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| author | Jeffrey Walton <noloader@gmail.com> | 2022-04-06 00:14:02 -0400 |
|---|---|---|
| committer | Jeffrey Walton <noloader@gmail.com> | 2022-04-06 00:14:02 -0400 |
| commit | 59895be61b03f973416724cfe0274693ce73b6a1 (patch) | |
| tree | 0626d7a99a5ae8499a9e7f0934eb72a97fce0baf /x64dll.asm | |
| parent | 48377cac698b82b85f3beb1c6dbbd135cdfd49f6 (diff) | |
| download | cryptopp-git-59895be61b03f973416724cfe0274693ce73b6a1.tar.gz | |
Avoid using stack space for CPUID64 (GH #1116)
Diffstat (limited to 'x64dll.asm')
| -rw-r--r-- | x64dll.asm | 4 |
1 files changed, 2 insertions, 2 deletions
@@ -1998,7 +1998,7 @@ XGETBV64 ENDP ALIGN 8
CPUID64 PROC
;; preserve per ABI
- push rbx
+ mov r9, rbx
;; eax = func
mov rax, rcx
;; ecx = subfunc
@@ -2011,7 +2011,7 @@ CPUID64 PROC mov [r8+8], ecx
mov [r8+12], edx
;; restore
- pop rbx
+ mov rbx, r9
;; return
mov rax, 1
ret
|