The HP-65 calculator has two flags and you can set, clear or test these in your programs. They allow you to remember choices or situations for later. Something happens. You use f SF 1 (or f SF 2) to remember it, and later you use f TF 1 (or f TF 2) to choose between two different courses of action.<\/p>\n
Where are the flags stored? How does it do all that? <\/p>\n
The flags are stored in bits of the FS register.
\nFlag 1 is FS[4].
\nFlag 2 is FS[6].<\/p>\n
You can see this by checking (menu), Advanced, View State. If you use “f SF 1” FS=….4… appears. If you use “f-1 SF 1” (i.e. clear flag 1) the “.4.” bit disappears.<\/p>\n
The same occurs for Flag 2 and FS=……6.<\/p>\n","protected":false},"excerpt":{"rendered":"
The HP-65 calculator has two flags and you can set, clear or test these in your programs. They allow you to remember choices or situations for later. Something happens. You use f SF 1 (or f SF 2) to remember it, and later you use f TF 1 (or f TF 2) to choose between … Continue reading HP65 Flags<\/span>