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Diffstat (limited to 'results/classifier/semantic-bugs/instruction/2317')
| -rw-r--r-- | results/classifier/semantic-bugs/instruction/2317 | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/results/classifier/semantic-bugs/instruction/2317 b/results/classifier/semantic-bugs/instruction/2317 deleted file mode 100644 index 0acfd4575..000000000 --- a/results/classifier/semantic-bugs/instruction/2317 +++ /dev/null @@ -1,51 +0,0 @@ -instruction: 0.951 -device: 0.841 -socket: 0.672 -graphic: 0.665 -vnc: 0.650 -network: 0.620 -semantic: 0.613 -assembly: 0.550 -boot: 0.545 -mistranslation: 0.480 -other: 0.332 -KVM: 0.048 - -SH4: ADDV instruction not emulated properly -Description of problem: -ADDV opcode is emulated incorrectly. - -The documentation says: - -`ADDV Rm, Rn Rn + Rm -> Rn, overflow -> T` - -What Qemu actually emulates: - -`ADDV Rm, Rn Rn + Rm -> Rm, overflow -> T` -Steps to reproduce: -```c -#include <stdio.h> - -int main(void) -{ - register unsigned int a asm("r8") = 0x7fffffff; - register unsigned int b asm("r9") = 1; - register unsigned int c asm("r10"); - - asm volatile("clrt\n" - "addv %2,%0\n" - "movt %1\n" - : "+r"(a), "=r"(c) : "r"(b) :); - - printf("Values: a=0x%x b=0x%x c=0x%x\n", a, b, c); - - return 0; -} - -``` -Additional information: -Tested on real hardware (SEGA Dreamcast, GCC 15.0), the program above prints: -`Values: a=0x80000000 b=0x1 c=0x1` - -Running with Qemu (and GCC 13.0), the same program prints: -`Values: a=0x7fffffff b=0x80000000 c=0x1` |