4 ms·
> There is no definition of AH anywhere, Meanwhile: var regs: Registers; begin with regs do AH came from Registers. Overall, I'd say the
by yencabulator 2y ago
> There is no definition of AH anywhere,
Meanwhile:
var
regs: Registers;
begin
with regs do
AH came from Registers.
Overall, I'd say the author fell in between the computer generations. After things started to look high-level, but where a lot of the interesting stuff was still very low-level.
One of the first things I learned to do in Commodore-64 basic was poke53280,0 to change screen background color. It was low level for everything, and there was no expectation of the address or the value "making sense" as such; it was just hardware control.