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Index > Non-x86 architectures > STM8 + fasmg

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shoorick



Joined: 25 Feb 2005
Posts: 1614
Location: Ukraine
shoorick 28 Jul 2017, 10:30
Here you have something to deal with STM8 MCUs.
They have weird but powerfull CISC command set, nice hardware and are pretty cheap.
If you are not a great solderer, you may buy mini-board with CPU and with or without soldered pins, etc. The board I've bought has reset button and led attached to PB5 pin, so, I had to solder only four pins to connect the board to usb programmer (ST-Link) to try.
STM8 can run program in RAM, and ST visual programmer can launch it without touching the FLASH memory, so, in attached example you may found a program which may blink the LED on PB5 pin from RAM.
Also there is a batch to convert stm8 headers into fasmg includes - you need sed installed to use it.

I'm new to this architecture, so, all offsets are restricted to be positive, and I'm not sure about MOV mem,mem: which is "mem1" and which is "mem2", I supposed the first offset after opcode is source, and the last is destination - must check it Wink Also, I have not check its behavior well on bad syntaxis...
So, bugfixes are welcome Rolling Eyes


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Post 28 Jul 2017, 10:30
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Tomasz Grysztar



Joined: 16 Jun 2003
Posts: 8356
Location: Kraków, Poland
Tomasz Grysztar 28 Jul 2017, 15:21
Thank you for your continued exploration of new architectures with fasmg! I have added it to the list.
Post 28 Jul 2017, 15:21
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shoorick



Joined: 25 Feb 2005
Posts: 1614
Location: Ukraine
shoorick 28 Jul 2017, 17:44
I'm glad to contribute such great assembler! Wink
Post 28 Jul 2017, 17:44
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