We already know that ARM is a 32-bit architecture: general purpose registers are 32-bit wide and addresses in memory are 32-bit numbers. The natural integer size for an architecture is usually called a word and in ARM is obviously 32-bit integers. Sometimes, though, we need to deal with subword data: integers of size smaller than 32 bits.
Today we will see how to make indirect calls.
It’s really easy to use. You just need to create a checkbox element with the class tiny_mce_toggler and a data attribute with the key editor and the text area id used as a TinyMCE editor as a value. The snippet can be easily extracted if you want to use it differently.
And here you can see how to integrate it on a page with a TinyMCE editor:
You can run the example on this fiddle: http://fiddle.tinymce.com/7jeaab
So far our small assembler programs have output messages using
printfand some of them have read input using
scanf. These two functions are implemented in the C library, so they are more or less supported in any environment supporting the C language. But how does a program actually communicate with the world?
In this chapter we will delve a bit more into the stack.