add to bittwiddling test

edadma · Apr 3, 2018 · 7a7c4f5 · 7a7c4f5
1 parent 0ac5b4c
commit 7a7c4f5
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Showing 3 changed files with 44 additions and 20 deletions.
diff --git a/src/test/scala/ExamplesNoCompressed.scala b/src/test/scala/ExamplesNoCompressed.scala
@@ -126,6 +126,7 @@ class ExamplesNoCompressed extends FreeSpec with PropertyChecks with Matchers {
 			"""
 				|5, 0, 5
 				|0, 20, 57, 77
+				|20, 57
 			""".trim.stripMargin
 	}
 

diff --git a/tests/bittwiddling.c b/tests/bittwiddling.c
@@ -52,6 +52,7 @@ printn( int n ) {
 int
 abs( int x ) {
   const int bit31 = x >> 31;
+
   return (x ^ bit31) - bit31;
 }
 
@@ -63,6 +64,13 @@ modifyBit( int x, unsigned char position, int newState ) {
   return (x & ~mask) | (-state & mask);
 }
 
+int
+flipBit( int x, unsigned char position ) {
+  int mask = 1 << position;
+
+  return x ^ mask;
+}
+
 void
 main() {
 	printn( abs(5) );
@@ -80,4 +88,9 @@ main() {
 	print( ", " );
 	printn( modifyBit(0x77, 5, 1) );//0x77
 	println();
+
+	printn( flipBit(0, 5) );//20
+	print( ", " );
+	printn( flipBit(0x77, 5) );//57
+	println();
 }
diff --git a/tests/bittwiddling.hex b/tests/bittwiddling.hex
@@ -1,6 +1,6 @@
 
 Hex dump of section '.text':
-  0x00010080 37010100 ef00c033 73500000 00000000 7......3sP......
+  0x00010080 37010100 ef000039 73500000 00000000 7......9sP......
   0x00010090 00000000 00000000 00000000 00000000 ................
   0x000100a0 00000000 00000000 00000000 00000000 ................
   0x000100b0 00000000 00000000 00000000 00000000 ................
@@ -17,8 +17,8 @@ Hex dump of section '.text':
   0x00010160 03340100 13010101 67800000 130101fc .4......g.......
   0x00010170 233c8102 13040104 93070500 13870500 #<..............
   0x00010180 2330c4fc 2326f4fc 93070700 2324f4fc #0..#&......#$..
-  0x00010190 b7070100 03b7074b 2338e4fc 1387074b .......K#8.....K
-  0x000101a0 03378700 233ce4fc 9387074b 83c70701 .7..#<.....K....
+  0x00010190 b7070100 03b78754 2338e4fc 13878754 .......T#8.....T
+  0x000101a0 03378700 233ce4fc 93878754 83c70701 .7..#<.....T....
   0x000101b0 2300f4fe 833704fc 93871702 2334f4fe #....7......#4..
   0x000101c0 8327c4fc 2322f4fe 8327c4fc 9b870700 .'..#"...'......
   0x000101d0 63d80700 832744fe bb07f040 2322f4fe c....'D....@#"..
@@ -52,24 +52,34 @@ Hex dump of section '.text':
   0x00010390 832784fe bb07f040 9b860700 8327c4fe .'.....@.....'..
   0x000103a0 b3f7f600 9b870700 b367f700 9b870700 .........g......
   0x000103b0 13850700 03348102 13010103 67800000 .....4......g...
-  0x000103c0 130101ff 23341100 23308100 13040101 ....#4..#0......
-  0x000103d0 13055000 eff01fec b7070100 1385874c ..P............L
-  0x000103e0 eff01fd1 13050000 eff0dfea b7070100 ................
-  0x000103f0 1385874c eff0dfcf 13055000 eff09fe9 ...L......P.....
-  0x00010400 eff01fd4 13060000 93055000 13050000 ..........P.....
-  0x00010410 eff01ff2 93070500 13850700 eff09fe7 ................
-  0x00010420 b7070100 1385874c eff09fcc 13061000 .......L........
-  0x00010430 93055000 13050000 eff09fef 93070500 ..P.............
-  0x00010440 13850700 eff01fe5 b7070100 1385874c ...............L
-  0x00010450 eff01fca 13060000 93055000 13057007 ..........P...p.
-  0x00010460 eff01fed 93070500 13850700 eff09fe2 ................
-  0x00010470 b7070100 1385874c eff09fc7 13061000 .......L........
-  0x00010480 93055000 13057007 eff09fea 93070500 ..P...p.........
-  0x00010490 13850700 eff01fe0 eff09fca 13000000 ................
-  0x000104a0 83308100 03340100 13010101 67800000 .0...4......g...
+  0x000103c0 130101fd 23348102 13040103 93070500 ....#4..........
+  0x000103d0 13870500 232ef4fc 93070700 a30df4fc ....#...........
+  0x000103e0 8347b4fd 9b870700 13071000 bb17f700 .G..............
+  0x000103f0 2326f4fe 0327c4fd 8327c4fe b347f700 #&...'...'...G..
+  0x00010400 9b870700 13850700 03348102 13010103 .........4......
+  0x00010410 67800000 130101ff 23341100 23308100 g.......#4..#0..
+  0x00010420 13040101 13055000 eff0dfe6 b7070100 ......P.........
+  0x00010430 13850756 eff0dfcb 13050000 eff09fe5 ...V............
+  0x00010440 b7070100 13850756 eff09fca 13055000 .......V......P.
+  0x00010450 eff05fe4 eff0dfce 13060000 93055000 .._...........P.
+  0x00010460 13050000 eff0dfec 93070500 13850700 ................
+  0x00010470 eff05fe2 b7070100 13850756 eff05fc7 .._........V.._.
+  0x00010480 13061000 93055000 13050000 eff05fea ......P......._.
+  0x00010490 93070500 13850700 eff0dfdf b7070100 ................
+  0x000104a0 13850756 eff0dfc4 13060000 93055000 ...V..........P.
+  0x000104b0 13057007 eff0dfe7 93070500 13850700 ..p.............
+  0x000104c0 eff05fdd b7070100 13850756 eff05fc2 .._........V.._.
+  0x000104d0 13061000 93055000 13057007 eff05fe5 ......P...p..._.
+  0x000104e0 93070500 13850700 eff0dfda eff05fc5 .............._.
+  0x000104f0 93055000 13050000 eff09fec 93070500 ..P.............
+  0x00010500 13850700 eff01fd9 b7070100 13850756 ...............V
+  0x00010510 eff01fbe 93055000 13057007 eff05fea ......P...p..._.
+  0x00010520 93070500 13850700 eff0dfd6 eff05fc1 .............._.
+  0x00010530 13000000 83308100 03340100 13010101 .....0...4......
+  0x00010540 67800000                            g...
 
 
 Hex dump of section '.rodata':
-  0x000104b0 30313233 34353637 38394142 43444546 0123456789ABCDEF
-  0x000104c0 00000000 00000000 2c2000            ........, .
+  0x00010548 30313233 34353637 38394142 43444546 0123456789ABCDEF
+  0x00010558 00000000 00000000 2c2000            ........, .