assembly - SHR and SAR Commands -


i make sure understanding concept 100% , if not clarification.

in asm program, if perform shr 00110000b end 00011000b. however, if perform shr on 11111111b end incorrect answer , should use sar instead? because number signed?

if perform shr 00110000b end 00011000b

if shifted 1 bit right, yes. can specify shift amount, it's not fixed @ 1.

however, if perform shr on 11111111b end incorrect answer

if did logical shift of 11111111b 1 bit right you'd 01111111b. whether consider incorrect or not depends entirely on you're trying achieve. if wanted preserve sign should've used sar.


Comments

Post a Comment

Popular posts from this blog

Magento/PHP - Get phones on all members in a customer group -

i working on custom magento extension. working around adminhtml part , i've created custom form there. here form code: <?php class vivasindustries_smsnotification_block_adminhtml_sms_sendmass_edit_form extends mage_adminhtml_block_widget_form { public function _preparelayout() { $extensionpath = mage::getmoduledir('js', 'vivasindustries_smsnotification'); $head = $this->getlayout()->getblock('head'); $head->addjs('jquery.js'); $head->addjs('vivas.js'); return parent::_preparelayout(); } protected function _prepareform() { $form = new varien_data_form(array( 'id' => 'edit_form', 'action' => $this->geturl('*/*/save', array('id' => $this->getrequest()->get
Read more

php - .htaccess mod_rewrite for dynamic url which has domain names -

i want convert url ex:( example.com/link.php?url=facebook.com ) ( example.com/facebook.com.php ) how can using .htaccess. or there other process make job easier ? i tried adding script .htaccess file options +followsymlinks rewriteengine on rewriterule url-(.*)\.htm$ link.php?url=$1 but converting url adding "url-" ( example.com/url-facebook.com.php ) i want remove "url-" , want make ( example.com/facebook.com.php ) rewriteengine on rewritecond %{the_request} ^get.*link\.php\?url\= [nc] rewritecond %{request_uri} !/system/.* [nc] rewriterule (.*?)link\.php\?url\=/*(.*) /$1$2 [r=301,ne,l] not sure how above work edit of used use remove index.php url
Read more

Website Login Issue developed in magento -

i have website developed using magento . able login. right now, login failed. infact operations interacts user table failing. need know issue. how figure out? first clear try clear log file second make sure have not upgraded magento and 3rd make sure db accessible in magento -harry p
Read more