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RODOS was a high-capacity disc operating system released by [[Romantic Robot|Romantic Robot]], whose main aim was to allow you to make use of the extra capacity on 3.5in discs. It shipped on a single 16k sideways ROM. It was written by [https://www.linkedin.com/in/matthewkle/?originalSubdomain=uk Matthew Edwards] between 1985 and 1989.
Unlike other similar DOSses ([[ParaDOS|ParaDOS]], [[MS800|MS800]], [[S-DOS|S-DOS]], [[ROMDOS|ROMDOS]]), RODOS aimed to do significantly more than provide new, high-capacity formats. Among its features were:
|4||1||Current drive number, See appendix A
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|8||1||Loading messages (<nowiki>|</nowiki>opt,1,x)
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|9||1||Disk read error retry count (<nowiki>|</nowiki>opt,5,x)
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|11||1||Expansion Ram count (in 16k blocks)
|12||1||Start prbuff bank
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|17||1||Screen output redirection value (from <nowiki>|</nowiki>PRINT,n)
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|18||1||Current side of disc (0 or 1)
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|19||1||Previous Drive, eg <nowiki>|</nowiki>C:<nowiki>|</nowiki>dir,"A:" will make location 3 0 (for drive A), and location 19 will be 2 (for drive C)
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|22||1||Overwrite file: 0=ask 1=overwrite 2=create backup
|65||1||Case sensitivity on file names (0=On, Case sensitive. 1=Off, Case insensitive)
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|66||1||Home drive number for <nowiki>|</nowiki>CD
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|67||1||Home drive letter for <nowiki>|</nowiki>CD
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|68||1||Home track for <nowiki>|</nowiki>CD
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|69||1||Home sector for <nowiki>|</nowiki>CD
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|70||2||HL Value from KM_TEST_KEY on boot
[[Media:RODOS211.zip|RODOS211.zip]] (Version 2.11 EPROM Image)
[[Media:RODOS212.zip|RODOS212.zip]] (Version 2.12 EPROM Image)
[[Media:RODOS213.ZIP|RODOS213.zip]] (Version 2.13 EPROM Image)
[[Media:RODOS219.zip|RODOS219.zip]] (Version 2.19 EPROM Image)
== Recent ROM Updates ==
The following releases are not official, written by [[User:Cormacj|Cormacj]]. The work is tracked here [https://github.com/cormacj/rodos-disassembly on GitHub] and bug reports and feature requests can be made there.
They do include bugfixes, and for V2.22, an improvement that makes it easier to temporarily disable the ROM if needed.
[[Media:Rodos220.zip|Rodos220.zip]] (Version 2.20 EPROM Image - not official - see README)
[[Media:Rodos221.zip|Rodos221.zip]] (Version 2.21 EPROM Image - not official - see README)
[[Media:Rodos-222.zip|Rodos222.zip]] (Version 2.22 EPROM Image - not official - see README)
== Disc ==
[[Media:RODOS_Manual.pdf|RODOS Manual]] (pdf)
[[Media:RODOS_Manual_v2.22.pdf|RODOS Manual OCR'd and updated]] (pdf by [[User:Cormacj|Cormacj]] )
[[Category:Disc Operating_System]] [[Category:Expansion_ROM]] [[Category:Manual]]
