mirror of https://github.com/lua/lua
139 lines
3.4 KiB
C
139 lines
3.4 KiB
C
/*
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** $Id: lopcodes.h,v 1.31 1999/03/05 21:16:07 roberto Exp roberto $
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** Opcodes for Lua virtual machine
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** See Copyright Notice in lua.h
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*/
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#ifndef lopcodes_h
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#define lopcodes_h
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/*
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** NOTICE: variants of the same opcode must be consecutive: First, those
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** with word parameter, then with byte parameter.
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*/
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typedef enum {
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/* name parm before after side effect
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-----------------------------------------------------------------------------*/
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ENDCODE,/* - - (return) */
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RETCODE,/* b - (return) */
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CALL,/* b c v_c...v_1 f r_b...r_1 f(v1,...,v_c) */
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TAILCALL,/* b c v_c...v_1 f (return) f(v1,...,v_c) */
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PUSHNIL,/* b - nil_0...nil_b */
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POP,/* b a_b...a_1 - */
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PUSHNUMBERW,/* w - (float)w */
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PUSHNUMBER,/* b - (float)b */
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PUSHNUMBERNEGW,/* w - (float)-w */
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PUSHNUMBERNEG,/* b - (float)-b */
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PUSHCONSTANTW,/*w - CNST[w] */
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PUSHCONSTANT,/* b - CNST[b] */
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PUSHUPVALUE,/* b - Closure[b] */
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PUSHLOCAL,/* b - LOC[b] */
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GETGLOBALW,/* w - VAR[CNST[w]] */
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GETGLOBAL,/* b - VAR[CNST[b]] */
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GETTABLE,/* - i t t[i] */
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GETDOTTEDW,/* w t t[CNST[w]] */
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GETDOTTED,/* b t t[CNST[b]] */
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PUSHSELFW,/* w t t t[CNST[w]] */
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PUSHSELF,/* b t t t[CNST[b]] */
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CREATEARRAYW,/* w - newarray(size = w) */
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CREATEARRAY,/* b - newarray(size = b) */
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SETLOCAL,/* b x - LOC[b]=x */
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SETGLOBALW,/* w x - VAR[CNST[w]]=x */
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SETGLOBAL,/* b x - VAR[CNST[b]]=x */
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SETTABLEPOP,/* - v i t - t[i]=v */
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SETTABLE,/* b v a_b...a_1 i t a_b...a_1 i t t[i]=v */
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SETLISTW,/* w c v_c...v_1 t t t[i+w*FPF]=v_i */
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SETLIST,/* b c v_c...v_1 t t t[i+b*FPF]=v_i */
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SETMAP,/* b v_b k_b ...v_0 k_0 t t t[k_i]=v_i */
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NEQOP,/* - y x (x~=y)? 1 : nil */
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EQOP,/* - y x (x==y)? 1 : nil */
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LTOP,/* - y x (x<y)? 1 : nil */
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LEOP,/* - y x (x<y)? 1 : nil */
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GTOP,/* - y x (x>y)? 1 : nil */
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GEOP,/* - y x (x>=y)? 1 : nil */
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ADDOP,/* - y x x+y */
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SUBOP,/* - y x x-y */
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MULTOP,/* - y x x*y */
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DIVOP,/* - y x x/y */
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POWOP,/* - y x x^y */
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CONCOP,/* - y x x..y */
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MINUSOP,/* - x -x */
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NOTOP,/* - x (x==nil)? 1 : nil */
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ONTJMPW,/* w x (x!=nil)? x : - (x!=nil)? PC+=w */
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ONTJMP,/* b x (x!=nil)? x : - (x!=nil)? PC+=b */
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ONFJMPW,/* w x (x==nil)? x : - (x==nil)? PC+=w */
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ONFJMP,/* b x (x==nil)? x : - (x==nil)? PC+=b */
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JMPW,/* w - - PC+=w */
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JMP,/* b - - PC+=b */
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IFFJMPW,/* w x - (x==nil)? PC+=w */
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IFFJMP,/* b x - (x==nil)? PC+=b */
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IFTUPJMPW,/* w x - (x!=nil)? PC-=w */
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IFTUPJMP,/* b x - (x!=nil)? PC-=b */
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IFFUPJMPW,/* w x - (x==nil)? PC-=w */
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IFFUPJMP,/* b x - (x==nil)? PC-=b */
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CLOSUREW,/* w c v_c...v_1 closure(CNST[w], v_c...v_1) */
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CLOSURE,/* b c v_c...v_1 closure(CNST[b], v_c...v_1) */
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SETLINEW,/* w - - LINE=w */
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SETLINE,/* b - - LINE=b */
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LONGARGW,/* w (add w*(1<<16) to arg of next instruction) */
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LONGARG,/* b (add b*(1<<16) to arg of next instruction) */
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CHECKSTACK /* b (assert #temporaries == b; only for internal debuging!) */
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} OpCode;
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#define RFIELDS_PER_FLUSH 32 /* records (SETMAP) */
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#define LFIELDS_PER_FLUSH 64 /* FPF - lists (SETLIST) */
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#define ZEROVARARG 64
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/* maximum value of an arg of 3 bytes; must fit in an "int" */
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#if MAX_INT < (1<<24)
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#define MAX_ARG MAX_INT
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#else
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#define MAX_ARG ((1<<24)-1)
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#endif
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/* maximum value of a word of 2 bytes; cannot be bigger than MAX_ARG */
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#if MAX_ARG < (1<<16)
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#define MAX_WORD MAX_ARG
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#else
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#define MAX_WORD ((1<<16)-1)
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#endif
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/* maximum value of a byte */
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#define MAX_BYTE ((1<<8)-1)
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#endif
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