ZEsarUX v5.1 Beta (2017/09/08) is released. ZEsarUX is a ZX Machines Emulator for Unix, including: ZX Spectrum ; ZX-Uno ; ZX80 ; ZX81 ; Z88 ; Jupiter Ace ; Chloe 140 SE, Chloe 280 SE ; Prism ; Timex TS 2068 ; Amstrad CPC 464. ZEsarUX is Open-Source and runs on Windows, Mac OS X and Linux.

ZEsarUX Features:
* Runs on any Unix system and Windows: tested on Linux x86, Linux x86_64, Linux Raspbian, Mac OS X, Windows native, Windows + Cygwin
* Emulates Spectrum models: 16k, 48k, Inves Spectrum +, Spectrum 128k (English and Spanish), Spectrum +2 (English, Spanish and French), Spectrum +2A (English and Spanish), Microdigital TK90X (Portuguese and Spanish), TK95
* Emulates ZX-Uno
* Emulates Sinclair ZX80
* Emulates Sinclair ZX81
* Emulates Cambridge Z88
* Emulates Jupiter Ace
* Emulates Chloe 140 SE, Chloe 280 SE
* Emulates Prism
* Emulates Timex TS 2068
* Emulates Amstrad CPC 464
* Almost perfect emulation of timing of all machine models
* Supports undocumented Z80 flags, features, and MEMPTR register
* Supports idle bus port, contended memory, ULA early/late timings
* Supports Pentagon timing
* Supports ULAPlus: Standard 64 colour palette, linear modes with 16 colours per pixel: Radastan Mode: 128x96, mode 5: 256x96, mode 7: 128x192, mode 9: 256x192
* Supports Chroma81 ZX81 Colour mode
* Supports Spectra Video Modes
* Supports Timex Video modes (Mode 0 standard, 1 dual screen, 2 hires colour 8x1, 6 512x192 monochrome)
* Supports All Video modes from Prism machine
* Supports ZGX Sprite Chip
* Supports snow effect on Spectrum models
* Supports interlaced, scanlines and Gigascreen effects
* Supports hi-res modes on ZX Spectrum (rainbow effects and others) and ZX80/ZX81 (UDG, CHR$128, WRX, HRG and some other hi-res modes)
* Emulates all the oddities of the Inves Spectrum +: 64 KB RAM, RAM initialization with FF00H pattern, OUT ula AND RAM, EAR and MIC XOR, no contended memory, snow in border, colour ula delay, interrupt starts at end of top border (not at the beginning of the border), corrupt memory on every interrupt, no idle bus
* Uses Video drivers: X-Windows, SDL, Cocoa (Mac OS X), Framebuffer, ncurses, aalib, cacalib, stdout(console), simpletext(console)
* Uses Audio Drivers: PulseAudio, Alsa, SDL, DSP(OSS), CoreAudio (Mac OS X).
* Supports dumping audio & video to file
* Supports real tape loading of file formats: RWA, SMP, WAV, TZX, CDT, TAP, P, O. It handles loading of turbo load tapes or any type of tape loading for standard/non standard loading routines
* Handles binary tape format files (TAP, TZX, O, P, CDT) on standard BASIC ROM routines for ZX Spectrum, ZX80, ZX81, Amstrad CPC, Jupiter Ace
* Handles real audio loading (RWA, SMP, WAV) on standard BASIC ROM routines for ZX Spectrum, ZX80, ZX81, Amstrad CPC, Jupiter Ace
* Simulates real tape loading on standard BASIC ROM routines for ZX Spectrum, ZX80, ZX81
* Handles snapshot format: ZX, Z80, SP, SNA (loading only), P, O, Z81 (loading only), ACE
* Handles DCK Timex dock cartridges
* Emulates ZX Spectrum MMC Interfaces: ZXMMC, DivMMC
* Emulates ZX81 ZXPand MMC Interface
* Handles RAM, EPROM and Intel Flash cards on Z88
* Handles compressed formats zip, tar, rar, gz through external utilities
* Supports Quicksilva, ZON-X81, and VSYNC-based sound on ZX80/81
* Supports Speaker and Soundbox sound on Jupiter Ace
* Supports RAM packs on ZX80/81 up to 56 KB
* Supports RAM packs on Jupiter Ace up to 35 KB
* Joystick emulation with real joystick (on Linux) and keyboard cursors: Kempston, Sinclair 1&2, Cursor Joystick, Cursor & Shift, OPQA, Fuller, Zebra, Mikro-Gen. Autofire function also
* ZX Printer emulation
* Lightgun emulation: Almost perfect emulation of Gunstick from MHT Ingenieros S.L and experimental emulation of Magnum Light Phaser
* Kempston mouse emulation
* Supports Input spool text file to simulate keyboard press
* Supports reading Pokes from .POK files
* Debug functions: Registers, Dissassemble, Breakpoints (PC, Conditional, Peek), Step-to-step, Hexadecimal Dump, View Sprites, Find byte (useful to find POKEs), CPU Transaction log, View BASIC
* Accessibility support: Print char traps allows to capture generated text from almost any program or game, using standard ROM calls (RST 10H) or even non standard print character rutines. Can send generated text from a game to a text-to-speech program. It's ready for text to speech support for blind or visually impaired people. Menu emulator can be also read by a text-to-speech program.
* Simulates upper RAM memory refresh on Spectrum 48Kb, losing its contents when changing R register very quickly
* Other features not enabled by default on compile process: MEMPTR emulation, Visualmem menu, CPU Statistics

ZEsarUX changelog:
Added machine Chrome (Italian ZX Spectrum Clone)
Added machine ZX-Evolution TS-Conf
Added machine MK14
Added Visualmem, Poke, Find, Save binary menus also for Sinclair QL
Added setting to test configuration
Added lots of new ZEsarUX remote commands (ZRCP). See ZRCP help to know them
Added QL GUI Style
Added menu to find and set lives in games
Added menu to view color palettes
Added actions commands to breakpoints, so you can run some actions when a breakpoint is fired
Added up to three AY Chips
Added emulation of other DAC chips appart from Specdrum: Covox, etc
Added setting to set 256kb or 512kb on Spectrum 128k machines
Added setting to set F keys (F1, F2, etc) to run different actions: reset, nmi, exit emulator, etc
Added TBBlue features: Sprite chip, Layer2, RTC clock for esxdos, 1 MB RAM
Added ZX-Uno features: Radasoffset and Radaspadding registers, to do hardware scrolling
Added ESXDOS handler so file operations can be done with files stored on your computer hard disk, and not only on virtual mmc/ide files. Examples can be found on extras/media/spectrum/esxdos_handler/. "Classic" mmc/ide emulation by using virtual mmc/ide files can also be used
Added feature "memory zone" to ZRCP and all menus that inspect memory (debug, disassemble, sprites etc): now you can look at all memory zones, for example: full 128kb ram, 64kb rom of +2A, divmmc ram, etc
Added boot logo

Moved folders: docs, media, snap_tests to a "ZEsarUX-extras" package. These folders have been separated from the emulator main distributed file, and the main download have been reduced to 5 MB aprox. The git repository still holds all the files (extras have been moved to folder "extras"), but maybe in the future I will remove them also from the repo.
Moved mmc/ide files location to extras/media/disk_images folder

Improved menu interface:
*menu movement with mouse
*colours are greyscaled when multitask disabled
*allow blinking text, like the input cursor (needs multitask on)
*new splash window type which disappears automatically (needs multitask on). Used only on change memory zones from debug cpu menu, but it will be used on more places probably

Improved debugger:
*you can now set conditions for all flags, written as: FS,FZ,FP,FV,FH,FN,FC
*now breakpoints are evaluated before running the current opcode (instead of after). So breakpoints like "PC=0" and doing a reset from menu, now works
*now you can set breakpoints from command line/config file but not enabled by default. You need --enable-breakpoints setting
*now the multitask setting is not lost when a breakpoint is fired

Improved QL emulation: experimental support of LBYTES command, added QL root directory selector for mdv1, mdv2, flp1
Improved Sprite Viewer: Save sprite, TBBlue sprite viewer, inverse sprite, set bpp (8,4,2,1), set palette
Improved stdout driver. Now can show ansi colours
Improved messages windows. Can now find text using f and n
Improved footer. Host CPU % usage on footer is not enabled by default to avoid confussion with emulated CPU speed. You can enable it with a setting. Host CPU % usage is not show on Windows.

Fixed turbo mode and breakpoints. Breakpoints were disabled when changing turbo mode
Fixed latency problems on all audio drivers
Fixed AY sound bugs when volume levels where > 15
Fixed Windows pthreads version
Fixed TBBlue reset i/o ports when reset and hard reset

Updated TBBlue boot loader

Some other minor bugfixes and improvements

Download: ZEsarUX v5.1 Beta (2017/09/08)
Source: Here