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Version Code Register: Difference between revisions

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(open bus value)
(→‎References: fixed refs)
 
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=== References ===
=== References ===
* 4.1.46 on [https://archive.org/details/SNESDevManual/book2/page/n56 page 1-4-35 of Book II] of the official Super Nintendo development manual
# 4.1.46 on [https://archive.org/details/SNESDevManual/book2/page/n56 page 1-4-35 of Book II] of the official Super Nintendo development manual
# https://forums.nesdev.org/viewtopic.php?p=237540#p237540
# https://forums.nesdev.org/viewtopic.php?p=237540#p237540


[[Category:SA-1]]
[[Category:SA-1]]
[[Category:Registers]]
[[Category:Registers]]

Latest revision as of 17:29, 20 August 2024

VC is 8 bits wide, located at 230Eh on the SA-1. It is supposed to indicate the SA-1 device version[1], but actually returns open bus:[2]

  • Reading $230E returns $23
  • Reading $80:230E returns $80

References

  1. 4.1.46 on page 1-4-35 of Book II of the official Super Nintendo development manual
  2. https://forums.nesdev.org/viewtopic.php?p=237540#p237540