Main ROM Management Feature - Revision history

Sadolph: /* The Primary ROM Image */

2015-11-08T00:19:14Z

The Primary ROM Image

← Older revision		Revision as of 17:19, 7 November 2015
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	For M100/T102/T200, the signature is the changing of the word "MENU" to the word "Menu" at offset 0003H in the standard binary image.		For M100/T102/T200, the signature is the changing of the word "MENU" to the word "Menu" at offset 0003H in the standard binary image.
	For PC-8201, the signature is code 052H 'R' at ~~offset0007H~~ in the standard binary image.
			For PC-8201, the signature is code 052H 'R' at offset 0007H in the standard binary image.

	When REX sees the signature, it "deduces" that the original internal ROM is no longer in use, and one of the REX based main ROM images is in use.		When REX sees the signature, it "deduces" that the original internal ROM is no longer in use, and one of the REX based main ROM images is in use.

Sadolph: /* The Primary ROM Image */

2015-11-08T00:18:52Z

The Primary ROM Image

← Older revision		Revision as of 17:18, 7 November 2015
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	~~This~~ signature is the ~~chaning~~ of the word "MENU" to the word "Menu" at offset ~~0003h~~ in the standard binary image. When REX sees ~~lower case characters~~, it "deduces" that the original internal ROM is no longer in use, and one of the REX based main ROM images is in use.		For M100/T102/T200, the signature is the changing of the word "MENU" to the word "Menu" at offset 0003H in the standard binary image.
			For PC-8201, the signature is code 052H 'R' at offset0007H in the standard binary image.
			When REX sees the signature, it "deduces" that the original internal ROM is no longer in use, and one of the REX based main ROM images is in use.


	== Loading Primary and Secondary Images ==		== Loading Primary and Secondary Images ==

Sadolph: /* Main ROM Image files */

2015-11-08T00:15:50Z

Main ROM Image files

← Older revision		Revision as of 17:15, 7 November 2015
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	<table border="1">		<table border="1">
	<tr><td>Model</td><td>Description</td><td>File</td><td>Checksum</td><td>Submitter / Date</td></tr>		<tr><td>Model</td><td>Description</td><td>File</td><td>Checksum</td><td>Submitter / Date</td></tr>
	<tr><td>M100</td><td>Default Image</td><td>[[Media:R_M100.BR\|R_M100.BR]]</td><td>A32C</td><td>[[User:Sadolph\|Sadolph]] 08:59, 18 October 2010 (PDT)</td></tr>		<tr><td>M100</td><td>Default Image for 32k Main ROM</td><td>[[Media:R_M100.BR\|R_M100.BR]]</td><td>A32C</td><td>[[User:Sadolph\|Sadolph]] 08:59, 18 October 2010 (PDT)</td></tr>
	<tr><td>T102</td><td>Default Image</td><td>[[Media:R_T102.BR\|R_T102.BR]]</td><td>A922</td><td>[[User:Sadolph\|Sadolph]] 08:59, 18 October 2010 (PDT)</td></tr>		<tr><td>T102</td><td>Default Image for 32k Main ROM</td><td>[[Media:R_T102.BR\|R_T102.BR]]</td><td>A922</td><td>[[User:Sadolph\|Sadolph]] 08:59, 18 October 2010 (PDT)</td></tr>
	<tr><td>T200</td><td>Default Image for 32k Main ROM</td><td>[[Media:RT2001.BR\|RT2001.BR]]</td><td>E168</td><td>[[User:Sadolph\|Sadolph]] 04:02, 14 February 2011 (PST)</td></tr>		<tr><td>T200</td><td>Default Image for 32k Main ROM</td><td>[[Media:RT2001.BR\|RT2001.BR]]</td><td>E168</td><td>[[User:Sadolph\|Sadolph]] 04:02, 14 February 2011 (PST)</td></tr>
	<tr><td>T200</td><td>Default Image for 8k Main ROM</td><td>[[Media:RT2002.BR\|RT2002.BR]]</td><td>AD06</td><td>[[User:Sadolph\|Sadolph]] 04:02, 14 February 2011 (PST)</td></tr>		<tr><td>T200</td><td>Default Image for 8k Main ROM</td><td>[[Media:RT2002.BR\|RT2002.BR]]</td><td>AD06</td><td>[[User:Sadolph\|Sadolph]] 04:02, 14 February 2011 (PST)</td></tr>
	<tr><td>PC-8201</td><td>Default Image for 32k Main ROM</td><td>[[Media:R_8201.BR\|R_8201.BR]]</td><td>FBD5</td><td>[[User:Sadolph\|Sadolph]] ([[User talk:Sadolph\|talk]]) 16:13, 7 November 2015 (PST)</td></tr>		<tr><td>PC-8201</td><td>Default Image for 32k Main ROM</td><td>[[Media:R_8201.BR\|R_8201.BR]]</td><td>FBD5</td><td>[[User:Sadolph\|Sadolph]] ([[User talk:Sadolph\|talk]]) 16:13, 7 November 2015 (PST)</td></tr>
	</table>		</table>

Sadolph: /* Main ROM Image files */

2015-11-08T00:13:36Z

Main ROM Image files

← Older revision		Revision as of 17:13, 7 November 2015
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	<tr><td>T200</td><td>Default Image for 32k Main ROM</td><td>[[Media:RT2001.BR\|RT2001.BR]]</td><td>E168</td><td>[[User:Sadolph\|Sadolph]] 04:02, 14 February 2011 (PST)</td></tr>		<tr><td>T200</td><td>Default Image for 32k Main ROM</td><td>[[Media:RT2001.BR\|RT2001.BR]]</td><td>E168</td><td>[[User:Sadolph\|Sadolph]] 04:02, 14 February 2011 (PST)</td></tr>
	<tr><td>T200</td><td>Default Image for 8k Main ROM</td><td>[[Media:RT2002.BR\|RT2002.BR]]</td><td>AD06</td><td>[[User:Sadolph\|Sadolph]] 04:02, 14 February 2011 (PST)</td></tr>		<tr><td>T200</td><td>Default Image for 8k Main ROM</td><td>[[Media:RT2002.BR\|RT2002.BR]]</td><td>AD06</td><td>[[User:Sadolph\|Sadolph]] 04:02, 14 February 2011 (PST)</td></tr>
			<tr><td>PC-8201</td><td>Default Image for 32k Main ROM</td><td>[[Media:R_8201.BR\|R_8201.BR]]</td><td>FBD5</td><td>[[User:Sadolph\|Sadolph]] ([[User talk:Sadolph\|talk]]) 16:13, 7 November 2015 (PST)</td></tr>
	</table>		</table>

Sadolph: /* Connection point for Main ROM Management */

2015-11-08T00:10:26Z

Connection point for Main ROM Management

← Older revision		Revision as of 17:10, 7 November 2015
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	<tr><td>T102</td><td>TP1 <--> M12 pin 20 </td><td>N/A</td><td>snip pin at ROM, tie ROM pin to +5V</td></tr>		<tr><td>T102</td><td>TP1 <--> M12 pin 20 </td><td>N/A</td><td>snip pin at ROM, tie ROM pin to +5V</td></tr>
	<tr><td>T200</td><td>TP1 <--> M15 pin 20 </td><td>TP2 <--> M13 pin 22 </td><td>pull ROMs from socket</td></tr>		<tr><td>T200</td><td>TP1 <--> M15 pin 20 </td><td>TP2 <--> M13 pin 22 </td><td>pull ROMs from socket</td></tr>
	<tr><td>PC-8201</td><td>TP2 <--> M pin20 </td><td>N/A</td><td>pull ROM from socket</td></tr>		<tr><td>PC-8201</td><td>TP2 <--> ROM0 pin20 </td><td>N/A</td><td>pull ROM from socket</td></tr>
	</table>		</table>

Sadolph: /* Connection point for Main ROM Management */

2015-11-07T23:50:35Z

Connection point for Main ROM Management

← Older revision		Revision as of 16:50, 7 November 2015
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	<table border="1">		<table border="1">
	<tr><td>Model</td><td>/CS 0x0000 to 0x7FFF</td><td>/CS 0x8000 to 0x9FFF</td></tr>		<tr><td>Model</td><td>/CS 0x0000 to 0x7FFF</td><td>/CS 0x8000 to 0x9FFF</td><td>note</td></tr>
	<tr><td>M100</td><td>TP1 <--> M pin </td><td>N/A</td></tr>		<tr><td>M100</td><td>TP1 <--> M12 pin 27 </td><td>N/A</td><td>pull ROM from socket</td></tr>
	<tr><td>T102</td><td>TP1 <--> M pin </td><td>N/A</td></tr>		<tr><td>T102</td><td>TP1 <--> M12 pin 20 </td><td>N/A</td><td>snip pin at ROM, tie ROM pin to +5V</td></tr>
	<tr><td>T200</td><td>TP1 <--> M pin </td><td>TP2 <--> M pin </td></tr>		<tr><td>T200</td><td>TP1 <--> M15 pin 20 </td><td>TP2 <--> M13 pin 22 </td><td>pull ROMs from socket</td></tr>
	<tr><td>PC-8201</td><td>~~TP1~~ <--> M ~~pin~~ </td><td>N/A</td></tr>		<tr><td>PC-8201</td><td>TP2 <--> M pin20 </td><td>N/A</td><td>pull ROM from socket</td></tr>
	</table>		</table>

Sadolph: /* Connection point for Main ROM Management */

2015-11-07T23:44:27Z

Connection point for Main ROM Management

← Older revision		Revision as of 16:44, 7 November 2015
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	<table border="1">		<table border="1">
	<tr><td>Model</td><td>/CS 0x0000 to 0x7FFF~~: socket location </td><td>/CS 0x0000 to 0x7FFF: REX location </td><td>/CS 0x8000 to 0x9FFF: socket location~~ </td><td>/CS 0x8000 to 0x9FFF~~: REX location~~</td></tr>		<tr><td>Model</td><td>/CS 0x0000 to 0x7FFF</td><td>/CS 0x8000 to 0x9FFF</td></tr>
	<tr><td>M100~~</td><td>M pin~~ </td><td>TP1<~~/td~~>~~<td>N/A~~</td><td>N/A</td></tr>		<tr><td>M100</td><td>TP1 <--> M pin </td><td>N/A</td></tr>
	<tr><td>T102~~</td><td>M pin~~ </td><td>TP1<~~/td~~>~~<td>N/A~~</td><td>N/A</td></tr>		<tr><td>T102</td><td>TP1 <--> M pin </td><td>N/A</td></tr>
	<tr><td>T200</td><td>M pin </td><td>~~TP1~~<~~/td><td~~>M ~~Pin </td><td>TP2~~</td></tr>		<tr><td>T200</td><td>TP1 <--> M pin </td><td>TP2 <--> M pin </td></tr>
	<tr><td>PC-8201</td><td>M pin ~~</td><td>TP2</td><td>N/A~~</td><td>N/A</td></tr>		<tr><td>PC-8201</td><td>TP1 <--> M pin </td><td>N/A</td></tr>
	</table>		</table>

Sadolph: /* Connection point for Main ROM Management */

2015-11-07T23:42:02Z

Connection point for Main ROM Management

← Older revision		Revision as of 16:42, 7 November 2015
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	The chip select line(s) have to be connected to REX. The following table identifies where to connect the chip select lines.		The chip select line(s) have to be connected to REX. The following table identifies where to connect the chip select lines.

			<table border="1">
			<tr><td>Model</td><td>/CS 0x0000 to 0x7FFF: socket location </td><td>/CS 0x0000 to 0x7FFF: REX location </td><td>/CS 0x8000 to 0x9FFF: socket location </td><td>/CS 0x8000 to 0x9FFF: REX location</td></tr>
			<tr><td>M100</td><td>M pin </td><td>TP1</td><td>N/A</td><td>N/A</td></tr>
			<tr><td>T102</td><td>M pin </td><td>TP1</td><td>N/A</td><td>N/A</td></tr>
			<tr><td>T200</td><td>M pin </td><td>TP1</td><td>M Pin </td><td>TP2</td></tr>
			<tr><td>PC-8201</td><td>M pin </td><td>TP2</td><td>N/A</td><td>N/A</td></tr>
			</table>

	== The Primary ROM Image ==		== The Primary ROM Image ==

Sadolph: /* How it works */

2015-11-07T23:36:34Z

How it works

← Older revision		Revision as of 16:36, 7 November 2015
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	* Connect the chip select line for the main ROM to TP1 on REX. This involves soldering.		* Connect the chip select line for the main ROM to TP1 on REX. This involves soldering.

			== Connection point for Main ROM Management ==

			The chip select line(s) have to be connected to REX. The following table identifies where to connect the chip select lines.

	== The Primary ROM Image ==		== The Primary ROM Image ==

Sadolph: /* Overview */

2015-11-07T23:34:34Z

Overview

← Older revision		Revision as of 16:34, 7 November 2015
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	Main ROM Management, supported in release 4.6, is feature in REX whereby the internal system ROM(s) may be replaced by specific blocks in REX. There are 4 blocks reserved for this - block 2 (2 and 3 for T200) for the "Primary" Main ROM, and block 4 (4 and 5 for T200) for the "Secondary". In the M100/T102, only 32k is required for the Main ROM, but in the T200, 64k is needed (occupying block 3 and 5 also).		Main ROM Management, supported in release 4.6, is feature in REX whereby the internal system ROM(s) may be replaced by specific blocks in REX. There are 4 blocks reserved for this - block 2 (2 and 3 for T200) for the "Primary" Main ROM, and block 4 (4 and 5 for T200) for the "Secondary". In the M100/T102, only 32k is required for the Main ROM, but in the T200, 64k is needed (occupying block 3 and 5 also).


			== Supported Models ==

			The following models can use Main ROM Management:
			Model 100
			Tandy 102
			Tandy 200
			NEC PC-8201


			Note: PC-8300 cannot use Main ROM Management.

	== Why would you want this?? ==		== Why would you want this?? ==