AtariWiki V3: Forth Benchmarks

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This page (revision-48) was last changed on 03-Feb-2023 16:21 by Stefan Haubenthal

This page was created on 04-Dec-2010 13:59 by Carsten Strotmann

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Forth Benchmarks

VolksForth

Outgoing links

Forth Benchmarks

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At line 3 changed 347 lines

Below is a collection of some Benchmarks for Forth83 systems like VolksForth.

I found most of these benchmarks on [comp.lang.forth|http://groups.google.com/group/comp.lang.forth], [Hans Bzemers|http://thebeezspeaks.blogspot.com/] [4th|http://www.xs4all.nl/~thebeez/4tH/foldtree.html] and Marcel Hendrix [benchmark collection|http://home.iae.nl/users/mhx/monsterbench.html]

[{TableOfContents }]

!! Results

|| Name || System || Forth || Benchmark || Time (sec/round) ||

!! Benchme Helper

{{{

: beep ( -- ) \ emits an audible beep signal

7 con! ; \ this is hardware and implementation dependent

: benchme ( xt n -- ) \ executes the word with the execution token 'xt' n-times

dup >r \ save number of iterations

beep \ signal of benchmark start

0 do dup execute loop \ execute word. word must have a neutral stack effect

beep \ signal benchmark end

cr r> . ." Iterations." cr \ emit message

;

}}}

!!Integer Calculations

{{{

32000 constant intMax

variable intResult

: DoInt

1 dup intResult dup >r !

begin

dup intMax <

while

dup negate r@ +! 1+

dup r@ +! 1+

r@ @ over * r@ ! 1+

r@ @ over / r@ ! 1+

repeat

r> drop drop

;

}}}

!!Fibonacci 1

{{{

: fib1 ( n1 -- n2 )

dup 2 < if drop 1 exit then

dup 1- recursive

swap 2- recursive + ;

: fib1-bench 20 0 do i fib1 drop loop ;

}}}

!!Fibonacci 2

{{{

: fib2 ( n1 -- n2 )

0 1 rot 0 ?do

over + swap loop

drop ;

: fib2-bench 20 0 do i fib2 drop loop ;

}}}

!!Forth Nesting Benchmark

{{{

\ Forth nesting (NEXT) Benchmark cas20101204

: bottom ;

: 1st bottom bottom ; : 2nd 1st 1st ; : 3rd 2nd 2nd ;

: 4th 3rd 3rd ; : 5th 4th 4th ; : 6th 5th 5th ;

: 7th 6th 6th ; : 8th 7th 7th ; : 9th 8th 8th ;

: 10th 9th 9th ; : 11th 10th 10th ; : 12th 11th 11th ;

: 13th 12th 12th ; : 14th 13th 13th ; : 15th 14th 14th ;

: 16th 15th 15th ; : 17th 16th 16th ; : 18th 17th 17th ;

: 19th 18th 18th ; : 20th 19th 19th ; : 21th 20th 20th ;

: 22th 21th 21th ; : 23th 22th 22th ; : 24th 23th 23th ;

: 25th 24th 24th ;

: 32million CR ." 32 million nest/unnest operations" 25th ;

: 1million CR ." 1 million nest/unnest operations" 20th ;

CR .( enter 1million or 32million )

}}}

!!Forth Memory Move Benchmark

{{{

\ Forth Memory Move Benchmark cas 20101204

8192 CONSTANT bufsize

VARIABLE buf1 HERE bufsize 1+ allot BUF1 !

VARIABLE buf2 HERE bufsize 1+ allot BUF2 !

: test-CMOVE 49 0 DO BUF1 @ BUF2 @ bufsize CMOVE LOOP ;

: test-CMOVE> 49 0 DO BUF2 @ BUF1 @ bufsize CMOVE> LOOP ;

: test-MOVE> 49 0 DO BUF1 @ BUF2 @ bufsize MOVE LOOP ;

: test-<MOVE 49 0 DO BUF2 @ BUF1 @ bufsize MOVE LOOP ;

: move-bench test-CMOVE test-CMOVE> test-MOVE> test-<MOVE ;

}}}

!!count bits in byte

{{{

\ Forth Benchmark - count bits in byte cas 20101204

VARIABLE cnt

: countbits ( uu -- #bits )

cnt off

8 0 DO dup %01010101 and cnt +!

LOOP drop

0 cnt 4 bounds DO i C@ + LOOP ;

: bench5

8192 DO I countbits . LOOP ;

}}}

!!Sieve Benchmark

{{{

\ Sieve Benchmark -- the classic Forth benchmark cas 20101204

8192 CONSTANT SIZE VARIABLE FLAGS 0 FLAGS ! SIZE ALLOT

: DO-PRIME

FLAGS SIZE 1 FILL ( set array )

0 ( 0 COUNT ) SIZE 0

DO FLAGS I + C@

IF I DUP + 3 + DUP I +

BEGIN DUP SIZE <

WHILE 0 OVER FLAGS + C! OVER + REPEAT

DROP DROP 1+

THEN

LOOP

. ." Primes" CR ;

}}}

!!Greatest Common Divisor

{{{

\ gcd - greatest common divisor cas 20101204

: gcd ( a b -- gcd )

OVER IF

BEGIN

DUP WHILE

2DUP U> IF SWAP THEN OVER -

REPEAT DROP ELSE

DUP IF NIP ELSE 2DROP 1 THEN

THEN ;

: gcd1-bench 100 0 DO

100 0 DO j i gcd drop loop

loop ;

}}}

{{{

\ another gcd O(2) runtime speed cas 20101204

: gcd2 ( a b -- gcd )

2DUP D0= IF 2DROP 1 EXIT THEN

DUP 0= IF DROP EXIT THEN

SWAP DUP 0= IF DROP EXIT THEN

BEGIN 2DUP -

WHILE 2DUP < IF OVER -

ELSE SWAP OVER - SWAP

THEN

REPEAT NIP ;

: gcd2-bench 100 0 DO

100 0 DO j i gcd2 drop loop

loop ;

}}}

!!Takeuchi

{{{

( takeuchi benchmark in volksForth Forth-83 )

( see http://en.wikipedia.org/wiki/Tak_(function) )

: 3dup 2 pick 2 pick 2 pick ;

: tak ( x y z -- t )

over 3 pick < NEGATE IF nip nip exit then

3dup rot 1- -rot recursive >r

3dup swap 1- -rot swap recursive >r

1- -rot recursive

r> swap r> -rot recursive ;

: takbench ( -- )

0 &10000 0 DO DROP &18 &12 6 tak LOOP ;

}}}

!!simple 6502 emulator

{{{

\ A simple 6502 emulattion benchmark cas

\ only 11 opcodes are implemented. The memory layout is:

\ 2kB RAM at 0000-07FF, mirrored throughout 0800-7FFF

\ 16kB ROM at 8000-BFFF, mirrored at C000

decimal

create ram 2048 allot : >ram $7FF and ram + ;

create rom 16384 allot : >rom $3FFF and rom + ;

\ 6502 registers

variable reg-a variable reg-x variable reg-y

variable reg-s variable reg-pc : reg-pc+ reg-pc +! ;

\ 6502 flags

variable flag-c variable flag-n variable cycle

variable flag-z variable flag-v : cycle+ cycle +! ;

hex

: w@ dup c@ swap 1+ c@ 100 * or ;

: cs@ c@ dup 80 and if 100 - then ;

: read-byte ( address -- )

dup 8000 < if >ram c@ else >rom c@ then ;

: read-word ( address -- )

dup 8000 < if >ram w@ else >rom w@ then ;

: dojmp ( JMP aaaa )

reg-pc @ >rom w@ reg-pc ! 3 cycle+ ;

: dolda ( LDA aa )

reg-pc @ >rom c@ ram + c@ dup dup reg-a !

flag-z ! 80 and flag-n ! 1 reg-pc+ 3 cycle+ ;

: dosta ( STA aa )

reg-a @ reg-pc @ >rom c@ ram + c! 1 reg-pc+ 3 cycle+ ;

: dobeq ( BEQ <aa )

flag-z @ 0= if reg-pc @ >rom cs@ 1+ reg-pc+ else 1 reg-pc+ then 3 cycle+ ;

: doldai ( LDA #aa )

reg-pc @ >rom c@ dup dup reg-a ! flag-z ! 80 and flag-n !

1 reg-pc+ 2 cycle+ ;

: dodex ( DEX )

reg-x @ 1- FF and dup dup reg-x ! flag-z ! 80 and flag-n !

2 cycle+ ;

: dodey ( DEY )

reg-y @ 1- ff and dup dup reg-y ! flag-z ! 80 and flag-n !

2 cycle+ ;

: doinc ( INC aa )

reg-pc @ >rom c@ ram + dup c@ 1+ FF and dup -rot swap c! dup

flag-z ! 80 and flag-n ! 1 reg-pc+ 3 cycle+ ;

: doldy ( LDY aa )

reg-pc @ >rom c@ dup dup reg-y ! flag-z ! 80 and flag-n !

1 reg-pc+ 2 cycle+ ;

: doldx ( LDX #aa )

reg-pc @ >rom c@ dup dup reg-x ! flag-z ! 80 and flag-n !

1 reg-pc+ 2 cycle+ ;

: dobne ( BNE <aa )

flag-z @ if reg-pc @ >rom cs@ 1+ reg-pc+ else 1 reg-pc+ then

3 cycle+ ;

: 6502emu ( cycles -- )

begin cycle @ over < while

reg-pc @ >rom c@ 1 reg-pc+

dup 4C = if dojmp then dup A5 = if dolda then

dup 85 = if dosta then dup F0 = if dobeq then

dup D0 = if dobne then dup A9 = if doldai then

dup CA = if dodex then dup 88 = if dodey then

dup E6 = if doinc then dup A0 = if doldy then

A2 = if doldx then repeat drop ;

create testcode

A9 c, 00 c, \ start: LDA #0

85 c, 08 c, \ STA 08

A2 c, 0A c, \ LDX #10

A0 c, 0A c, \ loop1: LDY #10

E6 c, 08 c, \ loop2: INC 08

88 c, \ DEY

D0 c, FB c, \ BNE loop2

CA c, \ DEX

D0 c, F6 c, \ BNE loop1

4C c, 00 c, 80 C, \ JMP start

: init-vm 13 0 do i testcode + c@ i rom + c! loop

0 cycle ! 8000 reg-pc ! ;

: bench6502 100 0 do init-vm &6502 6502emu loop ;

}}}

the Forth Benchmarks have been moved to its own dedicated website at [https://theultimatebenchmark.org|https://theultimatebenchmark.org]

Pagination: Previous 1 23all (Total items: 48 )

Version	Date Modified	Size	Author	Changes ...	Change note
48	03-Feb-2023 16:21	0.163 kB	Stefan Haubenthal	to previous	typo
47	01-Jan-2021 11:29	0.164 kB	Carsten Strotmann	to previous \| to last
46	14-Dec-2014 22:43	36.466 kB	Carsten Strotmann	to previous \| to last
45	14-Dec-2014 22:42	36.605 kB	Carsten Strotmann	to previous \| to last
44	01-Nov-2014 18:28	36.568 kB	Carsten Strotmann	to previous \| to last
43	01-Nov-2014 18:23	36.126 kB	Carsten Strotmann	to previous \| to last
42	01-Nov-2014 18:22	36.126 kB	Carsten Strotmann	to previous \| to last	Results VCFB 2014
41	22-Sep-2014 21:43	34.05 kB	Carsten Strotmann	to previous \| to last