///////////////////////////////////////////////////////////////////////// // $Id: cpu.h,v 1.123.2.1 2003/01/17 21:35:46 cbothamy Exp $ ///////////////////////////////////////////////////////////////////////// // // Copyright (C) 2001 MandrakeSoft S.A. // // MandrakeSoft S.A. // 43, rue d'Aboukir // 75002 Paris - France // http://www.linux-mandrake.com/ // http://www.mandrakesoft.com/ // // 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 #ifndef BX_CPU_H # define BX_CPU_H 1 #include #include "cpu/lazy_flags.h" // segment register encoding #define BX_SEG_REG_ES 0 #define BX_SEG_REG_CS 1 #define BX_SEG_REG_SS 2 #define BX_SEG_REG_DS 3 #define BX_SEG_REG_FS 4 #define BX_SEG_REG_GS 5 // NULL now has to fit in 3 bits. #define BX_SEG_REG_NULL 7 #define BX_NULL_SEG_REG(seg) ((seg) == BX_SEG_REG_NULL) #ifdef BX_LITTLE_ENDIAN #define BX_REG8L_OFFSET 0 #define BX_REG8H_OFFSET 1 #define BX_REG16_OFFSET 0 #else // BX_BIG_ENDIAN #define BX_REG8L_OFFSET 3 #define BX_REG8H_OFFSET 2 #define BX_REG16_OFFSET 2 #endif // ifdef BX_LITTLE_ENDIAN #define BX_8BIT_REG_AL 0 #define BX_8BIT_REG_CL 1 #define BX_8BIT_REG_DL 2 #define BX_8BIT_REG_BL 3 #define BX_8BIT_REG_AH 4 #define BX_8BIT_REG_CH 5 #define BX_8BIT_REG_DH 6 #define BX_8BIT_REG_BH 7 #define BX_16BIT_REG_AX 0 #define BX_16BIT_REG_CX 1 #define BX_16BIT_REG_DX 2 #define BX_16BIT_REG_BX 3 #define BX_16BIT_REG_SP 4 #define BX_16BIT_REG_BP 5 #define BX_16BIT_REG_SI 6 #define BX_16BIT_REG_DI 7 #define BX_32BIT_REG_EAX 0 #define BX_32BIT_REG_ECX 1 #define BX_32BIT_REG_EDX 2 #define BX_32BIT_REG_EBX 3 #define BX_32BIT_REG_ESP 4 #define BX_32BIT_REG_EBP 5 #define BX_32BIT_REG_ESI 6 #define BX_32BIT_REG_EDI 7 #if defined(NEED_CPU_REG_SHORTCUTS) /* WARNING: Only BX_CPU_C member functions can use these shortcuts safely! Functions that use the shortcuts outside of BX_CPU_C might work when BX_USE_CPU_SMF=1 but will fail when BX_USE_CPU_SMF=0 (for example in SMP mode). */ // access to 8 bit general registers #define AL (BX_CPU_THIS_PTR gen_reg[0].word.byte.rl) #define CL (BX_CPU_THIS_PTR gen_reg[1].word.byte.rl) #define DL (BX_CPU_THIS_PTR gen_reg[2].word.byte.rl) #define BL (BX_CPU_THIS_PTR gen_reg[3].word.byte.rl) #define AH (BX_CPU_THIS_PTR gen_reg[0].word.byte.rh) #define CH (BX_CPU_THIS_PTR gen_reg[1].word.byte.rh) #define DH (BX_CPU_THIS_PTR gen_reg[2].word.byte.rh) #define BH (BX_CPU_THIS_PTR gen_reg[3].word.byte.rh) // access to 16 bit general registers #define AX (BX_CPU_THIS_PTR gen_reg[0].word.rx) #define CX (BX_CPU_THIS_PTR gen_reg[1].word.rx) #define DX (BX_CPU_THIS_PTR gen_reg[2].word.rx) #define BX (BX_CPU_THIS_PTR gen_reg[3].word.rx) #define SP (BX_CPU_THIS_PTR gen_reg[4].word.rx) #define BP (BX_CPU_THIS_PTR gen_reg[5].word.rx) #define SI (BX_CPU_THIS_PTR gen_reg[6].word.rx) #define DI (BX_CPU_THIS_PTR gen_reg[7].word.rx) // access to 16 bit instruction pointer #define IP (* (Bit16u *) (((Bit8u *) &BX_CPU_THIS_PTR dword.eip) + BX_REG16_OFFSET)) // accesss to 32 bit general registers #define EAX BX_CPU_THIS_PTR gen_reg[0].dword.erx #define ECX BX_CPU_THIS_PTR gen_reg[1].dword.erx #define EDX BX_CPU_THIS_PTR gen_reg[2].dword.erx #define EBX BX_CPU_THIS_PTR gen_reg[3].dword.erx #define ESP BX_CPU_THIS_PTR gen_reg[4].dword.erx #define EBP BX_CPU_THIS_PTR gen_reg[5].dword.erx #define ESI BX_CPU_THIS_PTR gen_reg[6].dword.erx #define EDI BX_CPU_THIS_PTR gen_reg[7].dword.erx #if BX_SUPPORT_X86_64 // accesss to 64 bit general registers #define RAX BX_CPU_THIS_PTR gen_reg[0].rrx #define RCX BX_CPU_THIS_PTR gen_reg[1].rrx #define RDX BX_CPU_THIS_PTR gen_reg[2].rrx #define RBX BX_CPU_THIS_PTR gen_reg[3].rrx #define RSP BX_CPU_THIS_PTR gen_reg[4].rrx #define RBP BX_CPU_THIS_PTR gen_reg[5].rrx #define RSI BX_CPU_THIS_PTR gen_reg[6].rrx #define RDI BX_CPU_THIS_PTR gen_reg[7].rrx #define R8 BX_CPU_THIS_PTR gen_reg[8].rrx #define R9 BX_CPU_THIS_PTR gen_reg[9].rrx #define R10 BX_CPU_THIS_PTR gen_reg[10].rrx #define R11 BX_CPU_THIS_PTR gen_reg[11].rrx #define R12 BX_CPU_THIS_PTR gen_reg[12].rrx #define R13 BX_CPU_THIS_PTR gen_reg[13].rrx #define R14 BX_CPU_THIS_PTR gen_reg[14].rrx #define R15 BX_CPU_THIS_PTR gen_reg[15].rrx #endif // access to 32 bit instruction pointer #define EIP BX_CPU_THIS_PTR dword.eip #if BX_SUPPORT_X86_64 // access to 64 bit instruction pointer #define RIP BX_CPU_THIS_PTR rip // access to 64 bit MSR registers #define MSR_FSBASE (BX_CPU_THIS_PTR sregs[BX_SEG_REG_FS].cache.u.segment.base) #define MSR_GSBASE (BX_CPU_THIS_PTR sregs[BX_SEG_REG_GS].cache.u.segment.base) #define MSR_STAR (BX_CPU_THIS_PTR msr.star) #define MSR_LSTAR (BX_CPU_THIS_PTR msr.lstar) #define MSR_CSTAR (BX_CPU_THIS_PTR msr.cstar) #define MSR_FMASK (BX_CPU_THIS_PTR msr.fmask) #define MSR_KERNELGSBASE (BX_CPU_THIS_PTR msr.kernelgsbase) #endif #if BX_SUPPORT_X86_64 #define BX_READ_8BIT_REGx(index,extended) ((((index) < 4) || (extended)) ? \ (BX_CPU_THIS_PTR gen_reg[index].word.byte.rl) : \ (BX_CPU_THIS_PTR gen_reg[(index)-4].word.byte.rh)) #define BX_READ_16BIT_REG(index) (BX_CPU_THIS_PTR gen_reg[index].word.rx) #define BX_READ_32BIT_REG(index) (BX_CPU_THIS_PTR gen_reg[index].dword.erx) #define BX_READ_64BIT_REG(index) (BX_CPU_THIS_PTR gen_reg[index].rrx) #else #define BX_READ_8BIT_REG(index) (((index) < 4) ? \ (BX_CPU_THIS_PTR gen_reg[index].word.byte.rl) : \ (BX_CPU_THIS_PTR gen_reg[(index)-4].word.byte.rh)) #define BX_READ_8BIT_REGx(index,ext) BX_READ_8BIT_REG(index) #define BX_READ_16BIT_REG(index) (BX_CPU_THIS_PTR gen_reg[index].word.rx) #define BX_READ_32BIT_REG(index) (BX_CPU_THIS_PTR gen_reg[index].dword.erx) #endif #define BX_READ_16BIT_BASE_REG(var, index) {\ var = *BX_CPU_THIS_PTR _16bit_base_reg[index];\ } #define BX_READ_16BIT_INDEX_REG(var, index) {\ var = *BX_CPU_THIS_PTR _16bit_index_reg[index];\ } #if BX_SUPPORT_X86_64 #define BX_WRITE_8BIT_REGx(index, extended, val) {\ if (((index) < 4) || (extended)) \ BX_CPU_THIS_PTR gen_reg[index].word.byte.rl = val; \ else \ BX_CPU_THIS_PTR gen_reg[(index)-4].word.byte.rh = val; \ } #define BX_WRITE_16BIT_REG(index, val) {\ BX_CPU_THIS_PTR gen_reg[index].word.rx = val; \ } #define BX_WRITE_32BIT_REG(index, val) {\ BX_CPU_THIS_PTR gen_reg[index].dword.erx = val; \ } #define BX_WRITE_32BIT_REGZ(index, val) {\ BX_CPU_THIS_PTR gen_reg[index].rrx = (Bit32u) val; \ } #define BX_WRITE_64BIT_REG(index, val) {\ BX_CPU_THIS_PTR gen_reg[index].rrx = val; \ } #else #define BX_WRITE_8BIT_REG(index, val) {\ if ((index) < 4) \ BX_CPU_THIS_PTR gen_reg[index].word.byte.rl = val; \ else \ BX_CPU_THIS_PTR gen_reg[(index)-4].word.byte.rh = val; \ } #define BX_WRITE_8BIT_REGx(index, ext, val) BX_WRITE_8BIT_REG(index, val) #define BX_WRITE_16BIT_REG(index, val) {\ BX_CPU_THIS_PTR gen_reg[index].word.rx = val; \ } #define BX_WRITE_32BIT_REG(index, val) {\ BX_CPU_THIS_PTR gen_reg[index].dword.erx = val; \ } // For x86-32, I just pretend this one is like the macro above, // so common code can be used. #define BX_WRITE_32BIT_REGZ(index, val) {\ BX_CPU_THIS_PTR gen_reg[index].dword.erx = (Bit32u) val; \ } #endif #if BX_SMP_PROCESSORS==1 #define CPU_ID 0 #else #define CPU_ID (BX_CPU_THIS_PTR local_apic.get_id()) #endif #ifndef CPL #define CPL (BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].selector.rpl) #endif #endif // defined(NEED_CPU_REG_SHORTCUTS) #define BX_DE_EXCEPTION 0 // Divide Error (fault) #define BX_DB_EXCEPTION 1 // Debug (fault/trap) #define BX_BP_EXCEPTION 3 // Breakpoint (trap) #define BX_OF_EXCEPTION 4 // Overflow (trap) #define BX_BR_EXCEPTION 5 // BOUND (fault) #define BX_UD_EXCEPTION 6 #define BX_NM_EXCEPTION 7 #define BX_DF_EXCEPTION 8 #define BX_TS_EXCEPTION 10 #define BX_NP_EXCEPTION 11 #define BX_SS_EXCEPTION 12 #define BX_GP_EXCEPTION 13 #define BX_PF_EXCEPTION 14 #define BX_MF_EXCEPTION 16 #define BX_AC_EXCEPTION 17 #define BX_MC_EXCEPTION 18 #define BX_XF_EXCEPTION 19 /* MSR registers */ #define BX_MSR_P5_MC_ADDR 0x0000 #define BX_MSR_MC_TYPE 0x0001 #define BX_MSR_TSC 0x0010 #define BX_MSR_CESR 0x0011 #define BX_MSR_CTR0 0x0012 #define BX_MSR_CTR1 0x0013 #define BX_MSR_APICBASE 0x001b #define BX_MSR_EBL_CR_POWERON 0x002a #define BX_MSR_TEST_CTL 0x0033 #define BX_MSR_BIOS_UPDT_TRIG 0x0079 #define BX_MSR_BBL_CR_D0 0x0088 #define BX_MSR_BBL_CR_D1 0x0089 #define BX_MSR_BBL_CR_D2 0x008a #define BX_MSR_BBL_CR_D3 0x008b /* = BIOS_SIGN */ #define BX_MSR_PERFCTR0 0x00c1 #define BX_MSR_PERFCTR1 0x00c2 #define BX_MSR_MTRRCAP 0x00fe #define BX_MSR_BBL_CR_ADDR 0x0116 #define BX_MSR_BBL_DECC 0x0118 #define BX_MSR_BBL_CR_CTL 0x0119 #define BX_MSR_BBL_CR_TRIG 0x011a #define BX_MSR_BBL_CR_BUSY 0x011b #define BX_MSR_BBL_CR_CTL3 0x011e #define BX_MSR_MCG_CAP 0x0179 #define BX_MSR_MCG_STATUS 0x017a #define BX_MSR_MCG_CTL 0x017b #define BX_MSR_EVNTSEL0 0x0186 #define BX_MSR_EVNTSEL1 0x0187 #define BX_MSR_DEBUGCTLMSR 0x01d9 #define BX_MSR_LASTBRANCHFROMIP 0x01db #define BX_MSR_LASTBRANCHTOIP 0x01dc #define BX_MSR_LASTINTOIP 0x01dd #define BX_MSR_ROB_CR_BKUPTMPDR6 0x01e0 #define BX_MSR_MTRRPHYSBASE0 0x0200 #define BX_MSR_MTRRPHYSMASK0 0x0201 #define BX_MSR_MTRRPHYSBASE1 0x0202 #if BX_SUPPORT_X86_64 #define BX_MSR_EFER 0xc0000080 #define BX_MSR_STAR 0xc0000081 #define BX_MSR_LSTAR 0xc0000082 #define BX_MSR_CSTAR 0xc0000083 #define BX_MSR_FMASK 0xc0000084 #define BX_MSR_FSBASE 0xc0000100 #define BX_MSR_GSBASE 0xc0000101 #define BX_MSR_KERNELGSBASE 0xc0000102 #endif #define BX_MODE_IA32 0x0 #define BX_MODE_LONG_COMPAT 0x1 #define BX_MODE_LONG_64 0x2 #if BX_SUPPORT_APIC #define BX_CPU_INTR (BX_CPU_THIS_PTR INTR || BX_CPU_THIS_PTR local_apic.INTR) #else #define BX_CPU_INTR BX_CPU_THIS_PTR INTR #endif class BX_CPU_C; #if BX_USE_CPU_SMF == 0 // normal member functions. This can ONLY be used within BX_CPU_C classes. // Anyone on the outside should use the BX_CPU macro (defined in bochs.h) // instead. # define BX_CPU_THIS_PTR this-> # define BX_CPU_THIS this # define BX_SMF # define BX_CPU_C_PREFIX BX_CPU_C:: // with normal member functions, calling a member fn pointer looks like // object->*(fnptr)(arg, ...); // Since this is different from when SMF=1, encapsulate it in a macro. # define BX_CPU_CALL_METHOD(func, args) \ (this->*((BxExecutePtr_t) (func))) args #else // static member functions. With SMF, there is only one CPU by definition. # define BX_CPU_THIS_PTR BX_CPU(0)-> # define BX_CPU_THIS BX_CPU(0) # define BX_SMF static # define BX_CPU_C_PREFIX # define BX_CPU_CALL_METHOD(func, args) \ ((BxExecutePtr_t) (func)) args #endif #if BX_SMP_PROCESSORS==1 // single processor simulation, so there's one of everything BOCHSAPI extern BX_CPU_C bx_cpu; #else // multiprocessor simulation, we need an array of cpus and memories BOCHSAPI extern BX_CPU_C *bx_cpu_array[BX_SMP_PROCESSORS]; #endif typedef struct { /* 31|30|29|28|27|26|25|24|23|22|21|20|19|18|17|16 * ==|==|=====|==|==|==|==|==|==|==|==|==|==|==|== * 0| 0| 0| 0| 0| 0| 0| 0| 0| 0|ID|VP|VF|AC|VM|RF * * 15|14|13|12|11|10| 9| 8| 7| 6| 5| 4| 3| 2| 1| 0 * ==|==|=====|==|==|==|==|==|==|==|==|==|==|==|== * 0|NT| IOPL|OF|DF|IF|TF|SF|ZF| 0|AF| 0|PF| 1|CF */ Bit32u val32; // Raw 32-bit value in x86 bit position. Used to store // some eflags which are not cached in separate fields. Bit32u VM_cached; #define DECLARE_EFLAGS_ACCESSORS() \ BX_CPP_INLINE void setEFlags(Bit32u val); #define IMPLEMENT_EFLAGS_ACCESSORS() \ BX_CPP_INLINE void BX_CPU_C::setEFlags(Bit32u val) { \ BX_CPU_THIS_PTR eflags.val32 = val; \ BX_CPU_THIS_PTR eflags.VM_cached = val & (1<<17); \ if ( BX_CPU_THIS_PTR cr0.pe) { \ BX_CPU_THIS_PTR v8086Mode = BX_CPU_THIS_PTR eflags.VM_cached; \ BX_CPU_THIS_PTR protectedMode = ! BX_CPU_THIS_PTR v8086Mode; \ } \ } // accessors for all eflags in bx_flags_reg_t // The macro is used once for each flag bit. #define DECLARE_EFLAG_ACCESSOR(name,bitnum) \ BX_CPP_INLINE void assert_##name (); \ BX_CPP_INLINE void clear_##name (); \ BX_CPP_INLINE Bit32u get_##name (); \ BX_CPP_INLINE bx_bool getB_##name (); \ BX_CPP_INLINE void set_##name (Bit8u val); #define IMPLEMENT_EFLAG_ACCESSOR(name,bitnum) \ BX_CPP_INLINE void BX_CPU_C::assert_##name () { \ BX_CPU_THIS_PTR eflags.val32 |= (1<> bitnum); \ } \ BX_CPP_INLINE Bit32u BX_CPU_C::get_##name () { \ return BX_CPU_THIS_PTR eflags.val32 & (1 << bitnum); \ } \ BX_CPP_INLINE void BX_CPU_C::set_##name (Bit8u val) { \ BX_CPU_THIS_PTR eflags.val32 = \ (BX_CPU_THIS_PTR eflags.val32&~(1<0); \ } \ BX_CPP_INLINE void BX_CPU_C::set_VM(Bit32u val) { \ BX_CPU_THIS_PTR eflags.val32 = \ (BX_CPU_THIS_PTR eflags.val32&~(1<> 12); \ } #define EFlagsOSZAPCMask 0x000008d5 #define EFlagsOSZAPMask 0x000008d4 } bx_flags_reg_t; #define DECLARE_8BIT_REGISTER_ACCESSORS(name) \ BX_SMF BX_CPP_INLINE Bit8u get_##name(void); \ BX_SMF BX_CPP_INLINE void set_##name(Bit8u val) #define DECLARE_16BIT_REGISTER_ACCESSORS(name) \ BX_SMF BX_CPP_INLINE Bit16u get_##name(void); \ BX_SMF BX_CPP_INLINE void set_##name(Bit16u val) #define DECLARE_32BIT_REGISTER_ACCESSORS(name) \ BX_SMF BX_CPP_INLINE Bit32u get_##name(void); \ BX_SMF BX_CPP_INLINE void set_##name(Bit32u val) #define IMPLEMENT_8LBIT_REGISTER_ACCESSORS(name) \ BX_CPP_INLINE void BX_CPU_C::set_##name(Bit8u val) { \ BX_CPU_THIS_PTR gen_reg[BX_8BIT_REG_##name].word.byte.rl = val; \ } \ BX_CPP_INLINE Bit8u BX_CPU_C::get_##name(void) { \ return (BX_CPU_THIS_PTR gen_reg[BX_8BIT_REG_##name].word.byte.rl); \ } #define IMPLEMENT_8HBIT_REGISTER_ACCESSORS(name) \ BX_CPP_INLINE void BX_CPU_C::set_##name(Bit8u val) { \ BX_CPU_THIS_PTR gen_reg[BX_8BIT_REG_##name-4].word.byte.rh = val; \ } \ BX_CPP_INLINE Bit8u BX_CPU_C::get_##name(void) { \ return (BX_CPU_THIS_PTR gen_reg[BX_8BIT_REG_##name-4].word.byte.rh); \ } #define IMPLEMENT_16BIT_REGISTER_ACCESSORS(name) \ BX_CPP_INLINE void BX_CPU_C::set_##name(Bit16u val) { \ BX_CPU_THIS_PTR gen_reg[BX_16BIT_REG_##name].word.rx = val; \ } \ BX_CPP_INLINE Bit16u BX_CPU_C::get_##name(void) { \ return (BX_CPU_THIS_PTR gen_reg[BX_16BIT_REG_##name].word.rx); \ } #define IMPLEMENT_32BIT_REGISTER_ACCESSORS(name) \ BX_CPP_INLINE void BX_CPU_C::set_##name(Bit32u val) { \ BX_CPU_THIS_PTR gen_reg[BX_32BIT_REG_##name].dword.erx = val; \ } \ BX_CPP_INLINE Bit32u BX_CPU_C::get_##name(void) { \ return (BX_CPU_THIS_PTR gen_reg[BX_32BIT_REG_##name].dword.erx); \ } #if BX_CPU_LEVEL >= 2 typedef struct { Bit32u val32; // 32bit value of register // bitfields broken out for efficient access #if BX_CPU_LEVEL >= 3 bx_bool pg; // paging #endif // CR0 notes: // Each x86 level has its own quirks regarding how it handles // reserved bits. I used DOS DEBUG.EXE in real mode on the // following processors, tried to clear bits 1..30, then tried // to set bits 1..30, to see how these bits are handled. // I found the following: // // Processor try to clear bits 1..30 try to set bits 1..30 // 386 7FFFFFF0 7FFFFFFE // 486DX2 00000010 6005003E // Pentium 00000010 7FFFFFFE // Pentium-II 00000010 6005003E // // My assumptions: // All processors: bit 4 is hardwired to 1 (not true on all clones) // 386: bits 5..30 of CR0 are also hardwired to 1 // Pentium: reserved bits retain value set using mov cr0, reg32 // 486DX2/Pentium-II: reserved bits are hardwired to 0 #if BX_CPU_LEVEL >= 4 bx_bool cd; // cache disable bx_bool nw; // no write-through bx_bool am; // alignment mask bx_bool wp; // write-protect bx_bool ne; // numerics exception #endif bx_bool ts; // task switched bx_bool em; // emulate math coprocessor bx_bool mp; // monitor coprocessor bx_bool pe; // protected mode enable } bx_cr0_t; #endif #if BX_CPU_LEVEL >= 4 typedef struct { Bit32u registerValue; // 32bit value of register // Accessors for all cr4 bitfields. #define IMPLEMENT_CR4_ACCESSORS(name,bitnum) \ BX_CPP_INLINE bx_bool get_##name () { \ return 1 & (registerValue >> bitnum); \ } \ BX_CPP_INLINE void set_##name (Bit8u val) { \ registerValue = (registerValue&~(1<= 4 #if BX_CPU_LEVEL >= 5 typedef struct { Bit64u apicbase; #if BX_SUPPORT_X86_64 // x86-64 EFER bits bx_bool sce; bx_bool lme; bx_bool lma; Bit64u star; Bit64u lstar; Bit64u cstar; Bit64u fmask; Bit64u kernelgsbase; #endif /* TODO finish of the others */ } bx_regs_msr_t; #endif typedef struct { /* bx_selector_t */ Bit16u value; /* the 16bit value of the selector */ #if BX_CPU_LEVEL >= 2 /* the following fields are extracted from the value field in protected mode only. They're used for sake of efficiency */ Bit16u index; /* 13bit index extracted from value in protected mode */ Bit8u ti; /* table indicator bit extracted from value */ Bit8u rpl; /* RPL extracted from value */ #endif } bx_selector_t; typedef struct { #define SegValidCache 0x1 #define SegAccessROK 0x2 #define SegAccessWOK 0x4 bx_bool valid; // Holds above values, Or'd together. Used to // hold only 0 or 1. bx_bool p; /* present */ Bit8u dpl; /* descriptor privilege level 0..3 */ bx_bool segment; /* 0 = system/gate, 1 = data/code segment */ Bit8u type; /* For system & gate descriptors, only * 0 = invalid descriptor (reserved) * 1 = 286 available Task State Segment (TSS) * 2 = LDT descriptor * 3 = 286 busy Task State Segment (TSS) * 4 = 286 call gate * 5 = task gate * 6 = 286 interrupt gate * 7 = 286 trap gate * 8 = (reserved) * 9 = 386 available TSS * 10 = (reserved) * 11 = 386 busy TSS * 12 = 386 call gate * 13 = (reserved) * 14 = 386 interrupt gate * 15 = 386 trap gate */ union { struct { bx_bool executable; /* 1=code, 0=data or stack segment */ bx_bool c_ed; /* for code: 1=conforming, for data/stack: 1=expand down */ bx_bool r_w; /* for code: readable?, for data/stack: writeable? */ bx_bool a; /* accessed? */ bx_address base; /* base address: 286=24bits, 386=32bits, long=64 */ Bit32u limit; /* limit: 286=16bits, 386=20bits */ Bit32u limit_scaled; /* for efficiency, this contrived field is set to * limit for byte granular, and * (limit << 12) | 0xfff for page granular seg's */ #if BX_CPU_LEVEL >= 3 bx_bool g; /* granularity: 0=byte, 1=4K (page) */ bx_bool d_b; /* default size: 0=16bit, 1=32bit */ #if BX_SUPPORT_X86_64 bx_bool l; /* long mode: 0=compat, 1=64 bit */ #endif bx_bool avl; /* available for use by system */ #endif } segment; struct { Bit8u word_count; /* 5bits (0..31) #words to copy from caller's stack * to called procedure's stack. (call gates only)*/ Bit16u dest_selector; Bit16u dest_offset; } gate286; struct { // type 5: Task Gate Descriptor Bit16u tss_selector; // TSS segment selector } taskgate; #if BX_CPU_LEVEL >= 3 struct { Bit8u dword_count; /* 5bits (0..31) #dwords to copy from caller's stack * to called procedure's stack. (call gates only)*/ Bit16u dest_selector; Bit32u dest_offset; } gate386; #endif struct { Bit32u base; /* 24 bit 286 TSS base */ Bit16u limit; /* 16 bit 286 TSS limit */ } tss286; #if BX_CPU_LEVEL >= 3 struct { bx_address base; /* 32/64 bit 386 TSS base */ Bit32u limit; /* 20 bit 386 TSS limit */ Bit32u limit_scaled; // Same notes as for 'segment' field bx_bool g; /* granularity: 0=byte, 1=4K (page) */ bx_bool avl; /* available for use by system */ } tss386; #endif struct { bx_address base; /* 286=24 386+ =32/64 bit LDT base */ Bit16u limit; /* 286+ =16 bit LDT limit */ } ldt; } u; } bx_descriptor_t; typedef struct { bx_selector_t selector; bx_descriptor_t cache; } bx_segment_reg_t; typedef void * (*BxVoidFPtr_t)(void); class BX_CPU_C; class bxInstruction_c { public: // Function pointers; a function to resolve the modRM address // given the current state of the CPU and the instruction data, // and a function to execute the instruction after resolving // the memory address (if any). #if BX_USE_CPU_SMF void (*ResolveModrm)(bxInstruction_c *); void (*execute)(bxInstruction_c *); #else void (BX_CPU_C::*ResolveModrm)(bxInstruction_c *); void (BX_CPU_C::*execute)(bxInstruction_c *); #endif // 26..23 ilen (0..15). Leave this one on top so no mask is needed. // 22..22 mod==c0 (modrm) // 21..13 b1 (9bits of opcode; 1byte-op=0..255, 2byte-op=256..511. // 12..12 BxRepeatableZF (pass-thru from fetchdecode attributes) // 11..11 BxRepeatable (pass-thru from fetchdecode attributes) // 10...9 repUsed (0=none, 2=0xF2, 3=0xF3). // 8...8 extend8bit // 7...7 as64 // 6...6 os64 // 5...5 as32 // 4...4 os32 // 3...3 (unused) // 2...0 seg unsigned metaInfo; union { // Form (longest case): [opcode+modrm+sib/displacement32/immediate32] struct { // Note: if you add more bits, mask the previously upper field, // in the accessor. // 27..20 modRM (modrm) // 19..16 index (sib) // 15..12 base (sib) // 11...8 nnn (modrm) // 7...6 mod (modrm) // 5...4 scale (sib) // 3...0 rm (modrm) Bit32u modRMData; union { Bit32u Id; Bit16u Iw; Bit8u Ib; }; union { Bit16u displ16u; // for 16-bit modrm forms Bit32u displ32u; // for 32-bit modrm forms }; } modRMForm; struct { Bit32u dummy; union { Bit32u Id; Bit16u Iw; Bit8u Ib; }; union { Bit32u Id2; // Not used (for alignment) Bit16u Iw2; Bit8u Ib2; }; } IxIxForm; struct { // For opcodes which don't use modRM, but which encode the // register in the low 3 bits of the opcode, extended by the // REX.B bit on x86-64, the register value is cached in opcodeReg. Bit32u opcodeReg; union { Bit32u Id; Bit16u Iw; Bit8u Ib; }; Bit32u dummy; } IxForm; #if BX_SUPPORT_X86_64 // Form: [opcode/Iq]. These opcode never use a modrm sequence. struct { Bit32u opcodeReg; Bit64u Iq; // for MOV Rx,imm64 } IqForm; #endif }; BX_CPP_INLINE unsigned opcodeReg() { // The opcodeReg form (low 3 bits of the opcode byte (extended // by REX.B on x86-64) can be accessed by IxForm or IqForm. They // are aligned in the same place, so it doesn't matter. return IxForm.opcodeReg; } BX_CPP_INLINE unsigned modrm() { return (modRMForm.modRMData>>20) & 0xff; } BX_CPP_INLINE unsigned mod() { return modRMForm.modRMData & 0xc0; } BX_CPP_INLINE unsigned modC0() { // This is a cheaper way to test for modRM instructions where // the mod field is 0xc0. FetchDecode flags this condition since // it is quite common to be tested for. return metaInfo & (1<<22); } BX_CPP_INLINE unsigned nnn() { return (modRMForm.modRMData >> 8) & 0xf; } BX_CPP_INLINE unsigned rm() { return modRMForm.modRMData & 0xf; } BX_CPP_INLINE unsigned sibScale() { return (modRMForm.modRMData >> 4) & 0x3; } BX_CPP_INLINE unsigned sibIndex() { return (modRMForm.modRMData >> 16) & 0xf; } BX_CPP_INLINE unsigned sibBase() { return (modRMForm.modRMData >> 12) & 0xf; } BX_CPP_INLINE Bit32u displ32u() { return modRMForm.displ32u; } BX_CPP_INLINE Bit16u displ16u() { return modRMForm.displ16u; } BX_CPP_INLINE Bit32u Id() { return modRMForm.Id; } BX_CPP_INLINE Bit16u Iw() { return modRMForm.Iw; } BX_CPP_INLINE Bit8u Ib() { return modRMForm.Ib; } BX_CPP_INLINE Bit16u Iw2() { return IxIxForm.Iw2; } // Legacy BX_CPP_INLINE Bit8u Ib2() { return IxIxForm.Ib2; } // Legacy #if BX_SUPPORT_X86_64 BX_CPP_INLINE Bit64u Iq() { return IqForm.Iq; } #endif // Info in the metaInfo field. // Note: the 'L' at the end of certain flags, means the value returned // is for Logical comparisons, eg if (i->os32L() && i->as32L()). If you // want a bx_bool value, use os32B() etc. This makes for smaller // code, when a strict 0 or 1 is not necessary. BX_CPP_INLINE void initMetaInfo(unsigned seg, unsigned os32, unsigned as32, unsigned os64, unsigned as64, unsigned extend8bit, unsigned repUsed) { metaInfo = seg | (os32<<4) | (as32<<5) | (os64<<6) | (as64<<7) | (extend8bit<<8) | (repUsed<<9); } BX_CPP_INLINE unsigned seg(void) { return metaInfo & 7; } BX_CPP_INLINE void setSeg(unsigned val) { metaInfo = (metaInfo & ~7) | val; } BX_CPP_INLINE unsigned os32L(void) { return metaInfo & (1<<4); } BX_CPP_INLINE unsigned os32B(void) { return (metaInfo >> 4) & 1; } BX_CPP_INLINE void setOs32B(unsigned bit) { metaInfo = (metaInfo & ~(1<<4)) | (bit<<4); } BX_CPP_INLINE void assertOs32(void) { metaInfo |= (1<<4); } BX_CPP_INLINE unsigned as32L(void) { return metaInfo & (1<<5); } BX_CPP_INLINE unsigned as32B(void) { return (metaInfo >> 5) & 1; } BX_CPP_INLINE void setAs32B(unsigned bit) { metaInfo = (metaInfo & ~(1<<5)) | (bit<<5); } #if BX_SUPPORT_X86_64 BX_CPP_INLINE unsigned os64L(void) { return metaInfo & (1<<6); } BX_CPP_INLINE void setOs64B(unsigned bit) { metaInfo = (metaInfo & ~(1<<6)) | (bit<<6); } BX_CPP_INLINE void assertOs64(void) { metaInfo |= (1<<6); } #else BX_CPP_INLINE unsigned os64L(void) { return 0; } #endif #if BX_SUPPORT_X86_64 BX_CPP_INLINE unsigned as64L(void) { return metaInfo & (1<<7); } BX_CPP_INLINE void setAs64B(unsigned bit) { metaInfo = (metaInfo & ~(1<<7)) | (bit<<7); } #else BX_CPP_INLINE unsigned as64L(void) { return 0; } #endif #if BX_SUPPORT_X86_64 BX_CPP_INLINE unsigned extend8bitL(void) { return metaInfo & (1<<8); } BX_CPP_INLINE void assertExtend8bit(void) { metaInfo |= (1<<8); } #endif BX_CPP_INLINE unsigned repUsedL(void) { return metaInfo & (3<<9); } BX_CPP_INLINE unsigned repUsedValue(void) { return (metaInfo >> 9) & 3; } BX_CPP_INLINE void setRepUsed(unsigned value) { metaInfo = (metaInfo & ~(3<<9)) | (value<<9); } BX_CPP_INLINE void setRepAttr(unsigned value) { // value is expected to be masked, and only contain bits // for BxRepeatable and BxRepeatableZF. We don't need to // keep masking out these bits before we add in new ones, // since the fetch process won't start with repeatable attributes // and then delete them. metaInfo |= value; } BX_CPP_INLINE unsigned repeatableL(void) { return metaInfo & (1<<11); } BX_CPP_INLINE unsigned repeatableZFL(void) { return metaInfo & (1<<12); } BX_CPP_INLINE unsigned b1(void) { return (metaInfo >> 13) & 0x1ff; } BX_CPP_INLINE void setB1(unsigned b1) { metaInfo = (metaInfo & ~(0x1ff<<13)) | (b1<<13); } // Note this is the highest field, and thus needs no masking. // DON'T PUT ANY FIELDS HIGHER THAN THIS ONE WITHOUT ADDING A MASK. BX_CPP_INLINE unsigned ilen(void) { return metaInfo >> 23; } BX_CPP_INLINE void setILen(unsigned ilen) { metaInfo |= (ilen<<23); } }; #if BX_USE_CPU_SMF typedef void (*BxExecutePtr_t)(bxInstruction_c *); #else typedef void (BX_CPU_C::*BxExecutePtr_t)(bxInstruction_c *); #endif // ========== iCache ============================================= #if BX_SupportICache #define BxICacheEntries (32 * 1024) // Must be a power of 2. // bit31: 1=CS is 32/64-bit, 0=CS is 16-bit. // bit30: 1=Long Mode, 0=not Long Mode. // bit29: 1=iCache page, 0=Data. #define ICacheWriteStampInvalid 0x1fffffff #define ICacheWriteStampMax 0x1fffffff // Decrements from here. #define ICacheWriteStampMask 0x1fffffff class bxICacheEntry_c { public: Bit32u pAddr; // Physical address of the instruction. Bit32u writeStamp; // Generation ID. Each write to a physical page // decrements this value. bxInstruction_c i; // The instruction decode information. }; class BOCHSAPI bxICache_c { public: bxICacheEntry_c entry[BxICacheEntries]; // A table (dynamically allocated) to store write-stamp // generation IDs. Each time a write occurs to a physical page, // a generation ID is decremented. Only iCache entries which have // write stamps matching the physical page write stamp are valid. Bit32u *pageWriteStampTable; // Allocated later. Bit32u fetchModeMask; bxICache_c() { // Initially clear the iCache; memset(this, 0, sizeof(*this)); pageWriteStampTable = NULL; for (unsigned i=0; i>12)); for (unsigned i=0; i<(memSizeInBytes>>12); i++) { pageWriteStampTable[i] = ICacheWriteStampInvalid; } } BX_CPP_INLINE void decWriteStamp(BX_CPU_C *cpu, Bit32u a20Addr); BX_CPP_INLINE void clear(void) { memset(this, 0, sizeof(*this)); } BX_CPP_INLINE unsigned hash(Bit32u pAddr) { // A pretty dumb hash function for now. return pAddr & (BxICacheEntries-1); } BX_CPP_INLINE Bit32u createFetchModeMask(BX_CPU_C *cpu); }; #endif // =============================================================== #if BX_CPU_LEVEL < 2 /* no GDTR or IDTR register in an 8086 */ #else typedef struct { bx_address base; /* base address: 24bits=286,32bits=386,64bits=x86-64 */ Bit16u limit; /* limit, 16bits */ } bx_global_segment_reg_t; #endif #if BX_USE_TLB typedef struct { bx_address lpf; // linear page frame Bit32u ppf; // physical page frame Bit32u accessBits; // Page Table Address for updating A & D bits Bit32u hostPageAddr; } bx_TLB_entry; #endif // #if BX_USE_TLB #if BX_SUPPORT_X86_64 #ifdef BX_BIG_ENDIAN typedef struct { union { struct { Bit32u dword_filler; Bit16u word_filler; union { Bit16u rx; struct { Bit8u rh; Bit8u rl; } byte; }; } word; Bit64u rrx; struct { Bit32u hrx; // hi 32 bits Bit32u erx; // low 32 bits } dword; }; } bx_gen_reg_t; #else typedef struct { union { struct { union { Bit16u rx; struct { Bit8u rl; Bit8u rh; } byte; }; Bit16u word_filler; Bit32u dword_filler; } word; Bit64u rrx; struct { Bit32u erx; // low 32 bits Bit32u hrx; // hi 32 bits } dword; }; } bx_gen_reg_t; #endif #else // #if BX_SUPPORT_X86_64 #ifdef BX_BIG_ENDIAN typedef struct { union { struct { Bit32u erx; } dword; struct { Bit16u word_filler; union { Bit16u rx; struct { Bit8u rh; Bit8u rl; } byte; }; } word; }; } bx_gen_reg_t; #else typedef struct { union { struct { Bit32u erx; } dword; struct { union { Bit16u rx; struct { Bit8u rl; Bit8u rh; } byte; }; Bit16u word_filler; } word; }; } bx_gen_reg_t; #endif #endif // #if BX_SUPPORT_X86_64 typedef enum { APIC_TYPE_NONE, APIC_TYPE_IOAPIC, APIC_TYPE_LOCAL_APIC } bx_apic_type_t; #define APIC_BASE_ADDR 0xfee00000 // default APIC address #if BX_SUPPORT_APIC class BOCHSAPI bx_generic_apic_c : public logfunctions { protected: Bit32u base_addr; Bit8u id; #define APIC_UNKNOWN_ID 0xff #define APIC_VERSION_ID 0x00170011 // same version as 82093 IOAPIC public: bx_generic_apic_c (); virtual ~bx_generic_apic_c (); virtual void init (); virtual void hwreset () { } Bit32u get_base (void) { return base_addr; } void set_base (Bit32u newbase); void set_id (Bit8u newid); Bit8u get_id () { return id; } static void reset_all_ids (); virtual char *get_name(); bx_bool is_selected (Bit32u addr, Bit32u len); void read (Bit32u addr, void *data, unsigned len); virtual void read_aligned(Bit32u address, Bit32u *data, unsigned len); virtual void write(Bit32u address, Bit32u *value, unsigned len); virtual void startup_msg (Bit32u vector); // on local APIC, trigger means deliver to the CPU. // on I/O APIC, trigger means direct to another APIC according to table. virtual void trigger_irq (unsigned num, unsigned from); virtual void untrigger_irq (unsigned num, unsigned from); virtual Bit32u get_delivery_bitmask (Bit8u dest, Bit8u dest_mode); virtual bx_bool deliver (Bit8u destination, Bit8u dest_mode, Bit8u delivery_mode, Bit8u vector, Bit8u polarity, Bit8u trig_mode); virtual bx_bool match_logical_addr (Bit8u address); virtual bx_apic_type_t get_type (); virtual void set_arb_id (int newid); // only implemented on local apics }; class BOCHSAPI bx_local_apic_c : public bx_generic_apic_c { #define BX_LOCAL_APIC_MAX_INTS 256 // TMR=trigger mode register. Cleared for edge-triggered interrupts // and set for level-triggered interrupts. If set, local APIC must send // EOI message to all other APICs. EOI's are not implemented. Bit8u tmr[BX_LOCAL_APIC_MAX_INTS]; // IRR=interrupt request register. When an interrupt is triggered by // the I/O APIC or another processor, it sets a bit in irr. The bit is // cleared when the interrupt is acknowledged by the processor. Bit8u irr[BX_LOCAL_APIC_MAX_INTS]; // ISR=in-service register. When an IRR bit is cleared, the corresponding // bit in ISR is set. The ISR bit is cleared when Bit8u isr[BX_LOCAL_APIC_MAX_INTS]; Bit32u arb_id, arb_priority, task_priority, log_dest, dest_format, spurious_vec; Bit32u lvt[6]; #define APIC_LVT_TIMER 0 #define APIC_LVT_THERMAL 1 #define APIC_LVT_PERFORM 2 #define APIC_LVT_LINT0 3 #define APIC_LVT_LINT1 4 #define APIC_LVT_ERROR 5 Bit32u timer_initial, timer_current, timer_divconf; bx_bool timer_active; // internal state, not accessible from bus Bit32u timer_divide_counter, timer_divide_factor; Bit32u icr_high, icr_low; Bit32u err_status; #define APIC_ERR_ILLEGAL_ADDR 0x80 #define APIC_ERR_RX_ILLEGAL_VEC 0x40 #define APIC_ERR_TX_ILLEGAL_VEC 0x20 #define APIC_ERR_RX_ACCEPT_ERR 0x08 #define APIC_ERR_TX_ACCEPT_ERR 0x04 #define APIC_ERR_RX_CHECKSUM 0x02 #define APIC_ERR_TX_CHECKSUM 0x01 int timer_handle; // KPL Bit64u ticksInitial; // System ticks count when APIC timer is started. public: bx_bool INTR; bx_local_apic_c(BX_CPU_C *mycpu, int cpuno); virtual ~bx_local_apic_c(void); BX_CPU_C *cpu; virtual void hwreset (); virtual void init (); BX_CPU_C *get_cpu (Bit8u id); void set_id (Bit8u newid); // redefine to set cpu->name virtual char *get_name(); virtual void write (Bit32u addr, Bit32u *data, unsigned len); virtual void read_aligned(Bit32u address, Bit32u *data, unsigned len); virtual void startup_msg (Bit32u vector); // on local APIC, trigger means raise the CPU's INTR line. For now // I also have to raise pc_system.INTR but that should be replaced // with the cpu-specific INTR signals. virtual void trigger_irq (unsigned num, unsigned from); virtual void untrigger_irq (unsigned num, unsigned from); Bit8u acknowledge_int (); // only the local CPU should call this int highest_priority_int (Bit8u *array); void service_local_apic (); void print_status (); virtual bx_bool match_logical_addr (Bit8u address); virtual bx_bool is_local_apic () { return true; } virtual bx_apic_type_t get_type () { return APIC_TYPE_LOCAL_APIC; } virtual Bit32u get_delivery_bitmask (Bit8u dest, Bit8u dest_mode); virtual bx_bool deliver (Bit8u destination, Bit8u dest_mode, Bit8u delivery_mode, Bit8u vector, Bit8u polarity, Bit8u trig_mode); Bit8u get_ppr (); Bit8u get_apr (); static void periodic_smf(void *); // KPL void periodic(void); // KPL void set_divide_configuration (Bit32u value); virtual void update_msr_apicbase(Bit32u newaddr); virtual void set_arb_id (int newid); }; #define APIC_MAX_ID 16 extern bx_generic_apic_c *apic_index[APIC_MAX_ID]; #endif // if BX_SUPPORT_APIC typedef void (*BxDTShim_t)(void); class BX_MEM_C; #include "cpu/i387.h" #if BX_SUPPORT_SSE #include "cpu/xmm.h" #endif class BOCHSAPI BX_CPU_C : public logfunctions { public: // for now... char name[64]; // General register set // eax: accumulator // ebx: base // ecx: count // edx: data // ebp: base pointer // esi: source index // edi: destination index // esp: stack pointer #if BX_SUPPORT_X86_64 bx_gen_reg_t gen_reg[16]; union { #ifdef BX_BIG_ENDIAN struct { Bit32u rip_upper; Bit32u eip; } dword; #else struct { Bit32u eip; Bit32u rip_upper; } dword; #endif Bit64u rip; }; #else bx_gen_reg_t gen_reg[8]; union { Bit32u eip; // instruction pointer } dword; #endif #if BX_CPU_LEVEL > 0 // so that we can back up when handling faults, exceptions, etc. // we need to store the value of the instruction pointer, before // each fetch/execute cycle. bx_address prev_eip; #endif // A few pointer to functions for use by the dynamic translation // code. Keep them close to the gen_reg declaration, so I can // use an 8bit offset to access them. #if BX_DYNAMIC_TRANSLATION BxDTShim_t DTWrite8vShim; BxDTShim_t DTWrite16vShim; BxDTShim_t DTWrite32vShim; BxDTShim_t DTRead8vShim; BxDTShim_t DTRead16vShim; BxDTShim_t DTRead32vShim; BxDTShim_t DTReadRMW8vShim; BxDTShim_t DTReadRMW16vShim; BxDTShim_t DTReadRMW32vShim; BxDTShim_t DTWriteRMW8vShim; BxDTShim_t DTWriteRMW16vShim; BxDTShim_t DTWriteRMW32vShim; BxDTShim_t DTSetFlagsOSZAPCPtr; BxDTShim_t DTIndBrHandler; BxDTShim_t DTDirBrHandler; #endif // status and control flags register set Bit32u lf_flags_status; bx_flags_reg_t eflags; bx_lf_flags_entry oszapc; bx_lf_flags_entry oszap; bx_address prev_esp; #define BX_INHIBIT_INTERRUPTS 0x01 #define BX_INHIBIT_DEBUG 0x02 // What events to inhibit at any given time. Certain instructions // inhibit interrupts, some debug exceptions and single-step traps. unsigned inhibit_mask; /* user segment register set */ bx_segment_reg_t sregs[6]; /* system segment registers */ #if BX_CPU_LEVEL >= 2 bx_global_segment_reg_t gdtr; /* global descriptor table register */ bx_global_segment_reg_t idtr; /* interrupt descriptor table register */ #endif bx_segment_reg_t ldtr; /* interrupt descriptor table register */ bx_segment_reg_t tr; /* task register */ /* debug registers 0-7 (unimplemented) */ #if BX_CPU_LEVEL >= 3 Bit32u dr0; Bit32u dr1; Bit32u dr2; Bit32u dr3; Bit32u dr6; Bit32u dr7; #endif /* TR3 - TR7 (Test Register 3-7), unimplemented */ /* Control registers */ #if BX_CPU_LEVEL >= 2 bx_cr0_t cr0; // Some cached values, so we don't have to do the checks in real time // in code that needs them. unsigned protectedMode; // CR0.PE=1, EFLAGS.VM=0 unsigned v8086Mode; // CR0.PE=1, EFLAGS.VM=1 unsigned realMode; // CR0.PE=1 Bit32u cr1; bx_address cr2; bx_address cr3; #endif #if BX_CPU_LEVEL >= 4 bx_cr4_t cr4; #endif #if BX_CPU_LEVEL >= 5 bx_regs_msr_t msr; #endif i387_t the_i387; #if BX_SUPPORT_SSE bx_xmm_reg_t xmm[BX_XMM_REGISTERS]; bx_mxcsr_t mxcsr; #endif // pointer to the address space that this processor uses. BX_MEM_C *mem; bx_bool EXT; /* 1 if processing external interrupt or exception * or if not related to current instruction, * 0 if current CS:IP caused exception */ unsigned errorno; /* signal exception during instruction emulation */ Bit32u debug_trap; // holds DR6 value to be set as well volatile bx_bool async_event; volatile bx_bool INTR; volatile bx_bool kill_bochs_request; /* wether this CPU is the BSP always set for UP */ bx_bool bsp; // for accessing registers by index number Bit16u *_16bit_base_reg[8]; Bit16u *_16bit_index_reg[8]; Bit32u empty_register; // for decoding instructions; accessing seg reg's by index unsigned sreg_mod00_rm16[8]; unsigned sreg_mod01_rm16[8]; unsigned sreg_mod10_rm16[8]; #if BX_SUPPORT_X86_64 unsigned sreg_mod01_rm32[16]; unsigned sreg_mod10_rm32[16]; unsigned sreg_mod0_base32[16]; unsigned sreg_mod1or2_base32[16]; #else unsigned sreg_mod01_rm32[8]; unsigned sreg_mod10_rm32[8]; unsigned sreg_mod0_base32[8]; unsigned sreg_mod1or2_base32[8]; #endif // for exceptions jmp_buf jmp_buf_env; Bit8u curr_exception[2]; static const bx_bool is_exception_OK[3][3]; bx_segment_reg_t save_cs; bx_segment_reg_t save_ss; Bit32u save_eip; Bit32u save_esp; // Boundaries of current page, based on EIP bx_address eipPageBias; bx_address eipPageWindowSize; Bit8u *eipFetchPtr; Bit32u pAddrA20Page; // Guest physical address of current instruction // page with A20() already applied. #if BX_SUPPORT_X86_64 // for x86-64 (MODE_IA32,MODE_LONG,MODE_64) unsigned cpu_mode; #else // x86-32 is always in IA32 mode. enum { cpu_mode = BX_MODE_IA32 }; #endif #if BX_DEBUGGER Bit32u watchpoint; Bit8u break_point; #ifdef MAGIC_BREAKPOINT Bit8u magic_break; #endif Bit8u stop_reason; Bit8u trace; Bit8u trace_reg; Bit8u mode_break; /* BW */ bx_bool debug_vm; /* BW contains current mode*/ Bit8u show_eip; /* BW record eip at special instr f.ex eip */ Bit8u show_flag; /* BW shows instr class executed */ bx_guard_found_t guard_found; #endif #if BX_SUPPORT_X86_64 #define TLB_GENERATION_MAX (BX_TLB_SIZE-1) #endif // for paging #if BX_USE_TLB struct { bx_TLB_entry entry[BX_TLB_SIZE] BX_CPP_AlignN(16); #if BX_USE_QUICK_TLB_INVALIDATE # define BX_TLB_LPF_VALUE(lpf) (lpf | BX_CPU_THIS_PTR TLB.tlb_invalidate) Bit32u tlb_invalidate; #else # define BX_TLB_LPF_VALUE(lpf) (lpf) #endif } TLB; #endif // #if BX_USE_TLB // An instruction cache. Each entry should be exactly 32 bytes, and // this structure should be aligned on a 32-byte boundary to be friendly // with the host cache lines. #if BX_SupportICache bxICache_c iCache BX_CPP_AlignN(32); #endif struct { bx_address rm_addr; // The address offset after resolution. Bit32u paddress1; // physical address after translation of 1st len1 bytes of data Bit32u paddress2; // physical address after translation of 2nd len2 bytes of data Bit32u len1; // Number of bytes in page 1 Bit32u len2; // Number of bytes in page 2 Bit32u pages; // Number of pages access spans (1 or 2). Also used // for the case when a native host pointer is // available for the R-M-W instructions. The host // pointer is stuffed here. Since this field has // to be checked anyways (and thus cached), if it // is greated than 2 (the maximum possible for // normal cases) it is a native pointer and is used // for a direct write access. } address_xlation; #if BX_SUPPORT_X86_64 // data upper 32 bits - not used any longer //Bit32s daddr_upper; // upper bits must be canonical (-virtmax --> + virtmax) // instruction upper 32 bits - not used any longer //Bit32s iaddr_upper; // upper bits must be canonical (-virtmax --> + virtmax) #endif #if BX_EXTERNAL_DEBUGGER void ask (int level, const char *prefix, const char *fmt, va_list ap); #endif #define ArithmeticalFlag(flag, lfMaskShift, eflagsBitShift) \ BX_SMF bx_bool get_##flag##Lazy(void); \ BX_SMF bx_bool getB_##flag(void) { \ if ( (BX_CPU_THIS_PTR lf_flags_status & (0xf<> eflagsBitShift) & 1; \ else \ return get_##flag##Lazy(); \ } \ BX_SMF bx_bool get_##flag(void) { \ if ( (BX_CPU_THIS_PTR lf_flags_status & (0xf<= 4 BX_SMF void SetCR4(Bit32u val_32); #endif BX_SMF void dynamic_translate(void); BX_SMF void dynamic_init(void); BX_SMF unsigned fetchDecode(Bit8u *, bxInstruction_c *, unsigned); #if BX_SUPPORT_X86_64 BX_SMF unsigned fetchDecode64(Bit8u *, bxInstruction_c *, unsigned); #endif BX_SMF void UndefinedOpcode(bxInstruction_c *); BX_SMF void BxError(bxInstruction_c *i); BX_SMF void BxResolveError(bxInstruction_c *i); BX_SMF void Resolve16Mod0Rm0(bxInstruction_c *); BX_SMF void Resolve16Mod0Rm1(bxInstruction_c *); BX_SMF void Resolve16Mod0Rm2(bxInstruction_c *); BX_SMF void Resolve16Mod0Rm3(bxInstruction_c *); BX_SMF void Resolve16Mod0Rm4(bxInstruction_c *); BX_SMF void Resolve16Mod0Rm5(bxInstruction_c *); BX_SMF void Resolve16Mod0Rm6(bxInstruction_c *); BX_SMF void Resolve16Mod0Rm7(bxInstruction_c *); BX_SMF void Resolve16Mod1or2Rm0(bxInstruction_c *); BX_SMF void Resolve16Mod1or2Rm1(bxInstruction_c *); BX_SMF void Resolve16Mod1or2Rm2(bxInstruction_c *); BX_SMF void Resolve16Mod1or2Rm3(bxInstruction_c *); BX_SMF void Resolve16Mod1or2Rm4(bxInstruction_c *); BX_SMF void Resolve16Mod1or2Rm5(bxInstruction_c *); BX_SMF void Resolve16Mod1or2Rm6(bxInstruction_c *); BX_SMF void Resolve16Mod1or2Rm7(bxInstruction_c *); BX_SMF void Resolve32Mod0Rm0(bxInstruction_c *); BX_SMF void Resolve32Mod0Rm1(bxInstruction_c *); BX_SMF void Resolve32Mod0Rm2(bxInstruction_c *); BX_SMF void Resolve32Mod0Rm3(bxInstruction_c *); BX_SMF void Resolve32Mod0Rm5(bxInstruction_c *); BX_SMF void Resolve32Mod0Rm6(bxInstruction_c *); BX_SMF void Resolve32Mod0Rm7(bxInstruction_c *); BX_SMF void Resolve32Mod1or2Rm0(bxInstruction_c *); BX_SMF void Resolve32Mod1or2Rm1(bxInstruction_c *); BX_SMF void Resolve32Mod1or2Rm2(bxInstruction_c *); BX_SMF void Resolve32Mod1or2Rm3(bxInstruction_c *); BX_SMF void Resolve32Mod1or2Rm5(bxInstruction_c *); BX_SMF void Resolve32Mod1or2Rm6(bxInstruction_c *); BX_SMF void Resolve32Mod1or2Rm7(bxInstruction_c *); BX_SMF void Resolve32Mod0Base0(bxInstruction_c *); BX_SMF void Resolve32Mod0Base1(bxInstruction_c *); BX_SMF void Resolve32Mod0Base2(bxInstruction_c *); BX_SMF void Resolve32Mod0Base3(bxInstruction_c *); BX_SMF void Resolve32Mod0Base4(bxInstruction_c *); BX_SMF void Resolve32Mod0Base5(bxInstruction_c *); BX_SMF void Resolve32Mod0Base6(bxInstruction_c *); BX_SMF void Resolve32Mod0Base7(bxInstruction_c *); BX_SMF void Resolve32Mod1or2Base0(bxInstruction_c *); BX_SMF void Resolve32Mod1or2Base1(bxInstruction_c *); BX_SMF void Resolve32Mod1or2Base2(bxInstruction_c *); BX_SMF void Resolve32Mod1or2Base3(bxInstruction_c *); BX_SMF void Resolve32Mod1or2Base4(bxInstruction_c *); BX_SMF void Resolve32Mod1or2Base5(bxInstruction_c *); BX_SMF void Resolve32Mod1or2Base6(bxInstruction_c *); BX_SMF void Resolve32Mod1or2Base7(bxInstruction_c *); #if BX_SUPPORT_X86_64 // 64 bit addressing BX_SMF void Resolve64Mod0Rm0(bxInstruction_c *); BX_SMF void Resolve64Mod0Rm1(bxInstruction_c *); BX_SMF void Resolve64Mod0Rm2(bxInstruction_c *); BX_SMF void Resolve64Mod0Rm3(bxInstruction_c *); BX_SMF void Resolve64Mod0Rm5(bxInstruction_c *); BX_SMF void Resolve64Mod0Rm6(bxInstruction_c *); BX_SMF void Resolve64Mod0Rm7(bxInstruction_c *); BX_SMF void Resolve64Mod0Rm8(bxInstruction_c *); BX_SMF void Resolve64Mod0Rm9(bxInstruction_c *); BX_SMF void Resolve64Mod0Rm10(bxInstruction_c *); BX_SMF void Resolve64Mod0Rm11(bxInstruction_c *); BX_SMF void Resolve64Mod0Rm12(bxInstruction_c *); BX_SMF void Resolve64Mod0Rm13(bxInstruction_c *); BX_SMF void Resolve64Mod0Rm14(bxInstruction_c *); BX_SMF void Resolve64Mod0Rm15(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Rm0(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Rm1(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Rm2(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Rm3(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Rm5(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Rm6(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Rm7(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Rm8(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Rm9(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Rm10(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Rm11(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Rm12(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Rm13(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Rm14(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Rm15(bxInstruction_c *); BX_SMF void Resolve64Mod0Base0(bxInstruction_c *); BX_SMF void Resolve64Mod0Base1(bxInstruction_c *); BX_SMF void Resolve64Mod0Base2(bxInstruction_c *); BX_SMF void Resolve64Mod0Base3(bxInstruction_c *); BX_SMF void Resolve64Mod0Base4(bxInstruction_c *); BX_SMF void Resolve64Mod0Base5(bxInstruction_c *); BX_SMF void Resolve64Mod0Base6(bxInstruction_c *); BX_SMF void Resolve64Mod0Base7(bxInstruction_c *); BX_SMF void Resolve64Mod0Base8(bxInstruction_c *); BX_SMF void Resolve64Mod0Base9(bxInstruction_c *); BX_SMF void Resolve64Mod0Base10(bxInstruction_c *); BX_SMF void Resolve64Mod0Base11(bxInstruction_c *); BX_SMF void Resolve64Mod0Base12(bxInstruction_c *); BX_SMF void Resolve64Mod0Base13(bxInstruction_c *); BX_SMF void Resolve64Mod0Base14(bxInstruction_c *); BX_SMF void Resolve64Mod0Base15(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Base0(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Base1(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Base2(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Base3(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Base4(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Base5(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Base6(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Base7(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Base8(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Base9(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Base10(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Base11(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Base12(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Base13(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Base14(bxInstruction_c *); BX_SMF void Resolve64Mod1or2Base15(bxInstruction_c *); #endif // #if BX_SUPPORT_X86_64 BX_SMF void REP(void (*)(void)); BX_SMF void REP_ZF(void (*)(void), unsigned rep_prefix); #if BX_DEBUGGER BX_SMF void dbg_take_irq(void); BX_SMF void dbg_force_interrupt(unsigned vector); BX_SMF void dbg_take_dma(void); BX_SMF bx_bool dbg_get_cpu(bx_dbg_cpu_t *cpu); BX_SMF bx_bool dbg_set_cpu(bx_dbg_cpu_t *cpu); BX_SMF bx_bool dbg_set_reg(unsigned reg, Bit32u val); BX_SMF Bit32u dbg_get_reg(unsigned reg); BX_SMF bx_bool dbg_get_sreg(bx_dbg_sreg_t *sreg, unsigned sreg_no); BX_SMF unsigned dbg_query_pending(void); BX_SMF Bit32u dbg_get_descriptor_l(bx_descriptor_t *); BX_SMF Bit32u dbg_get_descriptor_h(bx_descriptor_t *); BX_SMF Bit32u dbg_get_eflags(void); BX_SMF bx_bool dbg_is_begin_instr_bpoint(Bit32u cs, Bit32u eip, Bit32u laddr, Bit32u is_32); BX_SMF bx_bool dbg_is_end_instr_bpoint(Bit32u cs, Bit32u eip, Bit32u laddr, Bit32u is_32); #endif #if BX_DEBUGGER || BX_DISASM || BX_INSTRUMENTATION || BX_GDBSTUB BX_SMF void dbg_xlate_linear2phy(Bit32u linear, Bit32u *phy, bx_bool *valid); #endif BX_SMF void atexit(void); // now for some ancillary functions... BX_SMF void cpu_loop(Bit32s max_instr_count); BX_SMF unsigned handleAsyncEvent(void); BX_SMF void boundaryFetch(bxInstruction_c *i); BX_SMF void decode_exgx16(unsigned need_fetch); BX_SMF void decode_exgx32(unsigned need_fetch); BX_SMF void prefetch(void); // revalidate_prefetch_q is now a no-op, due to the newer EIP window // technique. BX_SMF BX_CPP_INLINE void revalidate_prefetch_q(void) { } BX_SMF BX_CPP_INLINE void invalidate_prefetch_q(void) { BX_CPU_THIS_PTR eipPageWindowSize = 0; } BX_SMF void write_virtual_checks(bx_segment_reg_t *seg, bx_address offset, unsigned length); BX_SMF void read_virtual_checks(bx_segment_reg_t *seg, bx_address offset, unsigned length); BX_SMF void write_virtual_byte(unsigned seg, bx_address offset, Bit8u *data); BX_SMF void write_virtual_word(unsigned seg, bx_address offset, Bit16u *data); BX_SMF void write_virtual_dword(unsigned seg, bx_address offset, Bit32u *data); BX_SMF void write_virtual_qword(unsigned seg, bx_address offset, Bit64u *data); BX_SMF void read_virtual_byte(unsigned seg, bx_address offset, Bit8u *data); BX_SMF void read_virtual_word(unsigned seg, bx_address offset, Bit16u *data); BX_SMF void read_virtual_dword(unsigned seg, bx_address offset, Bit32u *data); BX_SMF void read_virtual_qword(unsigned seg, bx_address offset, Bit64u *data); BX_SMF void read_RMW_virtual_byte(unsigned seg, bx_address offset, Bit8u *data); BX_SMF void read_RMW_virtual_word(unsigned seg, bx_address offset, Bit16u *data); BX_SMF void read_RMW_virtual_dword(unsigned seg, bx_address offset, Bit32u *data); BX_SMF void read_RMW_virtual_qword(unsigned seg, bx_address offset, Bit64u *data); BX_SMF void write_RMW_virtual_byte(Bit8u val8); BX_SMF void write_RMW_virtual_word(Bit16u val16); BX_SMF void write_RMW_virtual_dword(Bit32u val32); BX_SMF void write_RMW_virtual_qword(Bit64u val64); #define Write_RMW_virtual_byte(val8) write_RMW_virtual_byte(val8) #define Write_RMW_virtual_word(val16) write_RMW_virtual_word(val16) #define Write_RMW_virtual_dword(val32) write_RMW_virtual_dword(val32) #define Write_RMW_virtual_qword(val64) write_RMW_virtual_qword(val64) #if BX_SUPPORT_SSE BX_SMF void readVirtualDQword(unsigned s, bx_address off, Bit8u *data); BX_SMF void readVirtualDQwordAligned(unsigned s, bx_address off, Bit8u *data); BX_SMF void writeVirtualDQword(unsigned s, bx_address off, Bit8u *data); BX_SMF void writeVirtualDQwordAligned(unsigned s, bx_address off, Bit8u *data); #endif BX_SMF void access_linear(bx_address address, unsigned length, unsigned pl, unsigned rw, void *data); BX_SMF Bit32u itranslate_linear(bx_address laddr, unsigned pl); BX_SMF Bit32u dtranslate_linear(bx_address laddr, unsigned pl, unsigned rw); BX_SMF void TLB_flush(bx_bool invalidateGlobal); BX_SMF void TLB_init(void); BX_SMF void set_INTR(bx_bool value); BX_SMF char *strseg(bx_segment_reg_t *seg); BX_SMF void interrupt(Bit8u vector, bx_bool is_INT, bx_bool is_error_code, Bit16u error_code); #if BX_CPU_LEVEL >= 2 BX_SMF void exception(unsigned vector, Bit16u error_code, bx_bool is_INT) BX_CPP_AttrNoReturn(); #endif BX_SMF int int_number(bx_segment_reg_t *seg); BX_SMF void shutdown_cpu(void); BX_SMF void CR3_change(bx_address value); BX_SMF void pagingCR0Changed(Bit32u oldCR0, Bit32u newCR0); BX_SMF void pagingCR4Changed(Bit32u oldCR4, Bit32u newCR4); BX_SMF void pagingA20Changed(void); BX_SMF void reset(unsigned source); BX_SMF void jump_protected(bxInstruction_c *, Bit16u cs, bx_address disp); BX_SMF void call_protected(bxInstruction_c *, Bit16u cs, bx_address disp); BX_SMF void return_protected(bxInstruction_c *, Bit16u pop_bytes); BX_SMF void iret_protected(bxInstruction_c *); BX_SMF void validate_seg_regs(void); BX_SMF void stack_return_to_v86(Bit32u new_eip, Bit32u raw_cs_selector, Bit32u flags32); BX_SMF void stack_return_from_v86(bxInstruction_c *); BX_SMF void init_v8086_mode(void); BX_SMF void v8086_message(void); BX_SMF void task_switch(bx_selector_t *selector, bx_descriptor_t *descriptor, unsigned source, Bit32u dword1, Bit32u dword2); BX_SMF void get_SS_ESP_from_TSS(unsigned pl, Bit16u *ss, Bit32u *esp); #if BX_SUPPORT_X86_64 BX_SMF void get_RSP_from_TSS(unsigned pl, Bit64u *rsp); #endif BX_SMF void write_flags(Bit16u flags, bx_bool change_IOPL, bx_bool change_IF); BX_SMF void write_eflags(Bit32u eflags, bx_bool change_IOPL, bx_bool change_IF, bx_bool change_VM, bx_bool change_RF); BX_SMF void writeEFlags(Bit32u eflags, Bit32u changeMask); // Newer variant. BX_SMF Bit16u read_flags(void); BX_SMF Bit32u read_eflags(void); BX_SMF Bit32u get_segment_base(unsigned seg); BX_SMF Bit8u inp8(Bit16u addr); BX_SMF void outp8(Bit16u addr, Bit8u value); BX_SMF Bit16u inp16(Bit16u addr); BX_SMF void outp16(Bit16u addr, Bit16u value); BX_SMF Bit32u inp32(Bit16u addr); BX_SMF void outp32(Bit16u addr, Bit32u value); BX_SMF bx_bool allow_io(Bit16u addr, unsigned len); BX_SMF void enter_protected_mode(void); BX_SMF void enter_real_mode(void); BX_SMF void parse_selector(Bit16u raw_selector, bx_selector_t *selector); BX_SMF void parse_descriptor(Bit32u dword1, Bit32u dword2, bx_descriptor_t *temp); BX_SMF void load_ldtr(bx_selector_t *selector, bx_descriptor_t *descriptor); BX_SMF void load_cs(bx_selector_t *selector, bx_descriptor_t *descriptor, Bit8u cpl); BX_SMF void load_ss(bx_selector_t *selector, bx_descriptor_t *descriptor, Bit8u cpl); BX_SMF void fetch_raw_descriptor(bx_selector_t *selector, Bit32u *dword1, Bit32u *dword2, Bit8u exception); BX_SMF void load_seg_reg(bx_segment_reg_t *seg, Bit16u new_value); #if BX_SUPPORT_X86_64 BX_SMF void loadSRegLMNominal(unsigned seg, unsigned selector, bx_address base, unsigned dpl); #endif BX_SMF bx_bool fetch_raw_descriptor2(bx_selector_t *selector, Bit32u *dword1, Bit32u *dword2); BX_SMF void push_16(Bit16u value16); BX_SMF void push_32(Bit32u value32); #if BX_SUPPORT_X86_64 BX_SMF void push_64(Bit64u value64); #endif BX_SMF void pop_16(Bit16u *value16_ptr); BX_SMF void pop_32(Bit32u *value32_ptr); #if BX_SUPPORT_X86_64 BX_SMF void pop_64(Bit64u *value64_ptr); #endif BX_SMF bx_bool can_push(bx_descriptor_t *descriptor, Bit32u esp, Bit32u bytes); BX_SMF bx_bool can_pop(Bit32u bytes); BX_SMF void sanity_checks(void); BX_SMF void debug(Bit32u offset); #if BX_EXTERNAL_DEBUGGER BX_SMF void trap_debugger(bx_bool callnow); #endif #if BX_X86_DEBUGGER // x86 hardware debug support BX_SMF Bit32u hwdebug_compare(Bit32u laddr, unsigned size, unsigned opa, unsigned opb); #endif BX_CPP_INLINE const bx_gen_reg_t *get_gen_reg() { return gen_reg; } DECLARE_EFLAGS_ACCESSORS() DECLARE_EFLAG_ACCESSOR (DF, 10) DECLARE_EFLAG_ACCESSOR (ID, 21) DECLARE_EFLAG_ACCESSOR (VP, 20) DECLARE_EFLAG_ACCESSOR (VF, 19) DECLARE_EFLAG_ACCESSOR (AC, 18) DECLARE_EFLAG_ACCESSOR_VM( 17) DECLARE_EFLAG_ACCESSOR (RF, 16) DECLARE_EFLAG_ACCESSOR (NT, 14) DECLARE_EFLAG_ACCESSOR_IOPL( 12) DECLARE_EFLAG_ACCESSOR (IF, 9) DECLARE_EFLAG_ACCESSOR (TF, 8) BX_SMF BX_CPP_INLINE void set_CF(bx_bool val); BX_SMF BX_CPP_INLINE void set_AF(bx_bool val); BX_SMF BX_CPP_INLINE void set_ZF(bx_bool val); BX_SMF BX_CPP_INLINE void set_SF(bx_bool val); BX_SMF BX_CPP_INLINE void set_OF(bx_bool val); BX_SMF BX_CPP_INLINE void set_PF(bx_bool val); BX_SMF BX_CPP_INLINE void set_PF_base(Bit8u val); DECLARE_8BIT_REGISTER_ACCESSORS(AL); DECLARE_8BIT_REGISTER_ACCESSORS(AH); DECLARE_8BIT_REGISTER_ACCESSORS(BL); DECLARE_8BIT_REGISTER_ACCESSORS(BH); DECLARE_8BIT_REGISTER_ACCESSORS(CL); DECLARE_8BIT_REGISTER_ACCESSORS(CH); DECLARE_8BIT_REGISTER_ACCESSORS(DL); DECLARE_8BIT_REGISTER_ACCESSORS(DH); DECLARE_16BIT_REGISTER_ACCESSORS(AX); DECLARE_16BIT_REGISTER_ACCESSORS(BX); DECLARE_16BIT_REGISTER_ACCESSORS(CX); DECLARE_16BIT_REGISTER_ACCESSORS(DX); DECLARE_16BIT_REGISTER_ACCESSORS(SP); DECLARE_16BIT_REGISTER_ACCESSORS(BP); DECLARE_16BIT_REGISTER_ACCESSORS(SI); DECLARE_16BIT_REGISTER_ACCESSORS(DI); DECLARE_32BIT_REGISTER_ACCESSORS(EAX); DECLARE_32BIT_REGISTER_ACCESSORS(EBX); DECLARE_32BIT_REGISTER_ACCESSORS(ECX); DECLARE_32BIT_REGISTER_ACCESSORS(EDX); DECLARE_32BIT_REGISTER_ACCESSORS(ESP); DECLARE_32BIT_REGISTER_ACCESSORS(EBP); DECLARE_32BIT_REGISTER_ACCESSORS(ESI); DECLARE_32BIT_REGISTER_ACCESSORS(EDI); BX_CPP_INLINE Bit8u get_CPL(void); BX_CPP_INLINE Bit32u get_EIP(void); BX_SMF BX_CPP_INLINE bx_bool real_mode(void); BX_SMF BX_CPP_INLINE bx_bool protected_mode(void); BX_SMF BX_CPP_INLINE bx_bool v8086_mode(void); #if BX_SUPPORT_APIC bx_local_apic_c local_apic; #endif }; #if BX_SupportICache BX_CPP_INLINE void bxICache_c::decWriteStamp(BX_CPU_C *cpu, Bit32u a20Addr) { // Increment page write stamp, so iCache entries with older stamps // are effectively invalidated. Bit32u pageIndex = a20Addr >> 12; Bit32u writeStamp = cpu->iCache.pageWriteStampTable[pageIndex]; if ( writeStamp & 0x20000000 ) { // Page possibly contains iCache code. if ( writeStamp & ICacheWriteStampMask ) { // Short case: there is room to decrement the generation counter. cpu->iCache.pageWriteStampTable[pageIndex]--; } else { // Long case: there is no more room to decrement. We have dump // all iCache entries which can possibly hash to this page since // we don't keep track of individual entries. // Take the hash of the 0th page offset. unsigned iCacheHash = cpu->iCache.hash(a20Addr & 0xfffff000); for (unsigned o=0; o<4096; o++) { cpu->iCache.entry[iCacheHash].writeStamp = ICacheWriteStampInvalid; iCacheHash = (iCacheHash + 1) % BxICacheEntries; } // Reset write stamp to highest value to begin the decrementing process // again. cpu->iCache.pageWriteStampTable[pageIndex] = ICacheWriteStampInvalid; } } } BX_CPP_INLINE Bit32u bxICache_c::createFetchModeMask(BX_CPU_C *cpu) { return (cpu->sregs[BX_SEG_REG_CS].cache.u.segment.d_b << 31) #if BX_SUPPORT_X86_64 | ((cpu->cpu_mode == BX_MODE_LONG_64)<<30) #endif | (1<<29) // iCache code. ; } #endif #if BX_X86_DEBUGGER #define BX_HWDebugInstruction 0x00 #define BX_HWDebugMemW 0x01 #define BX_HWDebugIO 0x02 #define BX_HWDebugMemRW 0x03 #endif IMPLEMENT_8LBIT_REGISTER_ACCESSORS(AL); IMPLEMENT_8HBIT_REGISTER_ACCESSORS(AH); IMPLEMENT_8LBIT_REGISTER_ACCESSORS(BL); IMPLEMENT_8HBIT_REGISTER_ACCESSORS(BH); IMPLEMENT_8LBIT_REGISTER_ACCESSORS(CL); IMPLEMENT_8HBIT_REGISTER_ACCESSORS(CH); IMPLEMENT_8LBIT_REGISTER_ACCESSORS(DL); IMPLEMENT_8HBIT_REGISTER_ACCESSORS(DH); IMPLEMENT_16BIT_REGISTER_ACCESSORS(AX); IMPLEMENT_16BIT_REGISTER_ACCESSORS(BX); IMPLEMENT_16BIT_REGISTER_ACCESSORS(CX); IMPLEMENT_16BIT_REGISTER_ACCESSORS(DX); IMPLEMENT_16BIT_REGISTER_ACCESSORS(SP); IMPLEMENT_16BIT_REGISTER_ACCESSORS(BP); IMPLEMENT_16BIT_REGISTER_ACCESSORS(SI); IMPLEMENT_16BIT_REGISTER_ACCESSORS(DI); IMPLEMENT_32BIT_REGISTER_ACCESSORS(EAX); IMPLEMENT_32BIT_REGISTER_ACCESSORS(EBX); IMPLEMENT_32BIT_REGISTER_ACCESSORS(ECX); IMPLEMENT_32BIT_REGISTER_ACCESSORS(EDX); IMPLEMENT_32BIT_REGISTER_ACCESSORS(ESP); IMPLEMENT_32BIT_REGISTER_ACCESSORS(EBP); IMPLEMENT_32BIT_REGISTER_ACCESSORS(ESI); IMPLEMENT_32BIT_REGISTER_ACCESSORS(EDI); BX_SMF BX_CPP_INLINE Bit8u BX_CPU_C_PREFIX get_CPL(void) { return (BX_CPU_THIS_PTR sregs[BX_SEG_REG_CS].selector.rpl); } BX_CPP_INLINE Bit32u BX_CPU_C::get_EIP(void) { return (BX_CPU_THIS_PTR dword.eip); } BX_SMF BX_CPP_INLINE Bit32u BX_CPU_C_PREFIX get_segment_base(unsigned seg) { return (BX_CPU_THIS_PTR sregs[seg].cache.u.segment.base); } BX_CPP_INLINE bx_bool BX_CPU_C::real_mode(void) { return( BX_CPU_THIS_PTR realMode ); }; BX_CPP_INLINE bx_bool BX_CPU_C::v8086_mode(void) { return( BX_CPU_THIS_PTR v8086Mode ); } BX_CPP_INLINE bx_bool BX_CPU_C::protected_mode(void) { return( BX_CPU_THIS_PTR protectedMode ); } BX_CPP_INLINE void BX_CPU_C::set_CF(bx_bool val) { BX_CPU_THIS_PTR lf_flags_status &= 0xfffff0; BX_CPU_THIS_PTR eflags.val32 &= ~(1<<0); BX_CPU_THIS_PTR eflags.val32 |= (!!val); } BX_CPP_INLINE void BX_CPU_C::set_AF(bx_bool val) { BX_CPU_THIS_PTR lf_flags_status &= 0xfff0ff; BX_CPU_THIS_PTR eflags.val32 &= ~(1<<4); BX_CPU_THIS_PTR eflags.val32 |= (!!val)<<4; } BX_CPP_INLINE void BX_CPU_C::set_ZF(bx_bool val) { BX_CPU_THIS_PTR lf_flags_status &= 0xff0fff; BX_CPU_THIS_PTR eflags.val32 &= ~(1<<6); BX_CPU_THIS_PTR eflags.val32 |= (!!val)<<6; } BX_CPP_INLINE void BX_CPU_C::set_SF(bx_bool val) { BX_CPU_THIS_PTR lf_flags_status &= 0xf0ffff; BX_CPU_THIS_PTR eflags.val32 &= ~(1<<7); BX_CPU_THIS_PTR eflags.val32 |= (!!val)<<7; } BX_CPP_INLINE void BX_CPU_C::set_OF(bx_bool val) { BX_CPU_THIS_PTR lf_flags_status &= 0x0fffff; BX_CPU_THIS_PTR eflags.val32 &= ~(1<<11); BX_CPU_THIS_PTR eflags.val32 |= (!!val)<<11; } BX_CPP_INLINE void BX_CPU_C::set_PF(bx_bool val) { BX_CPU_THIS_PTR lf_flags_status &= 0xffff0f; BX_CPU_THIS_PTR eflags.val32 &= ~(1<<2); BX_CPU_THIS_PTR eflags.val32 |= (!!val)<<2; } BOCHSAPI extern const bx_bool bx_parity_lookup[256]; BX_CPP_INLINE void BX_CPU_C::set_PF_base(Bit8u val) { BX_CPU_THIS_PTR lf_flags_status &= 0xffff0f; val = bx_parity_lookup[val]; // Always returns 0 or 1. BX_CPU_THIS_PTR eflags.val32 &= ~(1<<2); BX_CPU_THIS_PTR eflags.val32 |= val<<2; } #define SET_FLAGS_OSZAPC_8(op1, op2, result, ins) { \ BX_CPU_THIS_PTR oszapc.op1_8 = op1; \ BX_CPU_THIS_PTR oszapc.op2_8 = op2; \ BX_CPU_THIS_PTR oszapc.result_8 = result; \ BX_CPU_THIS_PTR oszapc.instr = ins; \ BX_CPU_THIS_PTR lf_flags_status = BX_LF_MASK_OSZAPC; \ } #define SET_FLAGS_OSZAPC_8_CF(op1, op2, result, ins, last_CF) { \ BX_CPU_THIS_PTR oszapc.op1_8 = op1; \ BX_CPU_THIS_PTR oszapc.op2_8 = op2; \ BX_CPU_THIS_PTR oszapc.result_8 = result; \ BX_CPU_THIS_PTR oszapc.instr = ins; \ BX_CPU_THIS_PTR oszapc.prev_CF = last_CF; \ BX_CPU_THIS_PTR lf_flags_status = BX_LF_MASK_OSZAPC; \ } #define SET_FLAGS_OSZAPC_16(op1, op2, result, ins) { \ BX_CPU_THIS_PTR oszapc.op1_16 = op1; \ BX_CPU_THIS_PTR oszapc.op2_16 = op2; \ BX_CPU_THIS_PTR oszapc.result_16 = result; \ BX_CPU_THIS_PTR oszapc.instr = ins; \ BX_CPU_THIS_PTR lf_flags_status = BX_LF_MASK_OSZAPC; \ } #define SET_FLAGS_OSZAPC_16_CF(op1, op2, result, ins, last_CF) { \ BX_CPU_THIS_PTR oszapc.op1_16 = op1; \ BX_CPU_THIS_PTR oszapc.op2_16 = op2; \ BX_CPU_THIS_PTR oszapc.result_16 = result; \ BX_CPU_THIS_PTR oszapc.instr = ins; \ BX_CPU_THIS_PTR oszapc.prev_CF = last_CF; \ BX_CPU_THIS_PTR lf_flags_status = BX_LF_MASK_OSZAPC; \ } #define SET_FLAGS_OSZAPC_32(op1, op2, result, ins) { \ BX_CPU_THIS_PTR oszapc.op1_32 = op1; \ BX_CPU_THIS_PTR oszapc.op2_32 = op2; \ BX_CPU_THIS_PTR oszapc.result_32 = result; \ BX_CPU_THIS_PTR oszapc.instr = ins; \ BX_CPU_THIS_PTR lf_flags_status = BX_LF_MASK_OSZAPC; \ } #define SET_FLAGS_OSZAPC_32_CF(op1, op2, result, ins, last_CF) { \ BX_CPU_THIS_PTR oszapc.op1_32 = op1; \ BX_CPU_THIS_PTR oszapc.op2_32 = op2; \ BX_CPU_THIS_PTR oszapc.result_32 = result; \ BX_CPU_THIS_PTR oszapc.instr = ins; \ BX_CPU_THIS_PTR oszapc.prev_CF = last_CF; \ BX_CPU_THIS_PTR lf_flags_status = BX_LF_MASK_OSZAPC; \ } #define SET_FLAGS_OSZAPC_64(op1, op2, result, ins) { \ BX_CPU_THIS_PTR oszapc.op1_64 = op1; \ BX_CPU_THIS_PTR oszapc.op2_64 = op2; \ BX_CPU_THIS_PTR oszapc.result_64 = result; \ BX_CPU_THIS_PTR oszapc.instr = ins; \ BX_CPU_THIS_PTR lf_flags_status = BX_LF_MASK_OSZAPC; \ } #define SET_FLAGS_OSZAPC_64_CF(op1, op2, result, ins, last_CF) { \ BX_CPU_THIS_PTR oszapc.op1_64 = op1; \ BX_CPU_THIS_PTR oszapc.op2_64 = op2; \ BX_CPU_THIS_PTR oszapc.result_64 = result; \ BX_CPU_THIS_PTR oszapc.instr = ins; \ BX_CPU_THIS_PTR oszapc.prev_CF = last_CF; \ BX_CPU_THIS_PTR lf_flags_status = BX_LF_MASK_OSZAPC; \ } #define SET_FLAGS_OSZAP_8(op1, op2, result, ins) { \ BX_CPU_THIS_PTR oszap.op1_8 = op1; \ BX_CPU_THIS_PTR oszap.op2_8 = op2; \ BX_CPU_THIS_PTR oszap.result_8 = result; \ BX_CPU_THIS_PTR oszap.instr = ins; \ BX_CPU_THIS_PTR lf_flags_status = (BX_CPU_THIS_PTR lf_flags_status & 0x00000f) | BX_LF_MASK_OSZAP; \ } #define SET_FLAGS_OSZAP_16(op1, op2, result, ins) { \ BX_CPU_THIS_PTR oszap.op1_16 = op1; \ BX_CPU_THIS_PTR oszap.op2_16 = op2; \ BX_CPU_THIS_PTR oszap.result_16 = result; \ BX_CPU_THIS_PTR oszap.instr = ins; \ BX_CPU_THIS_PTR lf_flags_status = (BX_CPU_THIS_PTR lf_flags_status & 0x00000f) | BX_LF_MASK_OSZAP; \ } #define SET_FLAGS_OSZAP_32(op1, op2, result, ins) { \ BX_CPU_THIS_PTR oszap.op1_32 = op1; \ BX_CPU_THIS_PTR oszap.op2_32 = op2; \ BX_CPU_THIS_PTR oszap.result_32 = result; \ BX_CPU_THIS_PTR oszap.instr = ins; \ BX_CPU_THIS_PTR lf_flags_status = (BX_CPU_THIS_PTR lf_flags_status & 0x00000f) | BX_LF_MASK_OSZAP; \ } #define SET_FLAGS_OSZAP_64(op1, op2, result, ins) { \ BX_CPU_THIS_PTR oszap.op1_64 = op1; \ BX_CPU_THIS_PTR oszap.op2_64 = op2; \ BX_CPU_THIS_PTR oszap.result_64 = result; \ BX_CPU_THIS_PTR oszap.instr = ins; \ BX_CPU_THIS_PTR lf_flags_status = (BX_CPU_THIS_PTR lf_flags_status & 0x00000f) | BX_LF_MASK_OSZAP; \ } #define SET_FLAGS_OxxxxC(new_of, new_cf) { \ BX_CPU_THIS_PTR eflags.val32 &= ~((1<<11) | (1<<0)); \ BX_CPU_THIS_PTR eflags.val32 |= ((!!new_of)<<11) | ((!!new_cf)<<0); \ BX_CPU_THIS_PTR lf_flags_status &= 0x0ffff0; \ /* ??? could also mark other bits undefined here */ \ } IMPLEMENT_EFLAGS_ACCESSORS() IMPLEMENT_EFLAG_ACCESSOR (DF, 10) IMPLEMENT_EFLAG_ACCESSOR (ID, 21) IMPLEMENT_EFLAG_ACCESSOR (VP, 20) IMPLEMENT_EFLAG_ACCESSOR (VF, 19) IMPLEMENT_EFLAG_ACCESSOR (AC, 18) IMPLEMENT_EFLAG_ACCESSOR_VM( 17) IMPLEMENT_EFLAG_ACCESSOR (RF, 16) IMPLEMENT_EFLAG_ACCESSOR (NT, 14) IMPLEMENT_EFLAG_ACCESSOR_IOPL( 12) IMPLEMENT_EFLAG_ACCESSOR (IF, 9) IMPLEMENT_EFLAG_ACCESSOR (TF, 8) #define BX_REPE_PREFIX 10 #define BX_REPNE_PREFIX 11 #define BX_TASK_FROM_JUMP 10 #define BX_TASK_FROM_CALL_OR_INT 11 #define BX_TASK_FROM_IRET 12 // // For decoding... // // If the Immediate bit is set, the lowest 3 bits of the attribute // specify which kinds of immediate data a required by instruction. #define BxImmediate 0x000f // bits 3..0: any immediate #define BxImmediate_Ib 0x0001 // 8 bits regardless #define BxImmediate_Ib_SE 0x0002 // sign extend to OS size #define BxImmediate_Iv 0x0003 // 16 or 32 depending on OS size #define BxImmediate_Iw 0x0004 // 16 bits regardless #define BxImmediate_IvIw 0x0005 // call_Ap #define BxImmediate_IwIb 0x0006 // enter_IwIb #define BxImmediate_O 0x0007 // mov_ALOb, mov_ObAL, mov_eAXOv, mov_OveAX #define BxImmediate_BrOff8 0x0008 // Relative branch offset byte #define BxImmediate_BrOff16 0x0009 // Relative branch offset word #define BxImmediate_BrOff32 BxImmediate_Iv #if BX_SUPPORT_X86_64 #define BxImmediate_Iq 0x000A // 64 bit override #endif #define BxPrefix 0x0010 // bit 4 #define BxAnother 0x0020 // bit 5 #define BxSplitMod11b 0x0040 // bit 6 #define BxPrefixSSE 0x0080 // bit 7 #define BxRepeatable 0x0800 // bit 11 (pass through to metaInfo field) #define BxRepeatableZF 0x1000 // bit 12 (pass through to metaInfo field) #define BxGroupN 0x0100 // bits 8 #define BxGroup1 BxGroupN #define BxGroup2 BxGroupN #define BxGroup3 BxGroupN #define BxGroup4 BxGroupN #define BxGroup5 BxGroupN #define BxGroup6 BxGroupN #define BxGroup7 BxGroupN #define BxGroup8 BxGroupN #define BxGroup9 BxGroupN #define BxGroup12 BxGroupN #define BxGroup13 BxGroupN #define BxGroup14 BxGroupN #define BxGroup15 BxGroupN #define BxGroup16 BxGroupN #if BX_DEBUGGER typedef enum _show_flags { Flag_call = 0x1, Flag_ret = 0x2, Flag_int = 0x4, Flag_iret = 0x8, Flag_intsig = 0x10 } show_flags_t; #endif // Can be used as LHS or RHS. #define RMAddr(i) (BX_CPU_THIS_PTR address_xlation.rm_addr) #if (defined(__i386__) && defined(__GNUC__) && BX_SupportHostAsms) #define setEFlagsOSZAPC(flags32) { \ BX_CPU_THIS_PTR eflags.val32 = \ (BX_CPU_THIS_PTR eflags.val32 & ~EFlagsOSZAPCMask) | \ (flags32 & EFlagsOSZAPCMask); \ BX_CPU_THIS_PTR lf_flags_status = 0; \ } #define setEFlagsOSZAP(flags32) { \ BX_CPU_THIS_PTR eflags.val32 = \ (BX_CPU_THIS_PTR eflags.val32 & ~EFlagsOSZAPMask) | \ (flags32 & EFlagsOSZAPMask); \ BX_CPU_THIS_PTR lf_flags_status &= 0x00000f; \ } // This section defines some convience inline functions which do the // dirty work of asm() statements for arithmetic instructions on x86 hosts. // Essentially these speed up eflags processing since the value of the // eflags register can be read directly on x86 hosts, after the // arithmetic operations. static inline void asmAdd16(Bit16u &sum_16, Bit16u op1_16, Bit16u op2_16, Bit32u &flags32) { asm ( "addw %3, %1 \n\t" "pushfl \n\t" "popl %0" : "=g" (flags32), "=r" (sum_16) : "1" (op1_16), "g" (op2_16) : "cc" ); } static inline void asmAdd32(Bit32u &sum_32, Bit32u op1_32, Bit32u op2_32, Bit32u &flags32) { asm ( "addl %3, %1 \n\t" "pushfl \n\t" "popl %0" : "=g" (flags32), "=r" (sum_32) : "1" (op1_32), "g" (op2_32) : "cc" ); } static inline void asmSub16(Bit16u &diff_16, Bit16u op1_16, Bit16u op2_16, Bit32u &flags32) { asm ( "subw %3, %1\n\t" "pushfl \n\t" "popl %0" : "=g" (flags32), "=r" (diff_16) : "1" (op1_16), "g" (op2_16) : "cc" ); } static inline void asmSub32(Bit32u &diff_32, Bit32u op1_32, Bit32u op2_32, Bit32u &flags32) { asm ( "subl %3, %1\n\t" "pushfl \n\t" "popl %0" : "=g" (flags32), "=r" (diff_32) : "1" (op1_32), "g" (op2_32) : "cc" ); } static inline void asmCmp8(Bit8u op1_8, Bit8u op2_8, Bit32u &flags32) { asm ( "cmpb %2, %1\n\t" "pushfl \n\t" "popl %0" : "=g" (flags32) : "q" (op1_8), "mq" (op2_8) : "cc" ); } static inline void asmCmp16(Bit16u op1_16, Bit16u op2_16, Bit32u &flags32) { asm ( "cmpw %2, %1\n\t" "pushfl \n\t" "popl %0" : "=g" (flags32) : "r" (op1_16), "g" (op2_16) : "cc" ); } static inline void asmCmp32(Bit32u op1_32, Bit32u op2_32, Bit32u &flags32) { asm ( "cmpl %2, %1\n\t" "pushfl \n\t" "popl %0" : "=g" (flags32) : "r" (op1_32), "g" (op2_32) : "cc" ); } static inline void asmInc16(Bit16u &op1_16, Bit32u &flags32) { asm ( "incw %1 \n\t" "pushfl \n\t" "popl %0" : "=g" (flags32), "=g" (op1_16) : "1" (op1_16) : "cc" ); } static inline void asmInc32(Bit32u &op1_32, Bit32u &flags32) { asm ( "incl %1 \n\t" "pushfl \n\t" "popl %0" : "=g" (flags32), "=g" (op1_32) : "1" (op1_32) : "cc" ); } static inline void asmDec16(Bit16u &op1_16, Bit32u &flags32) { asm ( "decw %1 \n\t" "pushfl \n\t" "popl %0" : "=g" (flags32), "=g" (op1_16) : "1" (op1_16) : "cc" ); } static inline void asmDec32(Bit32u &op1_32, Bit32u &flags32) { asm ( "decl %1 \n\t" "pushfl \n\t" "popl %0" : "=g" (flags32), "=g" (op1_32) : "1" (op1_32) : "cc" ); } static inline void asmXor16(Bit16u &result_16, Bit16u op1_16, Bit16u op2_16, Bit32u &flags32) { asm ( "xorw %3, %1 \n\t" "pushfl \n\t" "popl %0" : "=g" (flags32), "=r" (result_16) : "1" (op1_16), "g" (op2_16) : "cc" ); } static inline void asmXor32(Bit32u &result_32, Bit32u op1_32, Bit32u op2_32, Bit32u &flags32) { asm ( "xorl %3, %1 \n\t" "pushfl \n\t" "popl %0" : "=g" (flags32), "=r" (result_32) : "1" (op1_32), "g" (op2_32) : "cc" ); } static inline void asmOr8(Bit8u &result_8, Bit8u op1_8, Bit8u op2_8, Bit32u &flags32) { asm ( "orb %3, %1 \n\t" "pushfl \n\t" "popl %0" : "=g" (flags32), "=q" (result_8) : "1" (op1_8), "mq" (op2_8) : "cc" ); } static inline void asmOr16(Bit16u &result_16, Bit16u op1_16, Bit16u op2_16, Bit32u &flags32) { asm ( "orw %3, %1 \n\t" "pushfl \n\t" "popl %0" : "=g" (flags32), "=r" (result_16) : "1" (op1_16), "g" (op2_16) : "cc" ); } static inline void asmOr32(Bit32u &result_32, Bit32u op1_32, Bit32u op2_32, Bit32u &flags32) { asm ( "orl %3, %1 \n\t" "pushfl \n\t" "popl %0" : "=g" (flags32), "=r" (result_32) : "1" (op1_32), "g" (op2_32) : "cc" ); } static inline void asmAnd8(Bit8u &result_8, Bit8u op1_8, Bit8u op2_8, Bit32u &flags32) { asm ( "andb %3, %1\n\t" "pushfl \n\t" "popl %0" : "=g" (flags32), "=q" (result_8) : "1" (op1_8), "mq" (op2_8) : "cc" ); } static inline void asmAnd16(Bit16u &result_16, Bit16u op1_16, Bit16u op2_16, Bit32u &flags32) { asm ( "andw %3, %1 \n\t" "pushfl \n\t" "popl %0" : "=g" (flags32), "=r" (result_16) : "1" (op1_16), "g" (op2_16) : "cc" ); } static inline void asmAnd32(Bit32u &result_32, Bit32u op1_32, Bit32u op2_32, Bit32u &flags32) { asm ( "andl %3, %1 \n\t" "pushfl \n\t" "popl %0" : "=g" (flags32), "=r" (result_32) : "1" (op1_32), "g" (op2_32) : "cc" ); } static inline void asmTest8(Bit8u op1_8, Bit8u op2_8, Bit32u &flags32) { asm ( "testb %2, %1\n\t" "pushfl \n\t" "popl %0" : "=g" (flags32) : "q" (op1_8), "mq" (op2_8) : "cc" ); } static inline void asmTest16(Bit16u op1_16, Bit16u op2_16, Bit32u &flags32) { asm ( "testw %2, %1\n\t" "pushfl \n\t" "popl %0" : "=g" (flags32) : "r" (op1_16), "g" (op2_16) : "cc" ); } static inline void asmTest32(Bit32u op1_32, Bit32u op2_32, Bit32u &flags32) { asm ( "testl %2, %1\n\t" "pushfl \n\t" "popl %0" : "=g" (flags32) : "r" (op1_32), "g" (op2_32) : "cc" ); } static inline void asmShr16(Bit16u &result_16, Bit16u op1_16, unsigned count, Bit32u &flags32) { asm ( "shrw %%cl, %1\n\t" "pushfl \n\t" "popl %0" : "=g" (flags32), "=g" (result_16) : "1" (op1_16), "c" (count) : "cc" ); } static inline void asmShr32(Bit32u &result_32, Bit32u op1_32, unsigned count, Bit32u &flags32) { asm ( "shrl %%cl, %1\n\t" "pushfl \n\t" "popl %0" : "=g" (flags32), "=g" (result_32) : "1" (op1_32), "c" (count) : "cc" ); } #endif #endif // #ifndef BX_CPU_H