Code! ..of what?

Van mth

Champion (507)

09-10-2007, 01:39

I was told it's a comparison of the idle loop used by msd (top) and Prodatron (bottom).

Van ro

Scribe (4963)

17-10-2007, 08:57

here's an optimalisation of the lower loop:

loop: LD HL,CNT
INC (HL)
JR LOOP

Van ro

Scribe (4963)

17-10-2007, 17:18

eh, stupid. THIS will realy speed your program up
(before anybody wanna correct me, I'll do it meself)

LD HL,CNT
LOOP: INC(HL)
JR LOOP

whateffah!

Van Edwin

Paragon (1182)

17-10-2007, 22:45

/me notes in the important to remember list: don't take code advice from ro

Van Prodatron

Paragon (1843)

18-10-2007, 00:26

Hey, for the full pleasure a 16bit counter is needed, an 8bit one wouldn't be enough Inside the idle task the CPU usage doesn't matter at all, it's only important, that the task manager can show the correct load.

Van Prodatron

Paragon (1843)

18-10-2007, 00:34

Btw, if a "HALT" would switch the Z80 into energy saving mode, MSDs methode saves a lot of electricity, and we can switch off even more nuclear power plants. But as my methode measures the CPU usage more detailed, who cares