83Plus:BCALLs:80CF
From WikiTI
Synopsis
Official Name: SetFlashLowerBound
BCALL Address: 80CF
This B_CALL sets the lower flash page executution boundary.
Inputs
A=Value to write to Port 23. Interrupts should be disabled.
Outputs
None
Destroys
None
Comments
This B_CALL writes the value in A to Port 23. The code is located on page 3Fh/7Fh. Flash must be unlocked before calling this entry point.
SetFlashLowerBound: nop nop im 1 di out (23h),a di ret