The comment says {F000}, but CS is not F000 (unless uniflash is overwriting parts of the BIOS F000 segment with its own code).
CS is set by DOS when loading uniflash and can be any value (but not something in the Fxxx range). That means CS:CS will never point to any BIOS location.
The comment says {F000}, but CS is not F000 (unless uniflash is overwriting parts of the BIOS F000 segment with its own code).
CS is set by DOS when loading uniflash and can be any value (but not something in the Fxxx range). That means CS:CS will never point to any BIOS location.