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author | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 2018-03-07 12:55:38 -0300 |
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committer | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 2018-03-07 12:55:38 -0300 |
commit | 4a1612ff9b968fe446bc4dd20460bfaccabeb3b3 (patch) | |
tree | aef8f8c476e0814c357ead6248a614fb0ca07eac /lopcodes.h | |
parent | 464658b16a1a539fd590e1696bfcfb572a77fe13 (diff) | |
download | lua-4a1612ff9b968fe446bc4dd20460bfaccabeb3b3.tar.gz lua-4a1612ff9b968fe446bc4dd20460bfaccabeb3b3.tar.bz2 lua-4a1612ff9b968fe446bc4dd20460bfaccabeb3b3.zip |
new experimental syntax using reserved word 'undef'
Diffstat (limited to 'lopcodes.h')
-rw-r--r-- | lopcodes.h | 5 |
1 files changed, 4 insertions, 1 deletions
@@ -1,5 +1,5 @@ | |||
1 | /* | 1 | /* |
2 | ** $Id: lopcodes.h,v 1.188 2018/02/15 15:34:29 roberto Exp roberto $ | 2 | ** $Id: lopcodes.h,v 1.189 2018/02/21 15:49:32 roberto Exp roberto $ |
3 | ** Opcodes for Lua virtual machine | 3 | ** Opcodes for Lua virtual machine |
4 | ** See Copyright Notice in lua.h | 4 | ** See Copyright Notice in lua.h |
5 | */ | 5 | */ |
@@ -266,6 +266,9 @@ OP_GEI,/* A sB if ((R(A) >= sB) ~= k) then pc++ */ | |||
266 | OP_TEST,/* A if (not R(A) == k) then pc++ */ | 266 | OP_TEST,/* A if (not R(A) == k) then pc++ */ |
267 | OP_TESTSET,/* A B if (not R(B) == k) then R(A) := R(B) else pc++ */ | 267 | OP_TESTSET,/* A B if (not R(B) == k) then R(A) := R(B) else pc++ */ |
268 | 268 | ||
269 | OP_UNDEF,/* A B R(A)[R(B)] = undef */ | ||
270 | OP_ISDEF,/* A B C R(A) = (R(B)[R(C)] == undef */ | ||
271 | |||
269 | OP_CALL,/* A B C R(A), ... ,R(A+C-2) := R(A)(R(A+1), ... ,R(A+B-1)) */ | 272 | OP_CALL,/* A B C R(A), ... ,R(A+C-2) := R(A)(R(A+1), ... ,R(A+B-1)) */ |
270 | OP_TAILCALL,/* A B C return R(A)(R(A+1), ... ,R(A+B-1)) */ | 273 | OP_TAILCALL,/* A B C return R(A)(R(A+1), ... ,R(A+B-1)) */ |
271 | 274 | ||