2010-02-27, 05:47 AM
I was thinking that it might be incredibly useful, for inline assembly to be able to set what's on the registers as you hit z80 asm.
And a command to do that, that works in a similar way to a function call, might be a good way to do it and avoid a lot of the overhead of a function call for very small jobs.
How about a register and an unregister command?
Register - takes a variable and puts it in the current registers
unregister - takes registers and puts them into a variable.
So you could do something like:
DIM a as long
register a
asm
LD D,0
end asm
unregister a
To kill off the top byte of a long, if that was your whimsy.
Not sure if other people would find this useful, but I could imagine ways it could be useful.
How about:
dim a as fixed
dim b as uinteger
(do things)
register a
unregister b
to put the decimal part of a into b if you wanted to deal with the integer part and the decimal part separately. You could even shunt it back later...
Anyway, just a crazy thought from me, as per usual :-)
And a command to do that, that works in a similar way to a function call, might be a good way to do it and avoid a lot of the overhead of a function call for very small jobs.
How about a register and an unregister command?
Register - takes a variable and puts it in the current registers
unregister - takes registers and puts them into a variable.
So you could do something like:
DIM a as long
register a
asm
LD D,0
end asm
unregister a
To kill off the top byte of a long, if that was your whimsy.
Not sure if other people would find this useful, but I could imagine ways it could be useful.
How about:
dim a as fixed
dim b as uinteger
(do things)
register a
unregister b
to put the decimal part of a into b if you wanted to deal with the integer part and the decimal part separately. You could even shunt it back later...
Anyway, just a crazy thought from me, as per usual :-)