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/* Test to reproduce a bug in the z80 compiler where A is used as the
left and right of an operand.
*/
#include <testfwk.h>
#include <string.h>
/* In the previous bug, both *p and val in the compare operation were
assigned into A due to *p being packed for ACC use into A.
*/
int
verifyBlock(char *p, char val, int len)
{
while (len--) {
if (*p++ != val) {
return 0;
}
}
return 1;
}
void
testOverlap(void)
{
char buf[20];
memset(buf, 12, sizeof(buf));
buf[12] = 13;
ASSERT(!verifyBlock(buf, 12, sizeof(buf)));
buf[12] = 12;
ASSERT(verifyBlock(buf, 12, sizeof(buf)));
}
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