2 ** Assembler VM interface definitions.
3 ** Copyright (C) 2005-2023 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 #if LJ_ABI_WIN && LJ_TARGET_X86
21 LJ_ASMF_NORET
void LJ_FASTCALL
lj_vm_rtlunwind(void *cframe
, void *excptrec
,
22 void *unwinder
, int errcode
);
24 LJ_ASMF
void lj_vm_unwind_c_eh(void);
25 LJ_ASMF
void lj_vm_unwind_ff_eh(void);
26 #if LJ_TARGET_X86ORX64
27 LJ_ASMF
void lj_vm_unwind_rethrow(void);
30 LJ_ASMF
void lj_vm_unwind_stub(void);
33 /* Miscellaneous functions. */
34 #if LJ_TARGET_X86ORX64
35 LJ_ASMF
int lj_vm_cpuid(uint32_t f
, uint32_t res
[4]);
38 void lj_vm_cachesync(void *start
, void *end
);
40 LJ_ASMF
double lj_vm_foldarith(double x
, double y
, int op
);
42 LJ_ASMF
double lj_vm_foldfpm(double x
, int op
);
45 /* Declared in lj_obj.h: LJ_ASMF int32_t lj_vm_tobit(double x); */
48 /* Dispatch targets for recording and hooks. */
49 LJ_ASMF
void lj_vm_record(void);
50 LJ_ASMF
void lj_vm_inshook(void);
51 LJ_ASMF
void lj_vm_rethook(void);
52 LJ_ASMF
void lj_vm_callhook(void);
53 LJ_ASMF
void lj_vm_profhook(void);
54 LJ_ASMF
void lj_vm_IITERN(void);
56 /* Trace exit handling. */
57 LJ_ASMF
char lj_vm_exit_handler
[];
58 LJ_ASMF
char lj_vm_exit_interp
[];
60 /* Internal math helper functions. */
61 #if LJ_TARGET_PPC || LJ_TARGET_ARM64 || (LJ_TARGET_MIPS && LJ_ABI_SOFTFP)
62 #define lj_vm_floor floor
63 #define lj_vm_ceil ceil
65 LJ_ASMF
double lj_vm_floor(double);
66 LJ_ASMF
double lj_vm_ceil(double);
68 LJ_ASMF
double lj_vm_floor_sf(double);
69 LJ_ASMF
double lj_vm_ceil_sf(double);
73 LJ_ASMF
double lj_vm_log2(double);
75 #define lj_vm_log2 log2
77 #if !(defined(_LJ_DISPATCH_H) && LJ_TARGET_MIPS)
78 LJ_ASMF
int32_t LJ_FASTCALL
lj_vm_modi(int32_t, int32_t);
82 #if LJ_TARGET_X86ORX64
83 LJ_ASMF
void lj_vm_floor_sse(void);
84 LJ_ASMF
void lj_vm_ceil_sse(void);
85 LJ_ASMF
void lj_vm_trunc_sse(void);
87 #if LJ_TARGET_PPC || LJ_TARGET_ARM64
88 #define lj_vm_trunc trunc
90 LJ_ASMF
double lj_vm_trunc(double);
92 LJ_ASMF
double lj_vm_trunc_sf(double);
96 LJ_ASMF
int lj_vm_errno(void);
98 LJ_ASMF TValue
*lj_vm_next(GCtab
*t
, uint32_t idx
);
101 /* Continuations for metamethods. */
102 LJ_ASMF
void lj_cont_cat(void); /* Continue with concatenation. */
103 LJ_ASMF
void lj_cont_ra(void); /* Store result in RA from instruction. */
104 LJ_ASMF
void lj_cont_nop(void); /* Do nothing, just continue execution. */
105 LJ_ASMF
void lj_cont_condt(void); /* Branch if result is true. */
106 LJ_ASMF
void lj_cont_condf(void); /* Branch if result is false. */
107 LJ_ASMF
void lj_cont_hook(void); /* Continue from hook yield. */
108 LJ_ASMF
void lj_cont_stitch(void); /* Trace stitching. */
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) lj_ptr_sign((ASMFunction)(lj_vm_asm_begin + (ofs)), 0)