Evolution of Conditional Tests

[Sylvain Cote]

A little out of subject, but for the HP-41 the missing tests can be simulated:

Code:

X>=0?     X>=Y?       // missing test
INST.     INST.       // instruction to execute when the missing test is true
-----------------------------------------------------------------------------
X<0?      X<Y?        // reverse test
FS? 30    FS? 30      // always false (catalog in progress flag)
INST.     INST.       // instruction to execute when the missing test is true