Fix for KIM Clone Single-Step Problem
Rev 1B and rev 2 boards have a problem where single-step mode does not work. It works for old 6502s but not for newer ones nor 65C02. The solution was very simple: add a .001 uf capacitor across U16 pins 7 and 8. All assembled KIM Clones now have the modification and future revisions of the board will have the capacitor on the motherboard.
See also:
History of the TIM in the Jolt
Jolt software
On this page software for the TIM is described.
- DEMON
- Tiny Basic ad Resident Assembler Program
- Focal-65 V3D
...
Images of the Jolt
Above photos by The National Museum of American History.
Photos from https://vinta...
Jolt with a 74154 decoder
The early Jolts were equipped with a 74154 decoder for the glue logic instead of the 74LS00/04/27 of the later and more ...