XC=BASIC

Keyboard scan codes

neils (neils@undisclosed.example.com) — 2026-03-24T20:12:04+00:00

Keyboard scan codes Since version 3.1.13, keyboard scan codes are available as predefined constants for some targets. All you need to do is INCLUDE the keyboard definition for the platform you're targeting. For example: INCLUDE "keycodes_c64.bas" ' For the Commodore-64 PRINT "press f1" DO UNTIL KEY(KEY_F1) <> 0 LOOP

Welcome to XC=BASIC 3 - [Welcome to XC=BASIC 3]

neils (neils@undisclosed.example.com) — 2026-02-21T09:19:09+00:00

Welcome to XC=BASIC 3 XC=BASIC is a cross compiled, modern BASIC programming language for 8-bit Commodore (and alike) machines, such as * Commodore-64 * Commodore VIC-20 * Commodore-16 * Commodore Plus/4 * Commodore-128 * Commodore PET series

Arithmetic expressions

neils (neils@undisclosed.example.com) — 2024-07-30T22:51:22+00:00

Arithmetic expressions When no parentheses are present, arithmetic expressions are evaluated from left to right, with multiplication and division having a higher priority than addition and subtraction. The following table explains operator precedence in XC=BASIC:

Subroutines - [Overloading]

neils (neils@undisclosed.example.com) — 2024-07-30T22:43:11+00:00

Subroutines While you can use the GOSUB command in pair with RETURN to call parts of code as subroutines, the more sophisticated way of implementing subroutines is using the SUB ... END SUB block. Defining Subroutines Subroutines are named routines that accept zero or more arguments. The simplest syntax to define a subroutine is the following:

Memory model - [Zeropage]

neils (neils@undisclosed.example.com) — 2024-07-03T19:52:20+00:00

Memory model The following addresses are subject to change. Visit this page for updates. Zeropage [pet] [vic20] [c64] [c16] [cplus4] [c128] [m65] $02-$14 19 bytes XC=BASIC Virtual Registers $15-$3A 38 bytes Floating point workspace

Showcase - [Delve Deeper]

neils (neils@undisclosed.example.com) — 2024-06-09T08:31:40+00:00

Showcase Demos and games written in XC=BASIC 3. If you'd like to show your work to the World, send it to me and I'll post it here. Warzone by Orlof Welcome to Warzone - epic battle for dominance! In this Commodore 64 game two players take the helm of rival nations locked in a relentless war for supremacy.

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neils (neils@undisclosed.example.com) — 2024-06-09T08:29:13+00:00

Library Reference - [Third-party Libraries]

neils (neils@undisclosed.example.com) — 2023-12-20T09:03:23+00:00

Library Reference Libraries are sets of Subroutines and/or Functions that are written in XC=BASIC or assembly language and provide shared functionality to be used in your program. Built-in Libraries The following libraries are packaged with XC=BASIC: * TRIGONO.BAS - library that implements fundamental trigonometric functions

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neils (neils@undisclosed.example.com) — 2022-12-30T14:55:23+00:00

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neils (neils@undisclosed.example.com) — 2022-12-17T18:20:11+00:00

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neils (neils@undisclosed.example.com) — 2022-12-15T20:26:17+00:00

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neils (neils@undisclosed.example.com) — 2022-12-14T13:41:49+00:00

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neils (neils@undisclosed.example.com) — 2022-12-14T13:34:06+00:00

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neils (neils@undisclosed.example.com) — 2021-11-24T13:58:18+00:00

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neils (neils@undisclosed.example.com) — 2021-11-24T13:34:02+00:00

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neils (neils@undisclosed.example.com) — 2021-10-13T21:35:46+00:00

starfield.gif - created

neils (neils@undisclosed.example.com) — 2021-09-25T22:51:03+00:00

tutorial1-tetris:tetris-2021-02-03_10.55.05.mp4 - created

neils (neils@undisclosed.example.com) — 2021-02-03T10:56:30+00:00

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neils (neils@undisclosed.example.com) — 2021-01-30T17:44:25+00:00

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neils (neils@undisclosed.example.com) — 2021-01-28T13:30:26+00:00