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Loading BASIC via Vector Graphic Monitor

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  by Bill Degnan - 08/06/2015 10:49
You can also run BASIC from the Vector Graphics monitor for MITS Turnkey, an alternative monitor program I found. No documentation on this version exists on the web, but you can search Google for "Vector Graphic Extended Monitor" to locate newer versions of the docs.

Here is the procedure -

Download Turnkey ROMS

Unike the MITS TURNMON, The Vector Graphics (1.0?) monitor prompt is the asterisk character (*). Interestingly the prompt changes to the dot (.) prompt when using the Vector Graphics ROM in Program (P) mode.

Directions to load BASIC using the Vector Graphics monitor

* P
. D 4000 (this is not a typo)

In response to each memory location, enter the following values:

21
00
00
DB
10
0F
D2
03
40
DB
11
77
23
C3
03
40

After you enter the last value, hit enter, and then hit Esc to return to the asterisk prompt.

Enter command to run bootstrap loader

* G 4000 (do not hit enter)

Using your terminal program 9600/8/n/1 Download EXBAS.BIN as a binary file.

When the file finishes press down on the START switch on the front panel to return to the asterisk prompt (*).

Change the communications software to 9600/N/7/1

* G 0000

You should be greeted by the MEMORY SIZE? prompt.

Enjoy!

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