3 Commits

Author	SHA1	Message	Date
Koen Zandberg	b57b3d490d	cpu/fe310: Allow using immediates for ecall arguments ... The mv instruction (which is usually implemented as `add rd, x0, r1`) is changed to `add rd, x0, %input`. This can either be used as a load immediate or as an move. The code size grows by two bytes. This because GCC does not compress the li instruction to the compressed version (even though this is possible).	2021-01-22 20:49:52 +01:00
Koen Zandberg	896227ab08	cpu/fe310: Add used registers to clobbers	2021-01-22 20:49:17 +01:00
Koen Zandberg	9979646b8b	cpu/fe310: Inline thread_yield_higher function	2021-01-19 11:03:21 +01:00