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Introduces flush_tracks to Drive, while switching its interface to using Track::Address and adjusting associated integer types.

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This commit is contained in:
Thomas Harte
2017-10-06 21:45:12 -04:00
parent f623bff5c3
commit 97a2be71e3
29 changed files with 150 additions and 238 deletions
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10
Storage/Disk/DiskImage/Formats/D64.cpp
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@@ -35,18 +35,18 @@ D64::D64(const char *file_name) :
}
}
unsigned int D64::get_head_position_count() {
int D64::get_head_position_count() {
return number_of_tracks_*2;
}
std::shared_ptr<Track> D64::get_track_at_position(unsigned int head, unsigned int position) {
std::shared_ptr<Track> D64::get_track_at_position(Track::Address address) {
// every other track is missing, as is any head above 0
if(position&1 || head)
if(address.position&1 || address.head)
return std::shared_ptr<Track>();
// figure out where this track starts on the disk
int offset_to_track = 0;
int tracks_to_traverse = position >> 1;
int tracks_to_traverse = address.position >> 1;
int zone_sizes[] = {17, 7, 6, 10};
int sectors_by_zone[] = {21, 19, 18, 17};
@@ -96,7 +96,7 @@ std::shared_ptr<Track> D64::get_track_at_position(unsigned int head, unsigned in
sector_data[0] = sector_data[1] = sector_data[2] = 0xff;
uint8_t sector_number = (uint8_t)(sector); // sectors count from 0
uint8_t track_number = (uint8_t)((position >> 1) + 1); // tracks count from 1
uint8_t track_number = (uint8_t)((address.position >> 1) + 1); // tracks count from 1
uint8_t checksum = (uint8_t)(sector_number ^ track_number ^ disk_id_ ^ (disk_id_ >> 8));
uint8_t header_start[4] = {
0x08, checksum, sector_number, track_number