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Optimised T0 generated code: when possible (at most 256 words), word calls are encoded over one byte, even in the 128..255 range.

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This commit is contained in:
Thomas Pornin 2016-12-12 19:58:49 +01:00
parent e61ad42191
commit fb7052216d
8 changed files with 114 additions and 20 deletions
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14
T0/CodeElementUIntExpr.cs
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@ -38,16 +38,26 @@ class CodeElementUIntExpr : CodeElement {
this.off = off;
}
/* obsolete
internal override int Length {
get {
return Encode7EUnsigned(val, null)
+ (cx.GetMaxBitLength(off) + 6) / 7;
}
}
*/
internal override int Encode(BlobWriter bw)
internal override int GetLength(bool oneByteCode)
{
int len1 = Encode7EUnsigned(val, bw);
int len = oneByteCode ? 1 : Encode7EUnsigned(val, null);
return len + (cx.GetMaxBitLength(off) + 6) / 7;
}
internal override int Encode(BlobWriter bw, bool oneByteCode)
{
int len1 = oneByteCode
? EncodeOneByte(val, bw)
: Encode7EUnsigned(val, bw);
int len2 = (cx.GetMaxBitLength(off) + 6) / 7;
bw.Append(String.Format("T0_INT{0}({1})",
len2, cx.ToCExpr(off)));