New answers tagged applesoft-basic
0
Long story short: some BASICs have "two-byte signed integers" all around, so they can work only with numbers between -32768 and +32767. Other BASICs have their own format of numbers (e.g. Sinclair's ZX Spectrum BASIC - it uses 5 bytes to store a simple integer, so it can be -65535..65535).
In the second case, it is up to the BASIC interpreter developer, ...
6
The difference between Applesoft BASIC and the other Microsoft 6502 BASIC derivatives can be explained by the fact that Applesoft BASIC was not the first BASIC for the Apple II; the first was Apple II Integer BASIC, in turn derived from Apple I BASIC, which had been independently created by The Woz. Integer BASIC supported only 16-Bit signed integers as a ...
5
In some BASICs integers were signed 16-bit values, so there was no integer higher than 32767. Thus, if you wanted a 16-bit value of $FFFF in an integer variable,you'd have to specify it as -1. You can see this in Commodore 64 BASIC V2:
X%=32767
READY
X%=32768
?ILLEGAL QUANTITY ERROR
That said, the C64 SYS didn't actually take an integer parameter; it ...
Top 50 recent answers are included
