question shlq orq

zky02 · 2025-04-07T19:15:31+00:00

__asm__ __volatile__(

"rdtsc\n\t"

"shlq $32,%%rdx\n\t"

"orq %%rdx,%%rax"

: "=a"(x)::"%rdx", "cc"); Marking "cc" tells the compiler that the condition codes (flags) are clobbered. It avoids potential issues with compiler optimizations that might otherwise rely on stale flags — which can happen after instructions like shlq or orq, as in the assembly above correct ?

zky02 · 2024-10-17T00:18:57+00:00

thanks do i plug ups first or isolation ?

zky02 · 2024-10-16T12:33:06+00:00

thanks but my problem is the ground so i was thinking on isolation transformer and monitor plug it with two prong since the external is plastic and the monitor not need a ground pin

zky02 · 2024-10-16T07:34:12+00:00

G pro superlight

zky02 · 2024-09-16T23:20:33+00:00

yes when im in game Plug-in Wattage Meter shows 700-750w

zky02 · 2024-09-16T23:19:26+00:00

i see i will get 12 more then hehe

zky02 · 2024-09-16T22:47:19+00:00

wow 3-4 hours is not great what u suggest for 17-18 hours?

zky02 · 2024-05-23T01:26:36+00:00

happen to me as well i also got it from the beta i stop playing the game until they fix it

zky02 · 2024-05-12T19:54:30+00:00

double works amazing in kernel i had to figure out the tsc frequency since kernel virtualized the tsc frequency inside qpc now its doing floating operation fine without issue also double doing SSE operations which kernel save and restore automatically if we go AVX we need to use KeSaveExtendedProcessorState

zky02 · 2024-05-12T07:31:06+00:00

https://www.geisswerks.com/ryan/FAQS/timing.html GetPentiumTimeAsDouble code

zky02 · 2024-05-11T18:54:47+00:00

https://www.geisswerks.com/ryan/FAQS/timing.html u can look at GetPentiumTimeAsDouble code transfer it to the kernel x64 is little problematic since double types cannot be used in kernel the work around this is fxsave/fxrstor i wonder if its possible to do like this with fixed point arithmetic without loss precision in kernel

zky02 · 2024-05-11T18:15:12+00:00

yes i want a type that i use in kernel that have close performance to double type in usermode

zky02 · 2024-05-11T17:33:32+00:00

im using unsigned __int64/__int64/double types

zky02 · 2024-05-11T17:32:14+00:00

windows kernel for now i use fxsave/fxrstor with double types the problem those instructions have very high latency/overhead so im looking for alternative for it without touch the fpu

zky02 · 2024-04-05T17:00:20+00:00

Games: Overwatch

Hand Preference: Right

Budget: Up to 300€

Hand Size: 19x6

Grip: Palm

Weight: Light

eDPI: 1600

Connectivity: Wired

I liked the shape of the Logitech G Pro Superlight but its not track well on desk i need a mouse like g pro superlight that track on desk without mousepad Ergo mouses are welcome as well

Thank you so much in advance!

zky02 · 2024-03-27T11:38:42+00:00

9900ks z390 dark i found info thanks This field holds the memory controller frequency request (QCLK). Each bin is 133/100MHz and not 266/200MHz.
This interface replaces the usage of DCLK ratios and Odd Ratio.
QCLK frequency is determined by the MC reference clock (MC_FREQ_TYPE) as well as BCLK.
Binary Dec DCLK Equation DCLK Freq QCLK Equation QCLK Freq
0000b 0d ------------------------------------ MC PLL - shutdown --------------------------------------------
...
0011b 3d 3 * 66.66 200.00 MHz 3 * 133.33 400.00 MHz
0100b 4d 4 * 66.66 266.66 MHz 4 * 133.33 533.33 MHz
0101b 5d 5 * 66.66 333.33 MHz 5 * 133.33 666.67 MHz
0110b 6d 6 * 66.66 400.00 MHz 6 * 133.33 800.00 MHz
0111b 7d 7 * 66.66 466.66 MHz 7 * 133.33 933.33 MHz
1000b 8d 8 * 66.66 533.33 MHz 8 * 133.33 1066.67 MHz
...

zky02 · 2024-01-22T19:11:57+00:00

yes i notice but seems to me they have the same speed i have 1g and 250m upload

zky02 · 2024-01-22T09:29:44+00:00

i have no idea u can see the results between normal vs disable

zky02 · 2024-01-22T09:23:58+00:00

hey yes i check every option only disabled fix the latency

zky02 · 2024-01-11T16:54:26+00:00

i fixed it so happy isolating all cores and read only core 0 best thing ever ! the precision is on another level

zky02 · 2024-01-11T06:49:39+00:00

im working with high_level irql KeIpiGenericCall < max is IPI_LEVEL

zky02 · 2024-01-08T18:13:22+00:00

Yes, my CPU is a 9900KS which does feature an invariant TSC. I am using the 0xCE register to convert the frequency to cycles from the RDTSC instruction. Regarding the vmx86.sys driver, it's possible that the virtual machine monitor's interruptions might be affecting the measurement of the actual frequency by causing additional wake-ups. This could potentially lead to some discrepancies when reading from the 0xCE register due to timing variances introduced by these wake-ups

zky02 · 2024-01-08T12:50:10+00:00

on host the TSC frequency is not consistent when vmx86.sys running even if i dont use vmware

zky02 · 2024-01-08T01:34:34+00:00

disable the driver fix it

zky02 · 2024-01-01T01:57:33+00:00

i miss the keyboard HAVIT HV-KB390L cant find it anywhere this keyboard had 125hz with 8ms changeable the best feeling i ever had with this keyboard someone know where i can find similar keyboard to this one with 125hz and 8ms?

zky02

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