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Elite on the BBC Micro

Start and end: TT170 (Cassette version)

Name: TT170 [View in context] Type: Subroutine [Compare versions] Category: Start and end Summary: Main entry point for the Elite game code Deep dive: Program flow of the main game loop
This is the main entry point for the main game code.
.TT170 LDX #&FF \ Set the stack pointer to &01FF, which is the standard TXS \ location for the 6502 stack, so this instruction \ effectively resets the stack. We need to do this \ because the loader code in elite-loader.asm pushes \ code onto the stack, and this effectively removes that \ code so we start afresh \ Fall through into BR1 to start the game