github.com/livingcomputermuseum.ContrAlto
1
0
Fork 0
mirror of https://github.com/livingcomputermuseum/ContrAlto.git synced 2026-05-04 15:06:48 +00:00
Code Issues Releases Wiki Activity

Initial rough implementation of Display hardware and associated tasks. Not really working.

Browse Source
This commit is contained in:
Josh Dersch
2015-11-10 17:04:05 -08:00
parent e1c90dbe01
commit ca638f1d6e
17 changed files with 697 additions and 128 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
Contralto/IO/DiskController.cs
View File

@@ -297,7 +297,7 @@ namespace Contralto.IO
// Update the WDINIT signal; this is based on WDALLOW (!_wdInhib) which sets WDINIT (this is done
// in KCOM way above).
// WDINIT is reset when BLOCK (a BLOCK F1 is being executed) and WDTSKACT (the disk word task is running) are 1.
//
//
if (_system.CPU.CurrentTask.Priority == (int)CPU.TaskType.DiskWord &&
_system.CPU.CurrentTask.BLOCK)
{
@@ -639,7 +639,7 @@ namespace Contralto.IO
// Sector timing. Based on table on pg. 43 of the Alto Hardware Manual
private double _elapsedSectorTime; // elapsed time in this sector (in clocks)
private const double _sectorDuration = (40.0 / 12.0); // time in msec for one sector
private const double _sectorClocks = _sectorDuration / 0.00017; // number of clock cycles per sector time.
private const double _sectorClocks = _sectorDuration / (0.00017); // number of clock cycles per sector time.
private int _sectorWordIndex;