hopcode223's articles:

Items(3) /1

x64lab first release 7 69 (6/22/2012 1:52:31 PM) comp.lang.asm.x86 I am proud to announce you the first working release of x64lab assembly IDE under the MPL 2.0 License It is a bit more than an alpha version and consequently lot of features are deactivated at the moment, ... hopcode

SSE logical stream conversion form hexstring to value 3 27 (3/28/2012 8:39:49 AM) comp.lang.asm.x86 Hi all, used for streams. it is "logical" because doesnt take advantage of the PCMPEQB instruction. what do you think ? i dont like the fact it uses 5 masks. how can i improve it ? here: align 16 mask_40 ... hopcode

Branchless maximum unsigned between two values 4 52 (3/22/2012 7:30:16 AM) comp.lang.asm.x86 Hi all, still sleepen there ? ;-) ..umax: mov eax,val1 sub eax,val2 sbb ecx,ecx and ecx,eax xor eax,ecx add eax,val2 nop ret 0 ideas ? Cheers, -- ..:mrk[hopcode] .:x64lab:. group http:... hopcode

hopcode223's replies:

Items(11) /2 Next >> Last >|

Fast and small Multiplicative Random number generator 81 76 (12/19/2011 1:08:24 PM) comp.lang.asm.x86 Hi everybody, some days ago i started thinking upon a fast and simple random number generator of few lines of codes, wondering about the use of MUL and RDTSC. after some "deviations" from the theory :-) i stum... hopcode5394 (42)

Branchless maximum unsigned between two values 4 52 (3/22/2012 7:30:16 AM) comp.lang.asm.x86 Hi all, still sleepen there ? ;-) ..umax: mov eax,val1 sub eax,val2 sbb ecx,ecx and ecx,eax xor eax,ecx add eax,val2 nop ret 0 ideas ? Cheers, -- ..:mrk[hopcode] .:x64lab:. group http:... hopcode223 (37)

SSE logical stream conversion form hexstring to value 3 27 (3/28/2012 8:39:49 AM) comp.lang.asm.x86 Hi all, used for streams. it is "logical" because doesnt take advantage of the PCMPEQB instruction. what do you think ? i dont like the fact it uses 5 masks. how can i improve it ? here: align 16 mask_40 ... hopcode223 (37)

About divisions on the Taylor series in the error function 8 26 (4/9/2012 2:20:34 PM) comp.programming Hi, i am actually using the Marsaglia's method to calculate the error function from (snipped) this series x + x3/3 + x5/(3 � 5) + x7/(3 � 5 � 7) is there a way to avoid divisions in there? what about a method ... hopcode8998 (11)

Replacing single byte in doubleword 13 44 (4/18/2012 3:29:19 PM) comp.lang.asm.x86 Is there a smart non-SIMD way of replacing a single byte in a doubleword, let's say a comma by a space or an asterisk by a zero, other than a loop, like mov ecx, 4 @1: cmp al, "," ; or whatever ... spamtrap14 (66)

telling data from code when disassembling 10 35 (5/2/2012 8:29:47 PM) comp.lang.asm.x86 I am writing a disassembler and am considering what ways there might be to identify data bytes and data segments. For example, consider this basic program: ...MODEL small .STACK 100h .DATA HelloMessage ... cg_chas1 (3)

How compilers implement objects in x86 assembly 10 35 (5/30/2012 11:45:31 PM) comp.lang.asm.x86 Hi, I'm learning x86 assembly on my free time and I'm trying to find how do= es high level compilers implement classes and objects in x86 asm. So far I = saw some toy compilers that use structs, but the way I... danielzazula1 (2)

Starting Assembly 10 80 (6/20/2012 4:35:25 AM) comp.lang.asm.x86 I am trying to start learning assembly on windows, but just the basics for = now. I have a fair amount of C++, but no GUI down. I have java fully down a= nd can do anything with that language and PHP down ver... gemurdock (1)

x64lab first release 7 69 (6/22/2012 1:52:31 PM) comp.lang.asm.x86 I am proud to announce you the first working release of x64lab assembly IDE under the MPL 2.0 License It is a bit more than an alpha version and consequently lot of features are deactivated at the moment, ... hopcode223 (37)

Controlling a Multi-Core 64 bit AMD Processor 48 71 (8/17/2012 2:37:05 AM) comp.lang.asm.x86 Hi, I want to be able to use more than one core CPU. How does one control this hardware, using Assembly (opcode). In other words, how do you manipulate a multi-core processor. Thanks. Dan x86(at)igin... google5187 (4)