Displaying 8080 internal state #209
JimDMoran
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IMSAI8080esp replica
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Has been added to the z80pack PC version lately, it can display an additional window with CPU registers and memory contents. You could use that to debug your programs. |
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It took me a while to debug some small, overly complicated do-almost-nothing programs I wrote in 8080 machine code and entered via the front panel. Eventually I wrote a separate routine I could single-step through that would fetch and display the 8080 internal register content. When I wanted to see the state at some point in my program, I would single step up to that point, then examine the address of this register display routine, step through it and read them out.
Is there any tool available that would do this in a window on the browser desktop? Given that the ESP32 emulation creates and manages these registers, it should be possible when the 8080 emulation is halted for it to display their content. Such a tool would be a welcome troubleshooting aid when single-stepping through front-panel programs.
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