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Fixed typos in the comments

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Stephen White 2019-04-28 15:04:32 +10:00
parent a0e88c5e79
commit 65893c857c
1 changed files with 2 additions and 2 deletions
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src/Drive.cpp
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@ -156,7 +156,7 @@ extern "C"
// Side effects // Side effects
// When software uses a valid encoding scheme long runs of 0 are avoided. // When software uses a valid encoding scheme long runs of 0 are avoided.
// Even if the disk is old or the drive is slightly miss alligned or varying in rotation speed (within a certain range) there should not be a problem reading the data. // Even if the disk is old or the drive is slightly miss alligned or varying in rotation speed (within a certain range) there should not be a problem reading the data.
// But there is still nothing that to prevent the magnetic field on a disk changing slowly. // But there is still nothing to prevent the magnetic field on a disk changing slowly.
// So what happens when the magnetic field is changing slowly but just fast enough for induction to be detected? // So what happens when the magnetic field is changing slowly but just fast enough for induction to be detected?
// The first amplifier will detect the weak induced signal and maximise its gain. With a maximised gain noise can become a problem. // The first amplifier will detect the weak induced signal and maximise its gain. With a maximised gain noise can become a problem.
// The slope of the slowly changing signal will be differentiated to produce a signal that will be near zero. // The slope of the slowly changing signal will be differentiated to produce a signal that will be near zero.
@ -222,7 +222,7 @@ extern "C"
// If UE4's count is left to cycle (ie no flux reversals for 16 counts) a 1 will be shifted in regardless. // If UE4's count is left to cycle (ie no flux reversals for 16 counts) a 1 will be shifted in regardless.
// This limits the hardware to only read three consecutive 0s between any two 1s. (with GCR this will never occur) // This limits the hardware to only read three consecutive 0s between any two 1s. (with GCR this will never occur)
// //
// The 1541 uses soft sectors. The hardware can only detect the sync sequence of then one bits in a row and everything must then be phase locked to that. // The 1541 uses soft sectors. The hardware can only detect the sync sequence of ten one bits in a row and everything must then be phase locked to that.
// The sync sequence phase locks to blocks. Blocks can really be any size, even the entire track. // The sync sequence phase locks to blocks. Blocks can really be any size, even the entire track.
// UC2 monitors the parallel output of UD2/UE4, when all 10 bits are 1, the output pin 9 goes low indicating a SYNC sequence has been read. // UC2 monitors the parallel output of UD2/UE4, when all 10 bits are 1, the output pin 9 goes low indicating a SYNC sequence has been read.
// Whenever the SYNC is asserted UE3 is reset and we are also phase locked to bytes. // Whenever the SYNC is asserted UE3 is reset and we are also phase locked to bytes.