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Ensured the head_unload_delay values are properly seeded, and generalised the quick escape.

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Thomas Harte
2017-08-19 22:06:56 -04:00
parent b24d04fc09
commit 669e0caff5
2 changed files with 5 additions and 2 deletions
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4
Components/8272/i8272.cpp
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@@ -128,6 +128,7 @@ void i8272::run_for(Cycles cycles) {
// check for any head unloads // check for any head unloads
if(head_timers_running_) { if(head_timers_running_) {
int timers_left = head_timers_running_;
for(int c = 0; c < 4; c++) { for(int c = 0; c < 4; c++) {
for(int h = 0; h < 2; h++) { for(int h = 0; h < 2; h++) {
if(drives_[c].head_unload_delay[c] > 0) { if(drives_[c].head_unload_delay[c] > 0) {
@@ -135,10 +136,11 @@ void i8272::run_for(Cycles cycles) {
drives_[c].head_unload_delay[c] = 0; drives_[c].head_unload_delay[c] = 0;
drives_[c].head_is_loaded[c] = false; drives_[c].head_is_loaded[c] = false;
head_timers_running_--; head_timers_running_--;
if(!head_timers_running_) return;
} else { } else {
drives_[c].head_unload_delay[c] -= cycles.as_int(); drives_[c].head_unload_delay[c] -= cycles.as_int();
} }
timers_left--;
if(!timers_left) return;
} }
} }
} }

3
Components/8272/i8272.hpp
View File

@@ -102,7 +102,8 @@ class i8272: public Storage::Disk::MFMController {
Drive() : Drive() :
head_position(0), phase(NotSeeking), head_position(0), phase(NotSeeking),
drive(new Storage::Disk::Drive), drive(new Storage::Disk::Drive),
head_is_loaded{false, false} {}; head_is_loaded{false, false},
head_unload_delay{0, 0} {};
} drives_[4]; } drives_[4];
int drives_seeking_; int drives_seeking_;