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Universe: SOS1

[BBC Micro cassette version]

Name: SOS1 [Show more] Type: Subroutine Category: Universe Summary: Update the missile indicators, set up the planet data block
Context: See this subroutine in context in the source code References: This subroutine is called as follows: * SOLAR calls SOS1 * TT110 calls SOS1

Update the missile indicators, and set up a data block for the planet, but only setting the pitch and roll counters to 127 (no damping).
.SOS1 JSR msblob \ Reset the dashboard's missile indicators so none of \ them are targeted LDA #127 \ Set the pitch and roll counters to 127, so that's a STA INWK+29 \ clockwise roll and a diving pitch with no damping, so STA INWK+30 \ the planet's rotation doesn't slow down LDA tek \ Set A = 128 or 130 depending on bit 1 of the system's AND #%00000010 \ tech level in tek ORA #%10000000 JMP NWSHP \ Add a new planet to our local bubble of universe, \ with the planet type defined by A (128 is a planet \ with an equator and meridian, 130 is a planet with \ a crater)