nelson@avsdS.UUCP (03/01/84)
Before I get on to the meat of this letter, I'd like to exort all C64 owners to move discussions to net.micro.cbm . Prevail on your system's administrators to get this group. The volume of C64 info in net.micro is alarming (and satisfying). Must have been a nice Xmas for a lot of you. I have an interesting debugger from Pterodactyl Software, 200 Bolinas Road #27, Fairfax, CA 94930, 415-485-0714 It is called PTD. This debugger was originally written for Apple, so it has a history. It currently sells for less than $50. The debugger allows setting multiple breakpoints, setting locations and variables that should be watched constantly, allowing some code to run at full speed, while other portions are traced, and supports up to 32 cycle timers! Best of all, this debugger uses a language similar in syntax to BASIC - you can write debugger scripts, and create debugger variables. The mini-assembler even supports labels, though forward references are allowed only for deferred mode. Addresses from 0x7800 onward are available when run from low memory. When run from high memory you get only up to 0x6000. The only caveat is that I have not used this much. I've played with it and seen that the more rudimentary things work, but have not had the time or occasion to really exercise it. My first version was a bit rough, and they promised both a disk and manual update "within 2 weeks". The impossible happened! Glenn Nelson at Ampex, Redwood City, CA 415-367-2499