Re: Floppy reading at flux level, WAS: Re: Tips for making Twiggy images

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From: Shirl Casner <shirlgato_at_email.domain.hidden>
Date: Tue, 17 Feb 2015 10:08:47 -0700

Hello,

Concerning the Apple IWM (Integrated Woz Machine) chip comment ...

>> Much of the GCR details are shown in the Lisa Hardware Guide 1981
>> and 1983, plus disassemblies of the I/O ROM are available as well.

>> I'm not 100% sure but I believe the original Inside Mac manuals did
>> provide some details as to the workings of the IWM.

Here are some internal Apple documents about this chip.

Also, the I/O ROM listing which is on BitSavers.org is not a disassembly, this is the original listing of this 6504 program from Apple.

Regards,
David Craig

application/pdf attachment: APPLE_2_IWM_INFO_19840510.pdf

application/pdf attachment: APPLE_2_IWM_INFO_19840524.pdf

application/pdf attachment: APPLE_2_IWM_PARKER_1994-02.pdf

application/pdf attachment: Apple_2_IWM_Spec_1982.pdf

application/pdf attachment: APPLE_2_SWIM_SPEC_19870929.pdf

application/pdf attachment: APPLE_PATENT_4_742_448_IWM.pdf

Received on 2015-02-17 17:18:08

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