Extract asmlib manipulations into separate block

1 files changed, 0 insertions, 53 deletions

diff --git a/contrib/libs/asmlib/rdtsc64.asm b/contrib/libs/asmlib/rdtsc64.asm
deleted file mode 100644
index 42a0e232032..00000000000
--- a/contrib/libs/asmlib/rdtsc64.asm
+++ /dev/null
@@ -1,53 +0,0 @@
-%include "defs.asm"
-
-;          RDTSC64.ASM

-;

-; Author:           Agner Fog

-; Date created:     2003

-; Last modified:    2008-10-16

-; Description:

-;

-; Copyright (c) 2009 GNU General Public License www.gnu.org/licenses

-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

-

-default rel

-

-global  ReadTSC: function

-

-SECTION .text  align=16

-

-; ********** ReadTSC function **********

-; C++ prototype:

-; extern "C" __int64 ReadTSC (void);

-

-; This function returns the value of the time stamp counter, which counts 

-; clock cycles. To count how many clock cycles a piece of code takes, call

-; Rdtsc before and after the code to measure and calculate the difference.

-

-; The number of clock cycles taken by the ReadTSC function itself is approximately:

-; Core 2:   730

-; Pentium 4:  700

-; Pentium II and Pentium III: 225

-; AMD Athlon 64, Opteron: 126

-; Does not work on 80386 and 80486.

-

-; Note that clock counts may not be fully reproducible on Intel Core and

-; Core 2 processors because the clock frequency can change. More reliable

-; instruction timings are obtained with the performance monitor counter

-; for "core clock cycles". This requires a kernel mode driver as the one

-; included with www.agner.org/optimize/testp.zip.

-

-ReadTSC:

-        push    rbx                    ; ebx is modified by cpuid

-        sub     eax, eax               ; 0

-        cpuid                          ; serialize

-        rdtsc                          ; read time stamp counter into edx:eax

-        shl     rdx, 32

-        or      rax, rdx               ; combine into 64 bit register        

-        push    rax

-        sub     eax, eax

-        cpuid                          ; serialize

-        pop     rax                    ; return value

-        pop     rbx

-        ret

-;ReadTSC ENDP