Hello, I'm successfully using BSET and BRES assembler instructions where the position is constant. However, I'm having trouble getting it to work where the position is determined at runtime.
For example:
bset 0x500f, 2 ; works
ldw x, (0x03, sp)
bset 0x500f, x ; doesn't work
I've looked at several sites, but all seem to have constant positions.
One workaround would be to have a full list of BSET instructions, one for each position, and jump to the appropriate instruction based on a decision. This wouldn't be bad necessarily, but hoping for a better way.
References:
assembler instructions datasheet in PM0044, section 7 (specifically 7.4): https://www.st.com/content/ccc/resource/technical/document/programming_manual/43/24/13/9a/89/df/45/ed/CD00161709.pdf/files/CD00161709.pdf/jcr:content/translations/en.CD00161709.pdf
lujji's very helpful blog post: https://lujji.github.io/blog/mixing-c-and-assembly-on-stm8/
eforth: https://github.com/TG9541/stm8ef/wiki/STM8-eForth-Compiler-and-Assembly
a nice GitHub repo: https://github.com/search?q=repo%3Aaaw20904%2FSTM8_library%20bset&type=code
