Change Details

First, set the stack pointer right away, and zero the frame pointer. Second, switch the boot argument registers to the unused s3 and s4. This ensures the values will not be clobbered by function calls; they are consumed late in the assembly routine.

Switch the boot argument registers to the unused s3 and s4. This ensures the values will not be clobbered by SBI or function calls; they are consumed late in the assembly routine.

First, set the stack pointer right away, and zero the frame pointer. Second, sSwitch the boot argument registers to the unused s3 and s4. This ensures ensures the values will not be clobbered by SBI or function calls; they are consumed late in the assembly routine.