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Roberto Ierusalimschy 2017-11-30 11:16:43 -02:00
parent 19c6b375c3
commit bdc751ce23
1 changed files with 10 additions and 5 deletions
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lopcodes.h
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@ -1,5 +1,5 @@
/* /*
** $Id: lopcodes.h,v 1.173 2017/11/29 16:57:36 roberto Exp roberto $ ** $Id: lopcodes.h,v 1.174 2017/11/30 12:03:00 roberto Exp roberto $
** Opcodes for Lua virtual machine ** Opcodes for Lua virtual machine
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -289,8 +289,8 @@ OP_EXTRAARG/* Ax extra (larger) argument for previous opcode */
(*) In OP_RETURN, if (B == 0) then return up to 'top'. (*) In OP_RETURN, if (B == 0) then return up to 'top'.
(*) In OP_SETLIST, if (B == 0) then B = 'top'; if (C == 0) then next (*) In OP_SETLIST, if (B == 0) then real B = 'top'; if (C == 0) then
'instruction' is EXTRAARG(real C). next 'instruction' is EXTRAARG(real C).
(*) In OP_LOADKX, the next 'instruction' is always EXTRAARG. (*) In OP_LOADKX, the next 'instruction' is always EXTRAARG.
@ -298,11 +298,16 @@ OP_EXTRAARG/* Ax extra (larger) argument for previous opcode */
(true or false). (true or false).
(*) For OP_LTI/OP_LEI, C indicates that the transformations (*) For OP_LTI/OP_LEI, C indicates that the transformations
(A<B) => (!(B<=A)) or (A<=B) => (!(B<A)) were used to put the (A<B) => (!(B<=A)) or (A<=B) => (!(B<A)) were used to put the constant
constant operator on the right side. operator on the right side. (Non-total orders with NaN or metamethods
use this indication to correct their behavior.)
(*) All 'skips' (pc++) assume that next instruction is a jump. (*) All 'skips' (pc++) assume that next instruction is a jump.
(*) In instructions ending a function (OP_RETURN*, OP_TAILCALL), k
specifies that the function builds upvalues, which may need to be
closed.
===========================================================================*/ ===========================================================================*/