Fully coded in gtBASIC, it makes maximum use of the Gigatron's new instruction's and sys call's in ROMvX0.
The first segment of the video is the code compiled for ROMv5a, the second segment is compiled for ROMvX0.
Uses new features found in ROMvX0, such as enhanced multiply, divide and line draw.
Uses Mode 3 to keep an interactive frame rate.
Uses 64K RAM in a RAM expanded Gigatron TTL to provide flicker free double buffering.
Pure gtBASIC code, no assembly used.
Gigatron TTL Forums:
https://forum.gigatron.io/index.php
Source code available at:
https://github.com/at67/gigatron-rom/...
https://github.com/kervinck/gigatron-rom