From 6523585c66c04cea54df50013df8886b589847d8 Mon Sep 17 00:00:00 2001
From: David Walter Seikel
Date: Mon, 23 Jan 2012 23:36:30 +1000
Subject: Add luaproc and LuaJIT libraries.

Two versions of LuaJIT, the stable release, and the dev version.  Try the dev version first, until ih fails badly.
---
 libraries/luajit-2.0/src/lib_bit.c | 74 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100644 libraries/luajit-2.0/src/lib_bit.c

(limited to 'libraries/luajit-2.0/src/lib_bit.c')

diff --git a/libraries/luajit-2.0/src/lib_bit.c b/libraries/luajit-2.0/src/lib_bit.c
new file mode 100644
index 0000000..c6c5c6f
--- /dev/null
+++ b/libraries/luajit-2.0/src/lib_bit.c
@@ -0,0 +1,74 @@
+/*
+** Bit manipulation library.
+** Copyright (C) 2005-2011 Mike Pall. See Copyright Notice in luajit.h
+*/
+
+#define lib_bit_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+#include "lj_err.h"
+#include "lj_str.h"
+#include "lj_lib.h"
+
+/* ------------------------------------------------------------------------ */
+
+#define LJLIB_MODULE_bit
+
+LJLIB_ASM(bit_tobit)		LJLIB_REC(bit_unary IR_TOBIT)
+{
+  lj_lib_checknumber(L, 1);
+  return FFH_RETRY;
+}
+LJLIB_ASM_(bit_bnot)		LJLIB_REC(bit_unary IR_BNOT)
+LJLIB_ASM_(bit_bswap)		LJLIB_REC(bit_unary IR_BSWAP)
+
+LJLIB_ASM(bit_lshift)		LJLIB_REC(bit_shift IR_BSHL)
+{
+  lj_lib_checknumber(L, 1);
+  lj_lib_checkbit(L, 2);
+  return FFH_RETRY;
+}
+LJLIB_ASM_(bit_rshift)		LJLIB_REC(bit_shift IR_BSHR)
+LJLIB_ASM_(bit_arshift)		LJLIB_REC(bit_shift IR_BSAR)
+LJLIB_ASM_(bit_rol)		LJLIB_REC(bit_shift IR_BROL)
+LJLIB_ASM_(bit_ror)		LJLIB_REC(bit_shift IR_BROR)
+
+LJLIB_ASM(bit_band)		LJLIB_REC(bit_nary IR_BAND)
+{
+  int i = 0;
+  do { lj_lib_checknumber(L, ++i); } while (L->base+i < L->top);
+  return FFH_RETRY;
+}
+LJLIB_ASM_(bit_bor)		LJLIB_REC(bit_nary IR_BOR)
+LJLIB_ASM_(bit_bxor)		LJLIB_REC(bit_nary IR_BXOR)
+
+/* ------------------------------------------------------------------------ */
+
+LJLIB_CF(bit_tohex)
+{
+  uint32_t b = (uint32_t)lj_lib_checkbit(L, 1);
+  int32_t i, n = L->base+1 >= L->top ? 8 : lj_lib_checkbit(L, 2);
+  const char *hexdigits = "0123456789abcdef";
+  char buf[8];
+  if (n < 0) { n = -n; hexdigits = "0123456789ABCDEF"; }
+  if (n > 8) n = 8;
+  for (i = n; --i >= 0; ) { buf[i] = hexdigits[b & 15]; b >>= 4; }
+  lua_pushlstring(L, buf, (size_t)n);
+  return 1;
+}
+
+/* ------------------------------------------------------------------------ */
+
+#include "lj_libdef.h"
+
+LUALIB_API int luaopen_bit(lua_State *L)
+{
+  LJ_LIB_REG(L, LUA_BITLIBNAME, bit);
+  return 1;
+}
+
-- 
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