
81 CC_OP_SUBB, /* modify all flags, CC_DST = res, CC_SRC = src1 */
85 CC_OP_LOGICB, /* modify all flags, CC_DST = res */
89 CC_OP_INCB, /* modify all flags except, CC_DST = res */
93 CC_OP_DECB, /* modify all flags except, CC_DST = res */
97 CC_OP_SHLB, /* modify all flags, CC_DST = res, CC_SRC.lsb = C */
105 #define USE_X86LDOUBLE
108 #ifdef USE_X86LDOUBLE
109 typedef long double CPU86_LDouble;
111 typedef double CPU86_LDouble;
114 typedef struct CPUX86State {
115 /* standard registers */
117 uint32_t pc; /* cs_case + eip value */
120 /* emulator internal eflags handling */
124 int32_t df; /* D flag : 1 if D = 0, -1 if D = 1 */
127 uint8_t *segs_base[6];
130 unsigned int fpstt; /* top of stack index */
133 uint8_t fptags[8]; /* 0 = valid, 1 = empty */
134 CPU86_LDouble fpregs[8];
139 /* emulator internal variables */
143 /* exception handling */
148 static inline int ldub(void *ptr)
150 return *(uint8_t *)ptr;
153 static inline int ldsb(void *ptr)
155 return *(int8_t *)ptr;
158 static inline int lduw(void *ptr)
160 return *(uint16_t *)ptr;
163 static inline int ldsw(void *ptr)
165 return *(int16_t *)ptr;
168 static inline int ldl(void *ptr)
170 return *(uint32_t *)ptr;
173 static inline uint64_t ldq(void *ptr)
175 return *(uint64_t *)ptr;
178 static inline void stb(void *ptr, int v)
183 static inline void stw(void *ptr, int v)
185 *(uint16_t *)ptr = v;
188 static inline void stl(void *ptr, int v)
190 *(uint32_t *)ptr = v;
193 static inline void stq(void *ptr, int v)
195 *(uint64_t *)ptr = v;
200 static inline float ldfl(void *ptr)
202 return *(float *)ptr;
205 static inline double ldfq(void *ptr)
207 return *(double *)ptr;
210 static inline void stfl(void *ptr, float v)
215 static inline void stfq(void *ptr, double v)
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);
229 CPUX86State *cpu_x86_init(void);
230 int cpu_x86_exec(CPUX86State *s);
231 void cpu_x86_close(CPUX86State *s);
233 /* internal functions */
234 int cpu_x86_gen_code(uint8_t *gen_code_buf, int *gen_code_size_ptr,
237 #endif /* CPU_I386_H */