Robotron: 2084 One-Bit Fix and Many Other Thoughts
Today we'll look at several aspects of Robotron: 2084. First we'll examine two of the main inspirations for Robotron's development: "Chase" for the Commodore PET (which we've modified to be a bit more playable) and "Berzerk" (demonstrated on the Atari 2600+ since we don't have access to the original arcade version). Then we'll look at the decent AtariSoft port of Robotron to the Commodore 64, including a Lego-assisted way of bringing the twin stick controls home. Then we'll examine the bizarre freezing bug when C64 Robotron is run on the Commodore SX-64, also known as the Executive 64. We'll examine the root causes: a hardware flaw in the SX-64, but also a software bug in Robotron, and suggest three different fixes for the problem.
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Download "Chase" for Commodore PET:
https://8bitshowandtell.com/downloads...
The first file on the disk image is "CHASE" which is the original game.
LOAD"CHASE2",8 if you want to play Robin's modified version.
Ray Carlsen's website: https://portcommodore.com/rcarlsen/
Direct links to Ray's SX-64 info:
https://portcommodore.com/rcarlsen/cb...
https://portcommodore.com/rcarlsen/cb...
https://portcommodore.com/rcarlsen/cb...
Index:
0:00 William's Electronics Memories
1:40 Robotron Influence 1: Chase for Commodore PET
7:01 Robotron Influence 2: Berzerk (shown on Atari 2600+)
9:40 Commodore 64 Robotron: 2084
11:29 Twin Sticks on C64
14:16 Robotron Bug on Commodore SX-64
19:25 The SX-64 SRQ line bug and hardware fixes
23:36 Examining the Robotron cartridge for the bug
29:04 The Fix: Flashing to EasyFlash
32:57 Testing Software Fix on the SX-64
35:38 Final Thoughts, Thanks
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