Oxygen Basic

Information => Open Forum => Topic started by: Peter on May 18, 2014, 06:34:34 AM

Title: Bstring & Pointer
Post by: Peter on May 18, 2014, 06:34:34 AM

Deleted

Title: Re: Bstring & Pointer
Post by: Charles Pegge on May 18, 2014, 07:05:48 AM

use string if you prefer, Peter.

Strings are garbage collected and have one more level of indirection than bstrings.

addr myreg, mystring should resolve the character pointer to myreg in both cases.

addr eax,table

Title: Re: Bstring & Pointer
Post by: Charles Pegge on May 18, 2014, 10:49:07 PM

addr is  a pseudo-instruction for resolving variable / string / label addresses. Essential for accessing strings of different types and params passed by reference.

Incidently, you can place a string literal anywhere in your code, and its address will be loaded into the eax register:

"abcd"
print hex [eax]

(The linker usually shunts all string literals into the initialised data section)

Title: Re: Bstring & Pointer
Post by: Mike Lobanovsky on May 18, 2014, 11:27:13 PM

What does the linker do with stray string literals not referenced anywhere in the code? ;)