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Diffstat (limited to 'target-i386/exec.h')
| -rw-r--r-- | target-i386/exec.h | 416 |
1 files changed, 416 insertions, 0 deletions
diff --git a/target-i386/exec.h b/target-i386/exec.h new file mode 100644 index 0000000000..b53928c98e --- /dev/null +++ b/target-i386/exec.h @@ -0,0 +1,416 @@ +/* + * i386 execution defines + * + * Copyright (c) 2003 Fabrice Bellard + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#include "dyngen-exec.h" + +/* at least 4 register variables are defines */ +register struct CPUX86State *env asm(AREG0); +register uint32_t T0 asm(AREG1); +register uint32_t T1 asm(AREG2); +register uint32_t T2 asm(AREG3); + +#define A0 T2 + +/* if more registers are available, we define some registers too */ +#ifdef AREG4 +register uint32_t EAX asm(AREG4); +#define reg_EAX +#endif + +#ifdef AREG5 +register uint32_t ESP asm(AREG5); +#define reg_ESP +#endif + +#ifdef AREG6 +register uint32_t EBP asm(AREG6); +#define reg_EBP +#endif + +#ifdef AREG7 +register uint32_t ECX asm(AREG7); +#define reg_ECX +#endif + +#ifdef AREG8 +register uint32_t EDX asm(AREG8); +#define reg_EDX +#endif + +#ifdef AREG9 +register uint32_t EBX asm(AREG9); +#define reg_EBX +#endif + +#ifdef AREG10 +register uint32_t ESI asm(AREG10); +#define reg_ESI +#endif + +#ifdef AREG11 +register uint32_t EDI asm(AREG11); +#define reg_EDI +#endif + +extern FILE *logfile; +extern int loglevel; + +#ifndef reg_EAX +#define EAX (env->regs[R_EAX]) +#endif +#ifndef reg_ECX +#define ECX (env->regs[R_ECX]) +#endif +#ifndef reg_EDX +#define EDX (env->regs[R_EDX]) +#endif +#ifndef reg_EBX +#define EBX (env->regs[R_EBX]) +#endif +#ifndef reg_ESP +#define ESP (env->regs[R_ESP]) +#endif +#ifndef reg_EBP +#define EBP (env->regs[R_EBP]) +#endif +#ifndef reg_ESI +#define ESI (env->regs[R_ESI]) +#endif +#ifndef reg_EDI +#define EDI (env->regs[R_EDI]) +#endif +#define EIP (env->eip) +#define DF (env->df) + +#define CC_SRC (env->cc_src) +#define CC_DST (env->cc_dst) +#define CC_OP (env->cc_op) + +/* float macros */ +#define FT0 (env->ft0) +#define ST0 (env->fpregs[env->fpstt]) +#define ST(n) (env->fpregs[(env->fpstt + (n)) & 7]) +#define ST1 ST(1) + +#ifdef USE_FP_CONVERT +#define FP_CONVERT (env->fp_convert) +#endif + +#include "cpu.h" +#include "exec-all.h" + +typedef struct CCTable { + int (*compute_all)(void); /* return all the flags */ + int (*compute_c)(void); /* return the C flag */ +} CCTable; + +extern CCTable cc_table[]; + +void load_seg(int seg_reg, int selector, unsigned cur_eip); +void helper_ljmp_protected_T0_T1(void); +void helper_lcall_real_T0_T1(int shift, int next_eip); +void helper_lcall_protected_T0_T1(int shift, int next_eip); +void helper_iret_real(int shift); +void helper_iret_protected(int shift); +void helper_lret_protected(int shift, int addend); +void helper_lldt_T0(void); +void helper_ltr_T0(void); +void helper_movl_crN_T0(int reg); +void helper_movl_drN_T0(int reg); +void helper_invlpg(unsigned int addr); +void cpu_x86_update_cr0(CPUX86State *env); +void cpu_x86_update_cr3(CPUX86State *env); +void cpu_x86_flush_tlb(CPUX86State *env, uint32_t addr); +int cpu_x86_handle_mmu_fault(CPUX86State *env, uint32_t addr, int is_write); +void tlb_fill(unsigned long addr, int is_write, void *retaddr); +void __hidden cpu_lock(void); +void __hidden cpu_unlock(void); +void do_interrupt(int intno, int is_int, int error_code, + unsigned int next_eip, int is_hw); +void do_interrupt_user(int intno, int is_int, int error_code, + unsigned int next_eip); +void raise_interrupt(int intno, int is_int, int error_code, + unsigned int next_eip); +void raise_exception_err(int exception_index, int error_code); +void raise_exception(int exception_index); +void __hidden cpu_loop_exit(void); +void helper_fsave(uint8_t *ptr, int data32); +void helper_frstor(uint8_t *ptr, int data32); + +void OPPROTO op_movl_eflags_T0(void); +void OPPROTO op_movl_T0_eflags(void); +void raise_interrupt(int intno, int is_int, int error_code, + unsigned int next_eip); +void raise_exception_err(int exception_index, int error_code); +void raise_exception(int exception_index); +void helper_divl_EAX_T0(uint32_t eip); +void helper_idivl_EAX_T0(uint32_t eip); +void helper_cmpxchg8b(void); +void helper_cpuid(void); +void helper_rdtsc(void); +void helper_rdmsr(void); +void helper_wrmsr(void); +void helper_lsl(void); +void helper_lar(void); + +#ifdef USE_X86LDOUBLE +/* use long double functions */ +#define lrint lrintl +#define llrint llrintl +#define fabs fabsl +#define sin sinl +#define cos cosl +#define sqrt sqrtl +#define pow powl +#define log logl +#define tan tanl +#define atan2 atan2l +#define floor floorl +#define ceil ceill +#define rint rintl +#endif + +extern int lrint(CPU86_LDouble x); +extern int64_t llrint(CPU86_LDouble x); +extern CPU86_LDouble fabs(CPU86_LDouble x); +extern CPU86_LDouble sin(CPU86_LDouble x); +extern CPU86_LDouble cos(CPU86_LDouble x); +extern CPU86_LDouble sqrt(CPU86_LDouble x); +extern CPU86_LDouble pow(CPU86_LDouble, CPU86_LDouble); +extern CPU86_LDouble log(CPU86_LDouble x); +extern CPU86_LDouble tan(CPU86_LDouble x); +extern CPU86_LDouble atan2(CPU86_LDouble, CPU86_LDouble); +extern CPU86_LDouble floor(CPU86_LDouble x); +extern CPU86_LDouble ceil(CPU86_LDouble x); +extern CPU86_LDouble rint(CPU86_LDouble x); + +#define RC_MASK 0xc00 +#define RC_NEAR 0x000 +#define RC_DOWN 0x400 +#define RC_UP 0x800 +#define RC_CHOP 0xc00 + +#define MAXTAN 9223372036854775808.0 + +#ifdef __arm__ +/* we have no way to do correct rounding - a FPU emulator is needed */ +#define FE_DOWNWARD FE_TONEAREST +#define FE_UPWARD FE_TONEAREST +#define FE_TOWARDZERO FE_TONEAREST +#endif + +#ifdef USE_X86LDOUBLE + +/* only for x86 */ +typedef union { + long double d; + struct { + unsigned long long lower; + unsigned short upper; + } l; +} CPU86_LDoubleU; + +/* the following deal with x86 long double-precision numbers */ +#define MAXEXPD 0x7fff +#define EXPBIAS 16383 +#define EXPD(fp) (fp.l.upper & 0x7fff) +#define SIGND(fp) ((fp.l.upper) & 0x8000) +#define MANTD(fp) (fp.l.lower) +#define BIASEXPONENT(fp) fp.l.upper = (fp.l.upper & ~(0x7fff)) | EXPBIAS + +#else + +/* NOTE: arm is horrible as double 32 bit words are stored in big endian ! */ +typedef union { + double d; +#if !defined(WORDS_BIGENDIAN) && !defined(__arm__) + struct { + uint32_t lower; + int32_t upper; + } l; +#else + struct { + int32_t upper; + uint32_t lower; + } l; +#endif +#ifndef __arm__ + int64_t ll; +#endif +} CPU86_LDoubleU; + +/* the following deal with IEEE double-precision numbers */ +#define MAXEXPD 0x7ff +#define EXPBIAS 1023 +#define EXPD(fp) (((fp.l.upper) >> 20) & 0x7FF) +#define SIGND(fp) ((fp.l.upper) & 0x80000000) +#ifdef __arm__ +#define MANTD(fp) (fp.l.lower | ((uint64_t)(fp.l.upper & ((1 << 20) - 1)) << 32)) +#else +#define MANTD(fp) (fp.ll & ((1LL << 52) - 1)) +#endif +#define BIASEXPONENT(fp) fp.l.upper = (fp.l.upper & ~(0x7ff << 20)) | (EXPBIAS << 20) +#endif + +static inline void fpush(void) +{ + env->fpstt = (env->fpstt - 1) & 7; + env->fptags[env->fpstt] = 0; /* validate stack entry */ +} + +static inline void fpop(void) +{ + env->fptags[env->fpstt] = 1; /* invvalidate stack entry */ + env->fpstt = (env->fpstt + 1) & 7; +} + +#ifndef USE_X86LDOUBLE +static inline CPU86_LDouble helper_fldt(uint8_t *ptr) +{ + CPU86_LDoubleU temp; + int upper, e; + uint64_t ll; + + /* mantissa */ + upper = lduw(ptr + 8); + /* XXX: handle overflow ? */ + e = (upper & 0x7fff) - 16383 + EXPBIAS; /* exponent */ + e |= (upper >> 4) & 0x800; /* sign */ + ll = (ldq(ptr) >> 11) & ((1LL << 52) - 1); +#ifdef __arm__ + temp.l.upper = (e << 20) | (ll >> 32); + temp.l.lower = ll; +#else + temp.ll = ll | ((uint64_t)e << 52); +#endif + return temp.d; +} + +static inline void helper_fstt(CPU86_LDouble f, uint8_t *ptr) +{ + CPU86_LDoubleU temp; + int e; + + temp.d = f; + /* mantissa */ + stq(ptr, (MANTD(temp) << 11) | (1LL << 63)); + /* exponent + sign */ + e = EXPD(temp) - EXPBIAS + 16383; + e |= SIGND(temp) >> 16; + stw(ptr + 8, e); +} +#endif + +const CPU86_LDouble f15rk[7]; + +void helper_fldt_ST0_A0(void); +void helper_fstt_ST0_A0(void); +void helper_fbld_ST0_A0(void); +void helper_fbst_ST0_A0(void); +void helper_f2xm1(void); +void helper_fyl2x(void); +void helper_fptan(void); +void helper_fpatan(void); +void helper_fxtract(void); +void helper_fprem1(void); +void helper_fprem(void); +void helper_fyl2xp1(void); +void helper_fsqrt(void); +void helper_fsincos(void); +void helper_frndint(void); +void helper_fscale(void); +void helper_fsin(void); +void helper_fcos(void); +void helper_fxam_ST0(void); +void helper_fstenv(uint8_t *ptr, int data32); +void helper_fldenv(uint8_t *ptr, int data32); +void helper_fsave(uint8_t *ptr, int data32); +void helper_frstor(uint8_t *ptr, int data32); + +const uint8_t parity_table[256]; +const uint8_t rclw_table[32]; +const uint8_t rclb_table[32]; + +static inline uint32_t compute_eflags(void) +{ + return env->eflags | cc_table[CC_OP].compute_all() | (DF & DF_MASK); +} + +#define FL_UPDATE_MASK32 (TF_MASK | AC_MASK | ID_MASK) + +#define FL_UPDATE_CPL0_MASK (TF_MASK | IF_MASK | IOPL_MASK | NT_MASK | \ + RF_MASK | AC_MASK | ID_MASK) + +/* NOTE: CC_OP must be modified manually to CC_OP_EFLAGS */ +static inline void load_eflags(int eflags, int update_mask) +{ + CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); + DF = 1 - (2 * ((eflags >> 10) & 1)); + env->eflags = (env->eflags & ~update_mask) | + (eflags & update_mask); +} + +/* memory access macros */ + +#define ldul ldl +#define lduq ldq +#define ldul_user ldl_user +#define ldul_kernel ldl_kernel + +#define ldub_raw ldub +#define ldsb_raw ldsb +#define lduw_raw lduw +#define ldsw_raw ldsw +#define ldl_raw ldl +#define ldq_raw ldq + +#define stb_raw stb +#define stw_raw stw +#define stl_raw stl +#define stq_raw stq + +#define MEMUSER 0 +#define DATA_SIZE 1 +#include "softmmu_header.h" + +#define DATA_SIZE 2 +#include "softmmu_header.h" + +#define DATA_SIZE 4 +#include "softmmu_header.h" + +#define DATA_SIZE 8 +#include "softmmu_header.h" + +#undef MEMUSER +#define MEMUSER 1 +#define DATA_SIZE 1 +#include "softmmu_header.h" + +#define DATA_SIZE 2 +#include "softmmu_header.h" + +#define DATA_SIZE 4 +#include "softmmu_header.h" + +#define DATA_SIZE 8 +#include "softmmu_header.h" + +#undef MEMUSER + |