UKNCBTL beta16 is released. UKNCBTL -- UKNC Back to Life! -- is UKNC emulator for Windows 2000/XP/Vista. UKNC (УКНЦ, Электроника МС-0511) is soviet school computer based on two PDP-11 compatible processors KM1801VM2.

UKNCBTL beta15 Changelog:
r151
[*] Some progress on IDE emulation: minor fixes.
r150
[*] Some progress on IDE emulation: minor fixes.
r149
[*] Some progress on IDE emulation: command 20h next sector, command 91h.
r148
[*] Some progress on IDE emulation: command 20h and other fixes.
r147
[*] Some progress on IDE emulation.
r146
[*] Some progress on IDE emulation: read geometry from first sector.
r145
[*] Some progress on IDE emulation: calculate geometry.
r144
[*] Some progress on IDE emulation: port mapping etc.
r143
[*] Some progress on IDE emulation: port mapping etc.
r142
[*] Preparing for IDE emulation: UI, classes.
r141
[+] IDE controller ROM images.
r140
[+] Vlad Zhigalov's book pages.
r139
[*] Reworked methods SetPortWord,SetPortByte for CPU memory controller
[*] Read from memory at DST address for MOVB,CLRB,MFPS commands
r138
[+] Processing DCLO and INIT for port 177716
[*] Reworked methods GetPortByte, GetPortWord, SetPortWord, SetPortByte
[*] Fixed error when reading an odd address
r137
[*] Rewritten work with signals HALT,ACLO,DCLO.
r136
Edited wiki page through web user interface.
r135
[*] Fixed bug with reset of emulated computer
[*] Fixed bug with reading vector interrupt from memory (firstly must be read new value of vector, then install new values of PC and PSW)
r134
[*] Changed interrupt processing and command execution: abort command and interrupt on bus error(TRAP4), CPC and CPSW now working correctly.
[+] Implemented double bus error (ДВОЙНОЕ ЗАВИСАНИЕ).
[*] Other minor fixes.
r133
[*] Removed unused methods from Processor
[*] New methods - CommandExecution and InterruptProcessing
[*] Reworked methods Execute and DebugTicks
r132
[*] Fixed bug with channel K0 receiver, when the interrupt enable bit is cleared.
r131
[+] Clearing EVNT request interrupt by RESET command.
[*] Fixed big and small bugs with channels, may be all, but may be not all... Not know... Algorithm of the work of channels differs slightly.
r130
[*] Writing to tape (WAV file).

Download: UKNCBTL beta16
Source:Here