/*
* 86Box A hypervisor and IBM PC system emulator that specializes in
* running old operating systems and software designed for IBM
* PC systems and compatibles from 1981 through fairly recent
* system designs based on the PCI bus.
*
* This file is part of the 86Box distribution.
*
* CPU type handler.
*
*
*
* Authors: Sarah Walker,
* leilei,
* Miran Grca,
*
* Copyright 2008-2018 Sarah Walker.
* Copyright 2016-2018 leilei.
* Copyright 2016,2018 Miran Grca.
*/
#ifndef EMU_CPU_H
# define EMU_CPU_H
enum {
FPU_NONE,
FPU_8087,
FPU_287,
FPU_287XL,
FPU_387,
FPU_487SX,
FPU_INTERNAL
};
enum {
CPU_8088 = (1ULL << 0), /* 808x class CPUs */
CPU_8086 = (1ULL << 1),
#ifdef USE_NEC_808X
CPU_V20 = (1ULL << 2), /* NEC 808x class CPUs - future proofing */
CPU_V30 = (1ULL << 3),
#endif
CPU_286 = (1ULL << 4), /* 286 class CPUs */
CPU_386SX = (1ULL << 5), /* 386 class CPUs */
CPU_386DX = (1ULL << 6),
CPU_IBM386SLC = (1ULL << 7),
CPU_IBM486SLC = (1ULL << 8),
CPU_IBM486BL = (1ULL << 9),
CPU_RAPIDCAD = (1ULL << 10),
CPU_486SLC = (1ULL << 11),
CPU_486DLC = (1ULL << 12),
CPU_i486SX = (1ULL << 13), /* 486 class CPUs */
CPU_Am486SX = (1ULL << 14),
CPU_Cx486S = (1ULL << 15),
CPU_i486SX2 = (1ULL << 16),
CPU_Am486SX2 = (1ULL << 17),
CPU_i486DX = (1ULL << 18),
CPU_i486DX2 = (1ULL << 19),
CPU_Am486DX = (1ULL << 20),
CPU_Am486DX2 = (1ULL << 21),
CPU_Cx486DX = (1ULL << 22),
CPU_Cx486DX2 = (1ULL << 23),
CPU_iDX4 = (1ULL << 24),
CPU_Am486DX4 = (1ULL << 25),
CPU_Cx486DX4 = (1ULL << 26),
CPU_Am5x86 = (1ULL << 27),
CPU_Cx5x86 = (1ULL << 28),
CPU_P24T = (1ULL << 29),
CPU_WINCHIP = (1ULL << 30), /* 586 class CPUs */
CPU_WINCHIP2 = (1ULL << 31),
CPU_PENTIUM = (1ULL << 32),
CPU_PENTIUMMMX = (1ULL << 33),
CPU_Cx6x86 = (1ULL << 34),
CPU_Cx6x86MX = (1ULL << 35),
CPU_Cx6x86L = (1ULL << 36),
CPU_CxGX1 = (1ULL << 37),
CPU_K5 = (1ULL << 38),
CPU_5K86 = (1ULL << 39),
CPU_K6 = (1ULL << 40),
CPU_K6_2 = (1ULL << 41),
CPU_K6_2C = (1ULL << 42),
CPU_K6_3 = (1ULL << 43),
CPU_K6_2P = (1ULL << 44),
CPU_K6_3P = (1ULL << 45),
CPU_CYRIX3S = (1ULL << 46),
CPU_PENTIUMPRO = (1ULL << 47), /* 686 class CPUs */
CPU_PENTIUM2 = (1ULL << 48),
CPU_PENTIUM2D = (1ULL << 49)
};
enum {
CPU_PKG_8088 = (1 << 0),
CPU_PKG_8088_EUROPC = (1 << 1),
CPU_PKG_8086 = (1 << 2),
CPU_PKG_286 = (1 << 3),
CPU_PKG_386SX = (1 << 4),
CPU_PKG_386DX = (1 << 5),
CPU_PKG_M6117 = (1 << 6),
CPU_PKG_386SLC_IBM = (1 << 7),
CPU_PKG_486SLC = (1 << 8),
CPU_PKG_486SLC_IBM = (1 << 9),
CPU_PKG_486BL = (1 << 10),
CPU_PKG_486DLC = (1 << 11),
CPU_PKG_SOCKET1 = (1 << 12),
CPU_PKG_SOCKET3 = (1 << 13),
CPU_PKG_SOCKET3_PC330 = (1 << 14),
CPU_PKG_STPC = (1 << 15),
CPU_PKG_SOCKET4 = (1 << 16),
CPU_PKG_SOCKET5_7 = (1 << 17),
CPU_PKG_SOCKET8 = (1 << 18),
CPU_PKG_SLOT1 = (1 << 19),
CPU_PKG_SLOT2 = (1 << 20),
CPU_PKG_SOCKET370 = (1 << 21)
};
#define MANU_INTEL 0
#define MANU_AMD 1
#define MANU_CYRIX 2
#define MANU_IDT 3
#define MANU_NEC 4
#define CPU_SUPPORTS_DYNAREC 1
#define CPU_REQUIRES_DYNAREC 2
#define CPU_ALTERNATE_XTAL 4
#define CPU_FIXED_MULTIPLIER 8
#if (defined __amd64__ || defined _M_X64)
#define LOOKUP_INV -1LL
#else
#define LOOKUP_INV -1
#endif
typedef struct {
const char *name;
const char *internal_name;
const int type;
} FPU;
typedef struct {
const char *name;
uint64_t cpu_type;
const FPU *fpus;
int rspeed;
double multi;
uint16_t voltage;
uint32_t edx_reset;
uint32_t cpuid_model;
uint16_t cyrix_id;
uint8_t cpu_flags;
int8_t mem_read_cycles, mem_write_cycles;
int8_t cache_read_cycles, cache_write_cycles;
int8_t atclk_div;
} CPU;
typedef struct {
const uint32_t package;
const char *manufacturer;
const char *name;
const char *internal_name;
const CPU cpus[32];
} cpu_family_t;
typedef struct {
const char *family;
const int rspeed;
const double multi;
} cpu_legacy_table_t;
typedef struct {
const char *machine;
const cpu_legacy_table_t **tables;
} cpu_legacy_machine_t;
#define C_FLAG 0x0001
#define P_FLAG 0x0004
#define A_FLAG 0x0010
#define Z_FLAG 0x0040
#define N_FLAG 0x0080
#define T_FLAG 0x0100
#define I_FLAG 0x0200
#define D_FLAG 0x0400
#define V_FLAG 0x0800
#define NT_FLAG 0x4000
#define RF_FLAG 0x0001 /* in EFLAGS */
#define VM_FLAG 0x0002 /* in EFLAGS */
#define VIF_FLAG 0x0008 /* in EFLAGS */
#define VIP_FLAG 0x0010 /* in EFLAGS */
#define VID_FLAG 0x0020 /* in EFLAGS */
#define WP_FLAG 0x10000 /* in CR0 */
#define CR4_VME (1 << 0)
#define CR4_PVI (1 << 1)
#define CR4_PSE (1 << 4)
#define CR4_PAE (1 << 5)
#define CPL ((cpu_state.seg_cs.access>>5)&3)
#define IOPL ((cpu_state.flags>>12)&3)
#define IOPLp ((!(msw&1)) || (CPL<=IOPL))
typedef union {
uint32_t l;
uint16_t w;
struct {
uint8_t l,
h;
} b;
} x86reg;
typedef struct {
uint8_t access, ar_high;
int8_t checked; /*Non-zero if selector is known to be valid*/
uint16_t seg;
uint32_t base,
limit, limit_raw,
limit_low, limit_high;
} x86seg;
typedef union {
uint64_t q;
int64_t sq;
uint32_t l[2];
int32_t sl[2];
uint16_t w[4];
int16_t sw[4];
uint8_t b[8];
int8_t sb[8];
float f[2];
} MMX_REG;
typedef struct {
uint32_t tr1, tr12;
uint32_t cesr;
uint32_t fcr;
uint64_t fcr2, fcr3;
} msr_t;
typedef union {
uint32_t l;
uint16_t w;
} cr0_t;
typedef struct {
x86reg regs[8];
uint8_t tag[8];
int8_t ssegs, ismmx,
abrt, pad;
uint16_t npxs, npxc, flags, eflags,
old_npxc, new_npxc;
uint16_t MM_w4[8];
int _cycles,
flags_op, TOP;
uint32_t flags_res,
flags_op1, flags_op2,
pc, oldpc, eaaddr, op32;
cr0_t CR0;
x86seg *ea_seg;
union {
struct {
int8_t rm,
mod,
reg;
} rm_mod_reg;
int32_t rm_mod_reg_data;
} rm_data;
double ST[8];
MMX_REG MM[8];
#ifdef USE_NEW_DYNAREC
uint32_t old_fp_control, new_fp_control;
#if defined i386 || defined __i386 || defined __i386__ || defined _X86_ || defined _M_IX86
uint16_t old_fp_control2, new_fp_control2;
#endif
#if defined i386 || defined __i386 || defined __i386__ || defined _X86_ || defined _M_IX86 || defined __amd64__ || defined _M_X64
uint32_t trunc_fp_control;
#endif
#endif
x86seg seg_cs, seg_ds, seg_es, seg_ss,
seg_fs, seg_gs;
} cpu_state_t;
/*The cpu_state.flags below must match in both cpu_cur_status and block->status for a block
to be valid*/
#define CPU_STATUS_USE32 (1 << 0)
#define CPU_STATUS_STACK32 (1 << 1)
#define CPU_STATUS_PMODE (1 << 2)
#define CPU_STATUS_V86 (1 << 3)
#define CPU_STATUS_SMM (1 << 4)
#define CPU_STATUS_FLAGS 0xffff
/*If the cpu_state.flags below are set in cpu_cur_status, they must be set in block->status.
Otherwise they are ignored*/
#ifdef USE_NEW_DYNAREC
#define CPU_STATUS_NOTFLATDS (1 << 8)
#define CPU_STATUS_NOTFLATSS (1 << 9)
#define CPU_STATUS_MASK 0xff00
#else
#define CPU_STATUS_NOTFLATDS (1 << 16)
#define CPU_STATUS_NOTFLATSS (1 << 17)
#define CPU_STATUS_MASK 0xffff0000
#endif
#ifdef _MSC_VER
# define COMPILE_TIME_ASSERT(expr) /*nada*/
#else
# ifdef EXTREME_DEBUG
# define COMPILE_TIME_ASSERT(expr) typedef char COMP_TIME_ASSERT[(expr) ? 1 : 0];
# else
# define COMPILE_TIME_ASSERT(expr) /*nada*/
# endif
#endif
COMPILE_TIME_ASSERT(sizeof(cpu_state_t) <= 128)
#define cpu_state_offset(MEMBER) ((uint8_t)((uintptr_t)&cpu_state.MEMBER - (uintptr_t)&cpu_state - 128))
#define EAX cpu_state.regs[0].l
#define AX cpu_state.regs[0].w
#define AL cpu_state.regs[0].b.l
#define AH cpu_state.regs[0].b.h
#define ECX cpu_state.regs[1].l
#define CX cpu_state.regs[1].w
#define CL cpu_state.regs[1].b.l
#define CH cpu_state.regs[1].b.h
#define EDX cpu_state.regs[2].l
#define DX cpu_state.regs[2].w
#define DL cpu_state.regs[2].b.l
#define DH cpu_state.regs[2].b.h
#define EBX cpu_state.regs[3].l
#define BX cpu_state.regs[3].w
#define BL cpu_state.regs[3].b.l
#define BH cpu_state.regs[3].b.h
#define ESP cpu_state.regs[4].l
#define EBP cpu_state.regs[5].l
#define ESI cpu_state.regs[6].l
#define EDI cpu_state.regs[7].l
#define SP cpu_state.regs[4].w
#define BP cpu_state.regs[5].w
#define SI cpu_state.regs[6].w
#define DI cpu_state.regs[7].w
#define cycles cpu_state._cycles
#define cpu_rm cpu_state.rm_data.rm_mod_reg.rm
#define cpu_mod cpu_state.rm_data.rm_mod_reg.mod
#define cpu_reg cpu_state.rm_data.rm_mod_reg.reg
#define CR4_TSD (1 << 2)
#define CR4_DE (1 << 3)
#define CR4_MCE (1 << 6)
#define CR4_PCE (1 << 8)
#define CR4_OSFXSR (1 << 9)
/* Global variables. */
extern const cpu_family_t cpu_families[];
extern const cpu_legacy_machine_t cpu_legacy_table[];
extern cpu_family_t *cpu_f;
extern CPU *cpu_s;
extern int cpu_override;
extern int cpu_isintel;
extern int cpu_iscyrix;
extern int cpu_16bitbus, cpu_64bitbus;
extern int cpu_busspeed, cpu_pci_speed;
extern int cpu_multi;
extern double cpu_dmulti;
extern double fpu_multi;
extern int cpu_cyrix_alignment; /*Cyrix 5x86/6x86 only has data misalignment
penalties when crossing 8-byte boundaries*/
extern int is8086, is286, is386, is486, is486sx, is486dx, is486sx2, is486dx2, isdx4;
extern int is_am486, is_pentium, is_k5, is_k6, is_p6, is_cx6x86;
extern int hascache;
extern int isibm486;
extern int is_rapidcad;
extern int hasfpu;
#define CPU_FEATURE_RDTSC (1 << 0)
#define CPU_FEATURE_MSR (1 << 1)
#define CPU_FEATURE_MMX (1 << 2)
#define CPU_FEATURE_CR4 (1 << 3)
#define CPU_FEATURE_VME (1 << 4)
#define CPU_FEATURE_CX8 (1 << 5)
#define CPU_FEATURE_3DNOW (1 << 6)
extern uint32_t cpu_features;
extern int in_smm, smi_line, smi_latched, smm_in_hlt;
extern int smi_block;
extern uint32_t smbase;
#ifdef USE_NEW_DYNAREC
extern uint16_t cpu_cur_status;
#else
extern uint32_t cpu_cur_status;
#endif
extern uint64_t cpu_CR4_mask;
extern uint64_t tsc;
extern msr_t msr;
extern cpu_state_t cpu_state;
extern uint8_t opcode;
extern int cgate16;
extern int cpl_override;
extern int CPUID;
extern uint64_t xt_cpu_multi;
extern int isa_cycles;
extern uint32_t oldds,oldss,olddslimit,oldsslimit,olddslimitw,oldsslimitw;
extern uint32_t pccache;
extern uint8_t *pccache2;
extern double bus_timing, pci_timing;
extern uint64_t pmc[2];
extern uint16_t temp_seg_data[4];
extern uint16_t cs_msr;
extern uint32_t esp_msr;
extern uint32_t eip_msr;
/* For the AMD K6. */
extern uint64_t amd_efer, star;
#define FPU_CW_Reserved_Bits (0xe0c0)
#define cr0 cpu_state.CR0.l
#define msw cpu_state.CR0.w
extern uint32_t cr2, cr3, cr4;
extern uint32_t dr[8];
/*Segments -
_cs,_ds,_es,_ss are the segment structures
CS,DS,ES,SS is the 16-bit data
cs,ds,es,ss are defines to the bases*/
extern x86seg gdt,ldt,idt,tr;
extern x86seg _oldds;
#define CS cpu_state.seg_cs.seg
#define DS cpu_state.seg_ds.seg
#define ES cpu_state.seg_es.seg
#define SS cpu_state.seg_ss.seg
#define FS cpu_state.seg_fs.seg
#define GS cpu_state.seg_gs.seg
#define cs cpu_state.seg_cs.base
#define ds cpu_state.seg_ds.base
#define es cpu_state.seg_es.base
#define ss cpu_state.seg_ss.base
#define fs_seg cpu_state.seg_fs.base
#define gs cpu_state.seg_gs.base
#define ISA_CYCLES(x) (x * isa_cycles)
extern int cpu_cycles_read, cpu_cycles_read_l, cpu_cycles_write, cpu_cycles_write_l;
extern int cpu_prefetch_cycles, cpu_prefetch_width, cpu_mem_prefetch_cycles, cpu_rom_prefetch_cycles;
extern int cpu_waitstates;
extern int cpu_cache_int_enabled, cpu_cache_ext_enabled;
extern int cpu_pci_speed;
extern int timing_rr;
extern int timing_mr, timing_mrl;
extern int timing_rm, timing_rml;
extern int timing_mm, timing_mml;
extern int timing_bt, timing_bnt;
extern int timing_int, timing_int_rm, timing_int_v86, timing_int_pm;
extern int timing_int_pm_outer, timing_iret_rm, timing_iret_v86, timing_iret_pm;
extern int timing_iret_pm_outer, timing_call_rm, timing_call_pm;
extern int timing_call_pm_gate, timing_call_pm_gate_inner;
extern int timing_retf_rm, timing_retf_pm, timing_retf_pm_outer;
extern int timing_jmp_rm, timing_jmp_pm, timing_jmp_pm_gate;
extern int timing_misaligned;
extern int in_sys, unmask_a20_in_smm;
extern int cycles_main;
extern uint32_t old_rammask;
#ifdef USE_ACYCS
extern int acycs;
#endif
extern int pic_pending, is_vpc;
extern int soft_reset_mask, alt_access;
extern int cpu_end_block_after_ins;
extern uint16_t cpu_fast_off_count, cpu_fast_off_val;
extern uint32_t cpu_fast_off_flags;
/* Functions. */
extern int cpu_has_feature(int feature);
#ifdef USE_NEW_DYNAREC
extern void loadseg_dynarec(uint16_t seg, x86seg *s);
extern int loadseg(uint16_t seg, x86seg *s);
extern void loadcs(uint16_t seg);
#else
extern void loadseg(uint16_t seg, x86seg *s);
extern void loadcs(uint16_t seg);
#endif
extern char *cpu_current_pc(char *bufp);
extern void cpu_update_waitstates(void);
extern void cpu_set(void);
extern void cpu_CPUID(void);
extern void cpu_RDMSR(void);
extern void cpu_WRMSR(void);
extern int checkio(int port);
extern void codegen_block_end(void);
extern void codegen_reset(void);
extern void cpu_set_edx(void);
extern int divl(uint32_t val);
extern void execx86(int cycs);
extern void enter_smm(int in_hlt);
extern void enter_smm_check(int in_hlt);
extern void leave_smm(void);
extern void exec386(int cycs);
extern void exec386_dynarec(int cycs);
extern int idivl(int32_t val);
#ifdef USE_NEW_DYNAREC
extern void loadcscall(uint16_t seg, uint32_t old_pc);
extern void loadcsjmp(uint16_t seg, uint32_t old_pc);
extern void pmodeint(int num, int soft);
extern void pmoderetf(int is32, uint16_t off);
extern void pmodeiret(int is32);
#else
extern void loadcscall(uint16_t seg);
extern void loadcsjmp(uint16_t seg, uint32_t old_pc);
extern void pmodeint(int num, int soft);
extern void pmoderetf(int is32, uint16_t off);
extern void pmodeiret(int is32);
#endif
extern void resetmcr(void);
extern void resetx86(void);
extern void refreshread(void);
extern void resetreadlookup(void);
extern void softresetx86(void);
extern void x86_int(int num);
extern void x86_int_sw(int num);
extern int x86_int_sw_rm(int num);
extern void x86gpf(char *s, uint16_t error);
extern void x86np(char *s, uint16_t error);
extern void x86ss(char *s, uint16_t error);
extern void x86ts(char *s, uint16_t error);
#ifdef ENABLE_808X_LOG
extern void dumpregs(int __force);
extern void x87_dumpregs(void);
extern void x87_reset(void);
#endif
extern int cpu_effective, cpu_alt_reset;
extern void cpu_dynamic_switch(int new_cpu);
extern void cpu_ven_reset(void);
extern void update_tsc(void);
extern int sysenter(uint32_t fetchdat);
extern int sysexit(uint32_t fetchdat);
extern int syscall(uint32_t fetchdat);
extern int sysret(uint32_t fetchdat);
extern cpu_family_t *cpu_get_family(const char *internal_name);
extern uint8_t cpu_is_eligible(const cpu_family_t *cpu_family, int cpu, int machine);
extern uint8_t cpu_family_is_eligible(const cpu_family_t *cpu_family, int machine);
extern int fpu_get_type(const cpu_family_t *cpu_family, int cpu, const char *internal_name);
extern const char *fpu_get_internal_name(const cpu_family_t *cpu_family, int cpu, int type);
extern const char *fpu_get_name_from_index(const cpu_family_t *cpu_family, int cpu, int c);
extern int fpu_get_type_from_index(const cpu_family_t *cpu_family, int cpu, int c);
void cyrix_load_seg_descriptor(uint32_t addr, x86seg *seg);
void cyrix_write_seg_descriptor(uint32_t addr, x86seg *seg);
#define SMHR_VALID (1 << 0)
#define SMHR_ADDR_MASK (0xfffffffc)
typedef struct
{
struct
{
uint32_t base;
uint64_t size;
} arr[8];
uint32_t smhr;
} cyrix_t;
extern cyrix_t cyrix;
#endif /*EMU_CPU_H*/