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Dashboard: SPBLB

[BBC Micro disc version, Flight]

Name: SPBLB [Show more] Type: Subroutine Category: Dashboard Summary: Light up the space station indicator ("S") on the dashboard
Context: See this subroutine in context in the source code Variations: See code variations for this subroutine in the different versions References: This subroutine is called as follows: * KS4 calls SPBLB * NWSPS calls SPBLB * RES2 calls SPBLB
.SPBLB LDA #24*8 \ The space station bulb is in character block number 24 \ with each character taking 8 bytes, so this sets the \ low byte of the screen address of the character block \ we want to draw to LDX #LO(SPBT) \ Set (Y X) to point to the character definition in SPBT LDY #HI(SPBT) \ Fall through into BULB to draw the space station bulb