Extending BASIC for Graphics

In the first video, I covered porting EhBASIC to your 6502. In this one, I expand upon it and cover the various ways you can extend EhBASIC by adding some graphics commands to my BASIC implementation.

EhBASIC: https://github.com/jefftranter/6502/tree/master/asm/ehbasic

HBC-56 Github: https://github.com/visrealm/hbc-56

BASIC (in the repo): https://github.com/visrealm/hbc-56/tree/master/code/6502/basic

First video: https://www.youtube.com/watch?v=OJ0jKN-5u64

Follow along using the HBC-56 emulator.

00:00 Introduction 00:30 The emualtor 01:01 The CALL command 03:23 Jump tables 04:50 Handling arguments 07:03 Custom commands CLS and COLOR 10:42 DISPLAY and PLOT commands 19:22 Real hardware ... https://www.youtube.com/watch?v=kTbxUGV5qtQ