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BBC Micro Elite

Dashboard: ECBLB2 (Cassette version)

Name: ECBLB2 [View in context] Type: Subroutine Category: Dashboard Summary: Start up the E.C.M. (indicator, start countdown and make sound)
Light up the E.C.M. indicator bulb on the dashboard, set the E.C.M. countdown timer to 32, and start making the E.C.M. sound.
.ECBLB2 LDA #32 \ Set the E.C.M. countdown timer in ECMA to 32 STA ECMA ASL A \ Call the NOISE routine with A = 64 to make the sound JSR NOISE \ of the E.C.M. being switched on \ Fall through into ECBLB to light up the E.C.M. bulb