Correct. I have fixed the doc.
Note that, as of today, EXBA is only used in the microkernel of the multithreading example
https://github.com/lb3361/gigatron-lcc/ ... ff/threads
The callable functions are in threads.h and the kernel in threads.s.
ROM adventures (dev7rom)
Forum rules
Be nice. No drama.
Be nice. No drama.
Re: ROM adventures (dev7rom)
Can You check MOVW (opcode $BC) instruction?
Propably it working bad. I chceked on latest dev7.rom of ROM file.
Propably it working bad. I chceked on latest dev7.rom of ROM file.
Re: ROM adventures (dev7rom)
Documentation error again 
. The opcode is $bb.
In general, the opcode information in interface-dev.json is the most reliable because this is the source of truth for the c compiler and because the rom compilation process checks that it matches the labels in the rom source. That said, I am happy to fix these embarrassing documentation errors.
MOVW is an instructions that seems very simple but is hard to implement on the gigatron. I am not happy that it takes 36 cycles. On the other hand, it saves one byte relative to LDW+STW and sometimes even more because vAC is preserved.
. The opcode is $bb. In general, the opcode information in interface-dev.json is the most reliable because this is the source of truth for the c compiler and because the rom compilation process checks that it matches the labels in the rom source. That said, I am happy to fix these embarrassing documentation errors.
MOVW is an instructions that seems very simple but is hard to implement on the gigatron. I am not happy that it takes 36 cycles. On the other hand, it saves one byte relative to LDW+STW and sometimes even more because vAC is preserved.