/* NOTE: this header is included in op-i386.c where global register variable are used. Care must be used when including glibc headers. */ #ifndef CPU_I386_H #define CPU_I386_H #include <setjmp.h> #define R_EAX 0 #define R_ECX 1 #define R_EDX 2 #define R_EBX 3 #define R_ESP 4 #define R_EBP 5 #define R_ESI 6 #define R_EDI 7 #define R_AL 0 #define R_CL 1 #define R_DL 2 #define R_BL 3 #define R_AH 4 #define R_CH 5 #define R_DH 6 #define R_BH 7 #define R_ES 0 #define R_CS 1 #define R_SS 2 #define R_DS 3 #define R_FS 4 #define R_GS 5 #define CC_C 0x0001 #define CC_P 0x0004 #define CC_A 0x0010 #define CC_Z 0x0040 #define CC_S 0x0080 #define CC_O 0x0800 #define TRAP_FLAG 0x0100 #define INTERRUPT_FLAG 0x0200 #define DIRECTION_FLAG 0x0400 #define IOPL_FLAG_MASK 0x3000 #define NESTED_FLAG 0x4000 #define BYTE_FL 0x8000 /* Intel reserved! */ #define RF_FLAG 0x10000 #define VM_FLAG 0x20000 /* AC 0x40000 */ #define EXCP00_DIVZ 1 #define EXCP01_SSTP 2 #define EXCP02_NMI 3 #define EXCP03_INT3 4 #define EXCP04_INTO 5 #define EXCP05_BOUND 6 #define EXCP06_ILLOP 7 #define EXCP07_PREX 8 #define EXCP08_DBLE 9 #define EXCP09_XERR 10 #define EXCP0A_TSS 11 #define EXCP0B_NOSEG 12 #define EXCP0C_STACK 13 #define EXCP0D_GPF 14 #define EXCP0E_PAGE 15 #define EXCP10_COPR 17 #define EXCP11_ALGN 18 #define EXCP12_MCHK 19 #define EXCP_SIGNAL 256 /* async signal */ enum { CC_OP_DYNAMIC, /* must use dynamic code to get cc_op */ CC_OP_EFLAGS, /* all cc are explicitely computed, CC_SRC = flags */ CC_OP_MUL, /* modify all flags, C, O = (CC_SRC != 0) */ CC_OP_ADDB, /* modify all flags, CC_DST = res, CC_SRC = src1 */ CC_OP_ADDW, CC_OP_ADDL, CC_OP_ADCB, /* modify all flags, CC_DST = res, CC_SRC = src1 */ CC_OP_ADCW, CC_OP_ADCL, CC_OP_SUBB, /* modify all flags, CC_DST = res, CC_SRC = src1 */ CC_OP_SUBW, CC_OP_SUBL, CC_OP_SBBB, /* modify all flags, CC_DST = res, CC_SRC = src1 */ CC_OP_SBBW, CC_OP_SBBL, CC_OP_LOGICB, /* modify all flags, CC_DST = res */ CC_OP_LOGICW, CC_OP_LOGICL, CC_OP_INCB, /* modify all flags except, CC_DST = res, CC_SRC = C */ CC_OP_INCW, CC_OP_INCL, CC_OP_DECB, /* modify all flags except, CC_DST = res, CC_SRC = C */ CC_OP_DECW, CC_OP_DECL, CC_OP_SHLB, /* modify all flags, CC_DST = res, CC_SRC.lsb = C */ CC_OP_SHLW, CC_OP_SHLL, CC_OP_SARB, /* modify all flags, CC_DST = res, CC_SRC.lsb = C */ CC_OP_SARW, CC_OP_SARL, CC_OP_NB, }; #ifdef __i386__ #define USE_X86LDOUBLE #endif #ifdef USE_X86LDOUBLE typedef long double CPU86_LDouble; #else typedef double CPU86_LDouble; #endif typedef struct CPUX86State { /* standard registers */ uint32_t regs[8]; uint32_t pc; /* cs_case + eip value */ uint32_t eflags; /* emulator internal eflags handling */ uint32_t cc_src; uint32_t cc_dst; uint32_t cc_op; int32_t df; /* D flag : 1 if D = 0, -1 if D = 1 */ /* segments */ uint8_t *segs_base[6]; /* FPU state */ unsigned int fpstt; /* top of stack index */ unsigned int fpus; unsigned int fpuc; uint8_t fptags[8]; /* 0 = valid, 1 = empty */ CPU86_LDouble fpregs[8]; /* segments */ uint32_t segs[6]; /* emulator internal variables */ CPU86_LDouble ft0; /* exception handling */ jmp_buf jmp_env; int exception_index; } CPUX86State; static inline int ldub(void *ptr) { return *(uint8_t *)ptr; } static inline int ldsb(void *ptr) { return *(int8_t *)ptr; } static inline int lduw(void *ptr) { return *(uint16_t *)ptr; } static inline int ldsw(void *ptr) { return *(int16_t *)ptr; } static inline int ldl(void *ptr) { return *(uint32_t *)ptr; } static inline uint64_t ldq(void *ptr) { return *(uint64_t *)ptr; } static inline void stb(void *ptr, int v) { *(uint8_t *)ptr = v; } static inline void stw(void *ptr, int v) { *(uint16_t *)ptr = v; } static inline void stl(void *ptr, int v) { *(uint32_t *)ptr = v; } static inline void stq(void *ptr, int v) { *(uint64_t *)ptr = v; } /* float access */ static inline float ldfl(void *ptr) { return *(float *)ptr; } static inline double ldfq(void *ptr) { return *(double *)ptr; } static inline void stfl(void *ptr, float v) { *(float *)ptr = v; } static inline void stfq(void *ptr, double v) { *(double *)ptr = v; } #ifndef IN_OP_I386 void cpu_x86_outb(int addr, int val); void cpu_x86_outw(int addr, int val); void cpu_x86_outl(int addr, int val); int cpu_x86_inb(int addr); int cpu_x86_inw(int addr); int cpu_x86_inl(int addr); #endif CPUX86State *cpu_x86_init(void); int cpu_x86_exec(CPUX86State *s); void cpu_x86_close(CPUX86State *s); /* internal functions */ int cpu_x86_gen_code(uint8_t *gen_code_buf, int *gen_code_size_ptr, uint8_t *pc_start); #endif /* CPU_I386_H */