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add set bits function

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This commit is contained in:
Corwin Kuiper 2021-05-30 17:00:01 +01:00
parent 353fa23876
commit 5cdcfcc0b3
1 changed files with 5 additions and 0 deletions
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5
agb/src/display/object.rs
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@ -46,6 +46,11 @@ impl ObjectStandard {
} }
} }
fn set_bits(current: u16, value: u16, length: u16, shift: u16) -> u16 {
let mask: u16 = (1 << length) - 1;
(current & !(mask << shift)) | ((value & mask) << shift)
}
pub struct ObjectAttribute { pub struct ObjectAttribute {
a0: u16, a0: u16,
a1: u16, a1: u16,