CREDIT DOWN: Difference between revisions
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== CREDIT_DOWN ($C00456) == | |||
Input: | [[System ROM]] routine called to deduct credits. | ||
Input: Credits to deduct in {{BR|BIOS_CREDIT_DEC1}} for player 1, and {{BR|BIOS_CREDIT_DEC2}} for player 2. | |||
Also updates the MVS [[book keeping]]. | Also updates the MVS [[book keeping]]. | ||
[[Category:BIOS calls]] | [[Category:BIOS calls]] | ||
Latest revision as of 05:25, 28 February 2017
CREDIT_DOWN ($C00456)
System ROM routine called to deduct credits.
Input: Credits to deduct in BIOS_CREDIT_DEC1 ( $10FDB0) for player 1, and BIOS_CREDIT_DEC2 ( $10FDB1) for player 2.
Also updates the MVS book keeping.