Skip to navigation

Elite on the BBC Micro

Flight: DENGY, Removed [Elite-A, Docked]

Name: DENGY, Removed [Show more] Type: Subroutine Category: Flight Summary: Drain some energy from the energy banks
Context: See this subroutine in context in the source code References: No direct references to this subroutine in this source file

Returns: Z flag Set if we have no energy left, clear otherwise
\ --- Mod: Original Acornsoft code removed: -----------> \.DENGY \ DEC ENERGY \ Decrement the energy banks in ENERGY \ PHP \ Save the flags on the stack \ BNE P%+5 \ If the energy levels are not yet zero, skip the \ \ following instruction \ INC ENERGY \ The minimum allowed energy level is 1, and we just \ \ reached 0, so increment ENERGY back to 1 \ PLP \ Restore the flags from the stack, so we return with \ \ the Z flag from the DEC instruction above \ RTS \ Return from the subroutine \ --- End of removed code ----------------------------->