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proc ulam1 {n} {
set max $n
while {$n != 1} {
if {$n > $max} {
set max $n
}
if {$n % 2} {
set n [expr {3 * $n + 1}]
} else {
set n [expr {$n / 2}]
}
}
return $max
}
set i 0
puts [time {ulam1 [incr i]} 10000]
regsub -all {\#[^\n]*} {
{load n} # max
{dup} # max n
{jump start} # max n
{label loop} # max n
{over 1} # max n max
{over 1} # max n max n
{ge} # man n max>=n
{jumpTrue skip} # max n
{reverse 2} # n max
{pop} # n
{dup} # n n
{label skip} # max n
{dup} # max n n
{push 2} # max n n 2
{mod} # max n n%2
{jumpTrue odd} # max n
{push 2} # max n 2
{div} # max n/2 -> max n
{jump start} # max n
{label odd} # max n
{push 3} # max n 3
{mult} # max 3*n
{push 1} # max 3*n 1
{add} # max 3*n+1
{label start} # max n
{dup} # max n n
{push 1} # max n n 1
{neq} # max n n>1
{jumpTrue loop} # max n
{pop} # max
} {} code
proc ulam2 n [list tcl::unsupported::assemble $code]
set i 0
puts [time {ulam2 [incr i]} 10000]
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