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#include <fstream>
#include <iostream>
#include <string>
#include <vector>
#include "bytecode.hpp"
namespace SpasmImpl
{
namespace ASM
{
Bytecode_Stream::~Bytecode_Stream() {}
Bytecode_File::Bytecode_File(const std::string& filename)
: _bytecode(filename.c_str(), std::ios_base::out | std::ios_base::binary)
{
}
void Bytecode_File::push_byte(Bytecode_Stream::byte byte)
{
_bytecode.put(byte);
}
void Bytecode_File::push_opcode(Bytecode_Stream::Opcode_t opcode)
{
push_byte(opcode);
}
union DoubleToBits {
double as_double;
int64_t as_bits;
};
int64_t to_bits(double d)
{
DoubleToBits v;
v.as_double = d;
return v.as_bits;
};
void Bytecode_File::push_integer(int64_t number, int size)
{
for (int i = 0; i < size; ++i)
push_byte((number >> (i << 3)) & 0xff);
}
void Bytecode_File::push_double(double number)
{
auto bits = to_bits(number);
for (size_t i = 0; i < sizeof(size_t); ++i)
push_byte((bits >> (i << 3)) & 0xff);
}
void Bytecode_Memory::push_byte(Bytecode_Stream::byte byte)
{
_bytecode.push_back(byte);
}
void Bytecode_Memory::push_opcode(Bytecode_Stream::Opcode_t opcode)
{
push_byte(opcode);
}
void Bytecode_Memory::push_integer(int64_t number, int size)
{
for (int i = 0; i < size; ++i)
push_byte((number >> (i << 3)) & 0xff);
}
void Bytecode_Memory::push_double(double number)
{
auto bits = to_bits(number);
for (size_t i = 0; i < sizeof(size_t); ++i)
push_byte((bits >> (i << 3)) & 0xff);
}
void Bytecode_Memory::set_location(size_t index, size_t location)
{
if (location <= 0xff)
{
_bytecode[index] = (byte)location;
}
else
{
for (size_t i = 0; i < sizeof(size_t); ++i)
_bytecode.at(index + i) = ((location >> (i << 3)) & 0xff);
}
}
void Bytecode_Memory::push_location(size_t location)
{
if (location <= 0xff)
{
push_byte((byte)location);
}
else
{
for (size_t i = 0; i < sizeof(size_t); ++i)
_bytecode.push_back((location >> (i << 3)) & 0xff);
}
}
const Bytecode_Memory::Bytecode& Bytecode_Memory::bytecode() const
{
return _bytecode;
}
size_t Bytecode_Memory::size() const
{
return _bytecode.size();
}
} // namespace ASM
} // namespace SpasmImpl
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