diff options
Diffstat (limited to 'src/lib/formats/hxcmfm_dsk.cpp')
-rw-r--r-- | src/lib/formats/hxcmfm_dsk.cpp | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/src/lib/formats/hxcmfm_dsk.cpp b/src/lib/formats/hxcmfm_dsk.cpp index d7cace590e7..b6845b28e4a 100644 --- a/src/lib/formats/hxcmfm_dsk.cpp +++ b/src/lib/formats/hxcmfm_dsk.cpp @@ -129,25 +129,25 @@ bool mfm_format::save(io_generic *io, const std::vector<uint32_t> &variants, flo int tpos = sizeof(MFMIMG); int dpos = tpos + track_count*head_count*sizeof(MFMTRACKIMG); - uint8_t trackbuf[150000/8]; - for(int track=0; track < track_count; track++) { for(int side=0; side < head_count; side++) { - int track_size; - generate_bitstream_from_track(track, side, 2000, trackbuf, track_size, image); - track_size = (track_size+7)/8; + auto trackbuf = generate_bitstream_from_track(track, side, 2000, image); + std::vector<uint8_t> packed((trackbuf.size() + 7) >> 3, 0); + for(uint32_t i = 0; i != trackbuf.size(); i++) + if(trackbuf[i]) + packed[i >> 3] |= 0x80 >> (i & 7); MFMTRACKIMG trackdesc; trackdesc.track_number = track; trackdesc.side_number = side; - trackdesc.mfmtracksize = track_size; + trackdesc.mfmtracksize = packed.size(); trackdesc.mfmtrackoffset = dpos; io_generic_write(io, &trackdesc, tpos, sizeof(MFMTRACKIMG)); - io_generic_write(io, trackbuf, dpos, track_size); + io_generic_write(io, packed.data(), dpos, packed.size()); tpos += sizeof(MFMTRACKIMG); - dpos += track_size; + dpos += packed.size(); } } |