/*************************************************
 gb/gbc mbc1 rom dump script
 last update: 20220627
*************************************************/
function cpu_dump(d, rom_size, banksize)
{
	//mmm01 code update 20200823
	//cpu_write(d, 0x2000, 0x60);//starting block, 00000
	//cpu_write(d, 0x6000, 0x00);
	//cpu_write(d, 0x4000, 0x70);
	//cpu_write(d, 0x0000, 0x40);

	if(rom_size>0x80000)
		cpu_write(d, 0x7000, 0x00);
	else
		cpu_write(d, 0x7000, 0x01);

	cpu_read (d, 0x0000, 0x4000); 
	
	//0000-1FFF 00 Disable SRAM; 0A Enable SRAM
	//2000-3FFF 5Bit ROM BANK Numbers
	//4000-5FFF RAM or ROM Upper Bits Bank Numbers
	//6000-7FFF 00 4xxx Bank ROM; 01 4xxx Bank RAM
	
	for(local i = 1; i < rom_size/0x4000; i += 1)
	{
		cpu_write(d, 0x3000, i&0x1f);
		cpu_write(d, 0x4000, i>>5);
		cpu_read (d, 0x4000, 0x4000); 
	}
}

function cpu_erase(d, rom_size, flash_chip_type)
{
	local m_29f_flash = 0;
	local m_29lv_flash = 1;
	
	//local flash_chip_type = m_29lv_flash;
	//change to m_29f_flash here, if your gb 
	//flash chip is 29f(mx29f016,amd29f016,amd29f080...)
	
	//detect chip here
	if(flash_chip_type==m_29f_flash)
	{
		cpu_write(d,0x555,0xF0);

		cpu_write(d,0x555,0xAA);
		cpu_write(d,0x2AA,0x55);
		cpu_write(d,0x555,0x80);

		cpu_write(d,0x555,0xAA);
		cpu_write(d,0x2AA,0x55);
		cpu_write(d,0x555,0x10);
	}
	else{
	//erase mx29lv320 
	cpu_write(d,0xAAA,0xF0);

	cpu_write(d,0xAAA,0xAA);
	cpu_write(d,0x555,0x55);
	cpu_write(d,0xAAA,0x80);
	cpu_write(d,0xAAA,0xAA);
	cpu_write(d,0x555,0x55);
	cpu_write(d,0xAAA,0x10);	
	}
	rom_flash_cfg(d,flash_chip_type);
}
function cpu_flash(d, rom_size, banksize)
{
	rom_write(d, 0x0000, 0x4000); 
	cpu_write(d, 0x6000, 0x00);
	for(local i = 1; i < rom_size/0x4000; i += 1)
	{
		cpu_write(d, 0x2000, i&0x1f);
		cpu_write(d, 0x4000, i>>5);
		rom_write(d, 0x4000, 0x4000); 
	}
}
function save_dump(d, save_size, max_size)
{
	cpu_write (d, 0x0000, 0x0A); 
	cpu_write (d, 0x6000, 0x01); 
	for(local i = 0; i < save_size/0x2000; i += 1)
	{
		cpu_write(d, 0x4000, i);
		cpu_read (d, 0xA000, 0x2000); 
	}
	cpu_write (d, 0x0000, 0x00); 
}
function save_erase(d, save_size, max_size)
{
	//not need here
}
function save_write(d, save_size, max_size)
{
	cpu_write (d, 0x0000, 0x0A); 
	cpu_write (d, 0x6000, 0x01); 
	for(local i = 0; i < save_size/0x2000; i += 1)
	{
		cpu_write(d, 0x4000, i);
		ram_write(d, 0xA000, 0x2000); 
	}
	cpu_write (d, 0x0000, 0x00); 
}