xref: /freebsd/contrib/bearssl/T0/CodeElementUIntExpr.cs (revision 2aaf9152a852aba9eb2036b95f4948ee77988826)
1*0957b409SSimon J. Gerraty /*
2*0957b409SSimon J. Gerraty  * Copyright (c) 2016 Thomas Pornin <pornin@bolet.org>
3*0957b409SSimon J. Gerraty  *
4*0957b409SSimon J. Gerraty  * Permission is hereby granted, free of charge, to any person obtaining
5*0957b409SSimon J. Gerraty  * a copy of this software and associated documentation files (the
6*0957b409SSimon J. Gerraty  * "Software"), to deal in the Software without restriction, including
7*0957b409SSimon J. Gerraty  * without limitation the rights to use, copy, modify, merge, publish,
8*0957b409SSimon J. Gerraty  * distribute, sublicense, and/or sell copies of the Software, and to
9*0957b409SSimon J. Gerraty  * permit persons to whom the Software is furnished to do so, subject to
10*0957b409SSimon J. Gerraty  * the following conditions:
11*0957b409SSimon J. Gerraty  *
12*0957b409SSimon J. Gerraty  * The above copyright notice and this permission notice shall be
13*0957b409SSimon J. Gerraty  * included in all copies or substantial portions of the Software.
14*0957b409SSimon J. Gerraty  *
15*0957b409SSimon J. Gerraty  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16*0957b409SSimon J. Gerraty  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17*0957b409SSimon J. Gerraty  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18*0957b409SSimon J. Gerraty  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19*0957b409SSimon J. Gerraty  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20*0957b409SSimon J. Gerraty  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21*0957b409SSimon J. Gerraty  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22*0957b409SSimon J. Gerraty  * SOFTWARE.
23*0957b409SSimon J. Gerraty  */
24*0957b409SSimon J. Gerraty 
25*0957b409SSimon J. Gerraty using System;
26*0957b409SSimon J. Gerraty 
27*0957b409SSimon J. Gerraty class CodeElementUIntExpr : CodeElement {
28*0957b409SSimon J. Gerraty 
29*0957b409SSimon J. Gerraty 	uint val;
30*0957b409SSimon J. Gerraty 	TPointerExpr cx;
31*0957b409SSimon J. Gerraty 	int off;
32*0957b409SSimon J. Gerraty 
CodeElementUIntExpr(uint val, TPointerExpr cx, int off)33*0957b409SSimon J. Gerraty 	internal CodeElementUIntExpr(uint val,
34*0957b409SSimon J. Gerraty 		TPointerExpr cx, int off) : base()
35*0957b409SSimon J. Gerraty 	{
36*0957b409SSimon J. Gerraty 		this.val = val;
37*0957b409SSimon J. Gerraty 		this.cx = cx;
38*0957b409SSimon J. Gerraty 		this.off = off;
39*0957b409SSimon J. Gerraty 	}
40*0957b409SSimon J. Gerraty 
41*0957b409SSimon J. Gerraty 	/* obsolete
42*0957b409SSimon J. Gerraty 	internal override int Length {
43*0957b409SSimon J. Gerraty 		get {
44*0957b409SSimon J. Gerraty 			return Encode7EUnsigned(val, null)
45*0957b409SSimon J. Gerraty 				+ (cx.GetMaxBitLength(off) + 6) / 7;
46*0957b409SSimon J. Gerraty 		}
47*0957b409SSimon J. Gerraty 	}
48*0957b409SSimon J. Gerraty 	*/
49*0957b409SSimon J. Gerraty 
GetLength(bool oneByteCode)50*0957b409SSimon J. Gerraty 	internal override int GetLength(bool oneByteCode)
51*0957b409SSimon J. Gerraty 	{
52*0957b409SSimon J. Gerraty 		int len = oneByteCode ? 1 : Encode7EUnsigned(val, null);
53*0957b409SSimon J. Gerraty 		return len + (cx.GetMaxBitLength(off) + 6) / 7;
54*0957b409SSimon J. Gerraty 	}
55*0957b409SSimon J. Gerraty 
Encode(BlobWriter bw, bool oneByteCode)56*0957b409SSimon J. Gerraty 	internal override int Encode(BlobWriter bw, bool oneByteCode)
57*0957b409SSimon J. Gerraty 	{
58*0957b409SSimon J. Gerraty 		int len1 = oneByteCode
59*0957b409SSimon J. Gerraty 			? EncodeOneByte(val, bw)
60*0957b409SSimon J. Gerraty 			: Encode7EUnsigned(val, bw);
61*0957b409SSimon J. Gerraty 		int len2 = (cx.GetMaxBitLength(off) + 6) / 7;
62*0957b409SSimon J. Gerraty 		bw.Append(String.Format("T0_INT{0}({1})",
63*0957b409SSimon J. Gerraty 			len2, cx.ToCExpr(off)));
64*0957b409SSimon J. Gerraty 		return len1 + len2;
65*0957b409SSimon J. Gerraty 	}
66*0957b409SSimon J. Gerraty }
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