sdcc-3.9.0 fork implementing GNU assembler syntax

This fork aims to provide better support for stm8-binutils

1 files changed, 73 insertions, 0 deletions

diff --git a/support/regression/tests/bug3475656.c b/support/regression/tests/bug3475656.c
new file mode 100644
index 0000000..23ee19a
--- /dev/null
+++ b/support/regression/tests/bug3475656.c
@@ -0,0 +1,73 @@
+/*
+  bug3475656.c
+
+  Digits in output were reversed (e.g. 192 was written as "291").
+*/
+
+#include <testfwk.h>
+
+#ifdef __SDCC
+#pragma disable_warning 85
+#endif
+
+#define UCHAR   unsigned char
+#define USHORT  unsigned short
+#define PCHAR   unsigned char *
+
+UCHAR mod_16x8(USHORT s16, UCHAR i8)
+{
+    return(s16 % i8);
+}
+
+USHORT div_16x8(USHORT s16, UCHAR i8)
+{
+    return(s16 / i8);
+}
+
+#if 1
+void itoa(USHORT sVal, PCHAR pBuf, UCHAR iRadix)
+{
+    PCHAR p;            // pointer to traverse string
+    PCHAR pFirstDigit;  // pointer to first digit
+    UCHAR iTmp;         // temp UCHAR
+
+    p = pBuf;
+    pFirstDigit = p;    // save pointer to first digit
+
+    do 
+    {
+        iTmp = mod_16x8(sVal, iRadix);
+        sVal = div_16x8(sVal, iRadix);
+
+        // convert to ascii and store
+        *p++ = (iTmp > 9) ? iTmp - 10 + 'A' : iTmp + '0';  // a letter or a digit
+    } while (sVal > 0);
+
+    // We now have the digit of the number in the buffer, but in reverse order.  Thus we reverse them now.
+
+    *p-- = '\0';               // terminate string; p points to last digit
+
+    do
+    {
+        iTmp = *p;
+        *p = *pFirstDigit;
+        *pFirstDigit = iTmp;   // swap *p and *pFirstDigit
+        --p;
+        ++pFirstDigit;         // advance to next two digits
+    } while (pFirstDigit < p); // repeat until halfway
+}
+#endif
+
+void testBug(void)
+{
+    unsigned char c[8];
+    unsigned short i;
+
+    i = 192;
+#if 1
+    itoa(i, c, 10);
+    ASSERT(c[0] == '1');
+    ASSERT(c[1] == '9');
+    ASSERT(c[2] == '2');
+#endif
+}