whatsnew.txt					

        What's new in Emu75 ?


Emu75 version 1.33 - 6 may 2022
   - enable the XIL feature back

Emu75 version 1.32 - 11 feb 2019
   - minor correction of hpil simulation inaccuracies
   - support of the Esc S roll up sequence
   - add the /s option for native speed on fast host (for diagrom)

Emu75 version 1.3 - 27 oct 2018
   - support of the Expansion Pod memory

Emu75 version 1.2 - 17 may 2018
   - fix of a problem with the roll-over of the RTC counter
   - fix a bug with RTC counter access that caused problems in RANDOMIZE (w/o arg) , also in TIME on 75's ROM aaaaaa.
   - minor speed improvement

Emu75 version 1.1 - 3 july 2017
   - support of the Diagnostic ROM (although several tests fail)
   - fix of a minor CPU emulation error (detected by the diag ROM)

Emu75 version 1.0 - 27 april 2017
   - promoted to version 1.0 after user tests
   - add the GNU licence information in the help screen and main source file.

Emu75 version 0.97 -  3 april 2017
    - full support of the 66-line display format in DOSBox
    - added the shift/ctrl-I/R key sequences on F7, made F9-F12 keys configurable with def key 

Emu75 version 0.96 - 15 march 2017
    - correction of a problem that may cause a 'RAM is invalid' error at emu75 startup

Emu75 version 0.95 - 11 march 2017
   - fixed the LCD problems in Visicalc
   - the HP75 clock is updated with the host system time at emu75 startup

Emu75 version 0.94 - 2 march 2017
   - HPIL implemented, PMS support done.
   - first functional released test version

Emu75 versions 0.91-0.93 - jan-feb 2017
   - disassembler completed with symbolic entry points support
   - bank switched ROM management done
   - CPU emulation coded in C and functional
   - I/O emulation done
   - working versions - not released

Emu75 version 0.9 - dec 2016
   - second restart of Emu75 project, following the new activities around the HP75
     and the creation of the HP75 group
   - recovery and consolidation of the HP75 entry point list (with other contributors)


Emu75 version 0.1 - 2010
   - restart of the Emu75 idea, following the availability of the HP75 source code
     on the MoHPC DVD
   - general emu75 architecture defined but not functional,
   - put on hold, due to other on-going projects and lack of motivation
     (low HP75 interest in the HP user community)


Emu75 version 0.0 - end 1996
   - first ideas on a possible HP75 emulator based on my Emu71,
   - basic disassembler (from my HP85 version)
   - attempt to write a CPU emulation in assembly language
   - stopped due to too little knowledge on the machine internals


  For more information or any update, please visit my home page at:
    http://www.jeffcalc.hp41.eu/emu75