We've just updated MediaWiki and its underlying software. If anything doesn't look or work quite right, please mention it to us. --RanAS

Direct Page Bit Relative Addressing

From SnesLab
Revision as of 06:09, 5 January 2025 by Xetheria (talk | contribs) (what middle byte is)
Jump to: navigation, search

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