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Direct Page Bit Relative Addressing: Difference between revisions

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* [[BBC]]
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Both of which are three bytes long.  The last byte is the target relative address to jump to.
Both of which are three bytes long.  The middle byte is which direct page location the bit to test lives in.  The last byte is the target relative address to jump to.


==== Syntax ====
==== Syntax ====

Revision as of 06:09, 5 January 2025

Direct Page Bit Relative Addressing is an addressing mode supported by the SPC700, used by these instructions:

Both of which are three bytes long. The middle byte is which direct page location the bit to test lives in. The last byte is the target relative address to jump to.

Syntax

BBS dp, bit, rel
BBC dp, bit, rel

See Also

Reference

  • Figure 3-8-3 Memory Access Addressing Effective Address on page 3-8-9 of Book I of the official Super Nintendo development manual