More CPU sanitisation.
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SarahW
parent
2554952658
commit
03b5a44aca
14 changed files with 248 additions and 252 deletions
214
src/ibm.h
214
src/ibm.h
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@ -63,221 +63,9 @@ extern int readlnum,writelnum;
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/*Processor*/
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#define EAX cpu_state.regs[0].l
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#define ECX cpu_state.regs[1].l
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#define EDX cpu_state.regs[2].l
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#define EBX cpu_state.regs[3].l
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#define ESP cpu_state.regs[4].l
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#define EBP cpu_state.regs[5].l
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#define ESI cpu_state.regs[6].l
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#define EDI cpu_state.regs[7].l
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#define AX cpu_state.regs[0].w
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#define CX cpu_state.regs[1].w
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#define DX cpu_state.regs[2].w
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#define BX cpu_state.regs[3].w
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#define SP cpu_state.regs[4].w
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#define BP cpu_state.regs[5].w
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#define SI cpu_state.regs[6].w
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#define DI cpu_state.regs[7].w
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#define AL cpu_state.regs[0].b.l
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#define AH cpu_state.regs[0].b.h
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#define CL cpu_state.regs[1].b.l
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#define CH cpu_state.regs[1].b.h
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#define DL cpu_state.regs[2].b.l
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#define DH cpu_state.regs[2].b.h
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#define BL cpu_state.regs[3].b.l
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#define BH cpu_state.regs[3].b.h
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extern int ins, output, timetolive;
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typedef union
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{
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uint32_t l;
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uint16_t w;
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struct
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{
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uint8_t l,h;
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} b;
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} x86reg;
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typedef struct
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{
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uint32_t base;
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uint32_t limit;
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uint8_t access;
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uint16_t seg;
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uint32_t limit_low, limit_high;
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int checked; /*Non-zero if selector is known to be valid*/
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} x86seg;
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typedef union MMX_REG
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{
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uint64_t q;
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int64_t sq;
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uint32_t l[2];
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int32_t sl[2];
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uint16_t w[4];
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int16_t sw[4];
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uint8_t b[8];
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int8_t sb[8];
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float f[2];
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} MMX_REG;
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struct
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{
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x86reg regs[8];
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uint8_t tag[8];
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x86seg *ea_seg;
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uint32_t eaaddr;
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int flags_op;
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uint32_t flags_res;
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uint32_t flags_op1, flags_op2;
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uint32_t pc;
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uint32_t oldpc;
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uint32_t op32;
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int TOP;
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union
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{
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struct
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{
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int8_t rm, mod, reg;
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} rm_mod_reg;
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uint32_t rm_mod_reg_data;
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} rm_data;
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int8_t ssegs;
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int8_t ismmx;
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int8_t abrt;
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int _cycles;
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int cpu_recomp_ins;
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uint16_t npxs, npxc;
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double ST[8];
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uint16_t MM_w4[8];
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MMX_REG MM[8];
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uint32_t old_fp_control, new_fp_control;
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#if defined i386 || defined __i386 || defined __i386__ || defined _X86_
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uint16_t old_fp_control2, new_fp_control2;
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#endif
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#if defined i386 || defined __i386 || defined __i386__ || defined _X86_ || defined __amd64__
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uint32_t trunc_fp_control;
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#endif
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x86seg seg_cs,seg_ds,seg_es,seg_ss,seg_fs,seg_gs;
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union
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{
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uint32_t l;
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uint16_t w;
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} CR0;
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uint16_t flags, eflags;
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} cpu_state;
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#define cycles cpu_state._cycles
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extern uint16_t cpu_cur_status;
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/*The flags below must match in both cpu_cur_status and block->status for a block
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to be valid*/
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#define CPU_STATUS_USE32 (1 << 0)
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#define CPU_STATUS_STACK32 (1 << 1)
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#define CPU_STATUS_PMODE (1 << 2)
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#define CPU_STATUS_V86 (1 << 3)
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#define CPU_STATUS_FLAGS 0xff
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/*If the flags below are set in cpu_cur_status, they must be set in block->status.
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Otherwise they are ignored*/
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#define CPU_STATUS_NOTFLATDS (1 << 8)
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#define CPU_STATUS_NOTFLATSS (1 << 9)
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#define CPU_STATUS_MASK 0xff00
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#define COMPILE_TIME_ASSERT(expr) typedef char COMP_TIME_ASSERT[(expr) ? 1 : 0];
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COMPILE_TIME_ASSERT(sizeof(cpu_state) <= 128);
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#define cpu_state_offset(MEMBER) ((uintptr_t)&cpu_state.MEMBER - (uintptr_t)&cpu_state - 128)
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uint32_t oldds,oldss,olddslimit,oldsslimit,olddslimitw,oldsslimitw;
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extern int ins,output;
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x86seg gdt,ldt,idt,tr;
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x86seg _oldds;
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uint32_t pccache;
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uint8_t *pccache2;
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/*Segments -
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_cs,_ds,_es,_ss are the segment structures
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CS,DS,ES,SS is the 16-bit data
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cs,ds,es,ss are defines to the bases*/
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#define CS cpu_state.seg_cs.seg
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#define DS cpu_state.seg_ds.seg
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#define ES cpu_state.seg_es.seg
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#define SS cpu_state.seg_ss.seg
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#define FS cpu_state.seg_fs.seg
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#define GS cpu_state.seg_gs.seg
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#define cs cpu_state.seg_cs.base
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#define ds cpu_state.seg_ds.base
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#define es cpu_state.seg_es.base
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#define ss cpu_state.seg_ss.base
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//#define seg_fs _fs.base
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#define gs cpu_state.seg_gs.base
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#define CPL ((cpu_state.seg_cs.access>>5)&3)
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int loadseg(uint16_t seg, x86seg *s);
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void loadcs(uint16_t seg);
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#define cr0 cpu_state.CR0.l
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#define msw cpu_state.CR0.w
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uint32_t cr2, cr3, cr4;
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uint32_t dr[8];
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#define C_FLAG 0x0001
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#define P_FLAG 0x0004
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#define A_FLAG 0x0010
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#define Z_FLAG 0x0040
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#define N_FLAG 0x0080
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#define T_FLAG 0x0100
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#define I_FLAG 0x0200
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#define D_FLAG 0x0400
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#define V_FLAG 0x0800
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#define NT_FLAG 0x4000
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#define VM_FLAG 0x0002 /*In EFLAGS*/
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#define VIF_FLAG 0x0008 /*In EFLAGS*/
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#define VIP_FLAG 0x0010 /*In EFLAGS*/
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#define WP_FLAG 0x10000 /*In CR0*/
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#define CR4_VME (1 << 0)
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#define CR4_PVI (1 << 1)
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#define CR4_PSE (1 << 4)
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#define IOPL ((cpu_state.flags >> 12) & 3)
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#define IOPLp ((!(msw&1)) || (CPL<=IOPL))
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//#define IOPLp 1
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//#define IOPLV86 ((!(msw&1)) || (CPL<=IOPL))
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extern int cycles_lost;
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extern int is486;
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extern int insc;
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extern int fpucount;
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extern float mips,flops;
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extern int cgate16;
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extern int CPUID;
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extern int cpl_override;
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/*Timer*/
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typedef struct PIT_nr
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