lrom

I've had partial success with changes to the linker script. Revised to include " -b _DATA = 0x4000" and "-b _INITIALIZER = 0x0200" it puts the initialized variable values at 0x200 in rom, with ram referenced in the proper spot at 0x4000. At startup the variables are properly copied to ram and the program accesses them.

Hello and thanks to those who take the time to read this. I'm attempting to write demo code for Galaxian Z80 arcade hardware. The idea came to me after seeing what was being done with SDCC on 8bitworkshop.com. My attempt uses some of their ideas, it's credited where cut and paste is obvious. I believe the author is Steven Hugg, who wrote a companion book. I want a minimalist command line setup in Windows for offline tinkering, basically a text editor, compiler and emulator. After compiling the code...

If you want to see what this currently looks like in Mame, screenshot attached.

Hello and thanks to those who take the time to read this. I'm attempting to write demo code for Galaxian Z80 arcade hardware. The idea came to me after seeing what was being done with SDCC on 8bitworkshop.com. My attempt borrows uses some of their ideas, it's credited where cut and paste is obvious. I believe the author is Steven Hugg, who wrote a companion book. I want a minimalist command line setup in Windows for offline tinkering, basically a text editor, compiler and emulator. After compiling...