qemu/tests/tcg/openrisc/test_addc.c
Sebastian Macke 14a650ec25 target-openrisc: Correct carry flag check of l.addc and l.addic test cases
The test cases did not correctly test for the carry flag.

Signed-off-by: Sebastian Macke <sebastian@macke.de>
Reviewed-by: Jia Liu <proljc@gmail.com>
Signed-off-by: Jia Liu <proljc@gmail.com>
2013-11-20 21:47:46 +08:00

41 lines
723 B
C

#include <stdio.h>
int main(void)
{
int a, b, c;
int result;
b = 0x01;
c = 0xffffffff;
result = 0;
__asm
("l.add r1, r1, r0\n\t" /* clear carry */
"l.addc %0, %1, %2\n\t"
: "=r"(a)
: "r"(b), "r"(c)
);
if (a != result) {
printf("first addc error\n");
return -1;
}
b = 0x01;
c = 0xffffffff;
result = 0x80000001;
__asm
("l.add r1, r1, r0\n\t" /* clear carry */
"l.addc %0, %1, %2\n\t"
"l.movhi %2, 0x7fff\n\t"
"l.ori %2, %2, 0xffff\n\t"
"l.addc %0, %1, %2\n\t"
: "=r"(a)
: "r"(b), "r"(c)
);
if (a != result) {
printf("addc error\n");
return -1;
}
return 0;
}