AbleOS/ableos
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double skill issue

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This commit is contained in:
koniifer 2024-11-10 20:07:03 +00:00
parent bae58ade61
commit 97ceb12d6e
1 changed files with 2 additions and 2 deletions
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4
sysdata/libraries/stn/src/math.hb
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@ -40,7 +40,7 @@ $TABLE_SIZE := @as(i32, 256)
sin := fn(theta: f32): f32 {
si := @fti(theta * 0.5 * @itf(TABLE_SIZE) / PI)
d := theta - @itf(si) * 2.0 * PI / @itf(TABLE_SIZE)
d := theta - @floatcast(@itf(si)) * 2.0 * PI / @floatcast(@itf(TABLE_SIZE))
ci := si + TABLE_SIZE / 4 & TABLE_SIZE - 1
si &= TABLE_SIZE - 1
return SIN_TABLE[@bitcast(si)] + (SIN_TABLE[@bitcast(ci)] - 0.5 * SIN_TABLE[@bitcast(si)] * d) * d
@ -48,7 +48,7 @@ sin := fn(theta: f32): f32 {
cos := fn(theta: f32): f32 {
ci := @fti(theta * 0.5 * @itf(TABLE_SIZE) / PI)
d := theta - @itf(ci) * 2.0 * PI / @itf(TABLE_SIZE)
d := theta - @floatcast(@itf(ci)) * 2.0 * PI / @floatcast(@itf(TABLE_SIZE))
si := ci + TABLE_SIZE / 4 & TABLE_SIZE - 1
ci &= TABLE_SIZE - 1
return SIN_TABLE[@bitcast(si)] - (SIN_TABLE[@bitcast(ci)] + 0.5 * SIN_TABLE[@bitcast(si)] * d) * d