1. Alter method of writing disk sectors to IndexedDB, to avoid dragging along the entire 16KB IO Unit buffer area and unintentionally inflating host disk usage by 30-60X (ouch). This was causing Quota Exceeded errors in recent versions of Firefox.
2. Add onabort traps in B5500DiskUnit to catch QuotaExceeded errors.
3. Modify delay-deviation adjustment mechanism in B5500SetCallback to avoid oscillating between positive and negative cumulative deviations.
4. Correct tape reel angular motion in B5500MagTapeDrive, especially during reverse tape movement.
5. Fix bug with reporting memory parity error during tape I/O, should that ever occur.
6. Reset CPA Algol Glyphs option in default system configuration template.
7. Allow tools/B5500LibMaintDecoder to examine an entire .bcd tape image file instead of just the first 64KB.
8. Add USE SAVEPBT to default options in tools/COLDSTART-XIII deck.
9. Eliminate extraneous "schema update successful" alert when altering a disk subsystem configuration.
10. Commit minor corrections to source/B65ESPOL/SOURCE.alg_m from Richard Fehlinger.
1. Move project from Google Code to GitHub (https://github.com/pkimpel/retro-b5500/). Update links and help pages; convert wiki pages to GitHub's MarkDown format.
2. Implement emulator-hosted memory dump to a tape image that can be saved and input into the B5500 DUMP/ANALYZE utility for analysis. Activated by clicking the NOT READY button on the Console.
3. Fix bad assignments to Processor X register in arithmetic ops (affected only SyllableDebugger script).
4. Remove IndexedDB.openDatabase() version parameter so the B5500ColdLoader and tools/ scripts will work in non-Firefox browsers.
5. Add a "?db" query string parameter to the tools/scripts so these scripts can open disk subsystems other than B5500DiskUnit.
6. Correct pre-allocated file locations and ESU card in tools/COLDSTART-XIII.card.
7. Implement new double-click mechanism to copy and clear the contents of card punch, datacom terminal, and line-printer output areas to a temporary window for subsequent copying or saving.
8. Correct handling of Ctrl-B (break), Ctrl-D (disconnect request), Ctrl-E (WRU), Ctrl-L (clear input buffer), and Ctrl-Q (alternate end-of-message) in B5500DatacomUnit.
9. Implement reporting of Model IB (slow, bulk) disk in B5500DiskUnit readInterrogate.
10. Implement detection of browser IndexedDB quota-exceeded errors in B5500DiskUnit (primarily to handle the fixed 2GB limit for off-line storage in Firefox).
11. Correct problem when line printer exhausted paper and FORM FEED triple-click did not clear the condition.
12. Eliminate BOT marker sensed in result for tape drive Write Interrogate operation -- Mark XIII and XV MCPs treat this as an error and will not purge blank tapes because of it.
13. Fix double-click of SPO INPUT REQUEST button either sending a duplicate interrupt to the system or the second click moving focus from the SPO input box.
14. Further tuning of delay-deviation adjustment mechanism in B5500SetCallback.js.
15. Reinstate ability of SPO to wrap long outputs to additional lines (apparently lost with new SPO input mechanism in 1.00).
16. Commit preliminary COOLSTART-XIII.card and MCPTAPEDISK-XIII.card decks.
1. Split operator Control Panel from B5500Console and make it a small, separate window.
2. Implement emulator home page in what remains of B5500Console page, with Start buttons for emulator.
3. Implement improvements to setCallback() mechanism, copied from Datatron 205 project.
4. Increase scrollback for SPO and Datacom windows from 1500 to 5000 lines.
5. Correct application of green-bar styling in B5500LinePrinter (apparent in Chrome).
6. Improve initial positioning of Magnetic Tape unit windows; add "B" to mag tape reel image.
7. Minor optimizations to bit-field isolate/insert routines in CentralControl.
8. Miscellaneous enhancements to UI appearance.
9. Minor changes to hosting website pages.
2. Fully implement Double Precision Add/Subtract (DLA/DLS), Multiply (DLM), and Divide (DLD) syllables.
3. Replace standard setTimeout() by redesigned setCallback() mechanism throughout the emulator for scheduling timing delays and other callbacks on the Javascript thread. Delete obsolete setImmediate() mechanism.
4. Replace "new Date().getTime()" by "performance.now()" calls for greater timer precision.
5. Minor tweaks to Single Precision arithmetic operators.
6. Replace Javascript postfix operators by prefix operators wherever feasible (e.g., x++ becomes ++x).
8. Attempt to correct character translation and keyboard filtering in DatacomUnit for CANDE.
9. Minor changes to button colors and illumination behavior for I/O devices and Console.
10. Suppress I/O device classes in B5500SyllableDebugger by default (uncomment in source to enable).
. Drop support for webkitIndexedDB and mozIndexedDB (for now).
. Configure four tape drives (MTA-MTD) by default.
1. Initial implementation of a datacom terminal.
2. Initial implementation (read-only) of magnetic tape drives.
3. Further work towards getting P2 to function (but not working yet).
4. Allow device driver classes to be optionally included in the global UI script.
5. Fix callback arguments handling in SetCallback.
6. Decrease width of SPO window slightly.
7. Improve trapping and printing of SPO keystrokes, based on datacom implementation.
8. Minor performance tuning improvements.
9. Dump raw header words in octal in tools/B5500DiskDirList.html script.
10. New wiki pages and several updates to existing ones.
2. Implement new setCallback() mechanism to wrap setTimeout() and setImmediate().
2. Minor change to P2 management; remove context-bound callbacks.
3. Reduce window size and font size for peripheral UIs.
4. Implement <label> for file names on ColdLoader Load table.
5. Correct placement and color of buttons on Console and SPO.
6. Minor wiki updates for UI changes.
7. Rework SPO implementation to eliminate ".that" properties, implement setCallback(), and fix long-standing bugs that caused flaky operation.
