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2014-06-05 08:41

Bitbreaker

Registered: Oct 2002
Posts: 508

Loadertest

Hi Folx,

as i never tried out to do a loader, i now started on doing one with the aim of being fast and small. The loader is in a state where it works on all the 1541 and 1541U that i had at hand, but it has not been tested in the wild and i am sure there's a lot of worn out sloppy hardware out there that might make it choke (like the 1570 of groepaz). So i'd be pleased if all kind of people would try out that images, and let me know some results:
Will it load until there's a Q on the second line of the screen? ($0428)
Will it stop loading then with LED off and disk still spinning? You can turn the disc then and let the second side load, again, and again, and again, ... (it should detect the disc change and increment the border color)
However, i'd be interested in the values @ $0472/3 after the first run :-)

The images:
Side 1
Side 2

If things hang, will you please let me know where the c64 hangs by freezing and telling me the content of the registers and the program counter? That'd be ossom!

Peace!

2014-06-07 12:01

6R6

Registered: Feb 2002
Posts: 245

It didn't work with two drives on the bus. Only one drive allowed ?

First loader test:
C64-II with jiffydos 6.01, RetroReplay & 1570

Side 1:
Loads for some time then halts when 0428=L, led is on, and then after 30 seconds it continues loading. Led turns off, drive motor spinning. 0428 = Q.

0472: FF 13

Side 2:
$d020 changes color.
Led is on, motor is running, nothing happens.
I swap back to side 1 and it does the same thing as mentioned above for side 1.
(Sometimes it waits a very long time on "L".)

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