Looks like a useful IDE. The "go" behavior is the same as other IDEs do it, e.g. Simplicity Studio from Silabs: first click on go stops at the first line of the main function, and then you can set breakpoints, and next go click actually runs the program.
Of course, standard ANSI C would be much better. I would recommend to use LLVM/CLANG instead of GCC, if someone wants to write a backend for it, because less headache and Dave2 could probably do it in one week with it.
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Yeah, Run-> Continue it is a normal thing and i hate it, if i wanted to stop i will use a breakpoint, no?
CoIDE which it is an Eclipse by CooCox (one of the operating systems for microcontrollers) also has the option by default (i dont know if it can be changed) so it is not only a thing by the official tools
Even if the chip is very cheap and has potential i dont see any others manufacturers dont doing similar low cost chips, now that RISC V is a thing it can be done and if it trends it will happen, as it happened before with many others things like arduino/raspberry or even the Software where now the toolschains/operating systems/ides are free instead of a few thousand dollars, so taking that effort to develop a new toolchain it is not a good idea in my opinion, it is a matther of time NXP, TI and others start to release things like that to the market
Bad times for ARM if you ask me, i believe that NXP, Microchip, Cypress or ST can release a microchip below 10 cents, they cant rigth now because licences cost money, thats where RISC come in, they took any open source micro like LEON, modify it slightly and boom, ARM will be in big trouble because once you start to roll you cant stop it