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Do the framework and hopefully a lot of the maths of the Victor 9K encoder.

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This commit is contained in:
David Given
2021-11-27 23:38:57 +01:00
parent 6247d3c5e6
commit b412d54998
4 changed files with 197 additions and 13 deletions
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8
arch/victor9k/encoder.cc
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@@ -47,8 +47,9 @@ public:
Victor9kEncoderProto::TrackdataProto trackdata;
getTrackFormat(trackdata, physicalTrack, physicalSide);
for (int sectorId : trackdata.sectors().sector())
for (int i = 0; i < trackdata.sector_range().sector_count(); i++)
{
int sectorId = trackdata.sector_range().start_sector() + i;
const auto& sector = image.get(physicalTrack, physicalSide, sectorId);
if (sector)
sectors.push_back(sector);
@@ -63,8 +64,9 @@ public:
Victor9kEncoderProto::TrackdataProto trackdata;
getTrackFormat(trackdata, physicalTrack, physicalSide);
std::vector<bool> bits(trackdata.bits_per_revolution());
unsigned clockRateUs = 166666.0 / trackdata.bits_per_revolution();
unsigned bitsPerRevolution = trackdata.original_data_rate_khz() * trackdata.original_period_ms();
std::vector<bool> bits(bitsPerRevolution);
double clockRateUs = 166666.0 / bitsPerRevolution;
unsigned cursor = 0;
fillBitmapTo(bits, cursor, trackdata.post_index_gap_us() / clockRateUs, { true, false });

18
arch/victor9k/victor9k.proto
View File

@@ -6,18 +6,20 @@ message Victor9kDecoderProto {}
message Victor9kEncoderProto {
message TrackdataProto {
message SectorsProto {
repeated int32 sector = 1 [(help) = "write these sectors (in order) on each track"];
message SectorRangeProto {
optional int32 start_sector = 1 [(help) = "first sector ID on track"];
optional int32 sector_count = 2 [(help) = "number of sectors on track"];
}
optional int32 min_cylinder = 1 [(help) = "minimum cylinder this format applies to"];
optional int32 max_cylinder = 2 [(help) = "maximum cylinder this format applies to"];
optional int32 head = 3 [(help) = "which head this format applies to"];
optional int32 min_cylinder = 1 [(help) = "minimum cylinder this format applies to"];
optional int32 max_cylinder = 2 [(help) = "maximum cylinder this format applies to"];
optional int32 head = 3 [(help) = "which head this format applies to"];
optional int32 bits_per_revolution = 4 [(help) = "number of bits on this cylinder"];
optional double post_index_gap_us = 5 [(help) = "size of post-index gap"];
optional double original_period_ms = 4 [(help) = "original rotational period of this cylinder"];
optional double original_data_rate_khz = 5 [(help) = "original data rate of this cylinder"];
optional double post_index_gap_us = 6 [(help) = "size of post-index gap"];
optional SectorsProto sectors = 6 [(help) = "write these sectors (in order) on each track"];
optional SectorRangeProto sector_range = 7 [(help) = "write these sectors on each track"];
}
repeated TrackdataProto trackdata = 1;