LimScript

Commands

Variables

• var [name] = [value]
  • Define a variable. Use # to get the value of an ASCII character. For example, x = #x.

Input / Output

• print [name / value] / printval [name / value]

  • Print out a variable / value.
    • print will print an ASCII character (e.g, print 65 will print a capital A)
    • printval will print the value as an integer (e.g, printval 65 will actually print 65)

• get [name]

  • Get input and store the first ASCII character value in the variable. (e.g, when you input Andromeda, the ASCII value of A will be stored.)

Arithmetic / Bitwise operations

It is possible to create new variables using these commands.

Arithmetic

• add [value 1] [value 2] [result variable]

  • Add value 1 to value 2 and store in result variable.

• sub [value 1] [value 2] [result variable]

  • Subtract value 2 from value 1 and store in result variable.

• mul [value 1] [value 2] [result variable]

  • Multiply value 1 times value 2 and store in result variable.

• div [value 1] [value 2] [result variable]

  • Divide value 1 by value 2 and store in result variable.

• mod [value 1] [value 2] [result variable]

  • Calculate remainder from value 1 divided by value 2 and store in result variable.

• exp [value 1] [value 2] [result variable]

  • Calculate value 1 to the power of value 2 and store in result variable.

• sqrt [value 1] [result variable]

  • Calculate the square root of value 1 and store in result variable.

Bitwise operations

• band [value 1] [value 2] [result variable] (bitwise and)

  • Calculate value 1 & value 2, and store in result variable.

• bor [value 1] [value 2] [result variable]

  • Calculate value 1 | value 2, and store in result variable.

• bxor [value 1] [value 2] [result variable]

  • Calculate value 1 ^ value 2, and store in result variable.

• shir [value 1] [value 2] [result variable]

  • Shift right value 1 by value 2 bits, and store in result variable.

• shil [value 1] [value 2] [result variable]

  • Shift left value 1 by value 2 bits, and store in result variable.

Control flow

Goto / Jumps

• label [name]

  • Assign a label to this line.

• goto [label]

  • Jump to a label.

• gotoif [label] [value 1] [operation] [value 2]

  • Jump to a label under a condition.
    • Available operations are: ==, !=, >, <, >= and <=.
    • Example: Jump to label myLabel if variable myVar is more than the ASCII value of A.
      gotoif myLabel myVar > #A

Subroutines

• subr [name]

  • Define a subroutine here.

• subj [subroutine]

  • "Call" a subroutine.

• subjif [subroutine] [value 1] [operation] [value 2]

  • "Call" a sobroutine under a condition.
    • Same syntax as gotoif.

• return

  • Return from a subroutine.

subroutines example needed

Stack

• push [value]

  • Push a value or a variable to the stack.

• [variable] = pop (weird syntax, will change in the future)

  • Store and then remove the top value on the stack in a variable.

• flipstack

  • Flip the stack.

Miscellaneous

• include [file]

  • Import another LimScript file.
    • Essentially copies the file's content to this position.

• exit [code]

  • Exit program immediately with error code.

• str [name] = [string]

  • Define a string variable.

• printstr [string]

  • Print a string to the console.

• arr [name] = [ints seperated by ,]

  • Define an array variable.

Array Functions

• getitem [array] [output] [index]

  • Get an item from an array.

• append [array] [data]

  • Append data to an array.

• pop [array] [output]

  • Pop the top value of an array into an output variable.

• delete [array] [data]

  • Delete a value from an array.

• printarr [array]

  • Prints the array's contents to the console.

Make sure to mark the end of a line with a semicolon! (;)

Usage

python3 limscript.py code.lim

Code Examples

Hello, World

print #H;
print #e;
print #l;
print #l;
print #o;
print #,;
print 32;
print #w;
print #o;
print #r;
print #l;
print #d;
print #!;
print 10;

Truth Machine

get val;
label loop;
printval val;
gotoif loop val == 1;

Fibonachi Sequence

var a = 1;
var b = 0;
var i = 0;

label loop;
add a b r;
var b = a;
var a = r;
printval r;
add i 1 i;
gotoif loop i <= 10;

Quadratic Formula

get a;
get b;
get c;

mul a c discrimiator;
mul discrimiator 4 discrimiator;
exp b 2 temp;
sub temp discrimiator discrimiator;
sqrt discrimiator discrimiator;

mul b -1 temp;
add temp discrimiator the;
mul 2 a temp;
div the temp result;

printval result;

mul b -1 temp;
sub temp discrimiator the;
mul 2 a temp;
div the temp result;

printval result;

Bottles of Age-Appropriate Beverage

(For Flask Interpreter)

var bottles = 99;
var newline = 10;
var space = 32;

str line1 = bottles of age-appropriate beverage on the wall,;
str line2 = bottles of age-appropriate beverage.;
str line3 = Take one down, pass it around,
str line4 = No more bottles of age-appropriate beverage on the wall!;


label loop;
printval bottles;
print space;
printstr line1;
print newline;
printval bottles;
print space;
printstr line2;
print newline;
printstr line3;
sub bottles 1 bottles;
print newline;
gotoif loop bottles > 0;

printstr line4;