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Updated DOSGEN

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Updated DOSGEN to create FAT images in memory instead of copying everything to the system area.
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Broken Pipe
2024-03-27 13:54:35 +00:00
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commit 1c9241610a
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CPM Tools/README.md
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## DOSGEN
This is a tool I wrote to copy 86-DOS system files to the system area of IBM 8" SSSD floppies. It works in a similar way to CP/M's <code>SYSGEN</code> utility.
DOSGEN takes the following parameters: <code>[x:]DOSGEN y: [T]</code>
DOSGEN takes the following parameters: <code>[x:]DOSGEN y: [N]</code>
where
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<td>is a disk drive specifier indicating the disk upon which the 86-DOS system is to be written.</td>
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<td><code>T</code></td>
<td>is an optional switch indicating that a temporary copy of the system is to be used. A temporary system includes a temporary BIOS and a temporary command interpreter. Normally, the BIOS uses DOS to load the command interpreter, <code>COMMAND.COM</code>, from the file area. The temporary BIOS loads the command interpreter directly from the system area. This is useful when 86-DOS is being built and deployed for the first time, as the command interpreter cannot be put into the file area without a working copy of DOS, and a working copy of DOS needs the command interpreter. The temporary command interpreter differs from the normal command interpreter in that it includes <code>RDCPM</code> as an internal command. This is needed for copying the actual command interpreter from CP/M disks to DOS disks once the temporary system is booted.</td>
<td><code>N</code></td>
<td>is an optional switch indicating that a new file system is to be put on the destination disk. If this switch is specified, a file system with the files <code>COMMAND.COM</code> and <code>RDCPM.COM</code> will be written alongside the system.</td>
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To copy 86-DOS to a new floppy disk, you must have the files <code>BOOT.COM</code>, <code>DOSIO.COM</code> and <code>86DOS.COM</code> on the current drive. If a temporary system is to be copied, <code>TMPBIO.COM</code> and <code>TMPCMD.COM</code> must also exist.
To copy 86-DOS to a new floppy disk, you must have the files <code>BOOT.COM</code>, <code>DOSIO.COM</code> and <code>86DOS.COM</code> on the current drive. If a new file system is to be created, <code>COMMAND.COM</code> and <code>RDCPM.COM</code> must also exist.