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Character Conversion DMA Parameters: Difference between revisions
From SnesLab
(# of horizontal characters) |
(bits 5&6 are zero) |
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| Line 6: | Line 6: | ||
Bits 2 to 4 are the power 2 should be raised to to yield the number of virtual VRAM horizontal characters. | Bits 2 to 4 are the power 2 should be raised to to yield the number of virtual VRAM horizontal characters. | ||
Bits 5 and 6 are zero. | |||
=== Reference === | === Reference === | ||
Revision as of 07:26, 22 December 2023
CDMA is 8 bits wide, located at 2231h. It is initialized to zero.
The low two bits determine the character conversion DMA color mode.
The 5A22 sets the most significant bit when character conversion 1 is completed.
Bits 2 to 4 are the power 2 should be raised to to yield the number of virtual VRAM horizontal characters.
Bits 5 and 6 are zero.
Reference
- 4.1.28 on page 1-4-21 of Book II of the official Super Nintendo development manual