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ROMLDR Improvements

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.com files can now be started from CP/M and size of .com files has been reduced so they always fit.
This commit is contained in:
Wayne Warthen
2020-04-11 13:32:55 -07:00
parent f4daaa91a4
commit e84a1bc3ea
14 changed files with 81 additions and 69 deletions
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8
Source/Doc/GettingStarted.md
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@@ -1058,14 +1058,6 @@ through the normal startup process just like it was started from ROM.
However, your ROM has not been updated and the next time you boot your
system, it will revert to the system image contained in ROM.
There are two restrictions to be aware of related to loading a system
image as a .com application. First, this is only supported under
Z-System and CP/M 2.2. You must boot into one of these OSes before
attempting to launch the .com file. Second, you may find that you
are unable to load the .com file because it is too large to fit in
available application RAM (TPA). Your only recourse in this
situation is to build a custom ROM with fewer features.
If you do not have easy access to a ROM programmer, it is usually
possible to reprogram your system ROM using the FLASH utility from
Will Sowerbutts. This application, called FLASH.COM, can be found on the