8005-panda-lang

8005-Programming-Language

What the 8005 Microprocessor Instruction Set Looks like

0. Halt
1. Increment R0 (R0 = R0 + 1)
2. Decrement R0 (R0 = R0 - 1)
3. Increment R1 (R1 = R1 + 1)
4. Decrement R1 (R1 = R1 - 1)
5. Add (R0 = R0 + R1)
6. Subtract (R0 = R0 - R1)
7. Print R0
8. Jump to address if R0 != 0
9. Jump to address if R0 == 0
10. Load in to R0
11. Load in to R1
12. Store R0 into address
13. Store R1 into address
14. Swap R0 and address
15. Swap R1 and address
16. Ring the bell!
17. Print R0 as an ASCII character

Currently, Panda does not support functionality to compile some code into some of these instructions but this has been provided as a reference

Installation

Installing Panda

To install Panda, perform: npm i 8005-panda-lang -g

Voila! You have successfully installed Panda!

Usage

Running Panda interpreter

• To run the Panda interpreter, perform panda

• To quit the Panda interpreter and retrieve the machine code from your inputted Panda code, perform quit; in the interpreter

Compiling Panda files

• Valid Panda files have the .pan file extension
• To compile a .pan file, perform panda fileName.pan

Details

Baseline Features

• My programming language allows users to use basic declaration statements with addition and subtraction

• My compiler successfully parses the code written in my programming language and prints out all the 8005 machine code

• My programming language is elegant and easy to use

• My programming language allows users to use the print as a number function

The Grammar/Syntax

Keywords

• "new" = Variable Declaration
• "print" = Print as unsigned char
• "printAsChar" = Prints a decimal value as it's ASCII equivalent

Operators

• "=" = Assignment
• "-" = Decrement
• "+" = Increment

Terminals

• " " = Whitespace
• ";" = End of statement

Functions

• "print" = Print

Documentation

HOW TO: Declarations

Samples of valid variable declarations are listed below

new variableName1 = 13;
new variableName2 = variableName1;
new variableName3 = variableName1 + 3;

Restrictions in Panda for declaring variables

• Inability to assign a value to more than 2 values in a binary expression
• Only numerical values

Things to keep in mind when declaring variables in Panda

• Make sure that you don't have variables which exceed over 256 or are under 0 otherwise the code will parse but you will have buggy machine code

• Make sure you don't use floats in your code

• Make sure there is no space between the last part of the statement and semi colon

HOW TO: Assignments

Samples of valid variable assignments are listed below

variableName1 = 13;
variableName2 = variableName1;
variableName3 = variableName1 + 3;

Restrictions in Panda for assignments

• Inability to assign a value to more than 2 values in a binary expression
• Only numerical values

Things to keep in mind when assigning variables in Panda

• Make sure that you don't have variables which exceed over 256 or are under 0 otherwise the code will parse but you will have buggy machine code

• Make sure you don't use floats in your code

• Make sure there is no space between the last part of the statement and semi colo### HOW TO: Assignments

HOW TO: Print as Int

Samples of valid print calls are listed below

print 13;
print variable;

Restrictions in Panda for print

• Inability to print binary expressions
• Only numerical values

Things to keep in mind when printing in Panda

• Make sure that you don't have variables which exceed over 256 or are under 0 otherwise the code will parse but you will have buggy machine code

• Make sure you don't use floats in your code

• Make sure there is no space between the last part of the statement and semi colon

HOW TO: Print Int as Char

Samples of valid printAsChar calls are listed below

printAsChar 65;
printAsChar variable

Restrictions in Panda for printAsChar

• Inability to print binary expressions
• Only numerical values

Things to keep in mind when printing as char in Panda

• Make sure that you don't have variables which exceed over 256 or are under 0 otherwise the code will parse but you will have buggy machine code

• Make sure you don't use floats in your code

• Make sure there is no space between the last part of the statement and semi colon

Final example

test.pan

new i = 13;
print i;

i = i + 60;
printAsChar i;

In your terminal, perform: panda test.pan

Coming Soon

We're working on some spectacular things with Panda Lang. Our current focus at the moment is ---Conditionals---