I wonder why I'm not allowed to replace:
(color_key is a DDCOLORKEY)
with:
It seems a if the compiler want me to add a PTR after the QWORD, but wouln't that mean something like "mov the qword @ 0 to color_key"?
Is there an better way of setting the color_key to zero fast, or is the two line code the only way?
(color_key is a DDCOLORKEY)
mov color_key.dwColorSpaceLowValue, 0
mov color_key.dwColorSpaceHighValue, 0with:
mov color_key, QWORD 0It seems a if the compiler want me to add a PTR after the QWORD, but wouln't that mean something like "mov the qword @ 0 to color_key"?
Is there an better way of setting the color_key to zero fast, or is the two line code the only way?
There is no instruction to move an immediate QWORD to a memory location - the MOV instruction doesn't support QWORDs at all.
immediate, erhm, sorry I realy never understood what that is.
:stupid: :stupid: :stupid:
:stupid: :stupid: :stupid:
An actual number...
mov eax, 7
7 is the actual number you want to move, its not a pointer or some other storage (register or memory contents).
The only way you can fast zero the stuff is if you can use MMX, and have a free MMX register going (so you aren't using FPU, or really using the MMX register space).
pxor MM0, MM0
movq myQWORD, MM0
Mirno
mov eax, 7
7 is the actual number you want to move, its not a pointer or some other storage (register or memory contents).
The only way you can fast zero the stuff is if you can use MMX, and have a free MMX register going (so you aren't using FPU, or really using the MMX register space).
pxor MM0, MM0
movq myQWORD, MM0
Mirno
immediate, is a number. like 0, 37878, 0A47Fh,01010100b those types of numbers are called immediate when using with a instruction.
I think it?s because the intel family of chips have evolved from 16 bits... so when the firsts models where designed they used mem native access was with 16-bits reg (i.e. AX), then iwith the 386 it evolved to 32 bits (EAX), but then... I think they don?t have more opcodes.
So MME which is pretty new uses QWORD, but there are no opcodes to access it like you would with words.
But one never knows, maybe they will in heptium... ;)
So MME which is pretty new uses QWORD, but there are no opcodes to access it like you would with words.
But one never knows, maybe they will in heptium... ;)
its called the 64bit microprossesor.
U mean the pentium?
no i mean 64bit cpus exist. but you wont find them in your computer for a few years. becuase 32bits isnt enuf anymore.
with the 64 you can move 64 bits from and to 64 bit regesters.
with the 64 you can move 64 bits from and to 64 bit regesters.
To me 32-bits is OK, I mean, I have just learned it... gimme a break... if i gotta go now on learnig 64bit suff... c'mon, i think it works REALLY WELL the 32 bit as its now, and AMDs have even 3DNow so... who needs 64 bits? That?s too much ;)
32 isnt enif for me, i want to do big projects that require large precition numbers.
But see my point: 32-bits is from 0 - 4 Gigas. WOW!!! That?s a lot, I meant that?s TOO MUCH. there are number there for ALL your life... thats almost infinitum, isnt it?
So don?t you have enough with that?
So don?t you have enough with that?
no man 4gb is small, SMALLLL!!!!!!! when u get to be a even better programmer youll find that 32bits just isnt enugh! 64 bits is all the numbers u need, well maby 128 bits is that, i mean if you have a 20gb drive, well u need 64 bits to hold the amount of bytes u have, see how 32 bits isnt enuf!!!
Qages, when do you think CPU having 48 Tb (tera bit) regs will be standard server CPUs? By 2175 is my guess, hope I'll live to know...
2175 lol well all be dead by then. by 2050 there will be 15 billion humanz. imagine 1 other persion standing next to every person you see.... well id say 64 bit standard in 5-10 years.