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Tests of emulators:
kliveface Klive   Ver. 1.1  author: Steve Snake, 2002. For Windows.
spinicon Spin   Ver. 0.6T  authors: Spin team, 2006. For Windows.
espectrum ESpectrum   Ver. 0.6 beta  author: Javier Chocano, 2001. For Windows
emuzwin EmuZWin   Ver. 2.5   author: Vladimir Kladov,  2004. For Windows

Fuse   Ver. 0.7.0  author: Philip Kendall, 2005. For Unix, Linux, Mac OS
zxspic ZXSP   Ver. zxsp_qt-0.7.1 Author: Guenter Voigk, 1999. For Linux
xzxpro XZX-Pro   Ver.4.5 Author: Erik Kunze 2005, For Linux, Sparc, PPC, older V. for Windows

X128   Ver. 0.8s  Author: James McKay 1997. For DOS

FBZX   Ver 1.3 Author: Sergio Costas Rodriguez 2004. For Linux
et/specemu
SpecEmu   Version 2.4beta, Author: Woody, 2005. For Windows
wz80.gif
Win Z80   Version 4.00 , Author: Gerton Lunter, 1999. For Windows & DOS
et/rs.gif
RealSpectrum   Version 0.97.23 , Author: Ramsoft staff,  2004. For Windows & DOS
et/hotj.png
Qaop   Version 1.1 , Author: Jan Bobrowsky,  2005. For Java - test it online!
et/sep.png
Spectrum Anywhere   Version 1.0 , Author: Jaan Cid,  2003. for Pocket PC, Windows CE
et/eighty1ico.png
EightyOne   Version 0.43 T.b , Author: Michael D Wynne,  2006. for Windows

   Test config: AMD XP 2000, 512 MB, Win XP SP1, Win 98SE, Linux  Mandriva 10.2.  Some tests are made on P200 MMX with 48 MB, Win 98SE. Additional tests on P4 2.8 GHz, Win XP SP2 & Siemens Pocket L00X 600.
Overview of emulators
Name
P
r
i
c
e
O
S
V
E
R
1
2
8
+
3
T
A
P
T
Z
X
S
N
A
Z
8
0
W
A
V
C
S
W

 

R
Z
X
A.
R
E
C
V.
R
E
C
S
C
R
P
O
K
E
D
E
B
U
G
C
.
R
O
M
M
U
L
T
C
I
F

1
I
S
S
2
J
O
Y
C
E
F
F
D
O
C

ASpectrum F L,W 0.1.8 + + + - + + - -   - - - + -   - - - - - - 2
AllSpec F L,W ? - - - - + - - -   - - - + + - - - - - - - 0
Delphi Spec F W 0.3 + - - - + + - -   - - - - - - + - - - - 8 1
DSP F W 0.4 + - + - + + - -   - - - + + - - - - + - 5 2
EightyOne F W 0.43 + + + + + + + -   - - - + - + + C + + -   2
EMUZ F D ? + - - - + +       - - - - + + - - - - -   1
EmuZWin F W 2.7 + - + + + +       + + - + + + + C + - + 8/3 3
Es.pectrum F W 0.6b + + + + + + - -   - - - + - + - C - +   - 2
FBZX F L 1.3 + + + + - + - -   - - - - + - - - + + -   3
Fuse F L,M 0.7.0 + + + + + + +     + - - + + + + C - +   /5 5
Glukalka F L   + - + + + + - -   - + - - - - - - - - - 6 3
JPP F D 1.0 - - - - + - - -   - - - - - - + - - - -   4
Klive F W 1.1 + + + + + + + -   - - - + + - - C - +   /9 3
M.E.S.S. F W 1.01 + + - - + + - -   - - - + - - + - - -     4
Qaop F J 1.2 - - + - + + - -   - - - - - - + sup + - - 8 4
RealSpectrum F D,W 1.4b + + + + + + + +   + + + + + + + sup + + + /4 5
SpecEmu F W 2.4 + + + + + + + +   - + + + + + + sup - + - /7 0
Spectaculator 30$ W 6.25 + + + + + +       + + + + + + + sup + + + /8 5
Spectemu F L 0.84 - - + - + + - -   - - - - - - - - - - - - 4
SpectrumAnyWhere F W,P 1.1 - - + + + + - -   - - - - - - - - - - - 9 0
Spin F W 0.6b + + + + + + + +   + + + + + + + sup + + + 5/5 3
vbSpec F W 1.8 + - + + + + - -   - - - + + - + - - - -   0
Warajevo F D 2.51 + + + - + +   -   - - - + + + + - + - -   5
Win Z80 F W,D 4.0 + - + + + + + -   - + + + + + + - + + - 10 5
WinZX32 F W 0.1 + - - - + + - -   - - - - - - + - - - - 8 0
X128 F D 0.84 + + + + + + - -   - - - + - - + - - + -   4
XZX-Pro S L+ 4.5 + + + + + + - -   - + - + - - - - + +     1
YaSe F D 0.8a + - + - + + - -   + - - +   + - - + - - - 4
ZX32 F W 2.0b + + + + + + - -   - - - - + - + - - + - 4 5
ZXSP-QT F L 0.71 + - + - + + - -   - - - - - - - - + + -   3
ZXSpectr F D 3.1b - - + - - - - -   - - - + + + - - - + -   5
 
   Legend: F - freeware, S - shareware. D - Dos, L - Linux, W - Windows, M - Mac OS, J - Java, P - Pocket.    C - Close
  In table are only serious emulators, mostly newer ones. Some famous oldies are here too. Will be not V <0.1's, 'smallest' and similar.
  CEFF: Code efficiency - scale 1-10. After / is value for multicolor mode. Win Z80 is fastest, on P200 it can run with 2000% speed. From newer, multicolor capable emu's Klive is best, it can reach 5000% speed on 2 GHz machine, with pretty accurate multicolor emulation. But much depends from video card, screen size, OS, etc.
  

Explanation of used terms in emulator tests:
    Issue 2: old version of Spectrum (1983). Keyboard port has some slight differences to later models. There is only couple program which requires Issue 2 emulation - Abu Simbel Profanation, Rasputin 48K....  
  Contended memory: called also 'multicolor emulation' - there are some slowdowns when CPU accessing part of memory where framebuffer (display RAM) is. It is quite complex, but best emulators emulate it well. For average user it means that then some fancy border and multicolor (more than 2 colors in one 8x8 pix. block) demos and effects will look exactly as on Real Spectrum. Example is countdown in Starion, where we have big digits, spread in border. Maybe best demo is MDA_DEMO. I made long time ago program BBG (border bar generator) for testing it. There are separate versions for 48K & for 128K Speccy, later is in Z80 format because of problems with TAP load by some emulators (contention changes from some reason). It must show correct standard TV bar in whole screen area, including border:   bbgbre

Downloads:
   WinZ80 from 1999, but still one of best emulators. Recommended for Win98, slower computers. Full, free version: Download WinZ80
Specemu by Woody - made 100% in assembler, good and new emulator, even for slower machines: Download Specemu 2.4

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   Copyright:  Pera Putnik 2005, 2006

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