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// license:BSD-3-Clause
// copyright-holders:Olivier Galibert
// Creation of Apple ProDOS floppy images
#include "emu.h"
#include "fs_prodos.h"
#include "ap_dsk35.h"
const u8 fs_prodos::impl::boot[512] = {
0x01, 0x38, 0xb0, 0x03, 0x4c, 0x1c, 0x09, 0x78, 0x86, 0x43, 0xc9, 0x03, 0x08, 0x8a, 0x29, 0x70,
0x4a, 0x4a, 0x4a, 0x4a, 0x09, 0xc0, 0x85, 0x49, 0xa0, 0xff, 0x84, 0x48, 0x28, 0xc8, 0xb1, 0x48,
0xd0, 0x3a, 0xb0, 0x0e, 0xa9, 0x03, 0x8d, 0x00, 0x08, 0xe6, 0x3d, 0xa5, 0x49, 0x48, 0xa9, 0x5b,
0x48, 0x60, 0x85, 0x40, 0x85, 0x48, 0xa0, 0x5e, 0xb1, 0x48, 0x99, 0x94, 0x09, 0xc8, 0xc0, 0xeb,
0xd0, 0xf6, 0xa2, 0x06, 0xbc, 0x32, 0x09, 0xbd, 0x39, 0x09, 0x99, 0xf2, 0x09, 0xbd, 0x40, 0x09,
0x9d, 0x7f, 0x0a, 0xca, 0x10, 0xee, 0xa9, 0x09, 0x85, 0x49, 0xa9, 0x86, 0xa0, 0x00, 0xc9, 0xf9,
0xb0, 0x2f, 0x85, 0x48, 0x84, 0x60, 0x84, 0x4a, 0x84, 0x4c, 0x84, 0x4e, 0x84, 0x47, 0xc8, 0x84,
0x42, 0xc8, 0x84, 0x46, 0xa9, 0x0c, 0x85, 0x61, 0x85, 0x4b, 0x20, 0x27, 0x09, 0xb0, 0x66, 0xe6,
0x61, 0xe6, 0x61, 0xe6, 0x46, 0xa5, 0x46, 0xc9, 0x06, 0x90, 0xef, 0xad, 0x00, 0x0c, 0x0d, 0x01,
0x0c, 0xd0, 0x52, 0xa9, 0x04, 0xd0, 0x02, 0xa5, 0x4a, 0x18, 0x6d, 0x23, 0x0c, 0xa8, 0x90, 0x0d,
0xe6, 0x4b, 0xa5, 0x4b, 0x4a, 0xb0, 0x06, 0xc9, 0x0a, 0xf0, 0x71, 0xa0, 0x04, 0x84, 0x4a, 0xad,
0x20, 0x09, 0x29, 0x0f, 0xa8, 0xb1, 0x4a, 0xd9, 0x20, 0x09, 0xd0, 0xdb, 0x88, 0x10, 0xf6, 0xa0,
0x16, 0xb1, 0x4a, 0x4a, 0x6d, 0x1f, 0x09, 0x8d, 0x1f, 0x09, 0xa0, 0x11, 0xb1, 0x4a, 0x85, 0x46,
0xc8, 0xb1, 0x4a, 0x85, 0x47, 0xa9, 0x00, 0x85, 0x4a, 0xa0, 0x1e, 0x84, 0x4b, 0x84, 0x61, 0xc8,
0x84, 0x4d, 0x20, 0x27, 0x09, 0xb0, 0x35, 0xe6, 0x61, 0xe6, 0x61, 0xa4, 0x4e, 0xe6, 0x4e, 0xb1,
0x4a, 0x85, 0x46, 0xb1, 0x4c, 0x85, 0x47, 0x11, 0x4a, 0xd0, 0x18, 0xa2, 0x01, 0xa9, 0x00, 0xa8,
0x91, 0x60, 0xc8, 0xd0, 0xfb, 0xe6, 0x61, 0xea, 0xea, 0xca, 0x10, 0xf4, 0xce, 0x1f, 0x09, 0xf0,
0x07, 0xd0, 0xd8, 0xce, 0x1f, 0x09, 0xd0, 0xca, 0x58, 0x4c, 0x00, 0x20, 0x4c, 0x47, 0x09, 0x02,
0x26, 0x50, 0x52, 0x4f, 0x44, 0x4f, 0x53, 0xa5, 0x60, 0x85, 0x44, 0xa5, 0x61, 0x85, 0x45, 0x6c,
0x48, 0x00, 0x08, 0x1e, 0x24, 0x3f, 0x45, 0x47, 0x76, 0xf4, 0xd7, 0xd1, 0xb6, 0x4b, 0xb4, 0xac,
0xa6, 0x2b, 0x18, 0x60, 0x4c, 0xbc, 0x09, 0x20, 0x58, 0xfc, 0xa0, 0x14, 0xb9, 0x58, 0x09, 0x99,
0xb1, 0x05, 0x88, 0x10, 0xf7, 0x4c, 0x55, 0x09, 0xd5, 0xce, 0xc1, 0xc2, 0xcc, 0xc5, 0xa0, 0xd4,
0xcf, 0xa0, 0xcc, 0xcf, 0xc1, 0xc4, 0xa0, 0xd0, 0xd2, 0xcf, 0xc4, 0xcf, 0xd3, 0xa5, 0x53, 0x29,
0x03, 0x2a, 0x05, 0x2b, 0xaa, 0xbd, 0x80, 0xc0, 0xa9, 0x2c, 0xa2, 0x11, 0xca, 0xd0, 0xfd, 0xe9,
0x01, 0xd0, 0xf7, 0xa6, 0x2b, 0x60, 0xa5, 0x46, 0x29, 0x07, 0xc9, 0x04, 0x29, 0x03, 0x08, 0x0a,
0x28, 0x2a, 0x85, 0x3d, 0xa5, 0x47, 0x4a, 0xa5, 0x46, 0x6a, 0x4a, 0x4a, 0x85, 0x41, 0x0a, 0x85,
0x51, 0xa5, 0x45, 0x85, 0x27, 0xa6, 0x2b, 0xbd, 0x89, 0xc0, 0x20, 0xbc, 0x09, 0xe6, 0x27, 0xe6,
0x3d, 0xe6, 0x3d, 0xb0, 0x03, 0x20, 0xbc, 0x09, 0xbc, 0x88, 0xc0, 0x60, 0xa5, 0x40, 0x0a, 0x85,
0x53, 0xa9, 0x00, 0x85, 0x54, 0xa5, 0x53, 0x85, 0x50, 0x38, 0xe5, 0x51, 0xf0, 0x14, 0xb0, 0x04,
0xe6, 0x53, 0x90, 0x02, 0xc6, 0x53, 0x38, 0x20, 0x6d, 0x09, 0xa5, 0x50, 0x18, 0x20, 0x6f, 0x09,
0xd0, 0xe3, 0xa0, 0x7f, 0x84, 0x52, 0x08, 0x28, 0x38, 0xc6, 0x52, 0xf0, 0xce, 0x18, 0x08, 0x88,
0xf0, 0xf5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
};
void fs_prodos::enumerate_f(floppy_enumerator &fe, uint32_t form_factor, const std::vector<uint32_t> &variants) const
{
if(has(form_factor, variants, floppy_image::FF_35, floppy_image::DSDD))
fe.add(this, FLOPPY_APPLE_GCR_FORMAT, 819200, "prodos_800k", "Apple ProDOS 800K");
if(has(form_factor, variants, floppy_image::FF_35, floppy_image::SSDD))
fe.add(this, FLOPPY_APPLE_GCR_FORMAT, 409600, "prodos_400k", "Apple ProDOS 400K");
}
std::unique_ptr<filesystem_t> fs_prodos::mount(fsblk_t &blockdev) const
{
return std::make_unique<impl>(blockdev);
}
bool fs_prodos::can_format() const
{
return true;
}
bool fs_prodos::can_read() const
{
return true;
}
bool fs_prodos::can_write() const
{
return false;
}
bool fs_prodos::has_rsrc() const
{
return true;
}
char fs_prodos::directory_separator() const
{
return '/';
}
std::vector<fs_meta_description> fs_prodos::volume_meta_description() const
{
std::vector<fs_meta_description> res;
res.emplace_back(fs_meta_description(fs_meta_name::name, fs_meta_type::string, "UNTITLED", false, [](const fs_meta &m) { return m.as_string().size() <= 15; }, "Volume name, up to 15 characters"));
res.emplace_back(fs_meta_description(fs_meta_name::os_version, fs_meta_type::number, 5, false, [](const fs_meta &m) { return m.as_number() <= 255; }, "Creator OS version"));
res.emplace_back(fs_meta_description(fs_meta_name::os_minimum_version, fs_meta_type::number, 5, false, [](const fs_meta &m) { return m.as_number() <= 255; }, "Minimum OS version"));
auto now = util::arbitrary_datetime::now();
res.emplace_back(fs_meta_description(fs_meta_name::creation_date, fs_meta_type::date, now, false, nullptr, "Creation time"));
res.emplace_back(fs_meta_description(fs_meta_name::modification_date, fs_meta_type::date, now, false, nullptr, "Modification time"));
return res;
}
std::vector<fs_meta_description> fs_prodos::file_meta_description() const
{
std::vector<fs_meta_description> res;
res.emplace_back(fs_meta_description(fs_meta_name::name, fs_meta_type::string, "Empty file", false, [](const fs_meta &m) { return m.as_string().size() <= 15; }, "File name, up to 15 characters"));
res.emplace_back(fs_meta_description(fs_meta_name::length, fs_meta_type::number, 0, true, nullptr, "Size of the file in bytes"));
res.emplace_back(fs_meta_description(fs_meta_name::rsrc_length, fs_meta_type::number, 0, true, nullptr, "Size of the resource fork in bytes"));
res.emplace_back(fs_meta_description(fs_meta_name::os_version, fs_meta_type::number, 5, false, [](const fs_meta &m) { return m.as_number() <= 255; }, "Creator OS version"));
res.emplace_back(fs_meta_description(fs_meta_name::os_minimum_version, fs_meta_type::number, 5, false, [](const fs_meta &m) { return m.as_number() <= 255; }, "Minimum OS version"));
auto now = util::arbitrary_datetime::now();
res.emplace_back(fs_meta_description(fs_meta_name::creation_date, fs_meta_type::date, now, false, nullptr, "Creation time"));
res.emplace_back(fs_meta_description(fs_meta_name::modification_date, fs_meta_type::date, now, false, nullptr, "Modification time"));
return res;
}
std::vector<fs_meta_description> fs_prodos::directory_meta_description() const
{
std::vector<fs_meta_description> res;
res.emplace_back(fs_meta_description(fs_meta_name::name, fs_meta_type::string, "Empty directory", false, [](const fs_meta &m) { return m.as_string().size() <= 15; }, "Directory name, up to 15 characters"));
res.emplace_back(fs_meta_description(fs_meta_name::os_version, fs_meta_type::number, 5, false, [](const fs_meta &m) { return m.as_number() <= 255; }, "Creator OS version"));
res.emplace_back(fs_meta_description(fs_meta_name::os_minimum_version, fs_meta_type::number, 5, false, [](const fs_meta &m) { return m.as_number() <= 255; }, "Minimum OS version"));
auto now = util::arbitrary_datetime::now();
res.emplace_back(fs_meta_description(fs_meta_name::creation_date, fs_meta_type::date, now, false, nullptr, "Creation time"));
res.emplace_back(fs_meta_description(fs_meta_name::modification_date, fs_meta_type::date, now, false, nullptr, "Modification time"));
return res;
}
void fs_prodos::impl::format(const fs_meta_data &meta)
{
std::string volume_name = meta.get_string(fs_meta_name::name, "UNTITLED");
u32 blocks = m_blockdev.block_count();
// Maximum usable partition size = 32M - 512 bytes (65535 blocks)
if(blocks >= 0x10000)
blocks = 0xffff;
m_blockdev.get(0).copy(0x000, boot, 0x200); // Standard ProDOS boot sector as written by a 2gs
m_blockdev.get(1).fill(0x00); // No SOS boot sector
auto kblk1 = m_blockdev.get(2); // key block first block
auto kblk2 = m_blockdev.get(3); // key block second block
auto kblk3 = m_blockdev.get(4); // key block third block
auto kblk4 = m_blockdev.get(5); // key block fourth block
kblk1.w16l(0x00, 0x0000); // Backwards key block pointer (null)
kblk1.w16l(0x02, 0x0003); // Forwards key block pointer
kblk1.w8 (0x04, 0xf0 | volume_name.size()); // Block type (f, key block) and name size
kblk1.wstr(0x05, volume_name); // Volume name, up to 15 characters
kblk1.w32b(0x16, 0x642a250d); // ??? date & time
kblk1.w16b(0x1a, 0x80ff); // ???
kblk1.w32b(0x1c, 0x642a250d); // Creation date & time
kblk1.w8 (0x20, 0x05); // ProDOS version (2gs)
kblk1.w8 (0x21, 0x00); // ProDOS minimum version
kblk1.w8 (0x22, 0xc3); // Allowed access (destroy, rename, !backup, 3x0, write read)
kblk1.w8 (0x23, 0x27); // Directory entry length (fixed)
kblk1.w8 (0x24, 0x0d); // Entries per block (fixed)
kblk1.w16l(0x25, 0x0000); // Number of file entries in the directory
kblk1.w16l(0x27, 0x0006); // Bitmap block pointer
kblk1.w16l(0x29, blocks); // Number of blocks
kblk2.w16l(0x00, 0x0002); // Backwards block pointer of the second volume block
kblk2.w16l(0x02, 0x0004); // Forwards block pointer of the second volume block
kblk3.w16l(0x00, 0x0003); // Backwards block pointer of the third volume block
kblk3.w16l(0x02, 0x0005); // Forwards block pointer of the third volume block
kblk4.w16l(0x00, 0x0004); // Backwards block pointer of the fourth volume block
kblk4.w16l(0x02, 0x0000); // Forwards block pointer of the fourth volume block (null)
u32 fmap_block_count = (blocks + 4095) / 4096;
u32 first_free_block = 6 + fmap_block_count;
// Mark blocks from first_free_block to blocks-1 (the last one) as free
for(u32 i = 0; i != fmap_block_count; i++) {
auto fmap = m_blockdev.get(6 + i);
u8 *fdata = fmap.data();
u32 start = i ? 0 : first_free_block;
u32 end = i != fmap_block_count - 1 ? 4095 : (blocks - 1) & 4095;
end += 1;
u32 sb = start >> 3;
u32 si = start & 7;
u32 eb = end >> 3;
u32 ei = end & 7;
if(sb == eb)
fdata[sb] = (0xff >> si) & ~(0xff >> ei);
else {
fdata[sb] = 0xff >> si;
if(eb != 512)
fdata[eb] = ~(0xff >> ei);
if(eb - sb > 1)
memset(fdata+sb, 0xff, eb-sb-1);
}
}
}
fs_prodos::impl::impl(fsblk_t &blockdev) : filesystem_t(blockdev, 512), m_root(true)
{
}
util::arbitrary_datetime fs_prodos::impl::prodos_to_dt(u32 date)
{
util::arbitrary_datetime dt;
dt.second = 0;
dt.minute = ((date >> 16) & 0x3f);
dt.hour = ((date >> 24) & 0x1f);
dt.day_of_month = ((date >> 0) & 0x1f);
dt.month = ((date >> 5) & 0x0f) + 1;
dt.year = ((date >> 9) & 0x7f) + 1900;
if (dt.year <= 1949)
dt.year += 100;
return dt;
}
fs_meta_data fs_prodos::impl::metadata()
{
fs_meta_data res;
auto bdir = m_blockdev.get(2);
int len = bdir.r8(0x04) & 0xf;
res.set(fs_meta_name::name, bdir.rstr(0x05, len));
res.set(fs_meta_name::os_version, bdir.r8(0x20));
res.set(fs_meta_name::os_minimum_version, bdir.r8(0x21));
res.set(fs_meta_name::creation_date, prodos_to_dt(bdir.r32l(0x1c)));
res.set(fs_meta_name::modification_date, prodos_to_dt(bdir.r32l(0x16)));
return res;
}
filesystem_t::dir_t fs_prodos::impl::root()
{
if(!m_root)
m_root = new dir(*this, 2);
return m_root.strong();
}
void fs_prodos::impl::drop_root_ref()
{
m_root = nullptr;
}
void fs_prodos::impl::dir::drop_weak_references()
{
if(m_base_block == 2)
m_fs.drop_root_ref();
}
fs_meta_data fs_prodos::impl::dir::metadata()
{
fs_meta_data res;
if(m_base_block == 2)
return res;
auto bdir = m_fs.m_blockdev.get(m_base_block);
int len = bdir.r8(0x04) & 0xf;
res.set(fs_meta_name::name, bdir.rstr(0x05, len));
res.set(fs_meta_name::os_version, bdir.r8(0x20));
res.set(fs_meta_name::os_minimum_version, bdir.r8(0x21));
res.set(fs_meta_name::creation_date, prodos_to_dt(bdir.r32l(0x1c)));
res.set(fs_meta_name::modification_date, prodos_to_dt(bdir.r32l(0x16)));
return res;
}
std::vector<fs_dir_entry> fs_prodos::impl::dir::contents()
{
std::vector<fs_dir_entry> res;
u16 block = m_base_block;
u32 off = 39 + 4;
u32 id = 1;
do {
auto blk = m_fs.m_blockdev.get(block);
while(off < 511) {
u8 type = blk.r8(off);
auto name = blk.rstr(off+1, type & 0xf);
type >>= 4;
if(type == 0xd)
res.emplace_back(fs_dir_entry(name, fs_dir_entry_type::dir, id));
else if(type != 0)
res.emplace_back(fs_dir_entry(name, fs_dir_entry_type::file, id));
off += 39;
id ++;
}
block = blk.r16l(2);
if(block >= m_fs.m_blockdev.block_count())
break;
off = 4;
} while(block);
return res;
}
std::pair<fsblk_t::block_t, const u8 *> fs_prodos::impl::dir::get_entry_ro(uint64_t key)
{
std::pair<fsblk_t::block_t, const u8 *> res;
res.first = m_fs.m_blockdev.get(m_base_block);
while(key >= 13) {
key -= 13;
u16 block = res.first.r16l(2);
if(!block || block >= m_fs.m_blockdev.block_count()) {
res.first = nullptr;
res.second = nullptr;
return res;
}
res.first = m_fs.m_blockdev.get(block);
}
res.second = res.first.rodata() + 4 + 39 * key;
return res;
}
std::pair<fsblk_t::block_t, u8 *> fs_prodos::impl::dir::get_entry(uint64_t key)
{
std::pair<fsblk_t::block_t, u8 *> res;
res.first = m_fs.m_blockdev.get(m_base_block);
while(key > 13) {
key -= 13;
u16 block = res.first.r16l(2);
if(!block || block >= m_fs.m_blockdev.block_count()) {
res.first = nullptr;
res.second = nullptr;
return res;
}
res.first = m_fs.m_blockdev.get(block);
}
res.second = res.first.data() + 4 + 39 * key;
return res;
}
filesystem_t::file_t fs_prodos::impl::dir::file_get(uint64_t key)
{
auto [blk, entry] = get_entry_ro(key);
if(!blk)
fatalerror("Out-of-range key on file_get\n");
u8 type = entry[0] >> 4;
if(type == 0 || type == 4 || type > 5)
fatalerror("Unhandled file type %x\n", type);
return new file(m_fs, entry, key);
}
filesystem_t::dir_t fs_prodos::impl::dir::dir_get(uint64_t key)
{
auto [blk, entry] = get_entry_ro(key);
if(!blk)
fatalerror("Out-of-range key on dir_get\n");
u8 type = entry[0] >> 4;
if(type != 0xd)
fatalerror("Unhandled directory type %x\n", type);
return new dir(m_fs, r16l(entry+0x11), key);
}
fs_prodos::impl::file::file(impl &fs, const u8 *entry, u16 key) : m_fs(fs), m_key(key)
{
memcpy(m_entry, entry, 39);
(void)m_key;
}
void fs_prodos::impl::file::drop_weak_references()
{
}
fs_meta_data fs_prodos::impl::file::metadata()
{
fs_meta_data res;
u8 type = r8(m_entry);
std::string name = rstr(m_entry+1, type & 0xf);
type >>= 4;
res.set(fs_meta_name::name, name);
if(type == 5) {
auto rootblk = m_fs.m_blockdev.get(r16l(m_entry+0x11));
res.set(fs_meta_name::length, rootblk.r24l(0x005));
res.set(fs_meta_name::rsrc_length, rootblk.r24l(0x105));
} else if(type >= 1 && type <= 3)
res.set(fs_meta_name::length, r24l(m_entry + 0x15));
else
fatalerror("fs_prodos::impl::file::metadata: Unhandled file type %d\n", type);
return res;
}
std::vector<uint16_t> fs_prodos::impl::file::get_file_blocks(uint8_t type, u16 block, u32 length)
{
u32 nb = (length+1)/512;
std::vector<uint16_t> res;
switch(type) {
case 1:
if(nb)
res.push_back(block);
break;
case 2: {
auto iblk = m_fs.m_blockdev.get(block);
if(nb > 255)
nb = 255;
for(u32 i=0; i != nb; i++)
res.push_back(iblk.r8(i) | (iblk.r8(i | 0x100) << 8));
break;
}
case 3: {
auto mblk = m_fs.m_blockdev.get(block);
for(u32 j=0; j < nb; j += 256) {
u32 idx = j/256;
auto iblk = m_fs.m_blockdev.get(mblk.r8(idx) | (mblk.r8(idx | 0x100) << 8));
for(u32 i=0; i != 256 && res.size() != nb; i++)
res.push_back(iblk.r8(i) | (iblk.r8(i | 0x100) << 8));
}
break;
}
default:
fatalerror("fs_prodos::impl::file::get_file_blocks: unknown file type %d\n", type);
}
return res;
}
std::pair<std::vector<uint16_t>, u32> fs_prodos::impl::file::data_blocks()
{
std::vector<uint16_t> blocks;
u8 type = r8(m_entry) >> 4;
u32 length = 0;
if(type >= 1 && type <= 3) {
length = r24l(m_entry + 0x15);
blocks = get_file_blocks(type, r16l(m_entry+0x11), length);
} else if(type == 5) {
auto kblk = m_fs.m_blockdev.get(r16l(m_entry+0x11));
length = kblk.r24l(0x005);
blocks = get_file_blocks(kblk.r8(0x000), kblk.r16l(0x001), length);
} else
fatalerror("fs_prodos::impl::file::data_blocks: Unhandled file type %d\n", type);
return std::make_pair(blocks, length);
}
std::pair<std::vector<uint16_t>, u32> fs_prodos::impl::file::rsrc_blocks()
{
std::vector<uint16_t> blocks;
u8 type = r8(m_entry) >> 4;
u32 length = 0;
if(type == 5) {
auto kblk = m_fs.m_blockdev.get(r16l(m_entry+0x11));
length = kblk.r24l(0x105);
blocks = get_file_blocks(kblk.r8(0x100), kblk.r16l(0x101), length);
} else
fatalerror("fs_prodos::impl::file::rsrc_blocks: Unhandled file type %d\n", type);
return std::make_pair(blocks, length);
}
std::vector<u8> fs_prodos::impl::file::read_all()
{
auto [blocks, length] = data_blocks();
std::vector<u8> data(length);
u32 pos = 0;
for(u16 block : blocks) {
u32 npos = pos + 512;
if(npos > length)
npos = length;
if(npos > pos) {
auto dblk = m_fs.m_blockdev.get(block);
memcpy(data.data() + pos, dblk.rodata(), npos - pos);
} else
break;
pos = npos;
}
return data;
}
std::vector<u8> fs_prodos::impl::file::rsrc_read_all()
{
auto [blocks, length] = rsrc_blocks();
std::vector<u8> data(length);
u32 pos = 0;
for(u16 block : blocks) {
u32 npos = pos + 512;
if(npos > length)
npos = length;
if(npos > pos) {
auto dblk = m_fs.m_blockdev.get(block);
memcpy(data.data() + pos, dblk.rodata(), npos - pos);
} else
break;
pos = npos;
}
return data;
}
const filesystem_manager_type FS_PRODOS = &filesystem_manager_creator<fs_prodos>;;
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