block-200.fth

( benchmarks / tests )

find bm1 loaded?
test-if
'n' swapif
drop 'y'then
emit '.' emit ;
if-elseif
z" yes" else z" no"then
ztype '.' emit ;
cr 0 test-if 1 test-if    see test-if cr
 cr 0 if-else 1 if-else    see if-else cr
 ..
dup . ;
[[ cr 5 for i . ." -- " 4 for i . next ." -- " next ]]
 [[ cr 10 begin .. 1- dup      while drop ]]
 [[ cr  0 begin .. 1+ dup 10 = until drop ]]
elapsed
timer swap - ."  (%d usec)" ;   mil
1000 dup * * ;
t0
1 drop ;                             t1
1 drop t0 ;
fib
1- dup 2 < if drop 1 exit then dup fib swap 1- fib + ;
bm1
cr dup ." bm1: empty loop: (%d)"     timer swap for next elapsed ;
bm2
cr dup ." bm2: decrement loop: (%d)" timer swap begin 1- -while drop elapsed ;
bm3
cr dup ." bm3: call loop: (%d)"      timer swap for t0 next elapsed ;
bm4
cr dup ." bm4: 2 call loop: (%d)"    timer swap for t1 next elapsed ;
bm5
cr dup ." bm5: fib (%d) ... " timer swap fib . elapsed ;
bmk
1000 mil bm1 ;
go
 250 mil dup dup bmk bm2 bm3 bm4  38 bm5 cr ;
go cr
 cell var xxx
 see xxx cr cr
 12345 xxx !
 xxx @ ." -xxx created, (%d)-%n"
 xxx @ const yyy
 yyy ." -yyy created, (%d)-" cr
 see yyy cr
t0
xxx @ yyy = ." const/var: "if
." PASS" exitthen
." FAIL!" ; t0