sdcc-3.9.0 fork implementing GNU assembler syntax

This fork aims to provide better support for stm8-binutils

1 files changed, 100 insertions, 0 deletions

diff --git a/support/regression/tests/bug-2897.c b/support/regression/tests/bug-2897.c
new file mode 100644
index 0000000..e2b2028
--- /dev/null
+++ b/support/regression/tests/bug-2897.c
@@ -0,0 +1,100 @@
+/*
+    bug-?.c
+*/
+
+#include <testfwk.h>
+
+static const char *expect;
+
+int pc(int c)
+{
+  ASSERT (c == *expect++);
+}
+
+void printhex_le(unsigned char x)
+{
+  unsigned char n = x>>4;
+  if( n>9 ) pc('A'-10+n); else pc('0'+n); // Bug for n == 'a'. Works when >9 is replaced by >=10
+  n = x&0xF;
+  if( n>9 ) pc('A'-10+n); else pc('0'+n); // Bug for n == 'a'. Works when >9 is replaced by >=10
+}
+
+void printhex_leq(unsigned char x)
+{
+  unsigned char n = x>>4;
+  if( n>=10 ) pc('A'-10+n); else pc('0'+n);
+  n = x&0xF;
+  if( n>=10 ) pc('A'-10+n); else pc('0'+n);
+}
+
+void testBug(void)
+{
+  expect = "01";
+  printhex_le (0x01);
+  expect = "23";
+  printhex_le (0x23);
+  expect = "45";
+  printhex_le (0x45);
+  expect = "56";
+  printhex_le (0x56);
+  expect = "78";
+  printhex_le (0x78);
+  expect = "9A";
+  printhex_le (0x9a);
+  expect = "BC";
+  printhex_le (0xbc);
+  expect = "DE";
+  printhex_le (0xde);
+
+  expect = "10";
+  printhex_le (0x10);
+  expect = "32";
+  printhex_le (0x32);
+  expect = "54";
+  printhex_le (0x54);
+  expect = "65";
+  printhex_le (0x65);
+  expect = "87";
+  printhex_le (0x87);
+  expect = "A9";
+  printhex_le (0xa9);
+  expect = "CB";
+  printhex_le (0xcb);
+  expect = "ED";
+  printhex_le (0xed);
+
+  expect = "01";
+  printhex_leq (0x01);
+  expect = "23";
+  printhex_leq (0x23);
+  expect = "45";
+  printhex_leq (0x45);
+  expect = "56";
+  printhex_leq (0x56);
+  expect = "78";
+  printhex_leq (0x78);
+  expect = "9A";
+  printhex_leq (0x9a);
+  expect = "BC";
+  printhex_leq (0xbc);
+  expect = "DE";
+  printhex_leq (0xde);
+
+  expect = "10";
+  printhex_leq (0x10);
+  expect = "32";
+  printhex_leq (0x32);
+  expect = "54";
+  printhex_leq (0x54);
+  expect = "65";
+  printhex_leq (0x65);
+  expect = "87";
+  printhex_leq (0x87);
+  expect = "A9";
+  printhex_leq (0xa9);
+  expect = "CB";
+  printhex_leq (0xcb);
+  expect = "ED";
+  printhex_leq (0xed);
+}
+