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annotate third_party/luajit/src/lj_vm.h @ 194:fb28063dc490 hg-web

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Adding few more images.
author MrJuneJune <me@mrjunejune.com>
date Sun, 25 Jan 2026 20:19:42 -0800
parents 94705b5986b3
children
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178
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1 /*
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2 ** Assembler VM interface definitions.
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3 ** Copyright (C) 2005-2023 Mike Pall. See Copyright Notice in luajit.h
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4 */
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5
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6 #ifndef _LJ_VM_H
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7 #define _LJ_VM_H
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8
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9 #include "lj_obj.h"
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10
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11 /* Entry points for ASM parts of VM. */
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12 LJ_ASMF void lj_vm_call(lua_State *L, TValue *base, int nres1);
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13 LJ_ASMF int lj_vm_pcall(lua_State *L, TValue *base, int nres1, ptrdiff_t ef);
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14 typedef TValue *(*lua_CPFunction)(lua_State *L, lua_CFunction func, void *ud);
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15 LJ_ASMF int lj_vm_cpcall(lua_State *L, lua_CFunction func, void *ud,
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16 lua_CPFunction cp);
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17 LJ_ASMF int lj_vm_resume(lua_State *L, TValue *base, int nres1, ptrdiff_t ef);
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18 LJ_ASMF_NORET void LJ_FASTCALL lj_vm_unwind_c(void *cframe, int errcode);
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19 LJ_ASMF_NORET void LJ_FASTCALL lj_vm_unwind_ff(void *cframe);
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20 #if LJ_ABI_WIN && LJ_TARGET_X86
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21 LJ_ASMF_NORET void LJ_FASTCALL lj_vm_rtlunwind(void *cframe, void *excptrec,
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22 void *unwinder, int errcode);
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23 #endif
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24 LJ_ASMF void lj_vm_unwind_c_eh(void);
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25 LJ_ASMF void lj_vm_unwind_ff_eh(void);
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26 #if LJ_TARGET_X86ORX64
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27 LJ_ASMF void lj_vm_unwind_rethrow(void);
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28 #endif
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29 #if LJ_TARGET_MIPS
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30 LJ_ASMF void lj_vm_unwind_stub(void);
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31 #endif
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32
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33 /* Miscellaneous functions. */
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34 #if LJ_TARGET_X86ORX64
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35 LJ_ASMF int lj_vm_cpuid(uint32_t f, uint32_t res[4]);
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36 #endif
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37 #if LJ_TARGET_PPC
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38 void lj_vm_cachesync(void *start, void *end);
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39 #endif
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40 LJ_ASMF double lj_vm_foldarith(double x, double y, int op);
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41 #if LJ_HASJIT
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42 LJ_ASMF double lj_vm_foldfpm(double x, int op);
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43 #endif
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44 #if !LJ_ARCH_HASFPU
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45 /* Declared in lj_obj.h: LJ_ASMF int32_t lj_vm_tobit(double x); */
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46 #endif
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47
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48 /* Dispatch targets for recording and hooks. */
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49 LJ_ASMF void lj_vm_record(void);
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50 LJ_ASMF void lj_vm_inshook(void);
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51 LJ_ASMF void lj_vm_rethook(void);
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52 LJ_ASMF void lj_vm_callhook(void);
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53 LJ_ASMF void lj_vm_profhook(void);
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54 LJ_ASMF void lj_vm_IITERN(void);
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55
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56 /* Trace exit handling. */
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57 LJ_ASMF char lj_vm_exit_handler[];
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58 LJ_ASMF char lj_vm_exit_interp[];
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59
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60 /* Internal math helper functions. */
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61 #if LJ_TARGET_PPC || LJ_TARGET_ARM64 || (LJ_TARGET_MIPS && LJ_ABI_SOFTFP)
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62 #define lj_vm_floor floor
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63 #define lj_vm_ceil ceil
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64 #else
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65 LJ_ASMF double lj_vm_floor(double);
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66 LJ_ASMF double lj_vm_ceil(double);
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67 #if LJ_TARGET_ARM
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68 LJ_ASMF double lj_vm_floor_sf(double);
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69 LJ_ASMF double lj_vm_ceil_sf(double);
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70 #endif
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71 #endif
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72 #ifdef LUAJIT_NO_LOG2
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73 LJ_ASMF double lj_vm_log2(double);
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74 #else
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75 #define lj_vm_log2 log2
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76 #endif
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77 #if !(defined(_LJ_DISPATCH_H) && LJ_TARGET_MIPS)
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78 LJ_ASMF int32_t LJ_FASTCALL lj_vm_modi(int32_t, int32_t);
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79 #endif
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80
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81 #if LJ_HASJIT
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82 #if LJ_TARGET_X86ORX64
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83 LJ_ASMF void lj_vm_floor_sse(void);
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84 LJ_ASMF void lj_vm_ceil_sse(void);
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85 LJ_ASMF void lj_vm_trunc_sse(void);
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86 #endif
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87 #if LJ_TARGET_PPC || LJ_TARGET_ARM64
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88 #define lj_vm_trunc trunc
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89 #else
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90 LJ_ASMF double lj_vm_trunc(double);
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91 #if LJ_TARGET_ARM
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92 LJ_ASMF double lj_vm_trunc_sf(double);
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93 #endif
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94 #endif
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95 #if LJ_HASFFI
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96 LJ_ASMF int lj_vm_errno(void);
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97 #endif
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98 LJ_ASMF TValue *lj_vm_next(GCtab *t, uint32_t idx);
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99 #endif
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100
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101 /* Continuations for metamethods. */
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102 LJ_ASMF void lj_cont_cat(void); /* Continue with concatenation. */
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103 LJ_ASMF void lj_cont_ra(void); /* Store result in RA from instruction. */
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104 LJ_ASMF void lj_cont_nop(void); /* Do nothing, just continue execution. */
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105 LJ_ASMF void lj_cont_condt(void); /* Branch if result is true. */
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106 LJ_ASMF void lj_cont_condf(void); /* Branch if result is false. */
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107 LJ_ASMF void lj_cont_hook(void); /* Continue from hook yield. */
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108 LJ_ASMF void lj_cont_stitch(void); /* Trace stitching. */
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109
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110 /* Start of the ASM code. */
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111 LJ_ASMF char lj_vm_asm_begin[];
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112
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113 /* Bytecode offsets are relative to lj_vm_asm_begin. */
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114 #define makeasmfunc(ofs) lj_ptr_sign((ASMFunction)(lj_vm_asm_begin + (ofs)), 0)
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115
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116 #endif