* bit0 - CF - Carry Flag: 1 on unsigned overflow
|| Flags are affected by most operations.
The BF is bit does not a physical flag implemented in a registeractually exist inside the 6502. It The BF bit only appears on exists in the status flag byte pushed to the stack when . When the P register flags are restored (via PLP or RTI), the BF bit is pushed to itdiscarded.
PHP (Push Processor Status) and PLP (Pull Processor Status) can be used to set or retrieve P directly via the stack.