02-27-2023, 08:53 AM
The USR function is built-in (like RND, SIN, COS, etc).
Some functions are still built-in for performance or compatibility reasons.
For example, USR allows both numbers and strings.
USR "a" (returns the mem address of the 1st byte of UDG "a").
USR 32424 (executes machine code at 32424 and returns value stored in BC register).
Some functions are still built-in for performance or compatibility reasons.
For example, USR allows both numbers and strings.
USR "a" (returns the mem address of the 1st byte of UDG "a").
USR 32424 (executes machine code at 32424 and returns value stored in BC register).