Re: Sidam Asterock wont coin up

From: Andrew Welburn <andy_at_andysarcade.net>
Date: Thu Nov 01 2012 - 18:36:00 EDT

I'm sorry if I've forgotten the details, do you need a whole suite if disks to do a complete build?

Do you know if your floppy drive is ok with HD disks? (They are formatted to 720k, but some drive types just won't read them)

Andrew Welburn (mobile)
www.andys-arcade.com

On 1 Nov 2012, at 22:03, vectorlist-steve <vectorlist@arcadehacking.com> wrote:

> Any change of getting a copy of the those pesky Fluke 9100 floppies? I still need a working set to reinstall the software mine after the scsi drive falied. :-(
>
>
> On 11/1/2012 2:16 PM, Andrew Welburn wrote:
>> That's fantastic :)
>>
>> I will send the owner a new rom and see what happens, it will be a week at least as he's on holiday right now :)
>>
>> Thanks for the hack, it would have taken me quite a while longer to look at it myself, with no guarantee of success :)
>>
>> Andrew Welburn (mobile)
>> www.andys-arcade.com
>>
>> On 1 Nov 2012, at 20:22, vectorlist-steve <vectorlist@arcadehacking.com> wrote:
>>
>>> Below is the Asterock free play patch which required only the sidamas.2 rom be modified for the hack to work. The code has been successfully tested in mame with a handful of plays and it is functional. YMMV on actual hardware so let me know if you encounter an issue and I will take a second look.
>>>
>>> The sidamas.2 rom is the only rom which requires modification and is mapped between 0x6800 and 0x6BFF on the Asterock hardware.
>>>
>>> Old Code:
>>> 0x68ED LDY $6F ;// credit count is stored at 0x006F
>>>
>>> New Code:
>>> 0x68ED LDY #$02 ;// load y register with value of 2 credits
>>>
>>>
>>> Using your favorite hex editor, modify the sidamas.2 file beginning at offset 0x00ED and replace the following two bytes:
>>>
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Received on Thu Nov 1 18:35:30 2012

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