[Sam-users] ASCD 1.7 - the new version of the emulator

aleskeprt at gmail.com aleskeprt at gmail.com
Sat Jun 6 23:53:50 CEST 2026


ASCD 1.7 has been published today. Three years after the previous version.

This version mainly brings:
* Unicode - the whole program has been converted to Unicode (2-byte
characters), this allows to use non-English filenames in English Windows
* I used Claude AI to find bugs in the code, and I fixed them

The full changelog:
* All text is now Unicode, emulator is now compatible only with Windows 2000
or later

* Zlib compression library updated to version 1.3

* Fixed a small bug in HDD emulation - seek error during write could be
swallowed

* Fixed SamSnap not saving SAA port values correctly

* Fixed a bug in AY8910 envelopes

* Fixed possible crashes and memory corruption when loading malformed or
truncated .z80 snapshots

* Fixed mouse state not being restored when loading a Sam snapshot

* Fixed a possible crash when opening a corrupted or oversized disk image

* Fixed graphics corruption in 24-bit color video mode

* Fixed garbled text shown in error message popups

* Fixed a possible buffer overflow when recording sound to an AVI file with
a compressor

* AIR playback: fixed locating the recorded game file and reading custom
data saved by other versions

* Fixed a memory leak when opening HDF images and a handle leak in the
Recent Files menu

* Fixed a possible crash when opening files with very short names

* Fixed a use-after-free during keyboard/mouse re-initialization

* Fixed handling of empty or corrupted tape files and of switching tapes
during loading

* Fixed an out-of-bounds read when loading a corrupted Sam snapshot (mouse
data)

* AIR playback: fixed uninitialised keyboard bits and reading of truncated
AIR files

* Fixed a possible crash caused by a malformed command-line argument


Note: A new version of the sister emulator Alyx will be published too. (Not
yet ready, I am working on a small improvement.)

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