Programming an OS for z80 calculators - Revision history

Dan Englender: Undo revision 10094 by KermMartian (Talk) -- Editorial commentary not appropriate for informational article.

2013-04-25T21:11:31Z

Undo revision 10094 by KermMartian (Talk) -- Editorial commentary not appropriate for informational article.

KermMartian at 06:33, 25 April 2013

2013-04-25T06:33:49Z

Galandros: for now that's it

2010-11-15T21:42:54Z

for now that's it

Galandros: more stuff

2010-11-15T21:39:48Z

more stuff

Galandros: created and sketched...

2010-11-15T21:35:59Z

created and sketched...

New page

It is now fairly easy for an intermediate to advanced z80 assembly programmer to write its own Operating System (from now on OS) for its calculator. Mainly because there is a lot of documentation floating about z80 calculators hardware, emulator and examples of OS.

And now an OS can be very easily distributed and installed in .8xu format.

== Main concerns before starting ==
{{stub}}

== Sample basic OS functionality ==

== Hardware ==

== Tools ==
You really should get an adequate assembler. SPASM and Brass are well suited. But others may be used.
You will also need a program to take the binary to convert into a .8xu file.
http://www.ticalc.org/archives/files/fileinfo/383/38392.html

Here is a script using spasm to assemble and sign the OS.
<nowiki>
$ spasm main.asm main.bin
$
</wiki>

== See also ==
* http://www.cemetech.net/forum/viewtopic.php?t=5008
* other OSes source code
* ports
* (many more I will add)

← Older revision		Revision as of 21:11, 25 April 2013
Line 1:		Line 1:
−	It is now fairly easy for an intermediate to advanced z80 assembly programmer to write its own Operating System (from now on OS) for its calculator. Mainly because there is a lot of documentation floating about z80 calculators hardware, emulator and examples of OS~~. However, you should make sure that you [http://www.cemetech.net/forum/viewtopic.php?t=9110 are ready to write an OS]~~.	+	It is now fairly easy for an intermediate to advanced z80 assembly programmer to write its own Operating System (from now on OS) for its calculator. Mainly because there is a lot of documentation floating about z80 calculators hardware, emulator and examples of OS.

	And now an OS can be very easily distributed and installed in .8xu format.		And now an OS can be very easily distributed and installed in .8xu format.

← Older revision		Revision as of 06:33, 25 April 2013
Line 1:		Line 1:
−	It is now fairly easy for an intermediate to advanced z80 assembly programmer to write its own Operating System (from now on OS) for its calculator. Mainly because there is a lot of documentation floating about z80 calculators hardware, emulator and examples of OS.	+	It is now fairly easy for an intermediate to advanced z80 assembly programmer to write its own Operating System (from now on OS) for its calculator. Mainly because there is a lot of documentation floating about z80 calculators hardware, emulator and examples of OS. However, you should make sure that you [http://www.cemetech.net/forum/viewtopic.php?t=9110 are ready to write an OS].

	And now an OS can be very easily distributed and installed in .8xu format.		And now an OS can be very easily distributed and installed in .8xu format.

@@ Line 7: / Line 7: @@
 == Sample basic OS functionality ==
 Every OS needs these, just to boot:
@@ Line 17: / Line 16: @@
 * Set up memory
 * Initialize the stack
 == Hardware ==
-== Tools ==
+== Tools for building the OS ==
 You really should get an adequate assembler. SPASM and Brass are well suited. But others may be used.
 You will also need a program to take the binary to convert into a .8xu file.
@@ Line 30: / Line 31: @@
 $ spasm main.asm main.bin
+$
-  </wiki>
+  </nowiki>
 == See also ==