lua 5.3.4 :
- ricompilazione per nuova versione.
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+24
-15
@@ -1,5 +1,5 @@
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/*
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** $Id: lopcodes.h,v 1.142.1.2 2014/10/20 18:32:09 roberto Exp $
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** $Id: lopcodes.h,v 1.149 2016/07/19 17:12:21 roberto Exp $
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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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@@ -14,12 +14,12 @@
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We assume that instructions are unsigned numbers.
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All instructions have an opcode in the first 6 bits.
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Instructions can have the following fields:
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`A' : 8 bits
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`B' : 9 bits
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`C' : 9 bits
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'A' : 8 bits
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'B' : 9 bits
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'C' : 9 bits
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'Ax' : 26 bits ('A', 'B', and 'C' together)
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`Bx' : 18 bits (`B' and `C' together)
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`sBx' : signed Bx
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'Bx' : 18 bits ('B' and 'C' together)
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'sBx' : signed Bx
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A signed argument is represented in excess K; that is, the number
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value is the unsigned value minus K. K is exactly the maximum value
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@@ -58,7 +58,7 @@ enum OpMode {iABC, iABx, iAsBx, iAx}; /* basic instruction format */
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*/
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#if SIZE_Bx < LUAI_BITSINT-1
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#define MAXARG_Bx ((1<<SIZE_Bx)-1)
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#define MAXARG_sBx (MAXARG_Bx>>1) /* `sBx' is signed */
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#define MAXARG_sBx (MAXARG_Bx>>1) /* 'sBx' is signed */
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#else
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#define MAXARG_Bx MAX_INT
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#define MAXARG_sBx MAX_INT
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@@ -76,10 +76,10 @@ enum OpMode {iABC, iABx, iAsBx, iAx}; /* basic instruction format */
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#define MAXARG_C ((1<<SIZE_C)-1)
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/* creates a mask with `n' 1 bits at position `p' */
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/* creates a mask with 'n' 1 bits at position 'p' */
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#define MASK1(n,p) ((~((~(Instruction)0)<<(n)))<<(p))
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/* creates a mask with `n' 0 bits at position `p' */
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/* creates a mask with 'n' 0 bits at position 'p' */
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#define MASK0(n,p) (~MASK1(n,p))
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/*
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@@ -139,7 +139,9 @@ enum OpMode {iABC, iABx, iAsBx, iAx}; /* basic instruction format */
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/* gets the index of the constant */
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#define INDEXK(r) ((int)(r) & ~BITRK)
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#if !defined(MAXINDEXRK) /* (for debugging only) */
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#define MAXINDEXRK (BITRK - 1)
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#endif
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/* code a constant index as a RK value */
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#define RKASK(x) ((x) | BITRK)
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@@ -187,10 +189,17 @@ OP_SELF,/* A B C R(A+1) := R(B); R(A) := R(B)[RK(C)] */
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OP_ADD,/* A B C R(A) := RK(B) + RK(C) */
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OP_SUB,/* A B C R(A) := RK(B) - RK(C) */
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OP_MUL,/* A B C R(A) := RK(B) * RK(C) */
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OP_DIV,/* A B C R(A) := RK(B) / RK(C) */
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OP_MOD,/* A B C R(A) := RK(B) % RK(C) */
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OP_POW,/* A B C R(A) := RK(B) ^ RK(C) */
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OP_DIV,/* A B C R(A) := RK(B) / RK(C) */
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OP_IDIV,/* A B C R(A) := RK(B) // RK(C) */
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OP_BAND,/* A B C R(A) := RK(B) & RK(C) */
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OP_BOR,/* A B C R(A) := RK(B) | RK(C) */
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OP_BXOR,/* A B C R(A) := RK(B) ~ RK(C) */
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OP_SHL,/* A B C R(A) := RK(B) << RK(C) */
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OP_SHR,/* A B C R(A) := RK(B) >> RK(C) */
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OP_UNM,/* A B R(A) := -R(B) */
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OP_BNOT,/* A B R(A) := ~R(B) */
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OP_NOT,/* A B R(A) := not R(B) */
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OP_LEN,/* A B R(A) := length of R(B) */
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@@ -231,16 +240,16 @@ OP_EXTRAARG/* Ax extra (larger) argument for previous opcode */
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/*===========================================================================
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Notes:
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(*) In OP_CALL, if (B == 0) then B = top. If (C == 0), then `top' is
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(*) In OP_CALL, if (B == 0) then B = top. If (C == 0), then 'top' is
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set to last_result+1, so next open instruction (OP_CALL, OP_RETURN,
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OP_SETLIST) may use `top'.
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OP_SETLIST) may use 'top'.
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(*) In OP_VARARG, if (B == 0) then use actual number of varargs and
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set top (like in OP_CALL with C == 0).
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(*) In OP_RETURN, if (B == 0) then return up to `top'.
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(*) In OP_RETURN, if (B == 0) then return up to 'top'.
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(*) In OP_SETLIST, if (B == 0) then B = `top'; if (C == 0) then next
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(*) In OP_SETLIST, if (B == 0) then B = 'top'; if (C == 0) then next
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'instruction' is EXTRAARG(real C).
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(*) In OP_LOADKX, the next 'instruction' is always EXTRAARG.
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@@ -248,7 +257,7 @@ OP_EXTRAARG/* Ax extra (larger) argument for previous opcode */
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(*) For comparisons, A specifies what condition the test should accept
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(true or false).
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(*) All `skips' (pc++) assume that next instruction is a jump.
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(*) All 'skips' (pc++) assume that next instruction is a jump.
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===========================================================================*/
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