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It appears the problem is as simple as sectors being counted from zero.

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This commit is contained in:
Thomas Harte
2016-08-01 10:08:38 -04:00
parent f5e4ea3351
commit bc10b3ee9a
2 changed files with 2 additions and 4 deletions
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2
Machines/Commodore/1540/C1540.cpp
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@@ -126,7 +126,6 @@ void Machine::process_input_bit(int value, unsigned int cycles_since_index_hole)
{ {
_driveVIA.set_sync_detected(true); _driveVIA.set_sync_detected(true);
_bit_window_offset = -1; // i.e. this bit isn't the first within a data window, but the next might be _bit_window_offset = -1; // i.e. this bit isn't the first within a data window, but the next might be
printf("X");
} }
else else
{ {
@@ -141,7 +140,6 @@ void Machine::process_input_bit(int value, unsigned int cycles_since_index_hole)
{ {
set_overflow_line(true); set_overflow_line(true);
} }
printf("%02x.", (uint8_t)_shift_register);
} }
else else
set_overflow_line(false); set_overflow_line(false);

4
Storage/Disk/Formats/D64.cpp
View File

@@ -112,8 +112,8 @@ std::shared_ptr<Track> D64::get_track_at_position(unsigned int position)
uint8_t *sector_data = &data[sector * 349]; uint8_t *sector_data = &data[sector * 349];
sector_data[0] = sector_data[1] = sector_data[2] = 0xff; sector_data[0] = sector_data[1] = sector_data[2] = 0xff;
uint8_t sector_number = (uint8_t)(sector+1); uint8_t sector_number = (uint8_t)(sector); // sectors count from 0
uint8_t track_number = (uint8_t)((position >> 1) + 1); uint8_t track_number = (uint8_t)((position >> 1) + 1); // tracks count from 1
uint8_t checksum = (uint8_t)(sector_number ^ track_number ^ _disk_id ^ (_disk_id >> 8)); uint8_t checksum = (uint8_t)(sector_number ^ track_number ^ _disk_id ^ (_disk_id >> 8));
uint8_t header_start[4] = { uint8_t header_start[4] = {
0x08, checksum, sector_number, track_number 0x08, checksum, sector_number, track_number