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better way to cope with opcode variants

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This commit is contained in:
Roberto Ierusalimschy
1997-09-22 17:53:20 -03:00
parent 2079cfe8fa
commit d6c867ea50
3 changed files with 162 additions and 179 deletions
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31
lopcodes.h
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@@ -1,5 +1,5 @@
/*
** $Id: lopcodes.h,v 1.2 1997/09/19 18:40:32 roberto Exp roberto $
** $Id: lopcodes.h,v 1.3 1997/09/19 21:17:52 roberto Exp roberto $
** Opcodes for Lua virtual machine
** See Copyright Notice in lua.h
*/
@@ -8,6 +8,13 @@
#define lopcodes_h
/*
** NOTICE: variants of the same opcode (like PUSH0, PUSHBYTE, PUSHWORD) must
** be consecutive: First, those with built-in parameters, then with byte
** parameter and last with word parameter.
*/
typedef enum {
/* name parm before after side effect
-----------------------------------------------------------------------------*/
@@ -15,15 +22,19 @@ ENDCODE,
PUSHNIL,/* - nil */
PUSHNILS,/* b - nil_1...nil_b */
PUSH0,/* - 0.0 */
PUSH1,/* - 1.0 */
PUSH2,/* - 2.0 */
PUSHBYTE,/* b - (float)b */
PUSHWORD,/* w - (float)w */
PUSHCONSTANTB,/*b - CNST[b] */
PUSHCONSTANT,/* w - CNST[w] */
PUSHUPVALUE0,
PUSHUPVALUE,/* b - Closure[b] */
PUSHLOCAL0,/* - LOC[0] */
PUSHLOCAL1,/* - LOC[1] */
PUSHLOCAL2,/* - LOC[2] */
@@ -35,10 +46,15 @@ PUSHLOCAL7,/* - LOC[7] */
PUSHLOCAL8,/* - LOC[8] */
PUSHLOCAL9,/* - LOC[9] */
PUSHLOCAL,/* b - LOC[b] */
PUSHGLOBALB,/* b - VAR[CNST[b]] */
PUSHGLOBAL,/* w - VAR[CNST[w]] */
GETGLOBALB,/* b - VAR[CNST[b]] */
GETGLOBAL,/* w - VAR[CNST[w]] */
GETTABLE,/* i t t[i] */
PUSHSELFB,/* b t t t[CNST[b]] */
PUSHSELF,/* w t t t[CNST[w]] */
CREATEARRAY,/* w - newarray(size = w) */
SETLOCAL0,/* x - LOC[0]=x */
@@ -52,10 +68,13 @@ SETLOCAL7,/* x - LOC[7]=x */
SETLOCAL8,/* x - LOC[8]=x */
SETLOCAL9,/* x - LOC[9]=x */
SETLOCAL,/* b x - LOC[b]=x */
SETGLOBALB,/* b x - VAR[CNST[b]]=x */
SETGLOBAL,/* w x - VAR[CNST[w]]=x */
SETTABLE0,/* v i t - t[i]=v */
SETTABLE,/* b v a_b...a_1 i t a_b...a_1 i t t[i]=v */
SETLIST0,/* b v_b...v_1 t - t[i]=v_i */
SETLIST,/* b c v_b...v_1 t - t[i+c*FPF]=v_i */
SETMAP,/* b v_b k_b ...v_1 k_1 t t t[k_i]=v_i */
@@ -82,10 +101,14 @@ UPJMP,/* w - - PC-=w */
IFFJMP,/* w x - (x==nil)? PC+=w */
IFFUPJMP,/* w x - (x==nil)? PC-=w */
CLOSURE,/* f v_1...v_n c(f) */
CLOSUREB,/* b v_1...v_n c(CNST[b]) */
CLOSURE,/* w v_1...v_n c(CNST[w]) */
CALLFUNC,/* b c v_b...v_1 f r_c...r_1 f(v1,...,v_b) */
RETCODE,/* b - - */
SETLINE,/* w - - LINE=w */
POP1,/* - - TOP-=1 */
POP2,/* - - TOP-=2 */
POPS,/* b - - TOP-=b */
ARGS,/* b - - TOP=BASE+b */
VARARGS/* b v_x...v_1 {v_1...v_x;n=x} TOP=BASE+b+1 */