sdcc-3.9.0 fork implementing GNU assembler syntax

This fork aims to provide better support for stm8-binutils

1 files changed, 70 insertions, 0 deletions

diff --git a/support/regression/tests/bug-1929.c b/support/regression/tests/bug-1929.c
new file mode 100644
index 0000000..d48a3cf
--- /dev/null
+++ b/support/regression/tests/bug-1929.c
@@ -0,0 +1,70 @@
+/*
+   bug-1929.c 
+ */
+
+#include <testfwk.h>
+
+#define MASK 0x0f
+
+unsigned char reg0;
+unsigned char reg1;
+signed char reg2;
+signed char reg3;
+
+void tAnd (void)
+{
+  reg0 &= ~MASK;
+  ASSERT (reg0 == 0xa0);
+
+  reg1 &= MASK;
+  ASSERT (reg1 == 0x0a);
+
+  reg2 &= ~MASK;
+  ASSERT ((unsigned char) reg2 == 0xa0);
+
+  reg3 &= MASK;
+  ASSERT (reg3 == 0x0a);
+}
+
+void tOr (void)
+{
+  reg0 |= ~MASK;
+  ASSERT (reg0 == 0xfa);
+
+  reg1 |= MASK;
+  ASSERT (reg1 == 0xaf);
+
+  reg2 |= ~MASK;
+  ASSERT ((unsigned char) reg2 == 0xfa);
+
+  reg3 |= MASK;
+  ASSERT ((unsigned char) reg3 == 0xaf);
+}
+
+void tXor (void)
+{
+  reg0 ^= ~MASK;
+  ASSERT (reg0 == 0x5a);
+
+  reg1 ^= MASK;
+  ASSERT (reg1 == 0xa5);
+
+  reg2 ^= ~MASK;
+  ASSERT (reg2 == 0x5a);
+
+  reg3 ^= MASK;
+  ASSERT ((unsigned char) reg3 == 0xa5);
+}
+
+void testBug (void)
+{
+  reg0 = reg1 = reg2 = reg3 = 0xaa;
+  tAnd();
+
+  reg0 = reg1 = reg2 = reg3 = 0xaa;
+  tOr();
+
+  reg0 = reg1 = reg2 = reg3 = 0xaa;
+  tXor();
+}
+