Simple Conversion Routines (EAX to ASCII, Win32)

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AsmGuru62

Joined: 28 Jan 2004
Posts: 1561
Location: Toronto, Canada

AsmGuru62 08 Jun 2013, 13:20

Wow!
FASM can interpret [REG*5] as [reg + reg*4]??!!
Very cool! Can MASM do that?

08 Jun 2013, 13:20

revolution
When all else fails, read the source

Joined: 24 Aug 2004
Posts: 19871
Location: In your JS exploiting you and your system

revolution 08 Jun 2013, 15:06

AsmGuru62 wrote:

Can MASM do that?

Who cares?

08 Jun 2013, 15:06

baldr

Joined: 19 Mar 2008
Posts: 1651

baldr 09 Jun 2013, 16:55

revolution wrote:

Who cares?

Anyone could kick dead lion. Wink

09 Jun 2013, 16:55

AsmGuru62

Joined: 28 Jan 2004
Posts: 1561
Location: Toronto, Canada

AsmGuru62 09 Jun 2013, 18:52

It is OK -- I was just asking to get some knowledge on it.
I like information!

09 Jun 2013, 18:52

uart777

Joined: 17 Jan 2012
Posts: 369

uart777 09 Jun 2013, 18:56

revolution: You're right. We should concentrate on what needs to be optimized, consider how often it occurs and use a profiler (or cpuid+rdtsc) to determine critical sections of code. All too often, programmers try to optimize everything equally and they end up wasting time with initiation code that only occurs once or calling and general program flow. Example:

Code:

; It would be foolish to optimize this division because the
; call following it takes 100,000s of times longer

idiv ecx
call draw.complex.imagery ; < 5 million CPU cycles

Guru: Information is like spiritual enlightenment to a programmer Smile

09 Jun 2013, 18:56

edfed

Joined: 20 Feb 2006
Posts: 4324
Location: Now

edfed 10 Jun 2013, 09:44

just another way.

Code:

lea r32_dest,[r32_src*5]
lea r32_dest,[r32_dest*2]

or if only on 1 byte

Code:

aad

10 Jun 2013, 09:44

tatatat0

Joined: 04 Aug 2016
Posts: 1

tatatat0 04 Aug 2016, 23:34

I all I want is just to be able to see my registers. Is that too much to ask? Like the level of trash talk on this forum is just toxic, its not even funny. I've read 3 threads and every single one of them had trash talk in it. Why are you attacking people over programming?Why is this even allowed on the site? Seriously, swallow your pride and just help people. ._.

04 Aug 2016, 23:34

Trinitek

Joined: 06 Nov 2011
Posts: 257

Trinitek 04 Aug 2016, 23:56

tatatat0 wrote:

I all I want is just to be able to see my registers. Is that too much to ask? Like the level of trash talk on this forum is just toxic, its not even funny. I've read 3 threads and every single one of them had trash talk in it. Why are you attacking people over programming?Why is this even allowed on the site? Seriously, swallow your pride and just help people. ._.

Don't let some bad apples spoil the whole bunch. Wink

04 Aug 2016, 23:56

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