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(MESS) victor9k: Added notes. (nw)

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This commit is contained in:
Curt Coder 2013-06-06 14:01:22 +00:00
parent d8571d9f57
commit f9456962e5
2 changed files with 43 additions and 6 deletions
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40
src/mess/drivers/victor9k.c
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@ -1,13 +1,41 @@
/***************************************************************************
/**********************************************************************
Victor 9000
Victor 9000 / ACT Sirius 1 emulation
- very exciting hardware, disk controller is a direct descendant
of the Commodore drives (designed by Chuck Peddle)
Copyright MESS Team.
Visit http://mamedev.org for licensing and usage restrictions.
Skeleton driver
**********************************************************************/
***************************************************************************/
/*
Sector format
-------------
Header sync
Sector header (header ID, track ID, sector ID, and checksum)
Gap 1
Data Sync
Data field (data sync, data ID, data bytes, and checksum)
Gap 2
Track format
------------
ZONE LOWER HEAD UPPER HEAD SECTORS ROTATIONAL
NUMBER TRACKS TRACKS PER TRACK PERIOD (MS)
0 0-3 unused 19 237.9
1 4-15 0-7 18 224.5
2 16-26 8-18 17 212.2
3 27-37 19-29 16 199.9
4 38-48 30-40 15 187.6
5 49-59 41-51 14 175.3
6 60-70 52-62 13 163.0
7 71-79 63-74 12 149.6
8 unused 75-79 11 144.0
*/
/*

9
src/mess/includes/victor9k.h
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@ -1,3 +1,12 @@
/**********************************************************************
Victor 9000 / ACT Sirius 1 emulation
Copyright MESS Team.
Visit http://mamedev.org for licensing and usage restrictions.
**********************************************************************/
#pragma once
#ifndef __VICTOR9K__