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| author | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 2001-06-11 11:56:42 -0300 |
|---|---|---|
| committer | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 2001-06-11 11:56:42 -0300 |
| commit | 0a1b1acdd36a3ed4e6f1cadf62eec8531a437cbf (patch) | |
| tree | f7c4e2b02380381e65fb19956ab7921bba33be97 /lopcodes.h | |
| parent | 79acf5ea6083fe4aebeb24740d25ddf35654944a (diff) | |
| download | lua-github-0a1b1acdd36a3ed4e6f1cadf62eec8531a437cbf.tar.gz | |
details about opcode parameters
Diffstat (limited to 'lopcodes.h')
| -rw-r--r-- | lopcodes.h | 24 |
1 files changed, 12 insertions, 12 deletions
@@ -1,5 +1,5 @@ /* -** $Id: lopcodes.h,v 1.73 2001/06/05 18:17:01 roberto Exp roberto $ +** $Id: lopcodes.h,v 1.74 2001/06/08 19:00:57 roberto Exp roberto $ ** Opcodes for Lua virtual machine ** See Copyright Notice in lua.h */ @@ -153,20 +153,20 @@ OP_CONCAT,/* A B C R(A) := R(B).. ... ..R(C) */ OP_JMP,/* sBc PC += sBc */ OP_CJMP,/* sBc if test then PC += sBc (see (1)) */ -OP_TESTEQ,/* B C test := (R(B) == R/K(C)) */ -OP_TESTNE,/* B C test := (R(B) ~= R/K(C)) */ -OP_TESTLT,/* B C test := (R(B) < R/K(C)) */ -OP_TESTLE,/* B C test := (R(B) <= R/K(C)) */ -OP_TESTGT,/* B C test := (R(B) > R/K(C)) */ -OP_TESTGE,/* B C test := (R(B) >= R/K(C)) */ +OP_TESTEQ,/* A C test := (R(A) == R/K(C)) */ +OP_TESTNE,/* A C test := (R(A) ~= R/K(C)) */ +OP_TESTLT,/* A C test := (R(A) < R/K(C)) */ +OP_TESTLE,/* A C test := (R(A) <= R/K(C)) */ +OP_TESTGT,/* A C test := (R(A) > R/K(C)) */ +OP_TESTGE,/* A C test := (R(A) >= R/K(C)) */ OP_TESTT,/* A B test := R(B); if (test) R(A) := R(B) */ OP_TESTF,/* A B test := not R(B); if (test) R(A) := nil */ OP_NILJMP,/* A R(A) := nil; PC++; */ -OP_CALL,/* A B C R(A), ... ,R(C-1) := R(A)(R(A+1), ... ,R(B-1)) */ -OP_RETURN,/* A B return R(A), ... ,R(B-1) (see (3)) */ +OP_CALL,/* A B C R(A), ... ,R(A+C-1) := R(A)(R(A+1), ... ,R(A+B))*/ +OP_RETURN,/* A B return R(A), ... ,R(A+B-1) (see (3)) */ OP_FORPREP,/* A sBc */ OP_FORLOOP,/* A sBc */ @@ -191,10 +191,10 @@ OP_CLOSURE /* A Bc R(A) := closure(KPROTO[Bc], R(A), ... ,R(A+n)) */ instructions OP_TEST* and OP_CJMP must always occur together. (2) In OP_CALL, if (B == NO_REG) then B = top. C is the number of returns, - and can be NO_REG. OP_CALL always set "top" to last_result+1, so - next open instruction (OP_CALL, OP_RETURN, OP_SETLIST) may use "top". + and can be NO_REG. OP_CALL can set `top' to last_result+1, so + next open instruction (OP_CALL, OP_RETURN, OP_SETLIST) may use `top'. - (3) In OP_RETURN, if (B == NO_REG) then B = top. + (3) In OP_RETURN, if (B == NO_REG) then return up to `top' ===========================================================================*/ |