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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-06-01 21:35:14 +0200 |
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| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-06-01 21:35:14 +0200 |
| commit | 3e4c5a6261770bced301b5e74233e7866166ea5b (patch) | |
| tree | 9379fddaba693ef8a045da06efee8529baa5f6f4 /gitlab/issues_text/target_i386/host_missing/accel_TCG/1372 | |
| parent | e5634e2806195bee44407853c4bf8776f7abfa4f (diff) | |
| download | qemu-analysis-3e4c5a6261770bced301b5e74233e7866166ea5b.tar.gz qemu-analysis-3e4c5a6261770bced301b5e74233e7866166ea5b.zip | |
clean up repository
Diffstat (limited to 'gitlab/issues_text/target_i386/host_missing/accel_TCG/1372')
| -rw-r--r-- | gitlab/issues_text/target_i386/host_missing/accel_TCG/1372 | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/gitlab/issues_text/target_i386/host_missing/accel_TCG/1372 b/gitlab/issues_text/target_i386/host_missing/accel_TCG/1372 deleted file mode 100644 index c0a7f3da2..000000000 --- a/gitlab/issues_text/target_i386/host_missing/accel_TCG/1372 +++ /dev/null @@ -1,20 +0,0 @@ -x86 BEXTR semantic bug -Description of problem: -The result of instruction BEXTR is different with from the CPU. The value of destination register is different. I think QEMU does not consider the operand size limit. -Steps to reproduce: -1. Compile this code -``` -void main() { - asm("mov rax, 0x17b3693f77fb6e9"); - asm("mov rbx, 0x8f635a775ad3b9b4"); - asm("mov rcx, 0xb717b75da9983018"); - asm("bextr eax, ebx, ecx"); -} -``` -2. Execute and compare the result with the CPU. - - CPU - - RAX = 0x5a - - QEMU - - RAX = 0x635a775a -Additional information: -This bug is discovered by research conducted by KAIST SoftSec. |