diff options
Diffstat (limited to 'src/lib/formats/dim_dsk.cpp')
-rw-r--r-- | src/lib/formats/dim_dsk.cpp | 38 |
1 files changed, 19 insertions, 19 deletions
diff --git a/src/lib/formats/dim_dsk.cpp b/src/lib/formats/dim_dsk.cpp index 53359b2fd1c..1f0902c2859 100644 --- a/src/lib/formats/dim_dsk.cpp +++ b/src/lib/formats/dim_dsk.cpp @@ -2,7 +2,7 @@ // copyright-holders:Olivier Galibert /********************************************************************* - formats/dim_dsk.c + formats/dim_dsk.cpp DIM disk images @@ -13,48 +13,53 @@ #include "ioprocs.h" #include <cstring> +#include <tuple> + dim_format::dim_format() { } -const char *dim_format::name() const +const char *dim_format::name() const noexcept { return "dim"; } -const char *dim_format::description() const +const char *dim_format::description() const noexcept { return "DIM disk image"; } -const char *dim_format::extensions() const +const char *dim_format::extensions() const noexcept { return "dim"; } -int dim_format::identify(util::random_read &io, uint32_t form_factor, const std::vector<uint32_t> &variants) +int dim_format::identify(util::random_read &io, uint32_t form_factor, const std::vector<uint32_t> &variants) const { uint8_t h[16]; - - size_t actual; - io.read_at(0xab, h, 16, actual); + auto const [err, actual] = read_at(io, 0xab, h, 16); + if(err || (16 != actual)) + return 0; if(strncmp((const char *)h, "DIFC HEADER", 11) == 0) - return 100; + return FIFID_SIGN; return 0; } -bool dim_format::load(util::random_read &io, uint32_t form_factor, const std::vector<uint32_t> &variants, floppy_image *image) +bool dim_format::load(util::random_read &io, uint32_t form_factor, const std::vector<uint32_t> &variants, floppy_image &image) const { + std::error_condition err; size_t actual; int offset = 0x100; uint8_t h; uint8_t track_total = 77; int cell_count = form_factor == floppy_image::FF_35 ? 200000 : 166666; - io.read_at(0, &h, 1, actual); + std::tie(err, actual) = read_at(io, 0, &h, 1); + if (err || (1 != actual)) + return false; int spt, gap3, bps, size; switch(h) { @@ -114,7 +119,7 @@ bool dim_format::load(util::random_read &io, uint32_t form_factor, const std::ve sects[i].deleted = false; sects[i].bad_crc = false; sects[i].data = §_data[sdatapos]; - io.read_at(offset, sects[i].data, bps, actual); + std::tie(err, actual) = read_at(io, offset, sects[i].data, bps); // FIXME: check for errors and premature EOF offset += bps; sdatapos += bps; } @@ -126,14 +131,9 @@ bool dim_format::load(util::random_read &io, uint32_t form_factor, const std::ve } -bool dim_format::save(util::random_read_write &io, const std::vector<uint32_t> &variants, floppy_image *image) -{ - return false; -} - -bool dim_format::supports_save() const +bool dim_format::supports_save() const noexcept { return false; } -const floppy_format_type FLOPPY_DIM_FORMAT = &floppy_image_format_creator<dim_format>; +const dim_format FLOPPY_DIM_FORMAT; |