2 ** Assembler VM interface definitions.
3 ** Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
11 /* Entry points for ASM parts of VM. */
12 LJ_ASMF
void lj_vm_call(lua_State
*L
, TValue
*base
, int nres1
);
13 LJ_ASMF
int lj_vm_pcall(lua_State
*L
, TValue
*base
, int nres1
, ptrdiff_t ef
);
14 typedef TValue
*(*lua_CPFunction
)(lua_State
*L
, lua_CFunction func
, void *ud
);
15 LJ_ASMF
int lj_vm_cpcall(lua_State
*L
, lua_CFunction func
, void *ud
,
17 LJ_ASMF
int lj_vm_resume(lua_State
*L
, TValue
*base
, int nres1
, ptrdiff_t ef
);
18 LJ_ASMF_NORET
void LJ_FASTCALL
lj_vm_unwind_c(void *cframe
, int errcode
);
19 LJ_ASMF_NORET
void LJ_FASTCALL
lj_vm_unwind_ff(void *cframe
);
20 LJ_ASMF
void lj_vm_unwind_c_eh(void);
21 LJ_ASMF
void lj_vm_unwind_ff_eh(void);
22 #if LJ_TARGET_X86ORX64
23 LJ_ASMF
void lj_vm_unwind_rethrow(void);
26 /* Miscellaneous functions. */
27 #if LJ_TARGET_X86ORX64
28 LJ_ASMF
int lj_vm_cpuid(uint32_t f
, uint32_t res
[4]);
31 void lj_vm_cachesync(void *start
, void *end
);
33 LJ_ASMF
double lj_vm_foldarith(double x
, double y
, int op
);
35 LJ_ASMF
double lj_vm_foldfpm(double x
, int op
);
38 /* Declared in lj_obj.h: LJ_ASMF int32_t lj_vm_tobit(double x); */
41 /* Dispatch targets for recording and hooks. */
42 LJ_ASMF
void lj_vm_record(void);
43 LJ_ASMF
void lj_vm_inshook(void);
44 LJ_ASMF
void lj_vm_rethook(void);
45 LJ_ASMF
void lj_vm_callhook(void);
47 /* Trace exit handling. */
48 LJ_ASMF
void lj_vm_exit_handler(void);
49 LJ_ASMF
void lj_vm_exit_interp(void);
51 /* Internal math helper functions. */
52 #if LJ_TARGET_X86ORX64 || LJ_TARGET_PPC
53 #define lj_vm_floor floor
54 #define lj_vm_ceil ceil
56 LJ_ASMF
double lj_vm_floor(double);
57 LJ_ASMF
double lj_vm_ceil(double);
59 LJ_ASMF
double lj_vm_floor_sf(double);
60 LJ_ASMF
double lj_vm_ceil_sf(double);
63 #if defined(LUAJIT_NO_LOG2) || LJ_TARGET_X86ORX64
64 LJ_ASMF
double lj_vm_log2(double);
66 #define lj_vm_log2 log2
70 #if LJ_TARGET_X86ORX64
71 LJ_ASMF
void lj_vm_floor_sse(void);
72 LJ_ASMF
void lj_vm_ceil_sse(void);
73 LJ_ASMF
void lj_vm_trunc_sse(void);
74 LJ_ASMF
void lj_vm_exp_x87(void);
75 LJ_ASMF
void lj_vm_exp2_x87(void);
76 LJ_ASMF
void lj_vm_pow_sse(void);
77 LJ_ASMF
void lj_vm_powi_sse(void);
80 #define lj_vm_trunc trunc
82 LJ_ASMF
double lj_vm_trunc(double);
84 LJ_ASMF
double lj_vm_trunc_sf(double);
87 LJ_ASMF
double lj_vm_powi(double, int32_t);
89 LJ_ASMF
double lj_vm_exp2(double);
91 #define lj_vm_exp2 exp2
94 LJ_ASMF
int32_t LJ_FASTCALL
lj_vm_modi(int32_t, int32_t);
96 LJ_ASMF
int lj_vm_errno(void);
100 /* Continuations for metamethods. */
101 LJ_ASMF
void lj_cont_cat(void); /* Continue with concatenation. */
102 LJ_ASMF
void lj_cont_ra(void); /* Store result in RA from instruction. */
103 LJ_ASMF
void lj_cont_nop(void); /* Do nothing, just continue execution. */
104 LJ_ASMF
void lj_cont_condt(void); /* Branch if result is true. */
105 LJ_ASMF
void lj_cont_condf(void); /* Branch if result is false. */
106 LJ_ASMF
void lj_cont_hook(void); /* Continue from hook yield. */
108 enum { LJ_CONT_TAILCALL
, LJ_CONT_FFI_CALLBACK
}; /* Special continuations. */
110 /* Start of the ASM code. */
111 LJ_ASMF
char lj_vm_asm_begin
[];
113 /* Bytecode offsets are relative to lj_vm_asm_begin. */
114 #define makeasmfunc(ofs) ((ASMFunction)(lj_vm_asm_begin + (ofs)))