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benchmarks.txt
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benchmarks.txt
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BM1
10 S=0
20 X=0
30 FOR I=1 TO 1000
40 S=S+X*X
50 X=X+0.00123
60 NEXT I
70 PRINT S,X
80 END
3.9 seconds on Z80 BBC BASIC (CP/M), 10MHz Z80
32 seconds in C64 WinVice emulator.
29 sec in C64 FrodoSC emulator.
4 seconds on VM65 with GD OFF, on PC1 (*)
4.5 seconds on VM65 with GD ON, on PC1 (*)
5 seconds on VM65 with GD OFF, on PC2 (*)
5 seconds on VM65 with GD ON, on PC2 (*)
*) See NOTES.
------------------------------------------------------
BM2
130 PRINT "BM2"
140 FOR N=1 TO 1000
150 FOR K=2 TO 500
160 M=N/K
170 L=INT(M)
180 IF L=0 THEN 230
190 IF L=1 THEN 220
200 IF M>L THEN 220
210 IF M=L THEN 240
220 NEXT K
230 PRINT N
240 NEXT N
250 PRINT "E"
260 END
5 min 20 sec on Z80 BBC BASIC (CP/M), 10MHz Z80
19 min 52 sec on C64 WinVice emulator
2 min 44 sec on VM65 with GD OFF on PC1 (*) at ??? % (**)
3 min 15 sec on VM65 with GD ON on PC1 at ??? %
3 min 18 sec on VM65 with GD OFF on PC2 (*) at 486 %
3 min 33 sec on VM65 with GD ON on PC2 at 478 % (**)
*), **) See NOTES.
------------------------------------------------------
BM3
10 LET W=500:DIM F(W):LET P=1:LET A=3
20 LET F(P)=A:LET P=P+1:IF P>W THEN STOP
30 LET A=A+2:LET X=1
40 LET S=A/F(X):IF S=INT(S) THEN 30
50 LET X=X+1:IF X<P AND F(X)*F(X)<=A THEN 40
60 GOTO 20
System CPU Time [sec]
----------------------------------------------------
Acorn Electron 2.0MHz 6502 138
Amstrad CPC464 4.0MHz Z80A 140
Commodore C64 1.0MHz 6510 254
Commodore Plus/4 1.0 MHz 8501 267
Tandy 64K CoCo 2 0.895MHz 6809E 271
Atari 800XL 1.8MHz 6502 316
Sinclair Spectrum +3 3.55MHz Z80A 388
VM65 GD OFF Emulated 6502 42
VM65 GD ON Emulated 6502 46
------------------------------------------------------
BM4
Primes generator, BASIC benchmark - original code from BYTE Volume 6
Issue 9.
1 SIZE=8190
2 DIM FLAGS(8191)
3 PRINT "Only 1 iteration"
5 COUNT=0
6 FOR I=0 TO SIZE
7 FLAGS(I)=1
8 NEXT I
9 FOR I=0 TO SIZE
10 IF FLAGS(I)=0 THEN 18
11 PRIME=I+I+3
12 K=I+PRIME
13 IF K>SIZE THEN 17
14 FLAGS(K)=0
15 K=K+PRIME
16 GOTO 13
17 COUNT=COUNT+1
18 NEXT I
19 PRINT COUNT," PRIMES"
Results:
VM65 - 57 seconds with GD OFF
VM65 - 62 seconds with GD ON
------------------------------------------------------
BM5
Primes generator, BASIC benchmark, based on above code.
10 S=8190: DIM F(8191): N=0
20 FOR I=0 TO S: F(I)=1: NEXT I
30 FOR I=0 TO S: IF F(I)=0 THEN 80
40 P=I+I+3: K=I+P
50 IF K>S THEN 70
60 F(K)=0: K=K+P: GOTO 50
70 N=N+1: PRINT P;" ";
80 NEXT I
90 PRINT: PRINT N;" PRIMES": END
Results:
VM65 - 55 seconds with GD OFF
VM65 - 60 seconds with GD ON
------------------------------------------------------
NOTES:
*)
PC1 stats:
Type: Desktop
CPU: 2.49 GHz (64-bit Quad-core Q8300)
RAM: 4,060 MB
OS: Windows 10 Pro (no SP) [6.2.9200]
PC2 stats:
Type: Laptop
CPU: 2.3 GHz (64-bit Quad-core i5-6300HQ)
RAM: 15.9 GB
OS: Win 10 Home.
**)
Emulation speed is measured inside emulator with 1 MHz CPU as a reference.
In other words 100% speed is achieved when emulator executes 1,000,000 cycles
in 1 second. Measurements are taken at the end of execution. Each time the
average of previous measurements and current speed measurement result are
summed together and divided by 2 to provide continuous calculation of average
emulation speed in a single session.
Executing 6502 code with no memory mapped devices enabled shows emulation
speed ~645 % (PC1) or ~470 % (PC2).
Emulation speed will likely decrease with # of enabled I/O devices and
with # of enabled debugging facilities (e.g.: op-code execute history),
but this depens on the PC specs and the current load on the system.
With a graphics demo program modified to run in a continuous loop with char
I/O enabled, graphics device enabled and actively used, op-code execute
history disabled, I'm getting a decent performance of 407% on PC1.
Note that all above benchmarks were ran with op-code execute history
disabled and character I/O emulation enabled unless specified otherwise.
**)
Each place where results are preceeded with ??? they are outdated and
tests must be repeated due to changes in code.