Bitlash Command Reference

Here is an alphabetical reference list of Bitlash commands. (See also Bitlash functions.)

expression evaluation

If you type a "naked expression" it will be evaluated, and any side effects like function calls and function executions will happen, but nothing is printed unless you say so using print. For example:

> d13=1; delay(125); d13=0
>

Your code is executed (d13 goes high for 125 ms), but all you see on the console is the command prompt after it's done.

boot: restart the arduino

Resets the Arduino. On restart, the startup function will run, if one is present.

function funcname { stmt; ...; stmt;}

Defines a new Bitlash Function to be stored in EEPROM.

Note: Earlier versions of Bitlash defined macros using a different syntax.

Bitlash functions have their own section.

> function blip {d13=!d13;}
> ls
function blip {d13=!d13;}
> rm blip
> ls
>

help: display some onboard help text

Help displays a short help message that can be helpful if you forget the name of a command or function. It also displays a list of your functions via 'ls'.

if (expr) {stmt;...; stmt;} [else {stmt;stmt;...; stmt;}]

The while and if commands have their own section.

ls

List all the functions stored in EEPROM.

> function blip {d13=!d13;}
> ls
function blip {d13=!d13};

peep: print a map of eeprom

Peep prints a map of eeprom usage. This can help you see how full your EEPROM is, and whether you have fragmented free space.

> peep
E000:  foo\ prin  t #4 :".^  ",\b lip\  d13= !d13  \cc\ ^^^\  t13\ d13=  !d13 ;sno  oze  100\
E040:  b0\b lip;  snoo ze(i  *i); if +  +i>m :i=-  m\st artu  p\ru n t1  3\al fa\a  bcde fghi
E080:  jklm nopq  rstu vwxy  z\cl s\pr  int  #4:"  xfe^ ",\.  .... ....  .... ....  .... ....
E0C0:  .... ....  .... ....  .... ....  .... ....  .... ....  .... ....  .... ....  .... ....
E100:  .... ....  .... ....  .... ....  .... ....  .... ....  .... ....  .... ....  .... ....
E140:  .... ....  .... ....  .... ....  .... ....  .... ....  .... ....  .... ....  .... ....
E180:  .... ....  .... ....  .... ....  .... ....  .... ....  .... ....  .... ....  .... ....
E1C0:  .... ....  .... ....  .... ....  .... ....  .... ....  .... ....  .... ....  .... ....

Note that the "E000" address is actually EEPROM address 0000. Subtract 0xe000 from the addresses shown.

print [#pin:] [expr], -- print

In its simplest form: print foo,bar will get you started. But print has a lot of options, so please see the section on Printing for details.

ps: 'process status' -- print a list of running background functions

Ps shows a list of running background functions.

> run t13
> ps
0: t13

rm: delete a function from eeprom

> function blip {d13=!d13;}
> ls
function blip {d13=!d13;}
> rm blip
> ls
>

Use "rm *" to erase the whole EEPROM.

run: run a function in the background

See the section on Background functions for details.

> run t13,125
> ps
0: t13

stop tasknum | stop | stop *

Stop a background task by number, stop the current task, or stop all tasks.

> run t13
> ps
0: t13
> stop 0
> ps
>

switch (expr) {stmt0; stmt1; ...; stmtN;}

The switch statement is described in Conditionals.

while (expr) {stmt;...; stmt;}

The while and if statements have their own section.