konami_vrc7.ag

/*VRC7 FLASH MEMORY WRITE
generic CPU memory bank
cpu address|rom address    |page|task
$8000-$9fff|0x02000-0x03fff|1   |write (0x2aaa & 0x1fff) + 0x8000
$a000-$bfff|0x04000-0x05fff|2   |write (0x5555 & 0x1fff) + 0xa000
$c000-$dfff|n * 0x2000     |n   |write area
$e000-$efff|末尾           |fix |boot area, 未使用*/
board <- {
	mappernum = 85, vram_mirrorfind = false, ppu_ramfind = true,
	cpu_rom = {banksize = 0x2000, size_max = 4 * mega, size_base = 1 * mega},
	cpu_ram = {banksize = 0x2000, size_max = 0x2000, size_base = 0x2000},
	ppu_rom = {banksize = 0x2000 / 8, size_max = 2 * mega, size_base = 1* mega}
};
function cpu_dump(d, pagesize, banksize)
{
	for(local i = 0; i < pagesize - 2; i += 2){
		cpu_write(d, 0x8000, i);
		cpu_write(d, 0x8018, i | 1);
		cpu_read(d, 0x8000, banksize * 2);
	}
	cpu_write(d, 0x9000, 0x3e);
	cpu_read(d, 0xc000, banksize * 2);
}

function ppu_dump(d, pagesize, banksize)
{
	cpu_write(d, 0xa000, 0);
	for(local i = 0; i < pagesize; i += 8){
		local t = i;
		for(local j = 0xa000; j < 0xe000; j += 0x1000){
			cpu_write(d, j, t++);
			cpu_write(d, j+0x18, t++);
		}
		ppu_read(d, 0, banksize * 8);
	}
}

function cpu_ram_access(d, pagesize, banksize)
{
	cpu_write(d, 0xe000, 0x80);
	cpu_ramrw(d, 0x6000, banksize);
	cpu_write(d, 0xe000, 0x00);
}

/*
this is RC851/352402 style. RV051/353429 style is not supported.
352402: Program ROM/ Charcter RAM/ Backup RAM/ R1 = A5, R0 = A4/ Extra Sound
353429: Program ROM/ Charcter ROM/ R1 = A3, R0 = ?
*/
function initalize(d, cpu_banksize, ppu_banksize)
{
	cpu_command(d, 0, 0xc000, cpu_banksize);
	cpu_command(d, 0x2aaa, 0x8000, cpu_banksize);
	cpu_command(d, 0x5555, 0xa000, cpu_banksize);
	cpu_write(d, 0x8000, 1);
	cpu_write(d, 0x8010, 2);
	cpu_write(d, 0x9000, 0);
}
function cpu_transfer(d, start, end, banksize)
{
	for(local i = start; i < end - 1; i += 1){
		cpu_write(d, 0x9000, i);
		cpu_program(d, 0xc000, banksize);
	}
	cpu_program(d, 0xe000, banksize);
}
function ppu_transfer(d, start, end, size)
{
}