*

  Data:  nn-n
  Addr:  -
  Float: -

Multiply `n1` by `n2` and return the result.

Class Handler: class:primitive | Namespace: global | Interface Layer: all

Example #1:

    #2 #6 *
    #-1 #100 *

----------------------------------------------------------------

+

  Data:  nn-n
  Addr:  -
  Float: -

Add `n1` to `n2` and return the result.

Class Handler: class:primitive | Namespace: global | Interface Layer: all

Example #1:

    #1 #2 + 

----------------------------------------------------------------

,

  Data:  n-
  Addr:  -
  Float: -

Store the specified value into the memory at `here` and increment `Heap` by 1.

Class Handler: class:word | Namespace: global | Interface Layer: all

Example #1:

    $a , $b , $c , #0 ,

----------------------------------------------------------------

-

  Data:  nn-n
  Addr:  -
  Float: -

Subtract `n1` from `n2` and return the difference.

Class Handler: class:primitive | Namespace: global | Interface Layer: all

Example #1:

    #2 #1 -
    #-10 #3 -

----------------------------------------------------------------

---reveal---

  Data:  -
  Addr:  -
  Float: -

Switch to the exposed (public) portion of a lexical namespace.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

-eq?

  Data:  nn-f
  Addr:  -
  Float: -

Compare two values for inequality. Returns `TRUE` if they are not equal or `FALSE` otherwise.

Class Handler: class:primitive | Namespace: global | Interface Layer: all

Example #1:

    #1 #2 -eq?
    $a $b -eq?

----------------------------------------------------------------

-if

  Data:  fq-
  Addr:  -
  Float: -

Execute the quotation if the flag is `FALSE`.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

/

  Data:  mn-o
  Addr:  -
  Float: -

Divide `m` by `n` and return the result.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

/mod

  Data:  nm-op
  Addr:  -
  Float: -

Divide `n` by `m` and return the result and remainder.

Class Handler: class:primitive | Namespace: global | Interface Layer: all

----------------------------------------------------------------

0;

  Data:  n-n || n-
  Addr:  -
  Float: -

If `n` is zero, drop `n` and exit the current word. If non-zero, leave `n` alone and allow execution to continue.

Class Handler: class:macro | Namespace: global | Interface Layer: all

----------------------------------------------------------------

;

  Data:  -
  Addr:  -
  Float: -

End the current definition.

Class Handler: class:macro | Namespace: global | Interface Layer: all

----------------------------------------------------------------

?dup

  Data:  n-nn || n-n
  Addr:  -
  Float: -

Duplicate top value on stack if not zero. If zero, do nothing.

Class Handler: class:word | Namespace: global | Interface Layer: all

Example #1:

    #1 ?dup
    #0 ?dup

----------------------------------------------------------------

ASCII:ACK

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:BEL

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:BS

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:CAN

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:CR

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:DC1

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:DC2

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:DC3

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:DC4

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:DEL

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:DLE

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:EM

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:ENQ

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:EOT

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:ESC

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:ETB

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:ETX

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:FF

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:FS

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:GS

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:HT

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:LF

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:NAK

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:NUL

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:RS

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:SI

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:SO

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:SOH

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:SPACE

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:STX

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:SUB

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:SYN

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:US

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

ASCII:VT

  Data:  -n
  Addr:  -
  Float: -

Constant. Refers to specific ASCII code.

Class Handler: class:data | Namespace: ASCII | Interface Layer: all

----------------------------------------------------------------

Compiler

  Data:  -a
  Addr:  -
  Float: -

Variable. Holds the compiler state. If TRUE, the compiler is active. If FALSE, it is not.

Class Handler: class:data | Namespace: global | Interface Layer: all

----------------------------------------------------------------

Dictionary

  Data:  -a
  Addr:  -
  Float: -

Variable. Holds a pointer to the most recent dictionary header.

Class Handler: class:data | Namespace: global | Interface Layer: all

----------------------------------------------------------------

EOM

  Data:  -n
  Addr:  -
  Float: -

Constant. Returns the last addressable memory address.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

FALSE

  Data:  -n
  Addr:  -
  Float: -

Returns `0`, the value used to indicate a FALSE result.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

FREE

  Data:  -n
  Addr:  -
  Float: -

Returns the number of cells available to your application. This is the amount of memory, less the already consumed portion and buffers mapped for RETRO's internal use.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

Heap

  Data:  -a
  Addr:  -
  Float: -

Variable. Holds the address of the next available cell.

Class Handler: class:data | Namespace: global | Interface Layer: all

----------------------------------------------------------------

RewriteUnderscores

  Data:  -a
  Addr:  -
  Float: -

Variable. When set to `TRUE`, RETRO will replace underscores in strings with spaces. When `FALSE`, RETRO does not.

Class Handler: class:data | Namespace: global | Interface Layer: all

----------------------------------------------------------------

STRINGS

  Data:  -a
  Addr:  -
  Float: -

Return the address of the start of the temporary string pool.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

ScopeList

  Data:  -a
  Addr:  -
  Float: -

Variable. This holds some information used by `{{` and `}}`.

Class Handler: class:data | Namespace: global | Interface Layer: all

----------------------------------------------------------------

TRUE

  Data:  -n
  Addr:  -
  Float: -

Returns `-1`, the value used to indicate a TRUE result.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

TempStringMax

  Data:  -a
  Addr:  -
  Float: -

Variable. Holds the maximum length of a temporary string.

Class Handler: class:data | Namespace: global | Interface Layer: all

----------------------------------------------------------------

TempStrings

  Data:  -a
  Addr:  -
  Float: -

Variable. Holds the number of temporary strings.

Class Handler: class:data | Namespace: global | Interface Layer: all

----------------------------------------------------------------

Version

  Data:  -a
  Addr:  -
  Float: -

Variable. This stores the version number.

Class Handler: class:data | Namespace: global | Interface Layer: all

----------------------------------------------------------------

[

  Data:  -
  Addr:  -
  Float: -

Begin a quotation.

Class Handler: class:macro | Namespace: global | Interface Layer: all

----------------------------------------------------------------

]

  Data:  -
  Addr:  -
  Float: -

End a quotation.

Class Handler: class:macro | Namespace: global | Interface Layer: all

----------------------------------------------------------------

again

  Data:  -
  Addr:  -
  Float: -

Close an unconditional loop. Branches back to the prior `repeat`.

Class Handler: class:macro | Namespace: global | Interface Layer: all

----------------------------------------------------------------

allot

  Data:  n-
  Addr:  -
  Float: -

Allocate the specified number of cells from the `Heap`.

Class Handler: class:word | Namespace: global | Interface Layer: all

Example #1:

    'Buffer d:create  #100 allot

----------------------------------------------------------------

and

  Data:  nm-o
  Addr:  -
  Float: -

Perform a bitwise AND operation between the two provided values.

Class Handler: class:primitive | Namespace: global | Interface Layer: all

----------------------------------------------------------------

as{

  Data:  -f
  Addr:  -
  Float: -

Begin an assembly section.

Class Handler: class:macro | Namespace: global | Interface Layer: all

----------------------------------------------------------------

bi

  Data:  xqq-?
  Addr:  -
  Float: -

Execute q1 against x, then execute q2 against a copy of x.

Class Handler: class:word | Namespace: global | Interface Layer: all

Example #1:

    #100 [ #10 * ] [ #10 - ] bi

----------------------------------------------------------------

bi*

  Data:  xyqq-?
  Addr:  -
  Float: -

Execute q1 against x and q2 against y.

Class Handler: class:word | Namespace: global | Interface Layer: all

Example #1:

    #10 #20 [ #2 * ] [ #10 / ] bi*

----------------------------------------------------------------

bi@

  Data:  xyq-?
  Addr:  -
  Float: -

Execute q against x, then execute q against y.

Class Handler: class:word | Namespace: global | Interface Layer: all

Example #1:

    #10 #20 [ #3 * ] bi@

----------------------------------------------------------------

buffer:add

  Data:  n-
  Addr:  -
  Float: -

Append a value to the current buffer.

Class Handler: class:word | Namespace: buffer | Interface Layer: all

----------------------------------------------------------------

buffer:empty

  Data:  -
  Addr:  -
  Float: -

Reset the current buffer to an empty state.

Class Handler: class:word | Namespace: buffer | Interface Layer: all

----------------------------------------------------------------

buffer:end

  Data:  -a
  Addr:  -
  Float: -

Return a pointer to the current end of the active buffer.

Class Handler: class:word | Namespace: buffer | Interface Layer: all

----------------------------------------------------------------

buffer:get

  Data:  -n
  Addr:  -
  Float: -

Remove the last value from the current buffer.

Class Handler: class:word | Namespace: buffer | Interface Layer: all

----------------------------------------------------------------

buffer:preserve

  Data:  q-
  Addr:  -
  Float: -

Save and restore the current buffer before and after executing the specified quote.

Class Handler: class:word | Namespace: buffer | Interface Layer: all

----------------------------------------------------------------

buffer:set

  Data:  a-
  Addr:  -
  Float: -

Assign a new buffer as the current one.

Class Handler: class:word | Namespace: buffer | Interface Layer: all

----------------------------------------------------------------

buffer:size

  Data:  -n
  Addr:  -
  Float: -

Return the number of cells in the buffer.

Class Handler: class:word | Namespace: buffer | Interface Layer: all

----------------------------------------------------------------

buffer:start

  Data:  -a
  Addr:  -
  Float: -

Return the start address of the current buffer.

Class Handler: class:word | Namespace: buffer | Interface Layer: all

----------------------------------------------------------------

bye

  Data:  -
  Addr:  -
  Float: -

Exit RETRO.

Class Handler: class:word | Namespace: global | Interface Layer: rre

----------------------------------------------------------------

c:-consonant?

  Data:  c-f
  Addr:  -
  Float: -

Return TRUE if character is a not consonant or FALSE otherwise.

Class Handler: class:word | Namespace: c | Interface Layer: all

----------------------------------------------------------------

c:-digit?

  Data:  c-f
  Addr:  -
  Float: -

Return TRUE if character is a not numeric digit or FALSE otherwise.

Class Handler: class:word | Namespace: c | Interface Layer: all

----------------------------------------------------------------

c:-lowercase?

  Data:  c-f
  Addr:  -
  Float: -

Return TRUE if character is not lowercase or FALSE otherwise.

Class Handler: class:word | Namespace: c | Interface Layer: all

----------------------------------------------------------------

c:-uppercase?

  Data:  c-f
  Addr:  -
  Float: -

Return TRUE if character is not uppercase or FALSE otherwise.

Class Handler: class:word | Namespace: c | Interface Layer: all

----------------------------------------------------------------

c:-visible?

  Data:  c-f
  Addr:  -
  Float: -

Return TRUE if character is not printable or FALSE otherwise.

Class Handler: class:word | Namespace: c | Interface Layer: all

----------------------------------------------------------------

c:-vowel?

  Data:  c-f
  Addr:  -
  Float: -

Return TRUE if character is not a vowel or FALSE otherwise.

Class Handler: class:word | Namespace: c | Interface Layer: all

----------------------------------------------------------------

c:-whitespace?

  Data:  c-f
  Addr:  -
  Float: -

Return TRUE if character is not whitespace, or FALSE otherwise.

Class Handler: class:word | Namespace: c | Interface Layer: all

----------------------------------------------------------------

c:consonant?

  Data:  c-f
  Addr:  -
  Float: -

Return TRUE if character is a consonant or FALSE otherwise.

Class Handler: class:word | Namespace: c | Interface Layer: all

----------------------------------------------------------------

c:digit?

  Data:  c-f
  Addr:  -
  Float: -

Return TRUE if character is a numeric digit or FALSE otherwise.

Class Handler: class:word | Namespace: c | Interface Layer: all

----------------------------------------------------------------

c:letter?

  Data:  c-f
  Addr:  -
  Float: -

Return TRUE if character is an ASCII letter or FALSE otherwise.

Class Handler: class:word | Namespace: c | Interface Layer: all

----------------------------------------------------------------

c:lowercase?

  Data:  c-f
  Addr:  -
  Float: -

Return TRUE if character is lowercase or FALSE otherwise.

Class Handler: class:word | Namespace: c | Interface Layer: all

----------------------------------------------------------------

c:to-lower

  Data:  c-c
  Addr:  -
  Float: -

Convert character to lowercase equivalent.

Class Handler: class:word | Namespace: c | Interface Layer: all

----------------------------------------------------------------

c:to-string

  Data:  c-s
  Addr:  -
  Float: -

Convert character into a string.

Class Handler: class:word | Namespace: c | Interface Layer: all

----------------------------------------------------------------

c:to-upper

  Data:  c-c
  Addr:  -
  Float: -

Convert character to uppercase equivalent.

Class Handler: class:word | Namespace: c | Interface Layer: all

----------------------------------------------------------------

c:toggle-case

  Data:  c-c
  Addr:  -
  Float: -

Convert an ASCII character to the opposite case.

Class Handler: class:word | Namespace: c | Interface Layer: all

----------------------------------------------------------------

c:uppercase?

  Data:  c-f
  Addr:  -
  Float: -

Return TRUE if character is uppercase or FALSE otherwise.

Class Handler: class:word | Namespace: c | Interface Layer: all

----------------------------------------------------------------

c:visible?

  Data:  c-f
  Addr:  -
  Float: -

Return TRUE if character is printable or FALSE otherwise.

Class Handler: class:word | Namespace: c | Interface Layer: all

----------------------------------------------------------------

c:vowel?

  Data:  c-f
  Addr:  -
  Float: -

Return TRUE if character is a vowel or FALSE otherwise.

Class Handler: class:word | Namespace: c | Interface Layer: all

----------------------------------------------------------------

c:whitespace?

  Data:  c-f
  Addr:  -
  Float: -

Return TRUE if character is whitespace, or FALSE otherwise.

Class Handler: class:word | Namespace: c | Interface Layer: all

----------------------------------------------------------------

call

  Data:  a-
  Addr:  -
  Float: -

Call a function.

Class Handler: class:primitive | Namespace: global | Interface Layer: all

----------------------------------------------------------------

case

  Data:  nmq- || nmq-n
  Addr:  -
  Float: -

If `n` is equal to `m`, drop both and execute the specified quote before exiting the calling word. If not equal, leave `n` on the stack and let execution continue.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

choose

  Data:  fqq-
  Addr:  -
  Float: -

Execute q1 if the flag is `TRUE` or q2 if it is not.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

class:data

  Data:  n- || n-n
  Addr:  -
  Float: -

Class handler for data structures.

Interpret Time:
  Keep the address or value on the stack.

Compile Time:
  Compile the value or address as a literal into the current definition.

Class Handler: class:word | Namespace: class | Interface Layer: all

----------------------------------------------------------------

class:macro

  Data:  a-
  Addr:  -
  Float: -

Class handler for compiler macros (immediate words)

Interpret Time:
  Execute the function at the provided address.

Compile Time:
  Execute the function at the provided address.

Class Handler: class:word | Namespace: class | Interface Layer: all

----------------------------------------------------------------

class:primitive

  Data:  a-
  Addr:  -
  Float: -

Class handler for primitive words (words which map to Nga instructions)

Interpret Time:
  Execute the function.

Compile Time:
  Compile the machine code in the definiton into the current definition.

Class Handler: class:word | Namespace: class | Interface Layer: all

----------------------------------------------------------------

class:word

  Data:  a-
  Addr:  -
  Float: -

Class handler for normal words.

Interpret Time:
  Execute the function at the provided address.

Compile Time:
  Compile a call to the specified address into the current definition.

Class Handler: class:word | Namespace: class | Interface Layer: all

----------------------------------------------------------------

compile:call

  Data:  a-
  Addr:  -
  Float: -

Compile a call to the specified address into the current definition.

Class Handler: class:word | Namespace: compile | Interface Layer: all

----------------------------------------------------------------

compile:jump

  Data:  a-
  Addr:  -
  Float: -

Compile a jump to the specified address into the current definition.

Class Handler: class:word | Namespace: compile | Interface Layer: all

----------------------------------------------------------------

compile:lit

  Data:  n-
  Addr:  -
  Float: -

Compile the code to push a number to the stack into the current definition.

Class Handler: class:word | Namespace: compile | Interface Layer: all

----------------------------------------------------------------

compile:ret

  Data:  -
  Addr:  -
  Float: -

Compile a return instruction into the current definition.

Class Handler: class:word | Namespace: compile | Interface Layer: all

----------------------------------------------------------------

compiling?

  Data:  -f
  Addr:  -
  Float: -

Return `TRUE` if compiler is on or `FALSE` otherwise.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

const

  Data:  ns-
  Addr:  -
  Float: -

Create a constant returning the specified value.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

copy

  Data:  sdl-
  Addr:  -
  Float: -

Copy `l` cells from memory at `s` to the memory at `d`. These should not overlap.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

curry

  Data:  nq-q
  Addr:  -
  Float: -

Bind a value to a function and return a new quote that calls the bound action.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

d

  Data:  n-
  Addr:  -
  Float: -

Inline a numeric value to the current assembly segment.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

d:add-header

  Data:  saa-
  Addr:  -
  Float: -

Create a header. Provide a string (s) for the name, a pointer to the class handler (a1) and a pointer to the word definition (a2) Generally this won't be used directly.

Class Handler: class:word | Namespace: d | Interface Layer: all

----------------------------------------------------------------

d:class

  Data:  d-a
  Addr:  -
  Float: -

Given a dictionary header, return the class field.

Class Handler: class:word | Namespace: d | Interface Layer: all

----------------------------------------------------------------

d:create

  Data:  s-
  Addr:  -
  Float: -

Create a new dictionary header named the specified string. The new header will point to `here` and have a class of `class:data`.

Class Handler: class:word | Namespace: d | Interface Layer: all

----------------------------------------------------------------

d:for-each

  Data:  q-
  Addr:  -
  Float: -

Execute the specified quote once for each header in the dictionary. Before running the quote, this also pushes a pointer to the header onto the stack.

Class Handler: class:word | Namespace: d | Interface Layer: all

----------------------------------------------------------------

d:last

  Data:  -d
  Addr:  -
  Float: -

Return the most recent dictionary header.

Class Handler: class:word | Namespace: d | Interface Layer: all

----------------------------------------------------------------

d:last<class>

  Data:  -a
  Addr:  -
  Float: -

Return a pointer to the class field of the most recent dictionary header.

Class Handler: class:word | Namespace: d | Interface Layer: all

----------------------------------------------------------------

d:last<name>

  Data:  -s
  Addr:  -
  Float: -

Return a pointer to the name field of the most recent dictionary header.

Class Handler: class:word | Namespace: d | Interface Layer: all

----------------------------------------------------------------

d:last<xt>

  Data:  -a
  Addr:  -
  Float: -

Return a pointer to the xt field of the most recent dictionary header.

Class Handler: class:word | Namespace: d | Interface Layer: all

----------------------------------------------------------------

d:link

  Data:  d-a
  Addr:  -
  Float: -

Given a dictionary header, return the link field.

Class Handler: class:word | Namespace: d | Interface Layer: all

----------------------------------------------------------------

d:lookup

  Data:  s-d
  Addr:  -
  Float: -

Lookup the specified name in the dictionary and return a pointer to its dictionary header. This returns zero if the word is not found.

Class Handler: class:word | Namespace: d | Interface Layer: all

----------------------------------------------------------------

d:lookup-xt

  Data:  a-d
  Addr:  -
  Float: -

Lookup the specified address in the dictionary and return a pointer to its dictionary header. This returns zero if the word is not found.

Class Handler: class:word | Namespace: d | Interface Layer: all

----------------------------------------------------------------

d:name

  Data:  d-s
  Addr:  -
  Float: -

Given a dictionary header, return the name field.

Class Handler: class:word | Namespace: d | Interface Layer: all

----------------------------------------------------------------

d:xt

  Data:  d-a
  Addr:  -
  Float: -

Given a dictionary header, return the xt field.

Class Handler: class:word | Namespace: d | Interface Layer: all

----------------------------------------------------------------

data

  Data:  -
  Addr:  -
  Float: -

Change the class of the most recently defined word to `class:data`.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

depth

  Data:  -n
  Addr:  -
  Float: -

Return the number of items on the stack.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

dip

  Data:  nq-n
  Addr:  -
  Float: -

Temporarily remove n from the stack, execute the quotation, and then restore n to the stack.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

does

  Data:  q-
  Addr:  -
  Float: -

Attach an action to the most recently created word. This is used in a manner similar to CREATE/DOES> in traditional Forth.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

drop

  Data:  n-
  Addr:  -
  Float: -

Discard the top value on the stack.

Class Handler: class:primitive | Namespace: global | Interface Layer: all

----------------------------------------------------------------

drop-pair

  Data:  nn-
  Addr:  -
  Float: -

Remove top two items on the stack.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

dump-stack

  Data:  -
  Addr:  -
  Float: -

Display the items on the data stack.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

dup

  Data:  n-nn
  Addr:  -
  Float: -

Duplicate the top item on the stack.

Class Handler: class:primitive | Namespace: global | Interface Layer: all

----------------------------------------------------------------

dup-pair

  Data:  nm-nmnm
  Addr:  -
  Float: -

Duplicate the top two items on the stack.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

eq?

  Data:  nn-f
  Addr:  -
  Float: -

Compare two values for equality. Returns `TRUE` if they are equal or `FALSE` otherwise.

Class Handler: class:primitive | Namespace: global | Interface Layer: all

Example #1:

    #1 #2 eq?
    $a $b eq?

----------------------------------------------------------------

err:notfound

  Data:  -
  Addr:  -
  Float: -

Error handler. Called when a word is not found by `interpret`.

Class Handler: class:word | Namespace: err | Interface Layer: all

----------------------------------------------------------------

f:*

  Data:  -
  Addr:  -
  Float: FF-F

Multiply two floating point numbers, returning the result.

Class Handler: class:word | Namespace: f | Interface Layer: rre

Example #1:

    .3.1415 .22 f:*

----------------------------------------------------------------

f:+

  Data:  -
  Addr:  -
  Float: FF-F

Add two floating point numbers, returning the result.

Class Handler: class:word | Namespace: f | Interface Layer: rre

Example #1:

    .3.1 .22 f:+

----------------------------------------------------------------

f:-

  Data:  -
  Addr:  -
  Float: FF-F

Subtract F2 from F1 returing the result.

Class Handler: class:word | Namespace: f | Interface Layer: rre

Example #1:

    .22.3 .0.12 f:-

----------------------------------------------------------------

f:-eq?

  Data:  -f
  Addr:  -
  Float: FF-

Compare two floating point values for inequality. Returns `TRUE` if they are not equal or `FALSE` otherwise.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:/

  Data:  -
  Addr:  -
  Float: FF-F

Divide floating point value F1 by F2.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:E

  Data:  -
  Addr:  -
  Float: -F

Return the floating point value for Euler's number.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:PI

  Data:  -
  Addr:  -
  Float: -F

Return the floating point value for PI.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:abs

  Data:  -
  Addr:  -
  Float: F-F

Return the absolute value for a floating point value.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:acos

  Data:  -
  Addr:  -
  Float: f-f

Return the arc cosine of a floating point number.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:asin

  Data:  -
  Addr:  -
  Float: f-f

Return the arc sine of a floating point number.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:atan

  Data:  -
  Addr:  -
  Float: f-f

Return the arc tangent of a floating point number.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:ceiling

  Data:  -
  Addr:  -
  Float: F-F

Return the smallest integral value greater than or equal to the specified value.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:cos

  Data:  -
  Addr:  -
  Float: f-f

Return the cosine of a floating point number.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:depth

  Data:  -n
  Addr:  -
  Float: -

Return the number of items on the floating point stack.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:drop

  Data:  -
  Addr:  -
  Float: F-

Discard the top item on the floating point stack.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:dup

  Data:  -
  Addr:  -
  Float: F-FF

Duplicate the top item on the floating point stack.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:eq?

  Data:  -f
  Addr:  -
  Float: FF-

Compare two floating point values for equality. Returns `TRUE` if they are equal or `FALSE` otherwise.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:floor

  Data:  -
  Addr:  -
  Float: F-F

Perform a mathmatical floor operation on the floating point value.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:gt?

  Data:  -f
  Addr:  -
  Float: FF-

Compare two floating point values for greater than.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:log

  Data:  -
  Addr:  -
  Float: FF-F

Return log(F1) for base F2 for floating point values.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:lt?

  Data:  -f
  Addr:  -
  Float: FF-

Compare two floating point values for less than.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:negate

  Data:  -
  Addr:  -
  Float: F-F

Invert the sign of the floating point value.

Class Handler: class:word | Namespace: f | Interface Layer: rre

Example #1:

    .3.1415 f:negate

----------------------------------------------------------------

f:negative?

  Data:  -f
  Addr:  -
  Float: F-

Return `TRUE` if floating point value is negative or `FALSE` if not.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:over

  Data:  -
  Addr:  -
  Float: FG-FGF

Put a copy of the second floating point value over the top one.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:positive?

  Data:  -f
  Addr:  -
  Float: F-

Return `TRUE` if floating point value is positive or `FALSE` otherwise.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:power

  Data:  -
  Addr:  -
  Float: FF-F

Return F1^F2 for floating point values.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:sin

  Data:  -
  Addr:  -
  Float: f-f

Return the sine of a floating point number.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:swap

  Data:  -
  Addr:  -
  Float: FG-GF

Exchange the top and second items on the floating point stack.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:tan

  Data:  -
  Addr:  -
  Float: f-f

Return the tangent of a floating point number.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:to-number

  Data:  -n
  Addr:  -
  Float: F-

Convert a floating point value into a number.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:to-string

  Data:  -s
  Addr:  -
  Float: F-

Convert a floating point value into a string.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

f:tuck

  Data:  -
  Addr:  -
  Float: FG-GFG

Tuck a copy of the top floating point value under the second one.

Class Handler: class:word | Namespace: f | Interface Layer: rre

----------------------------------------------------------------

fetch

  Data:  a-n
  Addr:  -
  Float: -

Fetch the value stored at the specified address.

Class Handler: class:primitive | Namespace: global | Interface Layer: all

Example #1:

    &Version fetch

----------------------------------------------------------------

fetch-next

  Data:  a-an
  Addr:  -
  Float: -

Fetch the value stored at the specified address. Returns the next address and the value.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

file:A

  Data:  -n
  Addr:  -
  Float: -

Constant for opening a file in APPEND mode.

Class Handler: class:data | Namespace: file | Interface Layer: rre

----------------------------------------------------------------

file:R

  Data:  -n
  Addr:  -
  Float: -

Constant for opening a file in READ mode.

Class Handler: class:data | Namespace: file | Interface Layer: rre

----------------------------------------------------------------

file:R+

  Data:  -n
  Addr:  -
  Float: -

Constant for opening a file in READ & WRITE mode.

Class Handler: class:data | Namespace: file | Interface Layer: rre

----------------------------------------------------------------

file:W

  Data:  -n
  Addr:  -
  Float: -

Constant for opening a file in WRITE mode.

Class Handler: class:data | Namespace: file | Interface Layer: rre

----------------------------------------------------------------

file:close

  Data:  h-
  Addr:  -
  Float: -

Given a file handle, close the file.

Class Handler: class:word | Namespace: file | Interface Layer: rre

----------------------------------------------------------------

file:delete

  Data:  s-
  Addr:  -
  Float: -

Delete the named file.

Class Handler: class:word | Namespace: file | Interface Layer: rre

----------------------------------------------------------------

file:exists?

  Data:  s-f
  Addr:  -
  Float: -

Given a file name, return `TRUE` if it exists or `FALSE` if it does not.

Class Handler: class:word | Namespace: file | Interface Layer: rre

----------------------------------------------------------------

file:flush

  Data:  h-
  Addr:  -
  Float: -

Given a file handle, flush any pending writes to disk.

Class Handler: class:word | Namespace: file | Interface Layer: rre

----------------------------------------------------------------

file:for-each-line

  Data:  sq-
  Addr:  -
  Float: -

Given a file name, open it and run the quote once for each line in the file.

Class Handler: class:word | Namespace: file | Interface Layer: rre

----------------------------------------------------------------

file:open

  Data:  sm-h
  Addr:  -
  Float: -

Open a named file (s) with the given mode (m). Returns a handle identifying the file.

Class Handler: class:word | Namespace: file | Interface Layer: rre

Example #1:

  '/etc/motd file:R file:open

----------------------------------------------------------------

file:read

  Data:  h-c
  Addr:  -
  Float: -

Given a file handle, read and return the next character in it.

Class Handler: class:word | Namespace: file | Interface Layer: rre

----------------------------------------------------------------

file:read-line

  Data:  f-s
  Addr:  -
  Float: -

Given a file handle, read a line and return a pointer to it.

Class Handler: class:word | Namespace: file | Interface Layer: rre

----------------------------------------------------------------

file:seek

  Data:  nh-
  Addr:  -
  Float: -

Move the current offset into a file to the specified one.

Class Handler: class:word | Namespace: file | Interface Layer: rre

----------------------------------------------------------------

file:size

  Data:  h-n
  Addr:  -
  Float: -

Given a file handle, return the size of the file (in bytes).

Class Handler: class:word | Namespace: file | Interface Layer: rre

----------------------------------------------------------------

file:slurp

  Data:  as-
  Addr:  -
  Float: -

Given an address and a file name, read the file contents into memory starting at the address.

Class Handler: class:word | Namespace: file | Interface Layer: rre

----------------------------------------------------------------

file:spew

  Data:  ss-
  Addr:  -
  Float: -

Given a string (s1) and a file name (s2), write the string into the file, replacing any existing cotent.

Class Handler: class:word | Namespace: file | Interface Layer: rre

----------------------------------------------------------------

file:tell

  Data:  h-n
  Addr:  -
  Float: -

Given a file handle, return the current offset in the file.

Class Handler: class:word | Namespace: file | Interface Layer: rre

----------------------------------------------------------------

file:write

  Data:  ch-
  Addr:  -
  Float: -

Write a character to the file represented by the handle.

Class Handler: class:word | Namespace: file | Interface Layer: rre

----------------------------------------------------------------

getc

  Data:  -c
  Addr:  -
  Float: -

Read a single keypress.

Class Handler: class:word | Namespace: global | Interface Layer: rre

----------------------------------------------------------------

gets

  Data:  -s
  Addr:  -
  Float: -

Read input from standard in (via `getc`) until a CR or LF is encountered. Returns a strig.

Class Handler: class:word | Namespace: all | Interface Layer: rre

----------------------------------------------------------------

gopher:get

  Data:  asns-n
  Addr:  -
  Float: -

Takes an address, a server, a port, and a selector. Fetch the resource and store it at address. Return the number of bytes received.

Class Handler: class:word | Namespace: gopher | Interface Layer: rre

Example #1:

    here 'forthworks.com #70 '/ gopher:get
    here puts

----------------------------------------------------------------

gt?

  Data:  nn-f
  Addr:  -
  Float: -

Compare n1 and n2. Return `TRUE` if n1 is greater than n2, or `FALSE` otherwise.

Class Handler: class:primitive | Namespace: global | Interface Layer: all

----------------------------------------------------------------

gteq?

  Data:  nn-f
  Addr:  -
  Float: -

Compare n1 and n2. Return `TRUE` if n1 is greater than or equal to n2, or `FALSE` otherwise.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

here

  Data:  -a
  Addr:  -
  Float: -

Return the next free address in memory.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

i

  Data:  s-
  Addr:  -
  Float: -

Assemble the instructions specified by the string into the current assembly scope.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

if

  Data:  fq-
  Addr:  -
  Float: -

Execute the quote if the flag is `TRUE`.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

immediate

  Data:  -
  Addr:  -
  Float: -

Change the class of the most recently defined word to `class:macro`.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

include

  Data:  s-
  Addr:  -
  Float: -

Run the code in the specified file. 

Class Handler: class:word | Namespace: global | Interface Layer: rre

----------------------------------------------------------------

interpret

  Data:  s-
  Addr:  -
  Float: -

Interpret a single input token.

Class Handler: class:word | Namespace: global | Interface Layer: all

Example #1:

    '#100 interpret
    'words interpret

----------------------------------------------------------------

listen

  Data:  -
  Addr:  -
  Float: -

Run interactive "listener" (a REPL).

Class Handler: class:word | Namespace: global | Interface Layer: rre

----------------------------------------------------------------

lt?

  Data:  nn-f
  Addr:  -
  Float: -

Compare n1 and n2. Return `TRUE` if n1 is less than n2, or `FALSE` otherwise.

Class Handler: class:primitive | Namespace: global | Interface Layer: all

----------------------------------------------------------------

lteq?

  Data:  nn-f
  Addr:  -
  Float: -

Compare n1 and n2. Return `TRUE` if n1 is less than or equal to n2, or `FALSE` otherwise.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

mod

  Data:  nm-o
  Addr:  -
  Float: -

Divide `n` by `m` and return the remainder.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

n:-zero?

  Data:  n-f
  Addr:  -
  Float: -

Return `TRUE` if number is not zero, or `FALSE` otherwise.

Class Handler: class:word | Namespace: n | Interface Layer: all

----------------------------------------------------------------

n:MAX

  Data:  -n
  Addr:  -
  Float: -

Return the maximum value that will fit in a cell.

Class Handler: class:word | Namespace: n | Interface Layer: all

----------------------------------------------------------------

n:MIN

  Data:  -n
  Addr:  -
  Float: -

Return the minimum value that will fit in a cell.

Class Handler: class:word | Namespace: n | Interface Layer: all

----------------------------------------------------------------

n:abs

  Data:  n-n
  Addr:  -
  Float: -

Return the absolute value of a number.

Class Handler: class:word | Namespace: n | Interface Layer: all

Example #1:

    #10 n:abs
    #-10 n:abs


----------------------------------------------------------------

n:between?

  Data:  nlu-f
  Addr:  -
  Float: -

Return TRUE if number is between the lower (l) and upper (u) bounds. If not, return FALSE. This is inclusive of the limits.

Class Handler: class:word | Namespace: n | Interface Layer: all

Example #1:

    #3 #1 #100 n:between?
    $q $a $b   n:between?

----------------------------------------------------------------

n:dec

  Data:  n-m
  Addr:  -
  Float: -

Decrement n by one.

Class Handler: class:word | Namespace: n | Interface Layer: all

Example #1:

    #100 n:dec

----------------------------------------------------------------

n:even?

  Data:  n-f
  Addr:  -
  Float: -

Return `TRUE` if number is even, or `FALSE` if not.

Class Handler: class:word | Namespace: n | Interface Layer: all

Example #1:

    #12 n:even?
    #11 n:even?

----------------------------------------------------------------

n:inc

  Data:  n-m
  Addr:  -
  Float: -

Increment n by one.

Class Handler: class:word | Namespace: n | Interface Layer: all

Example #1:

    #100 n:inc

----------------------------------------------------------------

n:limit

  Data:  nlu-m
  Addr:  -
  Float: -

Return n if it is within the lower (l) and upper (u) bounds. If outside the bounds, return the closes boundary value.

Class Handler: class:word | Namespace: n | Interface Layer: all

Example #1:

    #-10 #5 #8 n:limit
    #10  #1 #15 n:limit

----------------------------------------------------------------

n:max

  Data:  mn-o
  Addr:  -
  Float: -

Return the greater of two values.

Class Handler: class:word | Namespace: n | Interface Layer: all

Example #1:

    #1 #7 n:max
    #-8 #-10 n:max

----------------------------------------------------------------

n:min

  Data:  mn-o
  Addr:  -
  Float: -

Return the lesser of two values.

Class Handler: class:word | Namespace: n | Interface Layer: all

Example #1:

    #1 #7 n:min
    #-8 #-10 n:min

----------------------------------------------------------------

n:negate

  Data:  n-n
  Addr:  -
  Float: -

Invert the sign of a number.

Class Handler: class:word | Namespace: n | Interface Layer: all

Example #1:

    #10 n:negate
    #-10 n:negate

----------------------------------------------------------------

n:negative?

  Data:  n-f
  Addr:  -
  Float: -

Return `TRUE` if number is negative, or `FALSE` if not.

Class Handler: class:word | Namespace: n | Interface Layer: all

----------------------------------------------------------------

n:odd?

  Data:  n-f
  Addr:  -
  Float: -

Return `TRUE` if number is odd, or `FALSE` if not.

Class Handler: class:word | Namespace: n | Interface Layer: all

----------------------------------------------------------------

n:positive?

  Data:  n-f
  Addr:  -
  Float: -

Return `TRUE` if number is positive, or `FALSE` if not.

Class Handler: class:word | Namespace: n | Interface Layer: all

----------------------------------------------------------------

n:pow

  Data:  bp-n
  Addr:  -
  Float: -

Return base (b) to power (p).

Class Handler: class:word | Namespace: n | Interface Layer: all

----------------------------------------------------------------

n:sqrt

  Data:  n-m
  Addr:  -
  Float: -

Return the square root of a number.

Class Handler: class:word | Namespace: n | Interface Layer: all

----------------------------------------------------------------

n:square

  Data:  n-m
  Addr:  -
  Float: -

Return the square of a number.

Class Handler: class:word | Namespace: n | Interface Layer: all

----------------------------------------------------------------

n:strictly-positive?

  Data:  n-f
  Addr:  -
  Float: -

Return TRUE if number is greater than zero or FALSE if it is zero or less.

Class Handler: class:word | Namespace: n | Interface Layer: all

----------------------------------------------------------------

n:to-float

  Data:  n-
  Addr:  -
  Float: -F

Convert a number into a floating point value.

Class Handler: class:word | Namespace: n | Interface Layer: rre

----------------------------------------------------------------

n:to-string

  Data:  n-s
  Addr:  -
  Float: -

Convert a number into a string.

Class Handler: class:word | Namespace: n | Interface Layer: all

----------------------------------------------------------------

n:zero?

  Data:  n-f
  Addr:  -
  Float: -

Return `TRUE` if number is zero, or `FALSE` otherwise.

Class Handler: class:word | Namespace: n | Interface Layer: all

----------------------------------------------------------------

nip

  Data:  nm-m
  Addr:  -
  Float: -

Remove the second item from the stack.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

nl

  Data:  -
  Addr:  -
  Float: -

Display a newline.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

not

  Data:  n-m
  Addr:  -
  Float: -

Perform a logical NOT operation.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

or

  Data:  mn-o
  Addr:  -
  Float: -

Perform a bitwise OR between the provided values.

Class Handler: class:primitive | Namespace: global | Interface Layer: all

----------------------------------------------------------------

over

  Data:  nm-nmn
  Addr:  -
  Float: -

Put a copy of n over m.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

parse-until

  Data:  q-s
  Addr:  -
  Float: -

Read input from stdin (via `getc`) until the returned character is matched by the quote. Returns a string.

Class Handler: class:word | Namespace: all | Interface Layer: rre

Example #1:

  :read-until-period (-s)
    [ $. eq? ] parse-until ;

----------------------------------------------------------------

pop

  Data:  -n
  Addr:  n-
  Float: -

Move a value from the return stack to the data stack.

Class Handler: class:macro | Namespace: global | Interface Layer: all

----------------------------------------------------------------

prefix:!

  Data:  ns-
  Addr:  -
  Float: -

Store a value into a variable.

Interpret Time:
  Store a value into the named variable.

Compile Time:
  Compile the code to store a value into a named variable.

Class Handler: class:macro | Namespace: prefix | Interface Layer: all

----------------------------------------------------------------

prefix:#

  Data:  s-n
  Addr:  -
  Float: -

Process token as a number.

Interpret Time:
  Convert the string into a number and leave on the stack.

Compile Time:
  Convert the string into a number and compile into the current definition as a literal.

Class Handler: class:macro | Namespace: prefix | Interface Layer: all

----------------------------------------------------------------

prefix:$

  Data:  s-c
  Addr:  -
  Float: -

Process token as an ASCII character.

Interpret Time:
  Fetch first character from string. Leave on stack.

Compile Time:
  Fetch first character from the string. Compile into the current definition as  literal.

Class Handler: class:macro | Namespace: prefix | Interface Layer: all

----------------------------------------------------------------

prefix:&

  Data:  s-a
  Addr:  -
  Float: -

Return a pointer to a named item.

Interpret Time:
  Lookup name in dictionary, return contents of the xt field on the stack.

Compile Time:
  Lookup name in dictionary, compile code to push the contents of the xt field into the current definition.

Class Handler: class:macro | Namespace: prefix | Interface Layer: all

----------------------------------------------------------------

prefix:'

  Data:  s-s
  Addr:  -
  Float: -

Process token as a string.

Interpret Time:
  Move string into temporary buffer. If `RewriteUnderscores` is `TRUE`, replace all instances of _ with space.

Compile Time:
  Move string into temporary buffer. If `RewriteUnderscores` is `TRUE`, replace all instances of _ with space. Then compile the string into the current definition.

Class Handler: class:macro | Namespace: prefix | Interface Layer: all

----------------------------------------------------------------

prefix:(

  Data:  s-
  Addr:  -
  Float: -

Process token as a comment.

Interpret Time:
  Discard the string.

Compile Time:
  Discard the string.

Class Handler: class:macro | Namespace: prefix | Interface Layer: all

----------------------------------------------------------------

prefix:.

  Data:  s-
  Addr:  -
  Float: -F

Interpret time: convert string to a floating point value. Compile time: convert string to a floating point value and compile code to push this value to the float stack.

Class Handler: class:macro | Namespace: prefix | Interface Layer: rre

----------------------------------------------------------------

prefix::

  Data:  s-
  Addr:  -
  Float: -

Process token as a new definition.

Interpret Time:
  Create a header pointing to `here` with the provided string as the name. Sets class to `class:word`.

Class Handler: class:macro | Namespace: prefix | Interface Layer: all

----------------------------------------------------------------

prefix:@

  Data:  s-n
  Addr:  -
  Float: -

Fetch from a stored variable.

Interpret Time:
  Fetch a value from a named variable.

Compile Time:
  Compile the code to fetch a value from a named variable into the current definition.

Class Handler: class:macro | Namespace: prefix | Interface Layer: all

----------------------------------------------------------------

prefix:`

  Data:  s-
  Addr:  -
  Float: -

Process token as a bytecode.

Interpret Time:
  Discard the string.

Compile Time:
  Convert the string to a number and use `,` to inline it into the current definition.

Class Handler: class:macro | Namespace: prefix | Interface Layer: all

----------------------------------------------------------------

push

  Data:  n-
  Addr:  -n
  Float: -

Move a value from the data stack to the return stack.

Class Handler: class:macro | Namespace: global | Interface Layer: all

----------------------------------------------------------------

putc

  Data:  c-
  Addr:  -
  Float: -

Display a single character.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

putf

  Data:  -
  Addr:  -
  Float: F-

Display a floating point number.

Class Handler: class:word | Namespace: global | Interface Layer: rre

----------------------------------------------------------------

putn

  Data:  n-
  Addr:  -
  Float: -

Display a number.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

puts

  Data:  s-
  Addr:  -
  Float: -

Display a string.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

r

  Data:  s-
  Addr:  -
  Float: -

Lookup a reference by name and inline its pointer to the current assembly segment.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

reclass

  Data:  a-
  Addr:  -
  Float: -

Change the class handler of the most recently defined word to the specified one.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

reorder

  Data:  ...ss-?
  Addr:  -
  Float: -

Restructure the order of items on the stack.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

repeat

  Data:  -
  Addr:  -
  Float: -

Begin an unconditional loop.

Class Handler: class:macro | Namespace: global | Interface Layer: all

----------------------------------------------------------------

reset

  Data:  ...-
  Addr:  -
  Float: -

Remove all items from the stack.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

rot

  Data:  abc-bca
  Addr:  -
  Float: -

Rotate the top three values.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

s,

  Data:  s-
  Addr:  -
  Float: -

Compile the code needed to push a string pointer to the stack and inline the string data into the current definition.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

s:ASCII-LETTERS

  Data:  -s
  Addr:  -
  Float: -

Constant. Returns a string of the ASCII letters (upper and lower case)

Class Handler: class:data | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:ASCII-LOWERCASE

  Data:  -s
  Addr:  -
  Float: -

Constant. Returns a string of the ASCII letters in lowercase

Class Handler: class:data | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:ASCII-UPPERCASE

  Data:  -s
  Addr:  -
  Float: -

Constant. Returns a string of the ASCII letters in uppercase

Class Handler: class:data | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:DIGITS

  Data:  -s
  Addr:  -
  Float: -

Constant. Return a string of characters recognized as numeric digits.

Class Handler: class:data | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:PUNCTUATION

  Data:  -s
  Addr:  -
  Float: -

Constant. Return a string of characters recognized as punctuation.

Class Handler: class:data | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:WHITESPACE

  Data:  -s
  Addr:  -
  Float: -

Constant. Returns a string of characters recognized as whitespace.

Class Handler: class:data | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:append

  Data:  ss-s
  Addr:  -
  Float: -

Return a new string consisting of s1 followed by s2.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:case

  Data:  sSq- || sSq-s
  Addr:  -
  Float: -

If the `s` matches `S`, discard `s` and run the quote before exiting the caller. If they do not match, discard the quote and leave `s` on the stack.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:chop

  Data:  s-s
  Addr:  -
  Float: -

Remove the last character from a string.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:const

  Data:  ss-
  Addr:  -
  Float: -

Create a constant named s2, returning a pointer to s1. This will use `s:keep` to preserve the original string.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:contains-char?

  Data:  sc-f
  Addr:  -
  Float: -

Return `TRUE` if the character is present in the string or `FALSE` otherwise.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:contains-string?

  Data:  ss-f
  Addr:  -
  Float: -

Return `TRUE` if the second string is present in the first string or `FALSE` otherwise.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:copy

  Data:  sa-
  Addr:  -
  Float: -

Copy a string (s) to a destination (a). This will include the terminator character when copying.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:empty

  Data:  -s
  Addr:  -
  Float: -

Return an empty string.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:eq?

  Data:  ss-f
  Addr:  -
  Float: -

Compare two strings for equality. Return `TRUE` if identical or `FALSE` if not.

Class Handler: class:word | Namespace: s | Interface Layer: all

Example #1:

    'hello 'again s:eq?
    'test  'test  s:eq?

----------------------------------------------------------------

s:evaluate

  Data:  s-?
  Addr:  -
  Float: -

Evaluate string as if it was typed into the interpreter.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:filter

  Data:  sq-s
  Addr:  -
  Float: -

Execute the quote once for each value in the string. If the quote returns `TRUE`, append the value into a new string. If `FALSE` the value will be discarded.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:for-each

  Data:  sq-
  Addr:  -
  Float: -

Execute the quote once for each value in the string.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:hash

  Data:  s-n
  Addr:  -
  Float: -

Calculate a hash value for a string. This uses the djb2 algorithim.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:index-of

  Data:  sc-n
  Addr:  -
  Float: -

Return the location of the first instance of the specified character in the string.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:index-of-string

  Data:  ss-n
  Addr:  -
  Float: -

Return the location of the first instance of the specified substring (s2) in the string (s1). Returns -1 if not found.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:keep

  Data:  s-s
  Addr:  -
  Float: -

Store a string into the heap and return a pointer to the start of it.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:left

  Data:  sn-s
  Addr:  -
  Float: -

Return a new string containing the first `n` characters from the source string.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:length

  Data:  s-n
  Addr:  -
  Float: -

Return the number of characters in a string, excluding the NULL terminator.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:map

  Data:  sq-s
  Addr:  -
  Float: -

Execute the specified quote once for each character in the string. Builds a new string from the return value of the quote. The quote should return only one value.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:prepend

  Data:  ss-s
  Addr:  -
  Float: -

Return a new string consisting of s2 followed by s1.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:replace

  Data:  sss-s
  Addr:  -
  Float: -

Replace the first instance of s2 in s1 with s3.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:reverse

  Data:  s-s
  Addr:  -
  Float: -

Reverse the order of ASCII characters in a string.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:right

  Data:  sn-s
  Addr:  -
  Float: -

Return a new string containing the specified number of characters from the right side of the string.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:skip

  Data:  -
  Addr:  -
  Float: -

Internal helper function used to skip over a string in a definition.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:split

  Data:  sc-ss
  Addr:  -
  Float: -

Split a string on the first occurrance of the specified character.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:split-on-string

  Data:  ss-ss
  Addr:  -
  Float: -

Split a string on the first occurrance of the specified string. After the split, the top stack item will be the part of the string before the specified subsring, and the second item will be the rest of the original string.

Class Handler: class:word | Namespace: s | Interface Layer: all

Example #1:

  'Hello_Brave_World! 'Brave s:split-on-string puts nl puts nl

----------------------------------------------------------------

s:substr

  Data:  sfl-s
  Addr:  -
  Float: -

Extract a substring from the specified string. This will take the characters starting at `f` and extend `l` characters in length.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:temp

  Data:  s-s
  Addr:  -
  Float: -

Move a string into the temporary string buffers.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:to-float

  Data:  s-
  Addr:  -
  Float: -F

Convert a string representation into a floating point value.

Class Handler: class:word | Namespace: s | Interface Layer: rre

----------------------------------------------------------------

s:to-lower

  Data:  s-s
  Addr:  -
  Float: -

Convert uppercase ASCII characters in a string to lowercase.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:to-number

  Data:  s-n
  Addr:  -
  Float: -

Convert a string to a number.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:to-upper

  Data:  s-s
  Addr:  -
  Float: -

Convert lowercase ASCII characters in a string to uppercase.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

s:tokenize

  Data:  sc-a
  Addr:  -
  Float: -

Takes a string and a character to use as a separator. It splits the string into a set of substrings and returns a set containing pointers to each of them.

Class Handler: class:word | Namespace: {n/a} | Interface Layer: {n/a}

----------------------------------------------------------------

s:tokenize-on-string

  Data:  ss-a
  Addr:  -
  Float: -

Takes a string (s1) and a substring (s2)  use as a separator. It splits the string into a set of substrings and returns a set containing pointers to each of them.

Class Handler: class:word | Namespace: {n/a} | Interface Layer: {n/a}

----------------------------------------------------------------

s:trim

  Data:  s-s
  Addr:  -
  Float: -

Trim leading and trailing whitespace from a string.

Class Handler: class:word | Namespace: s | Interface Layer: all

Example #1:

    '__hello__ s:trim

----------------------------------------------------------------

s:trim-left

  Data:  s-s
  Addr:  -
  Float: -

Trim leading whitespace from a string.

Class Handler: class:word | Namespace: s | Interface Layer: all

Example #1:

    '__hello__ s:trim-left

----------------------------------------------------------------

s:trim-right

  Data:  s-s
  Addr:  -
  Float: -

Trim trailing whitespace from a string.

Class Handler: class:word | Namespace: s | Interface Layer: all

Example #1:

    '__hello__ s:trim-right

----------------------------------------------------------------

s:with-format

  Data:  ...s-s
  Addr:  -
  Float: -

Construct a new string using the template passed and items from the stack.

Class Handler: class:word | Namespace: s | Interface Layer: all

----------------------------------------------------------------

set:contains-string?

  Data:  sa-f
  Addr:  -
  Float: -

Return `TRUE` if the string value is in the set or`FALSE` otherwise.

Class Handler: class:word | Namespace: set | Interface Layer: all

----------------------------------------------------------------

set:contains?

  Data:  na-f
  Addr:  -
  Float: -

Return `TRUE` if the value is in the set or `FALSE` otherwise.

Class Handler: class:word | Namespace: set | Interface Layer: all

----------------------------------------------------------------

set:dup

  Data:  a-b
  Addr:  -
  Float: -

Make a copy of a set. Return the address of the copy.

Class Handler: class:word | Namespace: set | Interface Layer: all

----------------------------------------------------------------

set:filter

  Data:  aq-b
  Addr:  -
  Float: -

For each item in the initial set, run the specified quote. If the quote returns `TRUE`, copy the item into a new set. If `FALSE`, discard it. Returns a pointer to the new set.

Class Handler: class:word | Namespace: set | Interface Layer: all

----------------------------------------------------------------

set:for-each

  Data:  aq-
  Addr:  -
  Float: -

Execute the quote once for each item in the set.

Class Handler: class:word | Namespace: set | Interface Layer: all

----------------------------------------------------------------

set:from-results

  Data:  q-a
  Addr:  -
  Float: -

Execute quote. Return a new set containing the values the quote leaves on the stack.

Class Handler: class:word | Namespace: set | Interface Layer: all

----------------------------------------------------------------

set:from-string

  Data:  s-a
  Addr:  -
  Float: -

Create a new set with the characters in the source string.

Class Handler: class:word | Namespace: set | Interface Layer: all

----------------------------------------------------------------

set:length

  Data:  a-n
  Addr:  -
  Float: -

Return the length of a set.

Class Handler: class:word | Namespace: set | Interface Layer: all

----------------------------------------------------------------

set:map

  Data:  aq-
  Addr:  -
  Float: -

Execute quote once for each item in the set. Constructs a new set from the value returned by the quote.

Class Handler: class:word | Namespace: set | Interface Layer: all

----------------------------------------------------------------

set:nth

  Data:  an-b
  Addr:  -
  Float: -

Return the actual address of the nth item in the set.

Class Handler: class:word | Namespace: set | Interface Layer: all

----------------------------------------------------------------

set:reduce

  Data:  pnq-n
  Addr:  -
  Float: -

Takes a set, a starting value, and a quote. This will apply the quote to each item in the set; the quote should consume two values and return one.

Class Handler: class:word | Namespace: set | Interface Layer: all

----------------------------------------------------------------

set:reverse

  Data:  a-b
  Addr:  -
  Float: -

Reverse the order of items in a set. This will return a new set.

Class Handler: class:word | Namespace: set | Interface Layer: all

----------------------------------------------------------------

shift

  Data:  mn-o
  Addr:  -
  Float: -

Peform a bitwise shift of m by n bits. If n is positive, shift right. If negative, the shift will be to the left.

Class Handler: class:primitive | Namespace: global | Interface Layer: all

----------------------------------------------------------------

sip

  Data:  nq-n
  Addr:  -
  Float: -

Run quote. After execution completes, put a copy of n back on top of the stack.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

sp

  Data:  -
  Addr:  -
  Float: -

Display a space (`ASCII:SPACE`)

Class Handler: class:word | Namespace: global | Interface Layer: all

Example #1:

    :spaces (n-)  [ sp ] times ;
    #12 spaces

----------------------------------------------------------------

store

  Data:  na-
  Addr:  -
  Float: -

Store a value into the specified address.

Class Handler: class:primitive | Namespace: global | Interface Layer: all

Example #1:

    'Base var
    #10 &Base store

----------------------------------------------------------------

store-next

  Data:  na-a
  Addr:  -
  Float: -

Store a value into the specified address and return the next address.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

swap

  Data:  nm-mn
  Addr:  -
  Float: -

Exchange the position of the top two items on the stack

Class Handler: class:primitive | Namespace: global | Interface Layer: all

----------------------------------------------------------------

sys:argc

  Data:  -n
  Addr:  -
  Float: -

Return the number of arguments passed to the program.

Class Handler: class:word | Namespace: sys | Interface Layer: rre

----------------------------------------------------------------

sys:argv

  Data:  n-s
  Addr:  -
  Float: -

Given an argument number, return the argument as a string.

Class Handler: class:word | Namespace: sys | Interface Layer: rre

----------------------------------------------------------------

tab

  Data:  -
  Addr:  -
  Float: -

Display a tab (`ASCII:HT`)

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

times

  Data:  nq-
  Addr:  -
  Float: -

Run the specified quote the specified number of times.

Class Handler: class:word | Namespace: global | Interface Layer: all

Example #1:

    #12 [ $- putc ] times

----------------------------------------------------------------

tors

  Data:  -n
  Addr:  -
  Float: -

Get a copy of the top item on the return stack.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

tri

  Data:  xqqq-?
  Addr:  -
  Float: -

Apply q1 against x, then q2 against a copy of x, and finally q3 against another copy of x.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

tri*

  Data:  xyzqqq-?
  Addr:  -
  Float: -

Apply q1 against x, q2 against y, and q3 against z.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

tri@

  Data:  xyzq-?
  Addr:  -
  Float: -

Apply q against x, then against y, and finally against z.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

tuck

  Data:  nm-mnm
  Addr:  -
  Float: -

Put a copy of the top item on the stack under the second one.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

unix:chdir

  Data:  s-
  Addr:  -
  Float: -

Change the current working directory to the specified one.

Class Handler: class:word | Namespace: unix | Interface Layer: rre

Example #1:

  '/etc unix:chdir

----------------------------------------------------------------

unix:exec0

  Data:  s-
  Addr:  -
  Float: -

Execute a process by running the application specified by s.

Class Handler: class:word | Namespace: unix | Interface Layer: rre

----------------------------------------------------------------

unix:exec1

  Data:  ss-
  Addr:  -
  Float: -

Execute a process by running the application specified by s1. Pass s2 as an argument.

Class Handler: class:word | Namespace: unix | Interface Layer: rre

----------------------------------------------------------------

unix:exec2

  Data:  sss-
  Addr:  -
  Float: -

Execute a process by running the application specified by s1. Pass s2 and s3 as arguments.

Class Handler: class:word | Namespace: unix | Interface Layer: rre

----------------------------------------------------------------

unix:exec3

  Data:  ssss-
  Addr:  -
  Float: -

Execute a process by running the application specified by s1. Pass s2, s3, and s4 as arguments.

Class Handler: class:word | Namespace: unix | Interface Layer: rre

----------------------------------------------------------------

unix:exit

  Data:  n-
  Addr:  -
  Float: -

Exit the current process, returning the specified return code.

Class Handler: class:word | Namespace: unix | Interface Layer: rre

----------------------------------------------------------------

unix:fork

  Data:  -n
  Addr:  -
  Float: -

Fork the current process. Returns a PID.

Class Handler: class:word | Namespace: unix | Interface Layer: rre

----------------------------------------------------------------

unix:getenv

  Data:  sa-
  Addr:  -
  Float: -

Get an environment variable. Provide the name and an address to store it in.

Class Handler: class:word | Namespace: unix | Interface Layer: rre

Example #1:

  'SHELL s:empty [ unix:getenv ] sip puts nl

----------------------------------------------------------------

unix:getpid

  Data:  -n
  Addr:  -
  Float: -

Return the PID of the current process.

Class Handler: class:word | Namespace: unix | Interface Layer: rre

----------------------------------------------------------------

unix:kill

  Data:  nn-
  Addr:  -
  Float: -

Terminates a process. Takes a process and a signal to send.

Class Handler: class:word | Namespace: unix | Interface Layer: rre

----------------------------------------------------------------

unix:pclose

  Data:  n-
  Addr:  -
  Float: -

Close a pipe.

Class Handler: class:word | Namespace: unix | Interface Layer: rre

----------------------------------------------------------------

unix:popen

  Data:  sn-n
  Addr:  -
  Float: -

Open a pipe. Takes a command to run, and a file mode (`file:R` or `file:W`; `file:R+` may work on some systems). Returns a file ID usable with words in the `file:` namespace.

Class Handler: class:word | Namespace: unix | Interface Layer: rre

----------------------------------------------------------------

unix:putenv

  Data:  s-
  Addr:  -
  Float: -

Takes a string in the form `name=value` and sets an environment variable named `name` to `value`.

Class Handler: class:word | Namespace: unix | Interface Layer: rre

Example #1:

  'EDITOR=vi unix:putenv

----------------------------------------------------------------

unix:sleep

  Data:  n-
  Addr:  -
  Float: -

Sleep for the specified number of seconds.

Class Handler: class:word | Namespace: unix | Interface Layer: rre

----------------------------------------------------------------

unix:system

  Data:  s-
  Addr:  -
  Float: -

Runs another application using the system shell and returns after execution is completed.

Class Handler: class:word | Namespace: unix | Interface Layer: rre

Example #1:

  'ls_-lh_/etc unix:system

----------------------------------------------------------------

unix:wait

  Data:  -n
  Addr:  -
  Float: -

Waits for a child process to complete. This maps to the wait() system call.

Class Handler: class:word | Namespace: unix | Interface Layer: rre

----------------------------------------------------------------

unix:write

  Data:  sh-
  Addr:  -
  Float: -

Write a string to the specified file handle.

Class Handler: class:word | Namespace: unix | Interface Layer: rre

----------------------------------------------------------------

until

  Data:  q-
  Addr:  -
  Float: -

Execute quote repeatedly while the quote returns a value of `FALSE`. The quote must return a flag of either `TRUE` or `FALSE` to be used with this.

Class Handler: class:word | Namespace: global | Interface Layer: all

Example #1:

    #10 [ dup putn nl n:dec dup n:zero? ] until

----------------------------------------------------------------

v:dec

  Data:  a-
  Addr:  -
  Float: -

Decrement the value stored at the specified address by 1.

Class Handler: class:word | Namespace: v | Interface Layer: all

----------------------------------------------------------------

v:dec-by

  Data:  na-
  Addr:  -
  Float: -

Decrement the value stored at the specified address by the specified value.

Class Handler: class:word | Namespace: v | Interface Layer: all

----------------------------------------------------------------

v:inc

  Data:  a-
  Addr:  -
  Float: -

Increment the value stored at the specified address by 1.

Class Handler: class:word | Namespace: v | Interface Layer: all

----------------------------------------------------------------

v:inc-by

  Data:  na-
  Addr:  -
  Float: -

Increment the value stored at the specified address by the specified value.

Class Handler: class:word | Namespace: v | Interface Layer: all

----------------------------------------------------------------

v:limit

  Data:  alu-
  Addr:  -
  Float: -

Fetch the value stored at the address, then run `n:limit` against it, using the specified lower and upper bounds. Then store the resulting value back to the original address.

Class Handler: class:word | Namespace: v | Interface Layer: all

----------------------------------------------------------------

v:off

  Data:  a-
  Addr:  -
  Float: -

Set a variable to 0.

Class Handler: class:word | Namespace: v | Interface Layer: all

----------------------------------------------------------------

v:on

  Data:  a-
  Addr:  -
  Float: -

Set a variable to -1.

Class Handler: class:word | Namespace: v | Interface Layer: all

----------------------------------------------------------------

v:preserve

  Data:  aq-
  Addr:  -
  Float: -

Make a copy of the value at the address, then run the quote. Once the quote completes, restore the address to the specified value.

Class Handler: class:word | Namespace: v | Interface Layer: all

----------------------------------------------------------------

v:update-using

  Data:  aq-
  Addr:  -
  Float: -

Fetch a value from the specified address, then run the quotation with this value on the stack. Afterwards, store the returned value at the original address.

Class Handler: class:word | Namespace: v | Interface Layer: all

----------------------------------------------------------------

var

  Data:  s-
  Addr:  -
  Float: -

Create a variable. The variable is initialized to 0.

Class Handler: class:word | Namespace: global | Interface Layer: all

Example #1:

    'Base var

----------------------------------------------------------------

var<n>

  Data:  ns-
  Addr:  -
  Float: -

Create a variable with the specified initial value.

Class Handler: class:word | Namespace: global | Interface Layer: all

Example #1:

    #10 'Base var<n>


----------------------------------------------------------------

while

  Data:  q-
  Addr:  -
  Float: -

Execute quote repeatedly while the quote returns a value of `TRUE`. The quote must return a flag of either `TRUE` or `FALSE` to be used with this.

Class Handler: class:word | Namespace: global | Interface Layer: all

Example #1:

    #10 [ dup putn nl n:dec dup n:-zero? ] while

----------------------------------------------------------------

words

  Data:  -
  Addr:  -
  Float: -

Display a list of all named items in the `Dictionary`.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

xor

  Data:  mn-o
  Addr:  -
  Float: -

Perform a bitwise XOR operation.

Class Handler: class:primitive | Namespace: global | Interface Layer: all

----------------------------------------------------------------

{{

  Data:  -
  Addr:  -
  Float: -

Begin a lexically scoped area.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

}as

  Data:  f-
  Addr:  -
  Float: -

End an assembly section

Class Handler: class:macro | Namespace: global | Interface Layer: all

----------------------------------------------------------------

}}

  Data:  -
  Addr:  -
  Float: -

End a lexically scoped area.

Class Handler: class:word | Namespace: global | Interface Layer: all

----------------------------------------------------------------

