Texas Instruments 990 Operation Manual page 29

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945255-9701
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8. Repeat steps 3-7 for each of the object files.
9. Rewind and remove the master cassette and store it in a safe place.
Additional information may be found in the Model 990 Computer Model 733 ASR/KSR Data
Terminal Installation and Operation, Manual No. 945259-9701.
File number 3 on the Prototyping System software master cassette is the PX9MTP monitor in
compressed absolute data format. This module must be loaded using the up front loader.
(PX9EDT and PX9ASM must also be loaded with the up front loader.) The monitor will be
loaded in locations 2000
16
to 4000
16 •
This will place the monitor in the upper 4K words of an
8K word system. If the user has another system configuration, he may wish to load the monitor
at a different location. To do this, file 15, the relocatable monitor, must be loaded. By placing a
D tag character in the code, followed by a four-digit hexadecimal bias address and end of record,
the bias for the relocatable monitor may be speCified when the file is being copied from the
master cassette.
Example:
D8000F
First record of monitor.
The monitor will be loaded in locations 8000
16
to AOOO
I6 •
This D tag record may be created in
local mode or by using PX9EDT.
Using the monitor residing at location 2000
16 ,
an absolute code module of the relocated
monitor may be created:
1. Load the absolute code monitor which resides at 2000
16 •
2. Using this monitor or the programmer panel LOAD switch, load the relocatable
monitor at the desired bias.
3. Halt and reset the monitor at 2000
16 •
4. Load the Absolute Dump/Absolute Load overlay.
5. Copy the upfront loader to the beginning of a tape in LOCAL mode.
6. Dump the relocated monitor to the tape with an entry point equal to the bias.
2.5 USING THE 733 ASR ROM LOADER
The following paragraphs present
a
procedure for loading software modules with the 733 ASR
ROM loader, describe loading of PX9MTP with the ROM loader, and give some information on
loading under PX9MTP control.
2.5.1 LOADING STANDARD 990 OBJECT MODULES. Programs or modules in standard 990
object format may be loaded with the 733 ASR ROM loader by using the following procedure.
Refer to figure 2-2; the numbers in parentheses are keyed to the figure.
1. Place the computer in halt mode by pressing the HALT/SIE switch (19) on the
programmer panel.
2-5
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