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#include "lua/luax.h"
#include "libjin/jin.h"
namespace jin
{
namespace lua
{
static int l_and(lua_State* L)
{
int a = luax_checkinteger(L, 1);
int b = luax_checkinteger(L, 2);
luax_pushinteger(L, a & b);
return 1;
}
static int l_or(lua_State* L)
{
int a = luax_checkinteger(L, 1);
int b = luax_checkinteger(L, 2);
luax_pushinteger(L, a | b);
return 1;
}
static int l_xor(lua_State* L)
{
int a = luax_checkinteger(L, 1);
int b = luax_checkinteger(L, 2);
luax_pushinteger(L, a ^ b);
return 1;
}
static int l_not(lua_State* L)
{
int n = luax_checkinteger(L, 1);
luax_pushinteger(L, ~n);
return 1;
}
static int l_lshift(lua_State* L)
{
int a = luax_checkinteger(L, 1);
int b = luax_checkinteger(L, 2);
luax_pushinteger(L, a << b);
return 1;
}
static int l_rshift(lua_State* L)
{
int a = luax_checkinteger(L, 1);
int b = luax_checkinteger(L, 2);
luax_pushinteger(L, a >> b);
return 1;
}
static int l_include(lua_State* L)
{
int a = luax_checkinteger(L, 1);
int b = luax_checkinteger(L, 2);
luax_pushboolean(L, (a & b) == b);
return 1;
}
// return buffer, size
static int l_write(lua_State* L)
{
}
static const luaL_Reg f[] = {
{ "AND", l_and },
{ "OR" , l_or },
{ "XOR", l_xor },
{ "NOT", l_not },
{ "LS", l_lshift },
{ "RS", l_rshift },
{ "INC", l_include },
{ "write", l_write},
{ 0, 0 }
};
int luaopen_bit(lua_State* L)
{
luax_newlib(L, f);
return 1;
}
}
}
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