// These are all the currently working (i hope) built in routines

read		Gets input from a device
readln		similar to read but gets a line
write		sends output to a device
writeln		similar to write but appends end-of-line
abs		returns the absolute value
arctan		returns the arctan of a number
chr		returns the char value of a number
cos		returns the cosine of a number
eof		returns true if at end of file, else false
eoln		returns true if at end of line, else false
exp		returns the exp of a number
ln		returns the natural log of a number
odd		returns true if odd
ord		returns the ord
pred		returns the pred of a scalar
round		round a number to the nearest integer
sin		returns the sine of a number
sqr		returns the sqaure of a number
sqrt		returns the square root of a number
succ		returns the successor to a scalar
trunc		returns the integer part of a number
addr		returns the address of a variable
new		creates and allocates a new variable
dispose		destroys and deallocates a new variable

// Sphere extension
time		returns system time

