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avoid the use of bit 'Bk' ('B' will lose this bit soon)

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Roberto Ierusalimschy
2017-10-01 16:13:43 -03:00
parent 722bdbe17d
commit bc1b0733b8
3 changed files with 11 additions and 14 deletions
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9
lopcodes.h
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@@ -1,5 +1,5 @@
/*
** $Id: lopcodes.h,v 1.161 2017/09/26 18:14:45 roberto Exp roberto $
** $Id: lopcodes.h,v 1.162 2017/09/28 16:53:29 roberto Exp roberto $
** Opcodes for Lua virtual machine
** See Copyright Notice in lua.h
*/
@@ -73,6 +73,7 @@ enum OpMode {iABC, iABx, iAsBx, iAx}; /* basic instruction format */
#define MAXARG_A ((1<<SIZE_A)-1)
#define MAXARG_B ((1<<SIZE_B)-1)
#define MAXARG_C ((1<<SIZE_C)-1)
#define MAXARG_Cr ((1<<(SIZE_C - 1))-1)
/* creates a mask with 'n' 1 bits at position 'p' */
@@ -102,10 +103,6 @@ enum OpMode {iABC, iABx, iAsBx, iAx}; /* basic instruction format */
#define GETARG_B(i) check_exp(checkopm(i, iABC), getarg(i, POS_B, SIZE_B))
#define SETARG_B(i,v) setarg(i, v, POS_B, SIZE_B)
#define GETARG_Br(i) \
check_exp(checkopm(i, iABC), getarg(i, POS_B, SIZE_B - 1))
#define GETARG_Bk(i) getarg(i, (POS_B + SIZE_B - 1), 1)
#define GETARG_C(i) check_exp(checkopm(i, iABC), getarg(i, POS_C, SIZE_C))
#define SETARG_C(i,v) setarg(i, v, POS_C, SIZE_C)
@@ -142,7 +139,7 @@ enum OpMode {iABC, iABx, iAsBx, iAx}; /* basic instruction format */
*/
/* this bit 1 means constant (0 means register) */
#define BITRK (1 << (SIZE_B - 1))
#define BITRK (1 << (SIZE_C - 1))
/* test whether value is a constant */
#define ISK(x) ((x) & BITRK)