Freeze High Nibble Flag

The Freeze High Nibble Flag (bit 3) is on the Super FX.

When clear, the value of all 8 bits in the color register are set.

When set, the high 4 bits of the color register are fixed and only the value of the low 4 bits can be set.

See Also

• Dither Flag
• CMODE
• COLOR
• GETC
• PLOT

Reference

• Table 2-8-1 on page 2-8-9 of Book II of official Super Nintendo development manual
• 8.1.4.4 on page 2-8-12 on Book II, lbid.