diff options
Diffstat (limited to 'results/classifier/zero-shot-user-mode/instruction/1368')
| -rw-r--r-- | results/classifier/zero-shot-user-mode/instruction/1368 | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/results/classifier/zero-shot-user-mode/instruction/1368 b/results/classifier/zero-shot-user-mode/instruction/1368 new file mode 100644 index 000000000..200a40326 --- /dev/null +++ b/results/classifier/zero-shot-user-mode/instruction/1368 @@ -0,0 +1,44 @@ +instruction: 0.662 +syscall: 0.180 +runtime: 0.158 + + + +unexpect rax value +Description of problem: +- When I execute "mov -0x8(%rbp), %rax" and "movq 0xb8000, (%rax)", the value of rax should be 0x7fedf but it is 0x7fefe. It is 1 less. +Steps to reproduce: +- 1. Code currently executed +<pre> +(gdb) x/2i $pc +=> 0x2202 <vga_init+12>: mov -0x8(%rbp),%rax + 0x2206 <vga_init+16>: movq $0xb8000,(%rax) +</pre> +- 2. Value of memory address -0x8(%rbp) +<pre> +(gdb) x /xg $rbp-0x8 +0x7fec8: 0x000000000007fedf +</pre> +- 3. Value of rax before execution +<pre> +(gdb) p /x $rax +$1 = 0xfffffffd +</pre> +- 4. Value of rax after execution +<pre> +(gdb) p /x $rax +$1 = 0x7fedf +</pre> +It's all right so far. +- 5. View the current execution code again +<pre> +(gdb) x/i $pc +=> 0x2207 <vga_init+17>: movl $0xb8000,(%rax) +</pre> +the code address changed from 0x2206 to 0x2207 and the code changed from "movq xx, xx" to "movl xx, xx".<br> +Now rax is 0x7fedf. +- 6. After execution<br> +After executing "movl $0xb8000,(%rax)"<br> +The rax change to 0x7fede +Additional information: + |