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86Box/src/x86.h

106 lines
1.9 KiB
C
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uint16_t oldcs;
extern uint32_t rmdat32;
int oldcpl;
extern int nmi_enable;
int tempc;
int cycles,output;
int firstrepcycle;
uint32_t easeg,ealimit,ealimitw;
int skipnextprint;
int inhlt;
uint8_t opcode;
int ins,noint;
uint16_t lastcs,lastpc;
int timetolive,keyboardtimer;
#define setznp168 setznp16
#define getr8(r) ((r&4)?cpu_state.regs[r&3].b.h:cpu_state.regs[r&3].b.l)
#define getr16(r) cpu_state.regs[r].w
#define getr32(r) cpu_state.regs[r].l
#define setr8(r,v) if (r&4) cpu_state.regs[r&3].b.h=v; \
else cpu_state.regs[r&3].b.l=v;
#define setr16(r,v) cpu_state.regs[r].w=v
#define setr32(r,v) cpu_state.regs[r].l=v
uint8_t znptable8[256];
uint16_t znptable16[65536];
int use32;
int stack32;
#define fetchea() { rmdat=readmemb(cs+pc); pc++; \
reg=(rmdat>>3)&7; \
mod=(rmdat>>6)&3; \
rm=rmdat&7; \
if (mod!=3) fetcheal(); }
int optype;
#define JMP 1
#define CALL 2
#define IRET 3
#define OPTYPE_INT 4
uint32_t oxpc;
extern uint16_t *mod1add[2][8];
extern uint32_t *mod1seg[8];
#define IRQTEST ((flags&I_FLAG) && (pic.pend&~pic.mask) && !noint)
extern int cgate32;
extern uint32_t *eal_r, *eal_w;
extern uint32_t flags_zn;
extern uint8_t flags_p;
#define FLAG_N (flags_zn>>31)
#define FLAG_Z (flags_zn)
#define FLAG_P (znptable8[flags_p]&P_FLAG)
extern int gpf;
enum
{
ABRT_NONE = 0,
ABRT_GEN,
ABRT_TS = 0xA,
ABRT_NP = 0xB,
ABRT_SS = 0xC,
ABRT_GPF = 0xD,
ABRT_PF = 0xE
};
extern int abrt;
extern uint32_t abrt_error;
void x86_doabrt(int x86_abrt);
extern uint8_t opcode2;
extern uint16_t rds;
extern uint32_t rmdat32;
extern int inscounts[256];
void x86illegal();
void x86seg_reset();
void x86gpf(char *s, uint16_t error);
extern uint16_t zero;
extern int x86_was_reset;