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/** bug-3778.c: Incorrect top byte on 24-bit function pointers
*/
#include <testfwk.h>
int j;
#if defined(__SDCC_stm8) && defined(__SDCC_MODEL_LARGE) // Fill lower 32KB of flash, so f1 or f2 is above 0x10000.
#define ARRAYSIZE 32000
long k;
void dummyfunc(void)
{
switch(k)
{
case 1:
j = (j + 1) % (j - 1);
case 2:
j = (j - 1) % (j + 1);
case 3:
j = (j + 1) % (j + 1);
case 4:
j = (j - 1) % (j - 1);
case 5:
j = (j + 2) % (j - 2);
case 6:
j = (j - 2) % (j + 2);
}
}
#else
#define ARRAYSIZE 1
#endif
const char c[ARRAYSIZE];
void f1(char c, int i) __reentrant
{
j = c + i;
}
void g1(void(*ptr)(char, int) __reentrant)
{
(*ptr)(1, 2); // Topmost byte of ptr incorrectly assumed to be 0.
}
void h1(void)
{
g1(&f1);
}
void f2(char c, int i) __reentrant
{
j = c + i;
}
void g2(void(*ptr)(char, int) __reentrant)
{
(*ptr)(2, 3); // Topmost byte of ptr incorrectly assumed to be 0.
}
void h2(void)
{
g2(&f2);
}
void
testBug(void)
{
h1();
ASSERT(j == 3);
h2();
ASSERT(j == 5);
}
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